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Added new-variable pester tests
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Zachary Folwick
@@ -0,0 +1,233 @@
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Describe "Test-New-Variable" {
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It "Should create a new variable with no parameters" {
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{ New-Variable var1 } | Should Not Throw
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}
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It "Should be able to set variable name using the Name parameter" {
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{ New-Variable -Name var1 } | Should Not Throw
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}
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It "Should be able to assign a value to a variable using the value switch" {
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New-Variable var1 -Value 4
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$var1 | Should Be 4
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}
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It "Should be able to assign a value to a new variable without using the value switch" {
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New-Variable var1 "test"
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$var1 | Should Be "test"
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}
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It "Should assign a description to a new variable using the description switch" {
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New-Variable var1 100 -Description "Test Description"
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(Get-Variable var1).Description | Should Be "Test Description"
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}
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It "Should be able to be called with the nv alias" {
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{ nv var1 } | Should Not Throw
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{ nv var1 2 } | Should Not Throw
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}
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It "Should not be able to set the name of a new variable to that of an old variable within same scope when the Force switch is missing" {
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New-Variable var1
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(New-Variable var1 -ErrorAction SilentlyContinue) | Should Throw
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}
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It "Should change the value of an already existing variable using the Force switch" {
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New-Variable var1 -Value 1
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$var1 | Should Be 1
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New-Variable var1 -Value 2 -Force
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$var1 | Should Be 2
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$var1 | Should Not Be 1
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}
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It "Should be able to set the value of a variable by piped input" {
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$input = "value"
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$input | New-Variable -Name var1
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$var1 | Should Be $input
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}
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It "Should be able to pipe object properties to output using the PassThru switch" {
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$input = Set-Variable -Name testVar -Value "test" -Description "test description" -PassThru
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$output = $input | Format-List -Property Description | Out-String
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$output | Should Be "`n`nDescription : test description`n`n`n`n"
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}
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It "Should be able to set the value using the value switch" {
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New-Variable -Name var1 -Value 2
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$var1 | Should Be 2
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}
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Context "Option tests" {
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BeforeEach {
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# verify that the test variable doesn't exist
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!!$var1 | Should Be $false
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}
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It "Should be able to use the options switch without error" {
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{ New-Variable -Name var1 -Value 2 -Option Unspecified } | Should Not Throw
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}
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It "Should default to none as the value for options" {
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New-Variable -Name var2 -Value 4 -PassThru| Format-List | Out-String | Should Match "Options : None"
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}
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It "Should be able to set ReadOnly option" {
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{ New-Variable -Name var1 -Value 2 -Option ReadOnly } | Should Not Throw
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}
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It "Should not be able to change variable created using the ReadOnly option when the Force switch is not used" {
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New-Variable -Name var1 -Value 1 -Option ReadOnly
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Set-Variable -Name var1 -Value 2 -ErrorAction SilentlyContinue
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$var1 | Should Not Be 2
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}
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It "Should be able to set a new variable to constant" {
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{ New-Variable -Name var1 -Option Constant } | Should Not Throw
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}
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It "Should not be able to change an existing variable to constant" {
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New-Variable -Name var1 -Value 1 -PassThru
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Set-Variable -Name var1 -Option Constant -ErrorAction SilentlyContinue
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$var1 | Format-List | Out-String | Should Not Match "Options : None"
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}
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It "Should not be able to delete a constant variable" {
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New-Variable -Name var1 -Value 2 -Option Constant
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Remove-Variable -Name var1 -ErrorAction SilentlyContinue
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!!$var1 | Should Be $true
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$var1 | Should Be 2
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}
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It "Should not be able to change a constant variable" {
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New-Variable -Name var1 -Value 1 -Option Constant
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Set-Variable -Name var1 -Value 2 -ErrorAction SilentlyContinue
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$var1 | Should Not Be 2
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}
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It "Should be able to create a variable as private without error" {
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{ New-Variable -Name var1 -Option Private } | Should Not Throw
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}
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It "Should be able to see the value of a private variable when within scope" {
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New-Variable -Name var1 -Value 100 -Option Private
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$var1 | Should Be 100
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}
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It "Should not be able to see the value of a private variable when out of scope" {
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{
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New-Variable -Name var1 -Value 1 -Option Private
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}
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$var1 | Should Be # Nothing, since it's not defined in scope
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}
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It "Should be able to use the AllScope switch without error" {
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{ New-Variable -Name var1 -Option AllScope } | Should Not Throw
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}
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It "Should be able to see variable created using the AllScope switch in a child scope" {
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New-Variable -Name var1 -Value 1 -Option AllScope
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function myFunction {
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if ( $var1 -eq 1 ) {
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$var1 = 2
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}
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}
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myFunction
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$var1 | Should Be 2
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}
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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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# We use the -Force switch here because we are testing global variable creation
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It "Should be able to get a global scope variable using the global switch" {
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New-Variable globalVar -Value 1 -Scope global -Force
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(Get-Variable -Name globalVar -Scope global)[0].Value | Should Be 1
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}
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It "Should not be able to set a global scope variable using the local switch" {
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Set-Variable globalVar -Value 1 -Scope global -Force
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Get-Variable -Name globalVar -Scope local -ErrorAction SilentlyContinue | Should Throw
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}
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It "Should be able to set a global variable using the script scope switch" {
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{
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Set-Variable globalVar -Value 1 -Scope global -Force
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Get-Variable -Name globalVar -Scope script
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} | Should Not Throw
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}
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It "Should be able to get an item locally using the local switch" {
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{
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Set-Variable globalVar -Value 1 -Scope local -Force
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Get-Variable -Name globalVar -Scope local
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} | Should Not Throw
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}
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It "Should be able to get an item locally using the global switch" {
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{
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Set-Variable globalVar -Value 1 -Scope local -Force
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Get-Variable -Name globalVar -Scope global
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} | Should Not Throw
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}
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It "Should not be able to get a local variable using the script scope switch" {
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{
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Set-Variable globalVar -Value 1 -Scope local -Force
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Get-Variable -Name globalVar -Scope script
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} | Should Not Throw
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}
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It "Should be able to get a script variable created using the script switch" {
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{
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Set-Variable globalVar -Value 1 -Scope script -Force
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Get-Variable -Name globalVar -Scope script
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} | Should Not Throw
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}
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It "Should be able to set a global script variable that was created using the script scope switch" {
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{
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Set-Variable globalVar -Value 1 -Scope script -Force
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Get-Variable -Name globalVar -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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