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# Licensed under the MIT License.
Describe 'Tests for OrderedHashtable' -Tag 'CI' {
It 'Can create an empty OrderedHashtable' {
$oh =[System.Management.Automation.OrderedHashtable]::new()
$oh.Count | Should -Be 0
$oh.GetType().Name | Should -BeExactly 'OrderedHashtable'
}
It 'Can create an empty OrderedHashtable with a capacity' {
$oh = [System.Management.Automation.OrderedHashtable]::new(10)
$oh.Count | Should -Be 0
$oh.GetType().Name | Should -BeExactly 'OrderedHashtable'
}
It 'Can create an OrderedHashtable with an initial dictionary' {
$h = @{ a = 1; b = 2 }
$oh = [System.Management.Automation.OrderedHashtable]::new($h)
$oh.Count | Should -Be 2
$oh['a'] | Should -Be $h['a']
$oh['b'] | Should -Be $h['b']
}
It 'Can use the Add() method' {
$oh = [System.Management.Automation.OrderedHashtable]::new()
$oh.Add('a', 1)
$oh.Add('b', 2)
$oh.Count | Should -Be 2
$oh['a'] | Should -Be 1
$oh['b'] | Should -Be 2
}
It 'Can use the Clear() method' {
$h = @{ a = 1; b = 2 }
$oh = [System.Management.Automation.OrderedHashtable]::new($h)
$oh.Count | Should -Be 2
$oh.Clear()
$oh.Count | Should -Be 0
}
It 'Can use the Clone() method' {
$h = @{ a = 1; b = 2 }
$oh = [System.Management.Automation.OrderedHashtable]::new($h)
$oh2 = $oh.Clone()
$oh2.Count | Should -Be 2
$oh2['a'] | Should -Be $h['a']
$oh2['b'] | Should -Be $h['b']
}
It 'Can use the Contains() method' {
$h = @{ a = 1; b = 2 }
$oh = [System.Management.Automation.OrderedHashtable]::new($h)
$oh.Contains('a') | Should -BeTrue
$oh.Contains('b') | Should -BeTrue
$oh.Contains('c') | Should -BeFalse
}
It 'Can use the ContainsKey() method' {
$h = @{ a = 1; b = 2 }
$oh = [System.Management.Automation.OrderedHashtable]::new($h)
$oh.ContainsKey('a') | Should -BeTrue
$oh.ContainsKey('b') | Should -BeTrue
$oh.ContainsKey('c') | Should -BeFalse
}
It 'Can use the ContainsValue() method' {
$h = @{ a = 1; b = 2 }
$oh = [System.Management.Automation.OrderedHashtable]::new($h)
$oh.ContainsValue(1) | Should -BeTrue
$oh.ContainsValue(2) | Should -BeTrue
$oh.ContainsValue(3) | Should -BeFalse
}
It 'Can use the CopyTo() method' {
$oh = [System.Management.Automation.OrderedHashtable]::new()
$oh.Add('a', 1)
$oh.Add('b', 2)
$oh.Add('c', 3)
$a = (4, 5, 6, 7)
$oh.CopyTo($a, 1)
$a[0] | Should -Be 4
# OrderedDictionary.CopyTo() doesn't guarantee to preserve order
# so we can't easily test the values
$a[1].GetType().Name | Should -BeExactly 'DictionaryEntry'
$a[2].GetType().Name | Should -BeExactly 'DictionaryEntry'
$a[3].GetType().Name | Should -BeExactly 'DictionaryEntry'
}
It 'Can use the Equals() method' {
$h = @{ a = 1; b = 2 }
$oh = [System.Management.Automation.OrderedHashtable]::new($h)
$oh2 = $oh.Clone()
$oh3 = $oh
$oh.Equals($oh2) | Should -BeFalse
$oh.Equals($oh3) | Should -BeTrue
}
It 'Can use the GetEnumerator() method' {
$h = @{ a = 1; b = 2 }
$oh = [System.Management.Automation.OrderedHashtable]::new($h)
$oh.GetEnumerator().GetType().Name | Should -BeExactly 'OrderedDictionaryEnumerator'
}
It 'Can use the GetHashCode() method' {
$h = @{ a = 1; b = 2 }
$oh = [System.Management.Automation.OrderedHashtable]::new($h)
$oh.GetHashCode() | Should -BeGreaterThan 0
$oh2 = $oh.Clone()
$oh.GetHashCode() | Should -Not -Be $oh2.GetHashCode()
$oh3 = $oh
$oh.GetHashCode() | Should -Be $oh3.GetHashCode()
}
It 'Can use Remove() method' {
$h = @{ a = 1; b = 2 }
$oh = [System.Management.Automation.OrderedHashtable]::new($h)
$oh.Remove('a')
$oh.Count | Should -Be 1
$oh.Contains('a') | Should -BeFalse
}
It 'Can use Item property' {
$h = @{ a = 1; b = 2 }
$oh = [System.Management.Automation.OrderedHashtable]::new($h)
$oh['a'] | Should -Be 1
$oh['b'] | Should -Be 2
}
It 'Can use IsFixedSize property' {
$h = @{ a = 1; b = 2 }
$oh = [System.Management.Automation.OrderedHashtable]::new($h)
$oh.IsFixedSize | Should -BeFalse
}
It 'Can use IsReadOnly property' {
$h = @{ a = 1; b = 2 }
$oh = [System.Management.Automation.OrderedHashtable]::new($h)
$oh.IsReadOnly | Should -BeFalse
}
It 'Can use IsSynchronized property' {
$h = @{ a = 1; b = 2 }
$oh = [System.Management.Automation.OrderedHashtable]::new($h)
$oh.IsSynchronized | Should -BeFalse
}
It 'Can use Keys property' {
$oh = [System.Management.Automation.OrderedHashtable]::new()
$oh['a'] = 1
$oh['b'] = 2
$oh.Keys | Should -Be ('a', 'b')
}
It 'Can use Values property' {
$oh = [System.Management.Automation.OrderedHashtable]::new()
$oh['a'] = 1
$oh['b'] = 2
$oh.Values | Should -Be (1, 2)
}
}
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