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Windows-powershell / PowerShell-master /test /powershell /Modules /Microsoft.PowerShell.Utility /ConvertTo-Json.Tests.ps1
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# Copyright (c) Microsoft Corporation.
# Licensed under the MIT License.
Describe 'ConvertTo-Json' -tags "CI" {
 BeforeAll {
 $newline = [System.Environment]::NewLine
 }
It 'Newtonsoft.Json.Linq.Jproperty should be converted to Json properly' {
 $EgJObject = New-Object -TypeName Newtonsoft.Json.Linq.JObject
 $EgJObject.Add("TestValue1", "123456")
 $EgJObject.Add("TestValue2", "78910")
 $EgJObject.Add("TestValue3", "99999")
 $dict = @{}
 $dict.Add('JObject', $EgJObject)
 $dict.Add('StrObject', 'This is a string Object')
 $properties = @{'DictObject' = $dict; 'RandomString' = 'A quick brown fox jumped over the lazy dog'}
 $object = New-Object -TypeName psobject -Property $properties
 $jsonFormat = ConvertTo-Json -InputObject $object
 $jsonFormat | Should -Match '"TestValue1": 123456'
 $jsonFormat | Should -Match '"TestValue2": 78910'
 $jsonFormat | Should -Match '"TestValue3": 99999'
 }
It "StopProcessing should succeed" -Pending:$true {
 $ps = [PowerShell]::Create()
 $null = $ps.AddScript({
 $obj = [PSCustomObject]@{P1 = ''; P2 = ''; P3 = ''; P4 = ''; P5 = ''; P6 = ''}
 $obj.P1 = $obj.P2 = $obj.P3 = $obj.P4 = $obj.P5 = $obj.P6 = $obj
 1..100 | ForEach-Object { $obj } | ConvertTo-Json -Depth 10 -Verbose
 # the conversion is expected to take some time, this throw is in case it doesn't
 throw "Should not have thrown exception"
 })
 $null = $ps.BeginInvoke()
 # wait for verbose message from ConvertTo-Json to ensure cmdlet is processing
 Wait-UntilTrue { $ps.Streams.Verbose.Count -gt 0 } | Should -BeTrue
 $null = $ps.BeginStop($null, $null)
 # wait a bit to ensure state has changed, not using synchronous Stop() to avoid blocking Pester
 Start-Sleep -Milliseconds 100
 $ps.InvocationStateInfo.State | Should -BeExactly "Stopped"
 $ps.Dispose()
 }
It "Should accept minimum depth as 0." {
 $ComplexObject = [PSCustomObject] @{
 FirstLevel1 = @{
 Child1_1 = 0
 Bool = $True
 }
 FirstLevel2 = @{
 Child2_1 = 'Child_2_1_Value'
 Child2_2 = @{
 ChildOfChild2_2= @(1,2,3)
 }
 Float = 1.2
 }
 Integer = 10
 Bool = $False
 }
$ExpectedOutput = '{
 "FirstLevel1": "System.Collections.Hashtable",
 "FirstLevel2": "System.Collections.Hashtable",
 "Integer": 10,
 "Bool": false
}'
$output = $ComplexObject | ConvertTo-Json -Depth 0
 $output | Should -Be $ExpectedOutput
 }
It "The result string is packed in an array symbols when AsArray parameter is used." {
 $output = 1 | ConvertTo-Json -AsArray
 $output | Should -BeLike "``[*1*]"
$output = 1,2 | ConvertTo-Json -AsArray
 $output | Should -BeLike "``[*1*2*]"
 }
It "The result string is not packed in the array symbols when there is only one input object and AsArray parameter is not used." {
 $output = 1 | ConvertTo-Json
 $output | Should -BeExactly '1'
 }
It "The result string should <Name>." -TestCases @(
 @{name = "be not escaped by default."; params = @{}; expected = "{$newline ""abc"": ""'def'""$newline}" }
 @{name = "be not escaped with '-EscapeHandling Default'."; params = @{EscapeHandling = 'Default'}; expected = "{$newline ""abc"": ""'def'""$newline}" }
 @{name = "be escaped with '-EscapeHandling EscapeHtml'."; params = @{EscapeHandling = 'EscapeHtml'}; expected = "{$newline ""abc"": ""\u0027def\u0027""$newline}" }
 ) {
 param ($name, $params ,$expected)
@{ 'abc' = "'def'" } | ConvertTo-Json @params | Should -BeExactly $expected
 }
It "Should handle null" {
 [pscustomobject] @{ prop=$null } | ConvertTo-Json -Compress | Should -BeExactly '{"prop":null}'
 $null | ConvertTo-Json -Compress | Should -Be 'null'
 ConvertTo-Json -Compress $null | Should -Be 'null'
 1, $null, 2 | ConvertTo-Json -Compress | Should -Be '[1,null,2]'
 }
It "Should handle 'AutomationNull.Value' and 'NullString.Value' correctly" {
 [ordered]@{
 a = $null;
 b = [System.Management.Automation.Internal.AutomationNull]::Value;
 c = [System.DBNull]::Value;
 d = [NullString]::Value
 } | ConvertTo-Json -Compress | Should -BeExactly '{"a":null,"b":null,"c":null,"d":null}'
ConvertTo-Json ([System.Management.Automation.Internal.AutomationNull]::Value) | Should -BeExactly 'null'
 ConvertTo-Json ([NullString]::Value) | Should -BeExactly 'null'
ConvertTo-Json -Compress @(
 $null,
 [System.Management.Automation.Internal.AutomationNull]::Value,
 [System.DBNull]::Value,
 [NullString]::Value
 ) | Should -BeExactly '[null,null,null,null]'
 }
It "Should handle the ETS properties added to 'DBNull.Value' and 'NullString.Value'" {
 try
 {
 $p1 = Add-Member -InputObject ([System.DBNull]::Value) -MemberType NoteProperty -Name dbnull -Value 'dbnull' -PassThru
 $p2 = Add-Member -InputObject ([NullString]::Value) -MemberType NoteProperty -Name nullstr -Value 'nullstr' -PassThru
$p1, $p2 | ConvertTo-Json -Compress | Should -BeExactly '[{"value":null,"dbnull":"dbnull"},{"value":null,"nullstr":"nullstr"}]'
 }
 finally
 {
 $p1.psobject.Properties.Remove('dbnull')
 $p2.psobject.Properties.Remove('nullstr')
 }
 }
It 'Should not serialize ETS properties added to DateTime' {
 $date = "2021-06-24T15:54:06.796999-07:00"
 $d = [DateTime]::Parse($date)
# need to use wildcard here due to some systems may be configured with different culture setting showing time in different format
 $d | ConvertTo-Json -Compress | Should -BeLike '"2021-06-24T*'
 $d | ConvertTo-Json | ConvertFrom-Json | Should -Be $d
 }
It 'Should not serialize ETS properties added to String' {
 $text = "Hello there"
 $t = Add-Member -InputObject $text -MemberType NoteProperty -Name text -Value $text -PassThru
 $t | ConvertTo-Json -Compress | Should -BeExactly "`"$text`""
 }
It 'Should serialize BigInteger values' {
 $obj = [Ordered]@{
 Positive = 18446744073709551615n
 Negative = -18446744073709551615n
 }
$actual = ConvertTo-Json -Compress -InputObject $obj
 $actual | Should -Be '{"Positive":18446744073709551615,"Negative":-18446744073709551615}'
 }
 #region Comprehensive Scalar Type Tests (Phase 1)
 # Test coverage for ConvertTo-Json scalar serialization
 # Covers: Pipeline vs InputObject, ETS vs no ETS, all primitive and special types
Context 'Primitive scalar types' {
 It 'Should serialize <TypeName> value <Value> correctly via Pipeline and InputObject' -TestCases @(
 # Byte types
 @{ TypeName = 'byte'; Value = [byte]0; Expected = '0' }
 @{ TypeName = 'byte'; Value = [byte]255; Expected = '255' }
 @{ TypeName = 'sbyte'; Value = [sbyte]-128; Expected = '-128' }
 @{ TypeName = 'sbyte'; Value = [sbyte]127; Expected = '127' }
 # Short types
 @{ TypeName = 'short'; Value = [short]-32768; Expected = '-32768' }
 @{ TypeName = 'short'; Value = [short]32767; Expected = '32767' }
 @{ TypeName = 'ushort'; Value = [ushort]0; Expected = '0' }
 @{ TypeName = 'ushort'; Value = [ushort]65535; Expected = '65535' }
 # Integer types
 @{ TypeName = 'int'; Value = 42; Expected = '42' }
 @{ TypeName = 'int'; Value = -42; Expected = '-42' }
 @{ TypeName = 'int'; Value = 0; Expected = '0' }
 @{ TypeName = 'int'; Value = [int]::MaxValue; Expected = '2147483647' }
 @{ TypeName = 'int'; Value = [int]::MinValue; Expected = '-2147483648' }
 @{ TypeName = 'uint'; Value = [uint]0; Expected = '0' }
 @{ TypeName = 'uint'; Value = [uint]::MaxValue; Expected = '4294967295' }
 # Long types
 @{ TypeName = 'long'; Value = [long]::MaxValue; Expected = '9223372036854775807' }
 @{ TypeName = 'long'; Value = [long]::MinValue; Expected = '-9223372036854775808' }
 @{ TypeName = 'ulong'; Value = [ulong]0; Expected = '0' }
 @{ TypeName = 'ulong'; Value = [ulong]::MaxValue; Expected = '18446744073709551615' }
 # Floating-point types
 @{ TypeName = 'float'; Value = [float]3.14; Expected = '3.14' }
 @{ TypeName = 'float'; Value = [float]::NaN; Expected = '"NaN"' }
 @{ TypeName = 'float'; Value = [float]::PositiveInfinity; Expected = '"Infinity"' }
 @{ TypeName = 'float'; Value = [float]::NegativeInfinity; Expected = '"-Infinity"' }
 @{ TypeName = 'double'; Value = 3.14159; Expected = '3.14159' }
 @{ TypeName = 'double'; Value = -3.14159; Expected = '-3.14159' }
 @{ TypeName = 'double'; Value = 0.0; Expected = '0.0' }
 @{ TypeName = 'double'; Value = [double]::NaN; Expected = '"NaN"' }
 @{ TypeName = 'double'; Value = [double]::PositiveInfinity; Expected = '"Infinity"' }
 @{ TypeName = 'double'; Value = [double]::NegativeInfinity; Expected = '"-Infinity"' }
 @{ TypeName = 'decimal'; Value = 123.456d; Expected = '123.456' }
 # BigInteger
 @{ TypeName = 'BigInteger'; Value = 18446744073709551615n; Expected = '18446744073709551615' }
 # Boolean
 @{ TypeName = 'bool'; Value = $true; Expected = 'true' }
 @{ TypeName = 'bool'; Value = $false; Expected = 'false' }
 # Null
 @{ TypeName = 'null'; Value = $null; Expected = 'null' }
 ) {
 param($TypeName, $Value, $Expected)
 $jsonPipeline = $Value | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $Value -Compress
 $jsonPipeline | Should -BeExactly $Expected
 $jsonInputObject | Should -BeExactly $Expected
 }
It 'Should include ETS properties on <TypeName>' -TestCases @(
 @{ TypeName = 'int'; Value = 42; Expected = '{"value":42,"MyProp":"test"}' }
 @{ TypeName = 'double'; Value = 3.14; Expected = '{"value":3.14,"MyProp":"test"}' }
 ) {
 param($TypeName, $Value, $Expected)
 $valueWithEts = Add-Member -InputObject $Value -MemberType NoteProperty -Name MyProp -Value 'test' -PassThru
 $json = $valueWithEts | ConvertTo-Json -Compress
