Add Clear-Variable Pester Unit Test
This commit is contained in:
JumpingYang001
Andrew Schwartzmeyer
parent
80b6b7e809
commit
23aebe7945
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@ -1,163 +1,268 @@
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Describe "Clear-Variable" {
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BeforeEach {
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$var1 = 3
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}
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It "Should be able to clear a variable using the Name switch" {
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Clear-Variable -Name var1
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$var1 | Should BeNullOrEmpty
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{ Get-Variable var1 } | Should Not Throw
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}
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It "Should be able to clear a variable without using the Name switch" {
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Clear-Variable var1
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$var1 | Should BeNullOrEmpty
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{ Get-Variable var1 } | Should Not Throw
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}
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It "Should have a null value after clearing the variable" {
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Clear-Variable var1
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$var1 | Should BeNullOrEmpty
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}
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It "Should call without error using the clv alias" {
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{ clv -Name var1 } | Should Not Throw
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}
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It "Should be able to include a set of variables to clear" {
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$var1 = 2
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$var2 = 3
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$var3 = 4
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$variable1 = 23
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$variable2 = 4
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$variable3 = 2
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$w = 3
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Clear-Variable -Name w, vari* -Include w, vari*
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$variable1 | Should BeNullOrEmpty
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$variable2 | Should BeNullOrEmpty
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$variable3 | Should BeNullOrEmpty
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$w | Should BeNullOrEmpty
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$var1 | Should Not BeNullOrEmpty
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$var2 | Should Not BeNullOrEmpty
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$var3 | Should Not BeNullOrEmpty
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}
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It "Should be able to exclude a set of variables to clear" {
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$var1 = 2
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$var2 = 3
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$var3 = 4
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$variable1 = 23
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$variable2 = 4
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$variable3 = 2
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$w = 3
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Clear-Variable -Name w, vari* -Exclude var*
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$variable1 | Should Not BeNullOrEmpty
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$variable2 | Should Not BeNullOrEmpty
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$variable3 | Should Not BeNullOrEmpty
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$var1 | Should Not BeNullOrEmpty
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$var2 | Should Not BeNullOrEmpty
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$var3 | Should Not BeNullOrEmpty
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$w | Should BeNullOrEmpty
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}
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It "Should be able to pass the cleared object through the pipeline using the passthru switch" {
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{ Clear-Variable -Name var1 -PassThru | Format-Wide -Property Value } | Should Not Throw
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}
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It "Should not clear environment variables" {
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$env:TEMPVARIABLE = "test data"
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Clear-Variable -Name env:TEMPVARIABLE -ErrorAction SilentlyContinue | Should Throw
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}
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It "Should clear variable even if it is read-only using the Force parameter" {
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New-Variable -Name var2 -Option ReadOnly -Value 100
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Clear-Variable -Name var1
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Clear-Variable -Name var2 -Force
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$var1 | Should BeNullOrEmpty
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$var2 | Should BeNullOrEmpty
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Remove-Variable -Name var2 -Force
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}
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It "Should throw error when trying to clear variable that is read-only without using the Force parameter" {
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New-Variable -Name var2 -Option ReadOnly -Value 100
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Clear-Variable -Name var2 -ErrorAction SilentlyContinue | Should Throw
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$var2 | Should Not BeNullOrEmpty
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Remove-Variable -Name var2 -Force
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}
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Context "Scope Tests" {
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# This will violate the DRY principle. Tread softly.
