117 lines
3.6 KiB
PowerShell
117 lines
3.6 KiB
PowerShell
. (Join-Path -Path $PSScriptRoot -ChildPath Test-Mocks.ps1)
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Describe "Select-Object" {
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BeforeEach {
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$dirObject = GetFileMock
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$TestLength = 3
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}
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It "Handle piped input without error" {
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{ $dirObject | Select-Object } | Should Not Throw
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}
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It "Should treat input as a single object with the inputObject parameter" {
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$result = $(Select-Object -inputObject $dirObject -last $TestLength).Length
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$expected = $dirObject.Length
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$result | Should Be $expected
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}
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It "Should be able to use the alias" {
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{ $dirObject | select } | Should Not Throw
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}
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It "Should have same result when using alias" {
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$result = $dirObject | select
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$expected = $dirObject | Select-Object
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$result | Should Be $expected
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}
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It "Should return correct object with First parameter" {
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$result = $dirObject | Select-Object -First $TestLength
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$result.Length | Should Be $TestLength
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for ($i=0; $i -lt $TestLength; $i++)
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{
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$result[$i].Name | Should Be $dirObject[$i].Name
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}
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}
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It "Should return correct object with Last parameter" {
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$result = $dirObject | Select-Object -Last $TestLength
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$result.Length | Should Be $TestLength
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for ($i=0; $i -lt $TestLength; $i++)
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{
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$result[$i].Name | Should Be $dirObject[$dirObject.Length - $TestLength + $i].Name
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}
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}
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It "Should work correctly with Unique parameter" {
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$result = ("a","b","c","a","a","a" | Select-Object -Unique).Length
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$expected = 3
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$result | Should Be $expected
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}
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It "Should return correct object with Skip parameter" {
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$result = $dirObject | Select-Object -Skip $TestLength
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$result.Length | Should Be ($dirObject.Length - $TestLength)
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for ($i=0; $i -lt $TestLength; $i++)
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{
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$result[$i].Name | Should Be $dirObject[$TestLength + $i].Name
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}
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}
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It "Should return an object with selected columns" {
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$result = $dirObject | Select-Object -Property Name, Size
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$result.Length | Should Be $dirObject.Length
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$result[0].Name | Should Be $dirObject[0].Name
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$result[0].Size | Should Be $dirObject[0].Size
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$result[0].Mode | Should BeNullOrEmpty
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}
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It "Should send output to pipe properly" {
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{$dirObject | Select-Object -Unique | pipelineConsume} | Should Not Throw
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}
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It "Should select array indices with Index parameter" {
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$firstIndex = 2
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$secondIndex = 4
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$result = $dirObject | Select-Object -Index $firstIndex, $secondIndex
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$result[0].Name | Should Be $dirObject[$firstIndex].Name
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$result[1].Name | Should Be $dirObject[$secondIndex].Name
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}
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# Note that these two tests will modify original values of $dirObject
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It "Should not wait when used without -Wait option" {
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$orig1 = $dirObject[0].Size
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$orig2 = $dirObject[$TestLength].Size
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$result = $dirObject | addOneToSizeProperty | Select-Object -First $TestLength
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$result[0].Size | Should Be ($orig1 + 1)
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$dirObject[0].Size | Should Be ($orig1 + 1)
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$dirObject[$TestLength].Size | Should Be $orig2
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}
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It "Should wait when used with -Wait option" {
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$orig1 = $dirObject[0].Size
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$orig2 = $dirObject[$TestLength].Size
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$result = $dirObject | addOneToSizeProperty | Select-Object -First $TestLength -Wait
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$result[0].Size | Should Be ($orig1 + 1)
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$dirObject[0].Size | Should Be ($orig1 + 1)
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$dirObject[$TestLength].Size | Should Be ($orig2 + 1)
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}
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}
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