 $json | Should -BeExactly $Expected
 }
 }
Context 'String scalar types' {
 It 'Should serialize string <Description> correctly via Pipeline and InputObject' -TestCases @(
 @{ Description = 'regular'; Value = 'hello'; Expected = '"hello"' }
 @{ Description = 'empty'; Value = ''; Expected = '""' }
 @{ Description = 'with spaces'; Value = 'hello world'; Expected = '"hello world"' }
 @{ Description = 'with newline'; Value = "line1`nline2"; Expected = '"line1\nline2"' }
 @{ Description = 'with tab'; Value = "col1`tcol2"; Expected = '"col1\tcol2"' }
 @{ Description = 'with quotes'; Value = 'say "hello"'; Expected = '"say \"hello\""' }
 @{ Description = 'with backslash'; Value = 'c:\path'; Expected = '"c:\\path"' }
 @{ Description = 'unicode'; Value = '???'; Expected = '"???"' }
 @{ Description = 'emoji'; Value = '??'; Expected = '"??"' }
 ) {
 param($Description, $Value, $Expected)
 $jsonPipeline = $Value | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $Value -Compress
 $jsonPipeline | Should -BeExactly $Expected
 $jsonInputObject | Should -BeExactly $Expected
 }
It 'Should ignore ETS properties on string' {
 $str = Add-Member -InputObject 'hello' -MemberType NoteProperty -Name MyProp -Value 'test' -PassThru
 $json = $str | ConvertTo-Json -Compress
 $json | Should -BeExactly '"hello"'
 }
 }
Context 'DateTime and related types' {
 It 'Should serialize DateTime with UTC kind via Pipeline and InputObject' {
 $dt = [DateTime]::new(2024, 6, 15, 10, 30, 0, [DateTimeKind]::Utc)
 $jsonPipeline = $dt | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $dt -Compress
 $jsonPipeline | Should -BeExactly '"2024-06-15T10:30:00Z"'
 $jsonInputObject | Should -BeExactly '"2024-06-15T10:30:00Z"'
 }
It 'Should serialize DateTime with Local kind' {
 $dt = [DateTime]::new(2024, 6, 15, 10, 30, 0, [DateTimeKind]::Local)
 $json = $dt | ConvertTo-Json -Compress
 $offset = $dt.ToString('zzz')
 $expected = '"2024-06-15T10:30:00' + $offset + '"'
 $json | Should -BeExactly $expected
 }
It 'Should serialize DateTime with Unspecified kind via Pipeline and InputObject' {
 $dt = [DateTime]::new(2024, 6, 15, 10, 30, 0, [DateTimeKind]::Unspecified)
 $jsonPipeline = $dt | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $dt -Compress
 $jsonPipeline | Should -BeExactly '"2024-06-15T10:30:00"'
 $jsonInputObject | Should -BeExactly '"2024-06-15T10:30:00"'
 }
It 'Should serialize DateTimeOffset correctly via Pipeline and InputObject' {
 $dto = [DateTimeOffset]::new(2024, 6, 15, 10, 30, 0, [TimeSpan]::FromHours(9))
 $jsonPipeline = $dto | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $dto -Compress
 $jsonPipeline | Should -BeExactly '"2024-06-15T10:30:00+09:00"'
 $jsonInputObject | Should -BeExactly '"2024-06-15T10:30:00+09:00"'
 }
It 'Should serialize DateOnly as object with properties' {
 $d = [DateOnly]::new(2024, 6, 15)
 $json = $d | ConvertTo-Json -Compress
 $json | Should -BeExactly '{"Year":2024,"Month":6,"Day":15,"DayOfWeek":6,"DayOfYear":167,"DayNumber":739051}'
 }
It 'Should serialize TimeOnly as object with properties' {
 $t = [TimeOnly]::new(10, 30, 45)
 $json = $t | ConvertTo-Json -Compress
 $json | Should -BeExactly '{"Hour":10,"Minute":30,"Second":45,"Millisecond":0,"Microsecond":0,"Nanosecond":0,"Ticks":378450000000}'
 }
It 'Should serialize TimeSpan as object with properties' {
 $ts = [TimeSpan]::new(1, 2, 3, 4, 5)
 $json = $ts | ConvertTo-Json -Compress
 $json | Should -BeExactly '{"Ticks":937840050000,"Days":1,"Hours":2,"Milliseconds":5,"Microseconds":0,"Nanoseconds":0,"Minutes":3,"Seconds":4,"TotalDays":1.0854630208333333,"TotalHours":26.0511125,"TotalMilliseconds":93784005.0,"TotalMicroseconds":93784005000.0,"TotalNanoseconds":93784005000000.0,"TotalMinutes":1563.06675,"TotalSeconds":93784.005}'
 }
It 'Should ignore ETS properties on DateTime' {
 $dt = [DateTime]::new(2024, 6, 15, 0, 0, 0, [DateTimeKind]::Utc)
 $dt = Add-Member -InputObject $dt -MemberType NoteProperty -Name MyProp -Value 'test' -PassThru
 $json = $dt | ConvertTo-Json -Compress
 $json | Should -BeExactly '"2024-06-15T00:00:00Z"'
 }
It 'Should include ETS properties on DateTimeOffset' {
 $dto = [DateTimeOffset]::new(2024, 6, 15, 10, 30, 0, [TimeSpan]::Zero)
 $dto = Add-Member -InputObject $dto -MemberType NoteProperty -Name MyProp -Value 'test' -PassThru
 $json = $dto | ConvertTo-Json -Compress
 $json | Should -BeExactly '{"value":"2024-06-15T10:30:00+00:00","MyProp":"test"}'
 }
It 'Should include ETS properties on DateOnly' {
 $d = [DateOnly]::new(2024, 6, 15)
 $d = Add-Member -InputObject $d -MemberType NoteProperty -Name MyProp -Value 'test' -PassThru
 $json = $d | ConvertTo-Json -Compress
 $json | Should -BeExactly '{"Year":2024,"Month":6,"Day":15,"DayOfWeek":6,"DayOfYear":167,"DayNumber":739051,"MyProp":"test"}'
 }
It 'Should include ETS properties on TimeOnly' {
 $t = [TimeOnly]::new(10, 30, 45)
 $t = Add-Member -InputObject $t -MemberType NoteProperty -Name MyProp -Value 'test' -PassThru
 $json = $t | ConvertTo-Json -Compress
 $json | Should -BeExactly '{"Hour":10,"Minute":30,"Second":45,"Millisecond":0,"Microsecond":0,"Nanosecond":0,"Ticks":378450000000,"MyProp":"test"}'
 }
 }
Context 'Guid type' {
 It 'Should serialize Guid as string via InputObject' {
 $guid = [Guid]::new('12345678-1234-1234-1234-123456789abc')
 $json = ConvertTo-Json -InputObject $guid -Compress
 $json | Should -BeExactly '"12345678-1234-1234-1234-123456789abc"'
 }
It 'Should serialize Guid with Extended properties via Pipeline' {
 $guid = [Guid]::new('12345678-1234-1234-1234-123456789abc')
 $json = $guid | ConvertTo-Json -Compress
 $json | Should -BeExactly '{"value":"12345678-1234-1234-1234-123456789abc","Guid":"12345678-1234-1234-1234-123456789abc"}'
 }
It 'Should serialize empty Guid correctly via InputObject' {
 $json = ConvertTo-Json -InputObject ([Guid]::Empty) -Compress
 $json | Should -BeExactly '"00000000-0000-0000-0000-000000000000"'
 }
It 'Should include ETS properties on Guid via Pipeline' {
 $guid = [Guid]::new('12345678-1234-1234-1234-123456789abc')
 $guid = Add-Member -InputObject $guid -MemberType NoteProperty -Name MyProp -Value 'test' -PassThru
 $json = $guid | ConvertTo-Json -Compress
 $json | Should -BeExactly '{"value":"12345678-1234-1234-1234-123456789abc","MyProp":"test","Guid":"12345678-1234-1234-1234-123456789abc"}'
 }
 }
Context 'Uri type' {
 It 'Should serialize Uri <Description> correctly via Pipeline and InputObject' -TestCases @(
 @{ Description = 'http'; UriString = 'http://example.com'; Expected = '"http://example.com"' }
 @{ Description = 'https with path'; UriString = 'https://example.com/path'; Expected = '"https://example.com/path"' }
 @{ Description = 'with query'; UriString = 'https://example.com/search?q=test'; Expected = '"https://example.com/search?q=test"' }
 @{ Description = 'file'; UriString = 'file:///c:/temp/file.txt'; Expected = '"file:///c:/temp/file.txt"' }
 ) {
 param($Description, $UriString, $Expected)
 $uri = [Uri]$UriString
 $jsonPipeline = $uri | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $uri -Compress
 $jsonPipeline | Should -BeExactly $Expected
 $jsonInputObject | Should -BeExactly $Expected
 }
It 'Should include ETS properties on Uri' {
 $uri = [Uri]'https://example.com'
 $uri = Add-Member -InputObject $uri -MemberType NoteProperty -Name MyProp -Value 'test' -PassThru
 $json = $uri | ConvertTo-Json -Compress
 $json | Should -BeExactly '{"value":"https://example.com","MyProp":"test"}'
 }
 }
Context 'Enum types' {
 It 'Should serialize enum <EnumType>::<Value> as <Expected> via Pipeline and InputObject' -TestCases @(
 @{ EnumType = 'System.DayOfWeek'; Value = 'Sunday'; Expected = '0' }
 @{ EnumType = 'System.DayOfWeek'; Value = 'Monday'; Expected = '1' }
 @{ EnumType = 'System.DayOfWeek'; Value = 'Saturday'; Expected = '6' }
 @{ EnumType = 'System.ConsoleColor'; Value = 'Red'; Expected = '12' }
 @{ EnumType = 'System.IO.FileAttributes'; Value = 'ReadOnly'; Expected = '1' }
 @{ EnumType = 'System.IO.FileAttributes'; Value = 'Hidden'; Expected = '2' }
 ) {
 param($EnumType, $Value, $Expected)
 $enumValue = [Enum]::Parse($EnumType, $Value)
 $jsonPipeline = $enumValue | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $enumValue -Compress
 $jsonPipeline | Should -BeExactly $Expected
 $jsonInputObject | Should -BeExactly $Expected
 }
It 'Should serialize enum as "<Expected>" with -EnumsAsStrings' -TestCases @(
 @{ EnumType = 'System.DayOfWeek'; Value = 'Sunday'; Expected = 'Sunday' }
 @{ EnumType = 'System.DayOfWeek'; Value = 'Monday'; Expected = 'Monday' }
 @{ EnumType = 'System.ConsoleColor'; Value = 'Red'; Expected = 'Red' }
 ) {
 param($EnumType, $Value, $Expected)
 $enumValue = [Enum]::Parse($EnumType, $Value)
 $json = $enumValue | ConvertTo-Json -Compress -EnumsAsStrings
 $json | Should -BeExactly "`"$Expected`""
 }
It 'Should serialize flags enum correctly via Pipeline and InputObject' {
 $flags = [System.IO.FileAttributes]::ReadOnly -bor [System.IO.FileAttributes]::Hidden
 $jsonPipeline = $flags | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $flags -Compress
 $jsonPipeline | Should -BeExactly '3'
 $jsonInputObject | Should -BeExactly '3'
 }
It 'Should serialize flags enum as string with -EnumsAsStrings' {
 $flags = [System.IO.FileAttributes]::ReadOnly -bor [System.IO.FileAttributes]::Hidden
 $json = $flags | ConvertTo-Json -Compress -EnumsAsStrings
 $json | Should -BeExactly '"ReadOnly, Hidden"'
 }
