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8c763fb | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 | # Copyright (c) Microsoft Corporation.
# Licensed under the MIT License.
#
# Run the new parser, return either errors or the ast
#
function Get-ParseResults
{
[CmdletBinding()]
param(
[Parameter(ValueFromPipeline=$true,Mandatory=$true)]
[string]$src,
[switch]$Ast
)
$errors = $null
$result = [System.Management.Automation.Language.Parser]::ParseInput($src, [ref]$null, [ref]$errors)
if ($Ast) { $result } else { ,$errors }
}
#
# Run script and return errors
#
function Get-RuntimeError
{
[CmdletBinding()]
param(
[Parameter(ValueFromPipeline=$true,Mandatory=$true)][string]$src
)
$errors = $null
try
{
[scriptblock]::Create($src).Invoke() > $null
}
catch
{
return $_.Exception.InnerException.ErrorRecord
}
}
function position_message
{
param($position)
if ($position.Line.Length -lt $position.ColumnNumber)
{
$position.Line + " <<<<"
}
else
{
$position.Line.Insert($position.ColumnNumber, " <<<<")
}
}
#
# Pester friendly version of Test-Error
#
function ShouldBeParseError
{
[CmdletBinding()]
param(
[string]$src,
[string[]]$expectedErrors,
[int[]]$expectedOffsets,
# This is a temporary solution after moving type creation from parse time to runtime
[switch]$SkipAndCheckRuntimeError,
# for test coverarage purpose, tests validate columnNumber or offset
[switch]$CheckColumnNumber
)
Context "Parse error expected: <<$src>>" {
# Test case error if this fails
$expectedErrors.Count | Should -Be $expectedOffsets.Count
if ($SkipAndCheckRuntimeError)
{
It "error should happen at parse time, not at runtime" -Skip {}
$errors = Get-RuntimeError -Src $src
# for runtime errors we will only get the first one
$expectedErrors = ,$expectedErrors[0]
$expectedOffsets = ,$expectedOffsets[0]
}
else
{
$errors = Get-ParseResults -Src $src
}
It "Error count" { $errors.Count | Should -Be $expectedErrors.Count }
for ($i = 0; $i -lt $errors.Count; ++$i)
{
$err = $errors[$i]
if ($SkipAndCheckRuntimeError)
{
$errorId = $err.FullyQualifiedErrorId
}
else
{
$errorId = $err.ErrorId
}
It "Error Id (iteration:$i)" { $errorId | Should -Be $expectedErrors[$i] }
$acutalPostion = $err.Extent.StartScriptPosition.Offset
if ( $CheckColumnNumber ) { $acutalPostion = $err.Extent.StartScriptPosition.ColumnNumber }
It "Error position (iteration:$i)" -Pending:$SkipAndCheckRuntimeError { $acutalPostion | Should -Be $expectedOffsets[$i] }
}
}
}
function Flatten-Ast
{
[CmdletBinding()]
param([System.Management.Automation.Language.Ast] $ast)
$ast
$ast | gm -type property | Where-Object { ($prop = $_.Name) -ne 'Parent' } | ForEach-Object {
$ast.$prop | Where-Object { $_ -is [System.Management.Automation.Language.Ast] } | ForEach-Object { Flatten-Ast $_ }
}
}
function Test-ErrorStmt
{
param([string]$src, [string]$errorStmtExtent)
$a = $args
Context "Error Statement expected: <<$src>>" {
$ast = Get-ParseResults $src -Ast
$asts = @(Flatten-Ast $ast.EndBlock.Statements[0])
It 'Type is ErrorStatementAst' { $asts[0] | Should BeOfType System.Management.Automation.Language.ErrorStatementAst }
It "`$asts.count" { $asts.Count | Should -Be ($a.Count + 1) }
It "`$asts[0].Extent.Text" { $asts[0].Extent.Text | Should -Be $errorStmtExtent }
for ($i = 0; $i -lt $a.Count; ++$i)
{
It "`$asts[$($i + 1)].Extent.Text" { $asts[$i + 1].Extent.Text | Should -Be $a[$i] }
}
}
}
function Test-Ast
{
param([string]$src)
$a = $args
$ast = Get-ParseResults $src -Ast
$asts = @(Flatten-Ast $ast)
Context "Ast Validation: <<$src>>" {
It "`$asts.count" { $asts.Count | Should -Be $a.Count }
for ($i = 0; $i -lt $a.Count; ++$i)
{
It "`$asts[$i].Extent.Text" { $asts[$i].Extent.Text | Should -Be $a[$i] }
}
}
}
## ErrorStatement is special for SwitchStatement
function Test-ErrorStmtForSwitchFlag
{
param([string]$src, [string]$flagName)
$a = $args
$ast = Get-ParseResults $src -Ast
$ast = $ast.EndBlock.Statements[0]
Context "Ast Validation: <<$src>>" {
$ast | Should BeOfType System.Management.Automation.Language.ErrorStatementAst
$ast.Flags.ContainsKey($flagName) | Should -BeTrue
$asts = @(Flatten-Ast $ast.Flags[$flagName].Item2)
$asts.Count | Should -Be $a.Count
for ($i = 0; $i -lt $a.Count; ++$i)
{
$asts[$i].Extent.Text | Should -Be $a[$i]
}
}
}
Export-ModuleMember -Function Test-ErrorStmt, Test-Ast, ShouldBeParseError, Get-ParseResults, Get-RuntimeError, Test-ErrorStmtForSwitchFlag
|