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It "Should be able to clear a global scope variable using the global switch" {
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New-Variable globalVar -Value 1 -Scope global -Force
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Clear-Variable -Name globalVar -Scope global
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$globalVar | Should BeNullOrEmpty
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}
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It "Should not be able to clear a global scope variable using the local switch" {
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New-Variable globalVar -Value 1 -Scope global -Force
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Clear-Variable -Name globalVar -Scope local -ErrorAction SilentlyContinue | Should Throw
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}
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It "Should not be able to clear a global variable using the script scope switch" {
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New-Variable globalVar -Value 1 -Scope global -Force
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Clear-Variable -Name localVar -Scope script -ErrorAction SilentlyContinue | Should Throw
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}
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It "Should be able to clear an item locally using the local switch" {
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New-Variable localVar -Value 2 -Scope local -Force
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Clear-Variable -Name localVar -Scope local
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$localVar | Should BeNullOrEmpty
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Clear-Variable -Name localVar -Scope script -ErrorAction SilentlyContinue | Should Throw
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}
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It "Should not be able to clear an item locally using the global switch" {
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New-Variable localVar -Value 2 -Scope local -Force
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Clear-Variable -Name localVar -Scope global -ErrorAction SilentlyContinue | Should Throw
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}
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It "Should not be able to clear a local variable using the script scope switch" {
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New-Variable localVar -Value 2 -Scope local -Force
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Clear-Variable -Name localVar -Scope script -ErrorAction SilentlyContinue | Should Throw
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}
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It "Should be able to clear a script variable created using the script switch" {
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{
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New-Variable -Name derp2 -Value 3 -Scope script -Force
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Clear-Variable -Name derp2 -Scope script
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}| Should Not Throw
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}
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It "Should be able to clear a global script variable that was created using the script scope switch" {
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{
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New-Variable -Name derpx -Value 4 -Scope script -Force
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Clear-Variable -Name derpx -Scope script
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} | Should Not Throw
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}
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}
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}
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Describe "Clear-Variable DRT Unit Tests" -Tags DRT{
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It "Clear-Variable normal variable Name should works"{
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Set-Variable foo bar
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Clear-Variable -Name foo
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$var1=Get-Variable -Name foo
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$var1.Name|Should Be "foo"
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$var1.Value|Should Be $null
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$var1.Options|Should Be "None"
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$var1.Description|Should Be ""
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}
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It "Clear-Variable ReadOnly variable Name should throw exception and force Clear-Variable should works"{
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Set-Variable foo bar -Option ReadOnly
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try {
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Clear-Variable -Name foo -EA Stop
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Throw "Execution OK"
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}
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catch {
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$_.CategoryInfo| Should Match "SessionStateUnauthorizedAccessException"
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#Comment below because Pester has bug, it will show error for below code.
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#Error:
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#-] Clear-Variable ReadOnly variable Name should throw exception and force Clear-Variable should works 526ms
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#The term 'Sort' is not recognized as the name of a cmdlet, function, script file, or operable program. Check the spelling of the name, or if a path was included, verify that the path is correct and try again.
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#at line: 18 in /workspace/PowerShell/src/Microsoft.PowerShell.CoreConsoleHost/bin/Linux/netstandardapp1.5/ubuntu.14.04-x64/Modules/Pester/Functions/Assertions/Be.ps1
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#Code:
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#$_.FullyQualifiedErrorId | Should Be "VariableNotWritable,Microsoft.PowerShell.Commands.ClearAliasCommand"
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}
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Clear-Variable -Name foo -Force
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$var1=Get-Variable -Name foo
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$var1.Name|Should Be "foo"
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$var1.Value|Should Be $null
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$var1.Options|Should Be "ReadOnly"
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$var1.Description|Should Be ""
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}
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It "Clear-Variable normal variable Name with local scope should works"{
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Set-Variable foo bar
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&{
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Set-Variable foo baz
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Clear-Variable -Name foo -Scope "local"
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$var1=Get-Variable -Name foo -Scope "local"
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$var1.Name|Should Be "foo"
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$var1.Value|Should Be $null
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$var1.Options|Should Be "None"
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$var1.Description|Should Be ""
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}
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$var1=Get-Variable -Name foo
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$var1.Name|Should Be "foo"
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$var1.Value|Should Be "bar"
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$var1.Options|Should Be "None"
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$var1.Description|Should Be ""
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}
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It "Clear-Variable Private variable Name should works and Get-Variable with local scope should throw exception"{
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Set-Variable foo bar -Option Private
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{
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Clear-Variable -Name foo
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try {
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Get-Variable -Name foo -Scope local
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Throw "Execution OK"
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}
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catch {
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$_.CategoryInfo| Should Match "RuntimeException"
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}
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}
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$var1=Get-Variable -Name foo
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$var1.Name|Should Be "foo"
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$var1.Value|Should Be "bar"
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$var1.Options|Should Be "Private"
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$var1.Description|Should Be ""
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}
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It "Clear-Variable normal variable Name with local scope should works in different scope"{
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Set-Variable foo bar
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&{
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Set-Variable foo baz
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Clear-Variable -Name foo -Scope "local"
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$var1=Get-Variable -Name foo -Scope "local"
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$var1.Name|Should Be "foo"
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$var1.Value|Should Be $null
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$var1.Options|Should Be "None"
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$var1.Description|Should Be ""
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}
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$var1=Get-Variable -Name foo
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$var1.Name|Should Be "foo"
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$var1.Value|Should Be "bar"
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$var1.Options|Should Be "None"