It 'Should include ETS properties on Enum' {
 $enum = Add-Member -InputObject ([DayOfWeek]::Monday) -MemberType NoteProperty -Name MyProp -Value 'test' -PassThru
 $json = $enum | ConvertTo-Json -Compress
 $json | Should -BeExactly '{"value":1,"MyProp":"test"}'
 }
 }
Context 'IPAddress type' {
 It 'Should serialize IPAddress v4 correctly via InputObject' {
 $ip = [System.Net.IPAddress]::Parse('192.168.1.1')
 $json = ConvertTo-Json -InputObject $ip -Compress
 $json | Should -BeExactly '{"AddressFamily":2,"ScopeId":null,"IsIPv6Multicast":false,"IsIPv6LinkLocal":false,"IsIPv6SiteLocal":false,"IsIPv6Teredo":false,"IsIPv6UniqueLocal":false,"IsIPv4MappedToIPv6":false,"Address":16885952}'
 }
It 'Should serialize IPAddress v4 correctly via Pipeline' {
 $ip = [System.Net.IPAddress]::Parse('192.168.1.1')
 $json = $ip | ConvertTo-Json -Compress
 $json | Should -BeExactly '{"AddressFamily":2,"ScopeId":null,"IsIPv6Multicast":false,"IsIPv6LinkLocal":false,"IsIPv6SiteLocal":false,"IsIPv6Teredo":false,"IsIPv6UniqueLocal":false,"IsIPv4MappedToIPv6":false,"Address":16885952,"IPAddressToString":"192.168.1.1"}'
 }
It 'Should serialize IPAddress v6 correctly via InputObject' {
 $ip = [System.Net.IPAddress]::Parse('::1')
 $json = ConvertTo-Json -InputObject $ip -Compress
 $json | Should -BeExactly '{"AddressFamily":23,"ScopeId":0,"IsIPv6Multicast":false,"IsIPv6LinkLocal":false,"IsIPv6SiteLocal":false,"IsIPv6Teredo":false,"IsIPv6UniqueLocal":false,"IsIPv4MappedToIPv6":false,"Address":null}'
 }
It 'Should serialize IPAddress v6 correctly via Pipeline' {
 $ip = [System.Net.IPAddress]::Parse('::1')
 $json = $ip | ConvertTo-Json -Compress
 $json | Should -BeExactly '{"AddressFamily":23,"ScopeId":0,"IsIPv6Multicast":false,"IsIPv6LinkLocal":false,"IsIPv6SiteLocal":false,"IsIPv6Teredo":false,"IsIPv6UniqueLocal":false,"IsIPv4MappedToIPv6":false,"Address":null,"IPAddressToString":"::1"}'
 }
It 'Should include ETS properties on IPAddress' {
 $ip = [System.Net.IPAddress]::Parse('192.168.1.1')
 $ip = Add-Member -InputObject $ip -MemberType NoteProperty -Name MyProp -Value 'test' -PassThru
 $json = $ip | ConvertTo-Json -Compress
 $json | Should -BeExactly '{"AddressFamily":2,"ScopeId":null,"IsIPv6Multicast":false,"IsIPv6LinkLocal":false,"IsIPv6SiteLocal":false,"IsIPv6Teredo":false,"IsIPv6UniqueLocal":false,"IsIPv4MappedToIPv6":false,"Address":16885952,"MyProp":"test","IPAddressToString":"192.168.1.1"}'
 }
 }
Context 'Scalars as elements of arrays' {
 It 'Should serialize array of <TypeName> correctly via Pipeline and InputObject' -TestCases @(
 @{ TypeName = 'int'; Values = @(1, 2, 3); Expected = '[1,2,3]' }
 @{ TypeName = 'string'; Values = @('a', 'b', 'c'); Expected = '["a","b","c"]' }
 @{ TypeName = 'double'; Values = @(1.1, 2.2, 3.3); Expected = '[1.1,2.2,3.3]' }
 ) {
 param($TypeName, $Values, $Expected)
 $jsonPipeline = $Values | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $Values -Compress
 $jsonPipeline | Should -BeExactly $Expected
 $jsonInputObject | Should -BeExactly $Expected
 }
# Note: bool array test uses InputObject only because $true/$false are singletons
 # and ETS properties added in other tests would affect Pipeline serialization
 It 'Should serialize array of bool correctly via InputObject' {
 $bools = @($true, $false, $true)
 $json = ConvertTo-Json -InputObject $bools -Compress
 $json | Should -BeExactly '[true,false,true]'
 }
It 'Should serialize array of Guid with Extended properties via Pipeline' {
 $guids = @(
 [Guid]'11111111-1111-1111-1111-111111111111',
 [Guid]'22222222-2222-2222-2222-222222222222'
 )
 $json = $guids | ConvertTo-Json -Compress
 $json | Should -BeExactly '[{"value":"11111111-1111-1111-1111-111111111111","Guid":"11111111-1111-1111-1111-111111111111"},{"value":"22222222-2222-2222-2222-222222222222","Guid":"22222222-2222-2222-2222-222222222222"}]'
 }
It 'Should serialize array of enum correctly via Pipeline and InputObject' {
 $enums = @([DayOfWeek]::Monday, [DayOfWeek]::Wednesday, [DayOfWeek]::Friday)
 $jsonPipeline = $enums | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $enums -Compress
 $jsonPipeline | Should -BeExactly '[1,3,5]'
 $jsonInputObject | Should -BeExactly '[1,3,5]'
 }
It 'Should serialize array of enum as strings with -EnumsAsStrings' {
 $enums = @([DayOfWeek]::Monday, [DayOfWeek]::Wednesday, [DayOfWeek]::Friday)
 $json = $enums | ConvertTo-Json -Compress -EnumsAsStrings
 $json | Should -BeExactly '["Monday","Wednesday","Friday"]'
 }
# Note: mixed array test uses InputObject only due to $true singleton issue
 It 'Should serialize mixed type array correctly via InputObject' {
 $mixed = @(1, 'two', $true, 3.14)
 $json = ConvertTo-Json -InputObject $mixed -Compress
 $json | Should -BeExactly '[1,"two",true,3.14]'
 }
It 'Should serialize array with null elements correctly' {
 $arr = @(1, $null, 'three')
 $json = $arr | ConvertTo-Json -Compress
 $json | Should -BeExactly '[1,null,"three"]'
 }
It 'Should include ETS properties on array via InputObject' {
 $arr = @(1, 2, 3)
 $arr = Add-Member -InputObject $arr -MemberType NoteProperty -Name MyProp -Value 'test' -PassThru
 $json = ConvertTo-Json -InputObject $arr -Compress
 $json | Should -BeExactly '{"value":[1,2,3],"MyProp":"test"}'
 }
 }
Context 'Scalars as values in hashtables and PSCustomObject' {
 It 'Should serialize hashtable with scalar values correctly via Pipeline and InputObject' {
 $hash = [ordered]@{
 intVal = 42
 strVal = 'hello'
 boolVal = $true
 doubleVal = 3.14
 nullVal = $null
 }
 $expected = '{"intVal":42,"strVal":"hello","boolVal":true,"doubleVal":3.14,"nullVal":null}'
 $jsonPipeline = $hash | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $hash -Compress
 $jsonPipeline | Should -BeExactly $expected
 $jsonInputObject | Should -BeExactly $expected
 }
It 'Should serialize PSCustomObject with scalar values correctly via Pipeline and InputObject' {
 $obj = [PSCustomObject]@{
 intVal = 42
 strVal = 'hello'
 boolVal = $true
 doubleVal = 3.14
 }
 $expected = '{"intVal":42,"strVal":"hello","boolVal":true,"doubleVal":3.14}'
 $jsonPipeline = $obj | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $obj -Compress
 $jsonPipeline | Should -BeExactly $expected
 $jsonInputObject | Should -BeExactly $expected
 }
It 'Should serialize hashtable with <TypeName> value correctly' -TestCases @(
 @{ TypeName = 'DateTime'; Value = [DateTime]::new(2024, 6, 15, 10, 30, 0, [DateTimeKind]::Utc); Expected = '{"val":"2024-06-15T10:30:00Z"}' }
 @{ TypeName = 'Guid'; Value = [Guid]'12345678-1234-1234-1234-123456789abc'; Expected = '{"val":"12345678-1234-1234-1234-123456789abc"}' }
 @{ TypeName = 'Enum'; Value = [DayOfWeek]::Monday; Expected = '{"val":1}' }
 @{ TypeName = 'Uri'; Value = [Uri]'https://example.com'; Expected = '{"val":"https://example.com"}' }
 @{ TypeName = 'BigInteger'; Value = 18446744073709551615n; Expected = '{"val":18446744073709551615}' }
 ) {
 param($TypeName, $Value, $Expected)
 $hash = @{ val = $Value }
 $jsonPipeline = $hash | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $hash -Compress
 $jsonPipeline | Should -BeExactly $Expected
 $jsonInputObject | Should -BeExactly $Expected
 }
It 'Should serialize hashtable with enum as string correctly' {
 $hash = @{ day = [DayOfWeek]::Monday }
 $json = $hash | ConvertTo-Json -Compress -EnumsAsStrings
 $json | Should -BeExactly '{"day":"Monday"}'
 }
It 'Should include ETS properties on hashtable via InputObject' {
 $hash = @{ a = 1 }
 $hash = Add-Member -InputObject $hash -MemberType NoteProperty -Name MyProp -Value 'test' -PassThru
 $json = ConvertTo-Json -InputObject $hash -Compress
 $json | Should -BeExactly '{"a":1,"MyProp":"test"}'
 }
 }
#endregion Comprehensive Scalar Type Tests (Phase 1)
#region Comprehensive Array and Dictionary Tests (Phase 2)
 # Test coverage for ConvertTo-Json array and dictionary serialization
 # Covers: Pipeline vs InputObject, ETS vs no ETS, nested structures
Context 'Array basic serialization' {
 It 'Should serialize empty array correctly via Pipeline and InputObject' {
 $arr = @()
 $jsonPipeline = ,$arr | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $arr -Compress
 $jsonPipeline | Should -BeExactly '[]'
 $jsonInputObject | Should -BeExactly '[]'
 }
It 'Should serialize single element array correctly via Pipeline and InputObject' {
 $arr = @(42)
 $jsonPipeline = ,$arr | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $arr -Compress
 $jsonPipeline | Should -BeExactly '[42]'
 $jsonInputObject | Should -BeExactly '[42]'
 }
It 'Should serialize multi-element array correctly via Pipeline and InputObject' {
 $arr = @(1, 2, 3, 4, 5)
 $jsonPipeline = ,$arr | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $arr -Compress
 $jsonPipeline | Should -BeExactly '[1,2,3,4,5]'
 $jsonInputObject | Should -BeExactly '[1,2,3,4,5]'
 }
It 'Should serialize string array correctly via Pipeline and InputObject' {
 $arr = @('apple', 'banana', 'cherry')
 $jsonPipeline = ,$arr | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $arr -Compress
 $jsonPipeline | Should -BeExactly '["apple","banana","cherry"]'
 $jsonInputObject | Should -BeExactly '["apple","banana","cherry"]'
 }
It 'Should serialize typed array correctly via Pipeline and InputObject' {
 [int[]]$arr = @(10, 20, 30)
 $jsonPipeline = ,$arr | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $arr -Compress
 $jsonPipeline | Should -BeExactly '[10,20,30]'
 $jsonInputObject | Should -BeExactly '[10,20,30]'
 }