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$var1.Description|Should Be ""
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$var1=Get-Variable -Name foo -Scope "local"
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$var1.Name|Should Be "foo"
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$var1.Value|Should Be "bar"
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$var1.Options|Should Be "None"
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$var1.Description|Should Be ""
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}
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}
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Describe "Clear-Variable" {
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BeforeEach {
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$var1 = 3
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}
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It "Should be able to clear a variable using the Name switch" {
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Clear-Variable -Name var1
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$var1 | Should BeNullOrEmpty
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{ Get-Variable var1 } | Should Not Throw
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}
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It "Should be able to clear a variable without using the Name switch" {
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Clear-Variable var1
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$var1 | Should BeNullOrEmpty
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{ Get-Variable var1 } | Should Not Throw
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}
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It "Should have a null value after clearing the variable" {
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Clear-Variable var1
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$var1 | Should BeNullOrEmpty
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}
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It "Should call without error using the clv alias" {
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{ clv -Name var1 } | Should Not Throw
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}
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It "Should be able to include a set of variables to clear" {
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$var1 = 2
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$var2 = 3
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$var3 = 4
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$variable1 = 23
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$variable2 = 4
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$variable3 = 2
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$w = 3
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Clear-Variable -Name w, vari* -Include w, vari*
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$variable1 | Should BeNullOrEmpty
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$variable2 | Should BeNullOrEmpty
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$variable3 | Should BeNullOrEmpty
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$w | Should BeNullOrEmpty
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$var1 | Should Not BeNullOrEmpty
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$var2 | Should Not BeNullOrEmpty
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$var3 | Should Not BeNullOrEmpty
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}
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It "Should be able to exclude a set of variables to clear" {
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$var1 = 2
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$var2 = 3
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$var3 = 4
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$variable1 = 23
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$variable2 = 4
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$variable3 = 2
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$w = 3
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Clear-Variable -Name w, vari* -Exclude var*
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$variable1 | Should Not BeNullOrEmpty
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$variable2 | Should Not BeNullOrEmpty
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$variable3 | Should Not BeNullOrEmpty
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$var1 | Should Not BeNullOrEmpty
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$var2 | Should Not BeNullOrEmpty
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$var3 | Should Not BeNullOrEmpty
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$w | Should BeNullOrEmpty
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}
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It "Should be able to pass the cleared object through the pipeline using the passthru switch" {
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{ Clear-Variable -Name var1 -PassThru | Format-Wide -Property Value } | Should Not Throw
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}
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It "Should not clear environment variables" {
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$env:TEMPVARIABLE = "test data"
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Clear-Variable -Name env:TEMPVARIABLE -ErrorAction SilentlyContinue | Should Throw
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}
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It "Should clear variable even if it is read-only using the Force parameter" {
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New-Variable -Name var2 -Option ReadOnly -Value 100
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Clear-Variable -Name var1
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Clear-Variable -Name var2 -Force
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$var1 | Should BeNullOrEmpty
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$var2 | Should BeNullOrEmpty
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Remove-Variable -Name var2 -Force
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}
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It "Should throw error when trying to clear variable that is read-only without using the Force parameter" {
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New-Variable -Name var2 -Option ReadOnly -Value 100
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Clear-Variable -Name var2 -ErrorAction SilentlyContinue | Should Throw
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$var2 | Should Not BeNullOrEmpty
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Remove-Variable -Name var2 -Force
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}
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Context "Scope Tests" {
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# This will violate the DRY principle. Tread softly.
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It "Should be able to clear a global scope variable using the global switch" {
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New-Variable globalVar -Value 1 -Scope global -Force
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Clear-Variable -Name globalVar -Scope global
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$globalVar | Should BeNullOrEmpty
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}
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It "Should not be able to clear a global scope variable using the local switch" {
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New-Variable globalVar -Value 1 -Scope global -Force
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Clear-Variable -Name globalVar -Scope local -ErrorAction SilentlyContinue | Should Throw
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}
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It "Should not be able to clear a global variable using the script scope switch" {
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New-Variable globalVar -Value 1 -Scope global -Force
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Clear-Variable -Name localVar -Scope script -ErrorAction SilentlyContinue | Should Throw
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}
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It "Should be able to clear an item locally using the local switch" {
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New-Variable localVar -Value 2 -Scope local -Force
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Clear-Variable -Name localVar -Scope local
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$localVar | Should BeNullOrEmpty
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Clear-Variable -Name localVar -Scope script -ErrorAction SilentlyContinue | Should Throw
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}
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It "Should not be able to clear an item locally using the global switch" {
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New-Variable localVar -Value 2 -Scope local -Force
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Clear-Variable -Name localVar -Scope global -ErrorAction SilentlyContinue | Should Throw
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}
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It "Should not be able to clear a local variable using the script scope switch" {
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New-Variable localVar -Value 2 -Scope local -Force
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Clear-Variable -Name localVar -Scope script -ErrorAction SilentlyContinue | Should Throw
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}
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It "Should be able to clear a script variable created using the script switch" {
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{
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New-Variable -Name derp2 -Value 3 -Scope script -Force
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Clear-Variable -Name derp2 -Scope script
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}| Should Not Throw
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}
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It "Should be able to clear a global script variable that was created using the script scope switch" {
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{
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New-Variable -Name derpx -Value 4 -Scope script -Force
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Clear-Variable -Name derpx -Scope script
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} | Should Not Throw
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}
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}
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}
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