It 'Should serialize array with single null element correctly via Pipeline and InputObject' {
 $arr = @($null)
 $jsonPipeline = ,$arr | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $arr -Compress
 $jsonPipeline | Should -BeExactly '[null]'
 $jsonInputObject | Should -BeExactly '[null]'
 }
It 'Should serialize array with multiple null elements correctly via Pipeline and InputObject' {
 $arr = @($null, $null, $null)
 $jsonPipeline = ,$arr | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $arr -Compress
 $jsonPipeline | Should -BeExactly '[null,null,null]'
 $jsonInputObject | Should -BeExactly '[null,null,null]'
 }
 }
Context 'Nested arrays' {
 It 'Should serialize 2D array correctly via Pipeline and InputObject' {
 $arr = @(@(1, 2), @(3, 4))
 $jsonPipeline = ,$arr | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $arr -Compress
 $jsonPipeline | Should -BeExactly '[[1,2],[3,4]]'
 $jsonInputObject | Should -BeExactly '[[1,2],[3,4]]'
 }
It 'Should serialize 3D array correctly via Pipeline and InputObject' {
 $arr = @(@(@(1, 2), @(3, 4)), @(@(5, 6), @(7, 8)))
 $jsonPipeline = ,$arr | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $arr -Compress
 $jsonPipeline | Should -BeExactly '[[[1,2],[3,4]],[[5,6],[7,8]]]'
 $jsonInputObject | Should -BeExactly '[[[1,2],[3,4]],[[5,6],[7,8]]]'
 }
It 'Should serialize jagged array correctly via Pipeline and InputObject' {
 $arr = @(@(1), @(2, 3), @(4, 5, 6))
 $jsonPipeline = ,$arr | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $arr -Compress
 $jsonPipeline | Should -BeExactly '[[1],[2,3],[4,5,6]]'
 $jsonInputObject | Should -BeExactly '[[1],[2,3],[4,5,6]]'
 }
It 'Should serialize array containing empty arrays correctly via Pipeline and InputObject' {
 $arr = @(@(), @(1), @())
 $jsonPipeline = ,$arr | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $arr -Compress
 $jsonPipeline | Should -BeExactly '[[],[1],[]]'
 $jsonInputObject | Should -BeExactly '[[],[1],[]]'
 }
It 'Should serialize deeply nested array with Depth limit using ToString via Pipeline and InputObject' {
 $ip = [System.Net.IPAddress]::Parse('192.168.1.1')
 $arr = ,(,(,(,($ip))))
 $jsonPipeline = ,$arr | ConvertTo-Json -Compress -Depth 2
 $jsonInputObject = ConvertTo-Json -InputObject $arr -Compress -Depth 2
 $jsonPipeline | Should -BeExactly '[[["192.168.1.1"]]]'
 $jsonInputObject | Should -BeExactly '[[["192.168.1.1"]]]'
 }
It 'Should serialize deeply nested array with sufficient Depth as full object via Pipeline and InputObject' {
 $ip = [System.Net.IPAddress]::Parse('192.168.1.1')
 $arr = ,(,(,(,($ip))))
 $expected = '[[[[{"AddressFamily":2,"ScopeId":null,"IsIPv6Multicast":false,"IsIPv6LinkLocal":false,"IsIPv6SiteLocal":false,"IsIPv6Teredo":false,"IsIPv6UniqueLocal":false,"IsIPv4MappedToIPv6":false,"Address":16885952}]]]]'
 $jsonPipeline = ,$arr | ConvertTo-Json -Compress -Depth 10
 $jsonInputObject = ConvertTo-Json -InputObject $arr -Compress -Depth 10
 $jsonPipeline | Should -BeExactly $expected
 $jsonInputObject | Should -BeExactly $expected
 }
 }
Context 'Array with mixed content types' {
 It 'Should serialize array with mixed scalars correctly via Pipeline and InputObject' {
 $arr = @(1, 'two', 3.14, $true, $null)
 $jsonPipeline = ,$arr | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $arr -Compress
 $jsonPipeline | Should -BeExactly '[1,"two",3.14,true,null]'
 $jsonInputObject | Should -BeExactly '[1,"two",3.14,true,null]'
 }
It 'Should serialize array with nested array and scalars correctly via Pipeline and InputObject' {
 $arr = @(1, @(2, 3), 4)
 $jsonPipeline = ,$arr | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $arr -Compress
 $jsonPipeline | Should -BeExactly '[1,[2,3],4]'
 $jsonInputObject | Should -BeExactly '[1,[2,3],4]'
 }
It 'Should serialize array with PSCustomObject elements correctly via Pipeline and InputObject' {
 $arr = @([PSCustomObject]@{x = 1}, [PSCustomObject]@{y = 2})
 $jsonPipeline = ,$arr | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $arr -Compress
 $jsonPipeline | Should -BeExactly '[{"x":1},{"y":2}]'
 $jsonInputObject | Should -BeExactly '[{"x":1},{"y":2}]'
 }
It 'Should serialize array with DateTime elements correctly via Pipeline and InputObject' {
 $date1 = [DateTime]::new(2024, 6, 15, 10, 30, 0, [DateTimeKind]::Utc)
 $date2 = [DateTime]::new(2024, 12, 25, 0, 0, 0, [DateTimeKind]::Utc)
 $arr = @($date1, $date2)
 $expected = '["2024-06-15T10:30:00Z","2024-12-25T00:00:00Z"]'
 $jsonPipeline = ,$arr | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $arr -Compress
 $jsonPipeline | Should -BeExactly $expected
 $jsonInputObject | Should -BeExactly $expected
 }
It 'Should serialize array with Guid elements correctly via Pipeline and InputObject' {
 $guid1 = [Guid]'12345678-1234-1234-1234-123456789abc'
 $guid2 = [Guid]'87654321-4321-4321-4321-cba987654321'
 $arr = @($guid1, $guid2)
 $expected = '["12345678-1234-1234-1234-123456789abc","87654321-4321-4321-4321-cba987654321"]'
 $jsonPipeline = ,$arr | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $arr -Compress
 $jsonPipeline | Should -BeExactly $expected
 $jsonInputObject | Should -BeExactly $expected
 }
It 'Should serialize array with enum elements correctly via Pipeline and InputObject' {
 $arr = @([DayOfWeek]::Monday, [DayOfWeek]::Friday)
 $jsonPipeline = ,$arr | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $arr -Compress
 $jsonPipeline | Should -BeExactly '[1,5]'
 $jsonInputObject | Should -BeExactly '[1,5]'
 }
It 'Should serialize array with enum as string correctly via Pipeline and InputObject' {
 $arr = @([DayOfWeek]::Monday, [DayOfWeek]::Friday)
 $jsonPipeline = ,$arr | ConvertTo-Json -Compress -EnumsAsStrings
 $jsonInputObject = ConvertTo-Json -InputObject $arr -Compress -EnumsAsStrings
 $jsonPipeline | Should -BeExactly '["Monday","Friday"]'
 $jsonInputObject | Should -BeExactly '["Monday","Friday"]'
 }
 }
Context 'Array ETS properties' {
 It 'Should include ETS properties on array via Pipeline and InputObject' {
 $arr = @(1, 2, 3)
 $arr = Add-Member -InputObject $arr -MemberType NoteProperty -Name ArrayName -Value 'MyArray' -PassThru
 $jsonPipeline = ,$arr | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $arr -Compress
 $jsonPipeline | Should -BeExactly '{"value":[1,2,3],"ArrayName":"MyArray"}'
 $jsonInputObject | Should -BeExactly '{"value":[1,2,3],"ArrayName":"MyArray"}'
 }
It 'Should include multiple ETS properties on array via Pipeline and InputObject' {
 $arr = @('a', 'b')
 $arr = Add-Member -InputObject $arr -MemberType NoteProperty -Name Prop1 -Value 'val1' -PassThru
 $arr = Add-Member -InputObject $arr -MemberType NoteProperty -Name Prop2 -Value 'val2' -PassThru
 $jsonPipeline = ,$arr | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $arr -Compress
 $jsonPipeline | Should -BeExactly '{"value":["a","b"],"Prop1":"val1","Prop2":"val2"}'
 $jsonInputObject | Should -BeExactly '{"value":["a","b"],"Prop1":"val1","Prop2":"val2"}'
 }
 }
Context 'Hashtable basic serialization' {
 It 'Should serialize empty hashtable correctly via Pipeline and InputObject' {
 $hash = @{}
 $jsonPipeline = $hash | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $hash -Compress
 $jsonPipeline | Should -BeExactly '{}'
 $jsonInputObject | Should -BeExactly '{}'
 }
It 'Should serialize single key hashtable correctly via Pipeline and InputObject' {
 $hash = @{ key = 'value' }
 $jsonPipeline = $hash | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $hash -Compress
 $jsonPipeline | Should -BeExactly '{"key":"value"}'
 $jsonInputObject | Should -BeExactly '{"key":"value"}'
 }
It 'Should serialize hashtable with null value correctly via Pipeline and InputObject' {
 $hash = @{ nullKey = $null }
 $jsonPipeline = $hash | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $hash -Compress
 $jsonPipeline | Should -BeExactly '{"nullKey":null}'
 $jsonInputObject | Should -BeExactly '{"nullKey":null}'
 }
It 'Should serialize hashtable with various scalar types correctly via Pipeline and InputObject' {
 $hash = [ordered]@{
 intKey = 42
 strKey = 'hello'
 boolKey = $true
 doubleKey = 3.14
 }
 $expected = '{"intKey":42,"strKey":"hello","boolKey":true,"doubleKey":3.14}'
 $jsonPipeline = $hash | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $hash -Compress
 $jsonPipeline | Should -BeExactly $expected
 $jsonInputObject | Should -BeExactly $expected
 }
 }
Context 'OrderedDictionary serialization' {
 It 'Should preserve order in OrderedDictionary via Pipeline and InputObject' {
 $ordered = [ordered]@{
 z = 1
 a = 2
 m = 3
 }
 $expected = '{"z":1,"a":2,"m":3}'
 $jsonPipeline = $ordered | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $ordered -Compress
 $jsonPipeline | Should -BeExactly $expected
 $jsonInputObject | Should -BeExactly $expected
 }
It 'Should serialize large OrderedDictionary preserving order via Pipeline and InputObject' {
 $ordered = [ordered]@{}
 1..5 | ForEach-Object { $ordered["key$_"] = $_ }
 $expected = '{"key1":1,"key2":2,"key3":3,"key4":4,"key5":5}'
 $jsonPipeline = $ordered | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $ordered -Compress
 $jsonPipeline | Should -BeExactly $expected
 $jsonInputObject | Should -BeExactly $expected
 }
 }
Context 'Nested dictionaries' {
 It 'Should serialize nested hashtable correctly via Pipeline and InputObject' {
 $hash = @{
 outer = @{
 inner = 'value'
 }
 }
 $jsonPipeline = $hash | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $hash -Compress
 $jsonPipeline | Should -BeExactly '{"outer":{"inner":"value"}}'
 $jsonInputObject | Should -BeExactly '{"outer":{"inner":"value"}}'
 }
It 'Should serialize deeply nested hashtable correctly via Pipeline and InputObject' {
 $hash = @{
 level1 = @{
 level2 = @{
 level3 = 'deep'
 }
 }
 }
 $jsonPipeline = $hash | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $hash -Compress
 $jsonPipeline | Should -BeExactly '{"level1":{"level2":{"level3":"deep"}}}'
 $jsonInputObject | Should -BeExactly '{"level1":{"level2":{"level3":"deep"}}}'
 }
It 'Should serialize nested hashtable with Depth limit via Pipeline and InputObject' {
 $hash = @{
 level1 = @{
 level2 = @{
 level3 = 'deep'
 }
 }
 }
 $jsonPipeline = $hash | ConvertTo-Json -Compress -Depth 1
 $jsonInputObject = ConvertTo-Json -InputObject $hash -Compress -Depth 1
 $jsonPipeline | Should -BeExactly '{"level1":{"level2":"System.Collections.Hashtable"}}'
 $jsonInputObject | Should -BeExactly '{"level1":{"level2":"System.Collections.Hashtable"}}'
 }
It 'Should serialize hashtable with array value correctly via Pipeline and InputObject' {
 $hash = @{ arr = @(1, 2, 3) }
 $jsonPipeline = $hash | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $hash -Compress
 $jsonPipeline | Should -BeExactly '{"arr":[1,2,3]}'
 $jsonInputObject | Should -BeExactly '{"arr":[1,2,3]}'
 }
It 'Should serialize hashtable with nested array of hashtables correctly via Pipeline and InputObject' {
 $hash = @{
 items = @(
 @{ id = 1 },
 @{ id = 2 }
 )
 }
 $jsonPipeline = $hash | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $hash -Compress
 $jsonPipeline | Should -BeExactly '{"items":[{"id":1},{"id":2}]}'
 $jsonInputObject | Should -BeExactly '{"items":[{"id":1},{"id":2}]}'
 }
 }
Context 'Dictionary key types' {
 It 'Should serialize hashtable with string keys correctly via Pipeline and InputObject' {
 $hash = @{ 'string-key' = 'value' }
 $jsonPipeline = $hash | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $hash -Compress
 $jsonPipeline | Should -BeExactly '{"string-key":"value"}'
 $jsonInputObject | Should -BeExactly '{"string-key":"value"}'
 }
It 'Should serialize hashtable with special character keys correctly via Pipeline and InputObject' {
 $hash = [ordered]@{
 'key with space' = 1
 'key-with-dash' = 2
 'key_with_underscore' = 3
 }
 $expected = '{"key with space":1,"key-with-dash":2,"key_with_underscore":3}'
 $jsonPipeline = $hash | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $hash -Compress
 $jsonPipeline | Should -BeExactly $expected
 $jsonInputObject | Should -BeExactly $expected
 }
It 'Should serialize hashtable with unicode keys correctly via Pipeline and InputObject' {
 $hash = @{ "`u{65E5}`u{672C}`u{8A9E}" = 'Japanese' }
 $expected = "{`"`u{65E5}`u{672C}`u{8A9E}`":`"Japanese`"}"
 $jsonPipeline = $hash | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $hash -Compress
 $jsonPipeline | Should -BeExactly $expected
 $jsonInputObject | Should -BeExactly $expected
 }
It 'Should serialize hashtable with empty string key correctly via Pipeline and InputObject' {
 $hash = @{ '' = 'empty key' }
 $jsonPipeline = $hash | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $hash -Compress
 $jsonPipeline | Should -BeExactly '{"":"empty key"}'
 $jsonInputObject | Should -BeExactly '{"":"empty key"}'
 }
 }
Context 'Dictionary with complex values' {
 It 'Should serialize hashtable with DateTime value correctly via Pipeline and InputObject' {
 $hash = @{ date = [DateTime]::new(2024, 6, 15, 10, 30, 0, [DateTimeKind]::Utc) }
 $jsonPipeline = $hash | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $hash -Compress
 $jsonPipeline | Should -BeExactly '{"date":"2024-06-15T10:30:00Z"}'
 $jsonInputObject | Should -BeExactly '{"date":"2024-06-15T10:30:00Z"}'
 }
It 'Should serialize hashtable with Guid value correctly via Pipeline and InputObject' {
 $hash = @{ guid = [Guid]'12345678-1234-1234-1234-123456789abc' }
 $jsonPipeline = $hash | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $hash -Compress
 $jsonPipeline | Should -BeExactly '{"guid":"12345678-1234-1234-1234-123456789abc"}'
 $jsonInputObject | Should -BeExactly '{"guid":"12345678-1234-1234-1234-123456789abc"}'
 }
It 'Should serialize hashtable with enum value correctly via Pipeline and InputObject' {
 $hash = @{ day = [DayOfWeek]::Monday }
 $jsonPipeline = $hash | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $hash -Compress
 $jsonPipeline | Should -BeExactly '{"day":1}'
 $jsonInputObject | Should -BeExactly '{"day":1}'
 }
It 'Should serialize hashtable with enum as string correctly via Pipeline and InputObject' {
 $hash = @{ day = [DayOfWeek]::Monday }
 $jsonPipeline = $hash | ConvertTo-Json -Compress -EnumsAsStrings
 $jsonInputObject = ConvertTo-Json -InputObject $hash -Compress -EnumsAsStrings
 $jsonPipeline | Should -BeExactly '{"day":"Monday"}'
 $jsonInputObject | Should -BeExactly '{"day":"Monday"}'
 }
It 'Should serialize hashtable with PSCustomObject value correctly via Pipeline and InputObject' {
 $hash = @{ obj = [PSCustomObject]@{ prop = 'value' } }
 $jsonPipeline = $hash | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $hash -Compress
 $jsonPipeline | Should -BeExactly '{"obj":{"prop":"value"}}'
 $jsonInputObject | Should -BeExactly '{"obj":{"prop":"value"}}'
 }
 }
Context 'Dictionary ETS properties' {
 It 'Should include ETS properties on hashtable via Pipeline and InputObject' {
 $hash = @{ a = 1 }
 $hash = Add-Member -InputObject $hash -MemberType NoteProperty -Name ETSProp -Value 'ets' -PassThru
 $jsonPipeline = $hash | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $hash -Compress
 $jsonPipeline | Should -BeExactly '{"a":1,"ETSProp":"ets"}'
 $jsonInputObject | Should -BeExactly '{"a":1,"ETSProp":"ets"}'
 }
It 'Should include ETS properties on OrderedDictionary via Pipeline and InputObject' {
 $ordered = [ordered]@{ a = 1 }
 $ordered = Add-Member -InputObject $ordered -MemberType NoteProperty -Name ETSProp -Value 'ets' -PassThru
 $jsonPipeline = $ordered | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $ordered -Compress
 $jsonPipeline | Should -BeExactly '{"a":1,"ETSProp":"ets"}'
 $jsonInputObject | Should -BeExactly '{"a":1,"ETSProp":"ets"}'
 }
 }
Context 'Generic Dictionary types' {
 It 'Should serialize Generic Dictionary correctly via Pipeline and InputObject' {
 $dict = [System.Collections.Generic.Dictionary[string,int]]::new()
 $dict['one'] = 1
 $dict['two'] = 2
 $jsonPipeline = $dict | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $dict -Compress
 $jsonPipeline | Should -Match '"one":1'
 $jsonPipeline | Should -Match '"two":2'
 $jsonInputObject | Should -Match '"one":1'
 $jsonInputObject | Should -Match '"two":2'
 }
It 'Should serialize SortedDictionary correctly via Pipeline and InputObject' {
 $dict = [System.Collections.Generic.SortedDictionary[string,int]]::new()
 $dict['b'] = 2
 $dict['a'] = 1
 $dict['c'] = 3
 $jsonPipeline = $dict | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $dict -Compress
 $jsonPipeline | Should -BeExactly '{"a":1,"b":2,"c":3}'
 $jsonInputObject | Should -BeExactly '{"a":1,"b":2,"c":3}'
 }
 }
#endregion Comprehensive Array and Dictionary Tests (Phase 2)
#region Comprehensive PSCustomObject Tests (Phase 3)
 # Test coverage for ConvertTo-Json PSCustomObject serialization
 # Covers: Pipeline vs InputObject, ETS vs no ETS, nested structures
Context 'PSCustomObject basic serialization' {
 It 'Should serialize PSCustomObject with single property via Pipeline and InputObject' {
 $obj = [PSCustomObject]@{ Name = 'Test' }
 $jsonPipeline = $obj | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $obj -Compress
 $jsonPipeline | Should -BeExactly '{"Name":"Test"}'
 $jsonInputObject | Should -BeExactly '{"Name":"Test"}'
 }
It 'Should serialize PSCustomObject with multiple properties via Pipeline and InputObject' {
 $obj = [PSCustomObject][ordered]@{
 Name = 'Test'
 Value = 42
 Active = $true
 }
 $expected = '{"Name":"Test","Value":42,"Active":true}'
 $jsonPipeline = $obj | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $obj -Compress
 $jsonPipeline | Should -BeExactly $expected
 $jsonInputObject | Should -BeExactly $expected
 }
It 'Should preserve property order in PSCustomObject via Pipeline and InputObject' {
 $obj = [PSCustomObject][ordered]@{
 Zebra = 1
 Alpha = 2
 Middle = 3
 }
 $expected = '{"Zebra":1,"Alpha":2,"Middle":3}'
 $jsonPipeline = $obj | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $obj -Compress
 $jsonPipeline | Should -BeExactly $expected
 $jsonInputObject | Should -BeExactly $expected
 }
It 'Should serialize PSCustomObject with null property via Pipeline and InputObject' {
 $obj = [PSCustomObject]@{ NullProp = $null }
 $jsonPipeline = $obj | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $obj -Compress
 $jsonPipeline | Should -BeExactly '{"NullProp":null}'
 $jsonInputObject | Should -BeExactly '{"NullProp":null}'
 }
 }
Context 'PSCustomObject with various property types' {
 It 'Should serialize PSCustomObject with scalar properties via Pipeline and InputObject' {
 $obj = [PSCustomObject][ordered]@{
 IntVal = 42
 DoubleVal = 3.14
 StringVal = 'hello'
 BoolVal = $true
 }
 $expected = '{"IntVal":42,"DoubleVal":3.14,"StringVal":"hello","BoolVal":true}'
 $jsonPipeline = $obj | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $obj -Compress
 $jsonPipeline | Should -BeExactly $expected
 $jsonInputObject | Should -BeExactly $expected
 }
It 'Should serialize PSCustomObject with DateTime property via Pipeline and InputObject' {
 $obj = [PSCustomObject]@{
 Date = [DateTime]::new(2024, 6, 15, 10, 30, 0, [DateTimeKind]::Utc)
 }
 $expected = '{"Date":"2024-06-15T10:30:00Z"}'
 $jsonPipeline = $obj | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $obj -Compress
 $jsonPipeline | Should -BeExactly $expected
 $jsonInputObject | Should -BeExactly $expected
 }
It 'Should serialize PSCustomObject with Guid property via Pipeline and InputObject' {
 $obj = [PSCustomObject]@{
 Id = [Guid]'12345678-1234-1234-1234-123456789abc'
 }
 $expected = '{"Id":"12345678-1234-1234-1234-123456789abc"}'
 $jsonPipeline = $obj | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $obj -Compress
 $jsonPipeline | Should -BeExactly $expected
 $jsonInputObject | Should -BeExactly $expected
 }
It 'Should serialize PSCustomObject with enum property via Pipeline and InputObject' {
 $obj = [PSCustomObject]@{ Day = [DayOfWeek]::Monday }
 $jsonPipeline = $obj | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $obj -Compress
 $jsonPipeline | Should -BeExactly '{"Day":1}'
 $jsonInputObject | Should -BeExactly '{"Day":1}'
 }
It 'Should serialize PSCustomObject with enum as string via Pipeline and InputObject' {
 $obj = [PSCustomObject]@{ Day = [DayOfWeek]::Monday }
 $jsonPipeline = $obj | ConvertTo-Json -Compress -EnumsAsStrings
 $jsonInputObject = ConvertTo-Json -InputObject $obj -Compress -EnumsAsStrings
 $jsonPipeline | Should -BeExactly '{"Day":"Monday"}'
 $jsonInputObject | Should -BeExactly '{"Day":"Monday"}'
 }
It 'Should serialize PSCustomObject with array property via Pipeline and InputObject' {
 $obj = [PSCustomObject]@{ Numbers = @(1, 2, 3) }
 $expected = '{"Numbers":[1,2,3]}'
 $jsonPipeline = $obj | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $obj -Compress
 $jsonPipeline | Should -BeExactly $expected
 $jsonInputObject | Should -BeExactly $expected
 }
It 'Should serialize PSCustomObject with hashtable property via Pipeline and InputObject' {
 $obj = [PSCustomObject]@{ Config = @{ Key = 'Value' } }
 $expected = '{"Config":{"Key":"Value"}}'
 $jsonPipeline = $obj | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $obj -Compress
 $jsonPipeline | Should -BeExactly $expected
 $jsonInputObject | Should -BeExactly $expected
 }
 }
Context 'Nested PSCustomObject' {
 It 'Should serialize nested PSCustomObject via Pipeline and InputObject' {
 $obj = [PSCustomObject]@{
 Outer = [PSCustomObject]@{
 Inner = 'value'
 }
 }
 $expected = '{"Outer":{"Inner":"value"}}'
 $jsonPipeline = $obj | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $obj -Compress
 $jsonPipeline | Should -BeExactly $expected
 $jsonInputObject | Should -BeExactly $expected
 }
It 'Should serialize deeply nested PSCustomObject via Pipeline and InputObject' {
 $obj = [PSCustomObject]@{
 Level1 = [PSCustomObject]@{
 Level2 = [PSCustomObject]@{
 Level3 = 'deep'
 }
 }
 }
 $expected = '{"Level1":{"Level2":{"Level3":"deep"}}}'
 $jsonPipeline = $obj | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $obj -Compress
 $jsonPipeline | Should -BeExactly $expected
 $jsonInputObject | Should -BeExactly $expected
 }
It 'Should serialize nested PSCustomObject with Depth limit via Pipeline and InputObject' {
 $obj = [PSCustomObject]@{
 Level1 = [PSCustomObject]@{
 Level2 = [PSCustomObject]@{
 Level3 = 'deep'
 }
 }
 }
 $expected = '{"Level1":{"Level2":"@{Level3=deep}"}}'
 $jsonPipeline = $obj | ConvertTo-Json -Compress -Depth 1
 $jsonInputObject = ConvertTo-Json -InputObject $obj -Compress -Depth 1
 $jsonPipeline | Should -BeExactly $expected
 $jsonInputObject | Should -BeExactly $expected
 }
It 'Should serialize PSCustomObject with mixed nested types via Pipeline and InputObject' {
 $obj = [PSCustomObject][ordered]@{
 Child = [PSCustomObject]@{ Name = 'child' }
 Items = @(1, 2, 3)
 Config = @{ Key = 'Value' }
 }
 $expected = '{"Child":{"Name":"child"},"Items":[1,2,3],"Config":{"Key":"Value"}}'
 $jsonPipeline = $obj | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $obj -Compress
 $jsonPipeline | Should -BeExactly $expected
 $jsonInputObject | Should -BeExactly $expected
 }
 }
Context 'PSCustomObject ETS properties' {
 It 'Should include NoteProperty on PSCustomObject via Pipeline and InputObject' {
 $obj = [PSCustomObject]@{ Original = 'value' }
 $obj | Add-Member -MemberType NoteProperty -Name Added -Value 'added'
 $expected = '{"Original":"value","Added":"added"}'
 $jsonPipeline = $obj | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $obj -Compress
 $jsonPipeline | Should -BeExactly $expected
 $jsonInputObject | Should -BeExactly $expected
 }
It 'Should include ScriptProperty on PSCustomObject via Pipeline and InputObject' {
 $obj = [PSCustomObject]@{ Value = 10 }
 $obj | Add-Member -MemberType ScriptProperty -Name Doubled -Value { $this.Value * 2 }
 $expected = '{"Value":10,"Doubled":20}'
 $jsonPipeline = $obj | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $obj -Compress
 $jsonPipeline | Should -BeExactly $expected
 $jsonInputObject | Should -BeExactly $expected
 }
It 'Should include multiple ETS properties on PSCustomObject via Pipeline and InputObject' {
 $obj = [PSCustomObject]@{ Base = 'base' }
 $obj | Add-Member -MemberType NoteProperty -Name Note1 -Value 'note1'
 $obj | Add-Member -MemberType NoteProperty -Name Note2 -Value 'note2'
 $expected = '{"Base":"base","Note1":"note1","Note2":"note2"}'
 $jsonPipeline = $obj | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $obj -Compress
 $jsonPipeline | Should -BeExactly $expected
 $jsonInputObject | Should -BeExactly $expected
 }
 }
Context 'Array of PSCustomObject' {
 It 'Should serialize array of PSCustomObject via Pipeline and InputObject' {
 $arr = @(
 [PSCustomObject][ordered]@{ Id = 1; Name = 'First' }
 [PSCustomObject][ordered]@{ Id = 2; Name = 'Second' }
 )
 $expected = '[{"Id":1,"Name":"First"},{"Id":2,"Name":"Second"}]'
 $jsonPipeline = $arr | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $arr -Compress
 $jsonPipeline | Should -BeExactly $expected
 $jsonInputObject | Should -BeExactly $expected
 }
It 'Should serialize single PSCustomObject without array wrapper via Pipeline and InputObject' {
 $obj = [PSCustomObject]@{ Id = 1 }
 $jsonPipeline = $obj | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $obj -Compress
 $jsonPipeline | Should -BeExactly '{"Id":1}'
 $jsonInputObject | Should -BeExactly '{"Id":1}'
 }
It 'Should serialize single PSCustomObject with -AsArray via Pipeline and InputObject' {
 $obj = [PSCustomObject]@{ Id = 1 }
 $jsonPipeline = $obj | ConvertTo-Json -Compress -AsArray
 $jsonInputObject = ConvertTo-Json -InputObject $obj -Compress -AsArray
 $jsonPipeline | Should -BeExactly '[{"Id":1}]'
 $jsonInputObject | Should -BeExactly '[{"Id":1}]'
 }
 }
#endregion Comprehensive PSCustomObject Tests (Phase 3)
#region Comprehensive Depth Truncation and Multilevel Composition Tests (Phase 4)
 # Test coverage for ConvertTo-Json depth truncation and complex nested structures
 # Covers: -Depth parameter behavior, multilevel type compositions
Context 'Depth parameter basic behavior' {
 It 'Should use default depth of 2 via Pipeline and InputObject' {
 $obj = [PSCustomObject]@{
 L0 = [PSCustomObject]@{
 L1 = [PSCustomObject]@{
 L2 = [PSCustomObject]@{
 L3 = 'deep'
 }
 }
 }
 }
 $expected = '{"L0":{"L1":{"L2":"@{L3=deep}"}}}'
 $jsonPipeline = $obj | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $obj -Compress
 $jsonPipeline | Should -BeExactly $expected
 $jsonInputObject | Should -BeExactly $expected
 }
It 'Should truncate at Depth 0 via Pipeline and InputObject' {
 $obj = [PSCustomObject]@{
 L0 = [PSCustomObject]@{ L1 = 1 }
 }
 $expected = '{"L0":"@{L1=1}"}'
 $jsonPipeline = $obj | ConvertTo-Json -Compress -Depth 0
 $jsonInputObject = ConvertTo-Json -InputObject $obj -Compress -Depth 0
 $jsonPipeline | Should -BeExactly $expected
 $jsonInputObject | Should -BeExactly $expected
 }
It 'Should truncate at Depth 1 via Pipeline and InputObject' {
 $obj = [PSCustomObject]@{
 L0 = [PSCustomObject]@{
 L1 = [PSCustomObject]@{
 L2 = 'deep'
 }
 }
 }
 $expected = '{"L0":{"L1":"@{L2=deep}"}}'
 $jsonPipeline = $obj | ConvertTo-Json -Compress -Depth 1
 $jsonInputObject = ConvertTo-Json -InputObject $obj -Compress -Depth 1
 $jsonPipeline | Should -BeExactly $expected
 $jsonInputObject | Should -BeExactly $expected
 }
It 'Should serialize fully with sufficient Depth via Pipeline and InputObject' {
 $obj = [PSCustomObject]@{
 L0 = [PSCustomObject]@{
 L1 = [PSCustomObject]@{
 L2 = [PSCustomObject]@{
 L3 = 'very deep'
 }
 }
 }
 }
 $expected = '{"L0":{"L1":{"L2":{"L3":"very deep"}}}}'
 $jsonPipeline = $obj | ConvertTo-Json -Compress -Depth 10
 $jsonInputObject = ConvertTo-Json -InputObject $obj -Compress -Depth 10
 $jsonPipeline | Should -BeExactly $expected
 $jsonInputObject | Should -BeExactly $expected
 }
It 'Should handle Depth 100 for deeply nested structures via Pipeline and InputObject' {
 $obj = [PSCustomObject]@{ L0 = [PSCustomObject]@{ L1 = [PSCustomObject]@{ L2 = [PSCustomObject]@{ L3 = [PSCustomObject]@{ L4 = 'deep' } } } } }
 $expected = '{"L0":{"L1":{"L2":{"L3":{"L4":"deep"}}}}}'
 $jsonPipeline = $obj | ConvertTo-Json -Compress -Depth 100
 $jsonInputObject = ConvertTo-Json -InputObject $obj -Compress -Depth 100
 $jsonPipeline | Should -BeExactly $expected
 $jsonInputObject | Should -BeExactly $expected
 }
It 'Should throw on Depth 101 exceeding maximum via Pipeline and InputObject' {
 { [PSCustomObject]@{ L0 = 1 } | ConvertTo-Json -Depth 101 } | Should -Throw -ErrorId 'ParameterArgumentValidationError,Microsoft.PowerShell.Commands.ConvertToJsonCommand'
 { ConvertTo-Json -InputObject ([PSCustomObject]@{ L0 = 1 }) -Depth 101 } | Should -Throw -ErrorId 'ParameterArgumentValidationError,Microsoft.PowerShell.Commands.ConvertToJsonCommand'
 }
 }
Context 'Depth truncation with arrays' {
 It 'Should truncate nested array at Depth limit via Pipeline and InputObject' {
 $obj = [PSCustomObject]@{
 Arr = ,(,(1, 2, 3))
 }
 $expected = '{"Arr":["System.Object[]"]}'
 $jsonPipeline = $obj | ConvertTo-Json -Compress -Depth 1
 $jsonInputObject = ConvertTo-Json -InputObject $obj -Compress -Depth 1
 $jsonPipeline | Should -BeExactly $expected
 $jsonInputObject | Should -BeExactly $expected
 }
It 'Should serialize nested array fully with sufficient Depth via Pipeline and InputObject' {
 $obj = [PSCustomObject]@{
 Arr = ,(,(1, 2, 3))
 }
 $expected = '{"Arr":[[[1,2,3]]]}'
 $jsonPipeline = $obj | ConvertTo-Json -Compress -Depth 10
 $jsonInputObject = ConvertTo-Json -InputObject $obj -Compress -Depth 10
 $jsonPipeline | Should -BeExactly $expected
 $jsonInputObject | Should -BeExactly $expected
 }
It 'Should truncate array of objects at Depth limit via Pipeline and InputObject' {
 $arr = @(
 [PSCustomObject]@{ Inner = [PSCustomObject]@{ Value = 1 } }
 )
 $expected = '[{"Inner":"@{Value=1}"}]'
 $jsonPipeline = ,$arr | ConvertTo-Json -Compress -Depth 1
 $jsonInputObject = ConvertTo-Json -InputObject $arr -Compress -Depth 1
 $jsonPipeline | Should -BeExactly $expected
 $jsonInputObject | Should -BeExactly $expected
 }
 }
Context 'Depth truncation with hashtables' {
 It 'Should truncate nested hashtable at Depth limit via Pipeline and InputObject' {
 $hash = @{
 L0 = @{
 L1 = @{
 L2 = 'deep'
 }
 }
 }
 $expected = '{"L0":{"L1":"System.Collections.Hashtable"}}'
 $jsonPipeline = $hash | ConvertTo-Json -Compress -Depth 1
 $jsonInputObject = ConvertTo-Json -InputObject $hash -Compress -Depth 1
 $jsonPipeline | Should -BeExactly $expected
 $jsonInputObject | Should -BeExactly $expected
 }
It 'Should serialize nested hashtable fully with sufficient Depth via Pipeline and InputObject' {
 $hash = @{
 L0 = @{
 L1 = @{
 L2 = 'deep'
 }
 }
 }
 $expected = '{"L0":{"L1":{"L2":"deep"}}}'
 $jsonPipeline = $hash | ConvertTo-Json -Compress -Depth 10
 $jsonInputObject = ConvertTo-Json -InputObject $hash -Compress -Depth 10
 $jsonPipeline | Should -BeExactly $expected
 $jsonInputObject | Should -BeExactly $expected
 }
 }
Context 'Depth truncation string representation' {
 It 'Should convert PSCustomObject to @{...} string when truncated via Pipeline and InputObject' {
 $obj = [PSCustomObject]@{
 Child = [PSCustomObject]@{ A = 1; B = 2 }
 }
 $expected = '{"Child":"@{A=1; B=2}"}'
 $jsonPipeline = $obj | ConvertTo-Json -Compress -Depth 0
 $jsonInputObject = ConvertTo-Json -InputObject $obj -Compress -Depth 0
 $jsonPipeline | Should -BeExactly $expected
 $jsonInputObject | Should -BeExactly $expected
 }
It 'Should convert Hashtable to type name when truncated via Pipeline and InputObject' {
 $obj = [PSCustomObject]@{
 Child = @{ Key = 'Value' }
 }
 $expected = '{"Child":"System.Collections.Hashtable"}'
 $jsonPipeline = $obj | ConvertTo-Json -Compress -Depth 0
 $jsonInputObject = ConvertTo-Json -InputObject $obj -Compress -Depth 0
 $jsonPipeline | Should -BeExactly $expected
 $jsonInputObject | Should -BeExactly $expected
 }
It 'Should convert Array to space-separated string when truncated via Pipeline and InputObject' {
 $obj = [PSCustomObject]@{
 Child = @(1, 2, 3)
 }
 $expected = '{"Child":"1 2 3"}'
 $jsonPipeline = $obj | ConvertTo-Json -Compress -Depth 0
 $jsonInputObject = ConvertTo-Json -InputObject $obj -Compress -Depth 0
 $jsonPipeline | Should -BeExactly $expected
 $jsonInputObject | Should -BeExactly $expected
 }
 }
Context 'Multilevel composition: Array containing Dictionary' {
 It 'Should serialize array of hashtables correctly via Pipeline and InputObject' {
 $arr = @(@{ a = 1 }, @{ b = 2 }, @{ c = 3 })
 $expected = '[{"a":1},{"b":2},{"c":3}]'
 $jsonPipeline = $arr | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $arr -Compress
 $jsonPipeline | Should -BeExactly $expected
 $jsonInputObject | Should -BeExactly $expected
 }
It 'Should serialize array of ordered dictionaries correctly via Pipeline and InputObject' {
 $arr = @(
 [ordered]@{ x = 1; y = 2 },
 [ordered]@{ x = 3; y = 4 }
 )
 $expected = '[{"x":1,"y":2},{"x":3,"y":4}]'
 $jsonPipeline = ,$arr | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $arr -Compress
 $jsonPipeline | Should -BeExactly $expected
 $jsonInputObject | Should -BeExactly $expected
 }
It 'Should serialize nested array of hashtables correctly via Pipeline and InputObject' {
 $arr = @(
 @{
 Items = @(
 @{ Value = 1 },
 @{ Value = 2 }
 )
 }
 )
 $expected = '[{"Items":[{"Value":1},{"Value":2}]}]'
 $jsonPipeline = ,$arr | ConvertTo-Json -Compress -Depth 3
 $jsonInputObject = ConvertTo-Json -InputObject $arr -Compress -Depth 3
 $jsonPipeline | Should -BeExactly $expected
 $jsonInputObject | Should -BeExactly $expected
 }
 }
Context 'Multilevel composition: Dictionary containing Array' {
 It 'Should serialize dictionary with array values correctly via Pipeline and InputObject' {
 $hash = [ordered]@{
 numbers = @(1, 2, 3)
 strings = @('a', 'b', 'c')
 }
 $expected = '{"numbers":[1,2,3],"strings":["a","b","c"]}'
 $jsonPipeline = $hash | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $hash -Compress
 $jsonPipeline | Should -BeExactly $expected
 $jsonInputObject | Should -BeExactly $expected
 }
It 'Should serialize dictionary with nested array values correctly via Pipeline and InputObject' {
 $hash = @{
 matrix = @(@(1, 2), @(3, 4))
 }
 $expected = '{"matrix":[[1,2],[3,4]]}'
 $jsonPipeline = $hash | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $hash -Compress
 $jsonPipeline | Should -BeExactly $expected
 $jsonInputObject | Should -BeExactly $expected
 }
It 'Should serialize dictionary with empty array value correctly via Pipeline and InputObject' {
 $hash = @{ empty = @() }
 $expected = '{"empty":[]}'
 $jsonPipeline = $hash | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $hash -Compress
 $jsonPipeline | Should -BeExactly $expected
 $jsonInputObject | Should -BeExactly $expected
 }
It 'Should serialize dictionary with array of dictionaries correctly via Pipeline and InputObject' {
 $hash = @{
 Items = @(
 @{ X = 1 },
 @{ X = 2 }
 )
 }
 $expected = '{"Items":[{"X":1},{"X":2}]}'
 $jsonPipeline = $hash | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $hash -Compress
 $jsonPipeline | Should -BeExactly $expected
 $jsonInputObject | Should -BeExactly $expected
 }
 }
Context 'Multilevel composition: PSCustomObject with mixed types' {
 It 'Should serialize PSCustomObject with array and hashtable properties via Pipeline and InputObject' {
 $obj = [PSCustomObject]@{
 List = @(1, 2, 3)
 Config = @{ Key = 'Value' }
 Name = 'Test'
 }
 $expected = '{"List":[1,2,3],"Config":{"Key":"Value"},"Name":"Test"}'
 $jsonPipeline = $obj | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $obj -Compress
 $jsonPipeline | Should -BeExactly $expected
 $jsonInputObject | Should -BeExactly $expected
 }
It 'Should serialize PSCustomObject with nested PSCustomObject and array via Pipeline and InputObject' {
 $obj = [PSCustomObject]@{
 Child = [PSCustomObject]@{
 Items = @(1, 2, 3)
 }
 }
 $expected = '{"Child":{"Items":[1,2,3]}}'
 $jsonPipeline = $obj | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $obj -Compress
 $jsonPipeline | Should -BeExactly $expected
 $jsonInputObject | Should -BeExactly $expected
 }
It 'Should serialize array of PSCustomObject with mixed properties via Pipeline and InputObject' {
 $arr = @(
 [PSCustomObject]@{ Type = 'A'; Data = @(1, 2) },
 [PSCustomObject]@{ Type = 'B'; Data = @{ Key = 'Val' } }
 )
 $expected = '[{"Type":"A","Data":[1,2]},{"Type":"B","Data":{"Key":"Val"}}]'
 $jsonPipeline = $arr | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $arr -Compress
 $jsonPipeline | Should -BeExactly $expected
 $jsonInputObject | Should -BeExactly $expected
 }
 }
Context 'Multilevel composition: PowerShell class in complex structures' {
 BeforeAll {
 class ItemClass {
 [int]$Id
 [string]$Name
 }
class ContainerClass {
 [string]$Type
 [ItemClass]$Item
 }
 }
It 'Should serialize array of PowerShell class correctly via Pipeline and InputObject' {
 $arr = @(
 [ItemClass]@{ Id = 1; Name = 'First' },
 [ItemClass]@{ Id = 2; Name = 'Second' }
 )
 $expected = '[{"Id":1,"Name":"First"},{"Id":2,"Name":"Second"}]'
 $jsonPipeline = $arr | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $arr -Compress
 $jsonPipeline | Should -BeExactly $expected
 $jsonInputObject | Should -BeExactly $expected
 }
It 'Should serialize hashtable containing PowerShell class correctly via Pipeline and InputObject' {
 $item = [ItemClass]@{ Id = 1; Name = 'Test' }
 $hash = @{ Item = $item }
 $expected = '{"Item":{"Id":1,"Name":"Test"}}'
 $jsonPipeline = $hash | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $hash -Compress
 $jsonPipeline | Should -BeExactly $expected
 $jsonInputObject | Should -BeExactly $expected
 }
It 'Should serialize nested PowerShell classes correctly via Pipeline and InputObject' {
 $item = [ItemClass]@{ Id = 1; Name = 'Inner' }
 $container = [ContainerClass]@{ Type = 'Outer'; Item = $item }
 $expected = '{"Type":"Outer","Item":{"Id":1,"Name":"Inner"}}'
 $jsonPipeline = $container | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $container -Compress
 $jsonPipeline | Should -BeExactly $expected
 $jsonInputObject | Should -BeExactly $expected
 }
It 'Should serialize PSCustomObject containing PowerShell class correctly via Pipeline and InputObject' {
 $item = [ItemClass]@{ Id = 1; Name = 'Test' }
 $obj = [PSCustomObject]@{
 Label = 'Container'
 Content = $item
 }
 $expected = '{"Label":"Container","Content":{"Id":1,"Name":"Test"}}'
 $jsonPipeline = $obj | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $obj -Compress
 $jsonPipeline | Should -BeExactly $expected
 $jsonInputObject | Should -BeExactly $expected
 }
It 'Should truncate nested PowerShell class at Depth limit via Pipeline and InputObject' {
 $item = [ItemClass]@{ Id = 1; Name = 'Test' }
 $container = [ContainerClass]@{ Type = 'Outer'; Item = $item }
 $itemString = $item.ToString()
 $expected = "{`"Type`":`"Outer`",`"Item`":`"$itemString`"}"
 $jsonPipeline = $container | ConvertTo-Json -Compress -Depth 0
 $jsonInputObject = ConvertTo-Json -InputObject $container -Compress -Depth 0
 $jsonPipeline | Should -BeExactly $expected
 $jsonInputObject | Should -BeExactly $expected
 }
 }
Context 'Complex multilevel compositions' {
 It 'Should serialize 3-level mixed composition correctly via Pipeline and InputObject' {
 $obj = [PSCustomObject]@{
 Users = @(
 [PSCustomObject]@{
 Name = 'Alice'
 Roles = @('Admin', 'User')
 },
 [PSCustomObject]@{
 Name = 'Bob'
 Roles = @('User')
 }
 )
 }
 $expected = '{"Users":[{"Name":"Alice","Roles":["Admin","User"]},{"Name":"Bob","Roles":["User"]}]}'
 $jsonPipeline = $obj | ConvertTo-Json -Compress -Depth 3
 $jsonInputObject = ConvertTo-Json -InputObject $obj -Compress -Depth 3
 $jsonPipeline | Should -BeExactly $expected
 $jsonInputObject | Should -BeExactly $expected
 }
It 'Should serialize dictionary with nested mixed types correctly via Pipeline and InputObject' {
 $hash = [ordered]@{
 Meta = [PSCustomObject]@{ Version = '1.0' }
 Data = @(
 ([ordered]@{ Key = 'A'; Values = @(1, 2) }),
 ([ordered]@{ Key = 'B'; Values = @(3, 4) })
 )
 }
 $expected = '{"Meta":{"Version":"1.0"},"Data":[{"Key":"A","Values":[1,2]},{"Key":"B","Values":[3,4]}]}'
 $jsonPipeline = $hash | ConvertTo-Json -Compress -Depth 3
 $jsonInputObject = ConvertTo-Json -InputObject $hash -Compress -Depth 3
 $jsonPipeline | Should -BeExactly $expected
 $jsonInputObject | Should -BeExactly $expected
 }
It 'Should handle deeply nested mixed types with sufficient Depth via Pipeline and InputObject' {
 $obj = [PSCustomObject]@{
 L0 = @{
 L1 = [PSCustomObject]@{
 L2 = @(
 [PSCustomObject]@{ L3 = 'deep' }
 )
 }
 }
 }
 $expected = '{"L0":{"L1":{"L2":[{"L3":"deep"}]}}}'
 $jsonPipeline = $obj | ConvertTo-Json -Compress -Depth 10
 $jsonInputObject = ConvertTo-Json -InputObject $obj -Compress -Depth 10
 $jsonPipeline | Should -BeExactly $expected
 $jsonInputObject | Should -BeExactly $expected
 }
It 'Should truncate deeply nested mixed types at Depth limit via Pipeline and InputObject' {
 $obj = [PSCustomObject]@{
 L0 = @{
 L1 = [PSCustomObject]@{
 L2 = @(
 [PSCustomObject]@{ L3 = 'deep' }
 )
 }
 }
 }
 $expected = '{"L0":{"L1":{"L2":""}}}'
 $jsonPipeline = $obj | ConvertTo-Json -Compress -Depth 2
 $jsonInputObject = ConvertTo-Json -InputObject $obj -Compress -Depth 2
 $jsonPipeline | Should -BeExactly $expected
 $jsonInputObject | Should -BeExactly $expected
 }
 }
#endregion Comprehensive Depth Truncation and Multilevel Composition Tests (Phase 4)
#region Comprehensive PowerShell Class Tests (Phase 5)
 # Test coverage for ConvertTo-Json PowerShell class serialization
 # Covers: Pipeline vs InputObject, ETS vs no ETS, nested structures, inheritance
Context 'PowerShell class serialization' {
 BeforeAll {
 class SimpleClass {
 [string]$StringVal
 [int]$IntVal
 [bool]$BoolVal
 [double]$DoubleVal
 [bigint]$BigIntVal
 [guid]$GuidVal
 [ipaddress]$IPVal
 [object[]]$ArrayVal
 [System.Collections.Specialized.OrderedDictionary]$DictVal
 hidden [string]$HiddenVal
 }
 }
It 'Should serialize PowerShell class with various property types including ETS via Pipeline and InputObject' {
 $obj = [SimpleClass]::new()
 $obj.StringVal = 'hello'
 $obj.IntVal = 42
 $obj.BoolVal = $true
 $obj.DoubleVal = 3.14
 $obj.BigIntVal = [bigint]::Parse('99999999999999999999')
 $obj.GuidVal = [guid]'12345678-1234-1234-1234-123456789abc'
 $obj.IPVal = [ipaddress]::Parse('192.168.1.1')
 $obj.ArrayVal = @(1, 'two', $true)
 $obj.DictVal = [ordered]@{ Key = 'Value'; Nested = [ordered]@{ Inner = 1 } }
 $obj.HiddenVal = 'secret'
 $obj | Add-Member -MemberType NoteProperty -Name ETSNote -Value 'note'
 $obj | Add-Member -MemberType ScriptProperty -Name ETSScript -Value { $this.StringVal.Length }
 $obj.IPVal | Add-Member -MemberType NoteProperty -Name Label -Value 'primary'
 $expectedPipeline = '{"StringVal":"hello","IntVal":42,"BoolVal":true,"DoubleVal":3.14,"BigIntVal":99999999999999999999,"GuidVal":"12345678-1234-1234-1234-123456789abc","IPVal":{"AddressFamily":2,"ScopeId":null,"IsIPv6Multicast":false,"IsIPv6LinkLocal":false,"IsIPv6SiteLocal":false,"IsIPv6Teredo":false,"IsIPv6UniqueLocal":false,"IsIPv4MappedToIPv6":false,"Address":16885952},"ArrayVal":[1,"two",true],"DictVal":{"Key":"Value","Nested":{"Inner":1}},"HiddenVal":"secret","ETSNote":"note","ETSScript":5}'
 $expectedInputObject = '{"StringVal":"hello","IntVal":42,"BoolVal":true,"DoubleVal":3.14,"BigIntVal":99999999999999999999,"GuidVal":"12345678-1234-1234-1234-123456789abc","IPVal":{"AddressFamily":2,"ScopeId":null,"IsIPv6Multicast":false,"IsIPv6LinkLocal":false,"IsIPv6SiteLocal":false,"IsIPv6Teredo":false,"IsIPv6UniqueLocal":false,"IsIPv4MappedToIPv6":false,"Address":16885952},"ArrayVal":[1,"two",true],"DictVal":{"Key":"Value","Nested":{"Inner":1}},"HiddenVal":"secret"}'
 $jsonPipeline = $obj | ConvertTo-Json -Compress -Depth 3
 $jsonInputObject = ConvertTo-Json -InputObject $obj -Compress -Depth 3
 $jsonPipeline | Should -BeExactly $expectedPipeline
 $jsonInputObject | Should -BeExactly $expectedInputObject
 }
It 'Should serialize PowerShell class with default values via Pipeline and InputObject' {
 $obj = [SimpleClass]::new()
 $expected = '{"StringVal":null,"IntVal":0,"BoolVal":false,"DoubleVal":0.0,"BigIntVal":0,"GuidVal":"00000000-0000-0000-0000-000000000000","IPVal":null,"ArrayVal":null,"DictVal":null,"HiddenVal":null}'
 $jsonPipeline = $obj | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $obj -Compress
 $jsonPipeline | Should -BeExactly $expected
 $jsonInputObject | Should -BeExactly $expected
 }
 }
Context 'Nested PowerShell class' {
 BeforeAll {
 class InnerClass {
 [string]$Inner
 }
class OuterClass {
 [string]$Outer
 [InnerClass]$Child
 }
class DeepClass {
 [string]$Name
 [OuterClass]$Nested
 }
 }
It 'Should serialize deeply nested PowerShell class via Pipeline and InputObject' {
 $inner = [InnerClass]@{ Inner = 'deep' }
 $outer = [OuterClass]@{ Outer = 'middle'; Child = $inner }
 $deep = [DeepClass]@{ Name = 'top'; Nested = $outer }
 $expected = '{"Name":"top","Nested":{"Outer":"middle","Child":{"Inner":"deep"}}}'
 $jsonPipeline = $deep | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $deep -Compress
 $jsonPipeline | Should -BeExactly $expected
 $jsonInputObject | Should -BeExactly $expected
 }
It 'Should serialize nested PowerShell class with null child via Pipeline and InputObject' {
 $outer = [OuterClass]@{ Outer = 'outer value'; Child = $null }
 $expected = '{"Outer":"outer value","Child":null}'
 $jsonPipeline = $outer | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $outer -Compress
 $jsonPipeline | Should -BeExactly $expected
 $jsonInputObject | Should -BeExactly $expected
 }
 }
Context 'PowerShell class inheritance' {
 BeforeAll {
 class BaseClass {
 [string]$BaseProp
 }
class ChildClass : BaseClass {
 [string]$ChildProp
 }
class GrandChildClass : ChildClass {
 [string]$GrandChildProp
 }
 }
It 'Should serialize derived class with base properties via Pipeline and InputObject' {
 $obj = [ChildClass]@{ BaseProp = 'base'; ChildProp = 'child' }
 $expected = '{"ChildProp":"child","BaseProp":"base"}'
 $jsonPipeline = $obj | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $obj -Compress
 $jsonPipeline | Should -BeExactly $expected
 $jsonInputObject | Should -BeExactly $expected
 }
It 'Should serialize multi-level inherited class via Pipeline and InputObject' {
 $obj = [GrandChildClass]@{
 BaseProp = 'base'
 ChildProp = 'child'
 GrandChildProp = 'grandchild'
 }
 $expected = '{"GrandChildProp":"grandchild","ChildProp":"child","BaseProp":"base"}'
 $jsonPipeline = $obj | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $obj -Compress
 $jsonPipeline | Should -BeExactly $expected
 $jsonInputObject | Should -BeExactly $expected
 }
}
Context 'Mixed PSCustomObject and PowerShell class' {
 BeforeAll {
 class MixedClass {
 [string]$ClassName
 }
 }
It 'Should serialize array with mixed types via Pipeline and InputObject' {
 $classObj = [MixedClass]@{ ClassName = 'class' }
 $customObj = [PSCustomObject]@{ CustomName = 'custom' }
 $arr = @($classObj, $customObj)
 $expected = '[{"ClassName":"class"},{"CustomName":"custom"}]'
 $jsonPipeline = $arr | ConvertTo-Json -Compress
 $jsonInputObject = ConvertTo-Json -InputObject $arr -Compress
 $jsonPipeline | Should -BeExactly $expected
 $jsonInputObject | Should -BeExactly $expected
 }
 }
#endregion Comprehensive PowerShell Class Tests (Phase 5)
}