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Merge pull request #807 from PowerShell/GetVariablePesterUnitTest

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Add Get-Variable Pester Unit Test
This commit is contained in:
Andy Schwartzmeyer 2016-04-13 11:11:08 -07:00
commit f38a11fc02
1 changed files with 194 additions and 140 deletions
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334
test/powershell/Get-Variable.Tests.ps1
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@ -1,140 +1,194 @@
Describe "Get-Variable" {
It "Should be able to call with no parameters without error" {
{ Get-Variable } | Should Not Throw
}
It "Should return environment variables when called with no parameters" {
(Get-Variable).Name -contains "$" | Should Be $true
(Get-Variable).Name -contains "?" | Should Be $true
(Get-Variable).Name -contains "HOST" | Should Be $true
(Get-Variable).Name -contains "PWD" | Should Be $true
(Get-Variable).Name -contains "PID" | Should Be $true
(Get-Variable).Name -contains "^" | Should Be $true
}
It "Should return the value of an object" {
New-Variable -Name tempVar -Value 1
(Get-Variable tempVar).Value | Should Be (1)
}
It "Should be able to call using the gv alias" {
{ gv } | Should Not Throw
}
It "Should be able to call using the Name switch" {
New-Variable -Name var1 -Value 4
{ Get-Variable -Name var1 } | Should Not Throw
(Get-Variable -Name var1).Value | Should Be 4
Remove-Variable var1
}
It "Should be able to use wildcard characters in the Name field" {
New-Variable -Name var1 -Value 4
New-Variable -Name var2 -Value "test"
(Get-Variable -Name var*).Value[0] | Should be 4
(Get-Variable -Name var*).Value[1] | Should be "test"
Remove-Variable var1
Remove-Variable var2
}
It "Should return only the value if the value switch is used" {
New-Variable -Name var1 -Value 4
Get-Variable -Name var1 -ValueOnly | Should be 4
Remove-Variable var1
}
It "Should pipe string to the name field without the Name field being specified"{
New-Variable -Name var1 -Value 3
("var1" | Get-Variable ).Value | Should Be 3
Remove-Variable var1
}
It "Should be able to include a set of variables to get" {
New-Variable -Name var1 -Value 4
New-Variable -Name var2 -Value 2
$actual = Get-Variable -Include var1, var2
$actual[0].Name | Should Be var1
$actual[1].Name | Should Be var2
$actual[0].Value | Should Be 4
$actual[1].Value | Should Be 2
Remove-Variable var1
Remove-Variable var2
}
It "Should be able to exclude a set of variables to get" {
New-Variable -Name var1 -Value 4
New-Variable -Name var2 -Value 2
New-Variable -Name var3 -Value "test"
$actual = Get-Variable -Exclude var1, var2
$actual | Where-Object { $_.Name -eq "var3" } | Should Not BeNullOrEmpty
}
Context "Scope Tests" {
# This will violate the DRY principle. Tread softly.
It "Should be able to get a global scope variable using the global switch" {
New-Variable globalVar -Value 1 -Scope global -Force
(Get-Variable -Name globalVar -Scope global)[0].Value | Should Be 1
}
It "Should not be able to clear a global scope variable using the local switch" {
New-Variable globalVar -Value 1 -Scope global -Force
Get-Variable -Name globalVar -Scope local -ErrorAction SilentlyContinue | Should Throw
}
It "Should be able to get a global variable when there's one in the script scope" {
New-Variable globalVar -Value 1 -Scope global -Force
{ New-Variable globalVar -Value 2 -Scope script -Force }
$(Get-Variable -Name globalVar).Value | Should Be 1
}
It "Should be able to get an item locally using the local switch" {
{
New-Variable localVar -Value 1 -Scope local -Force
Get-Variable -Name localVar -Scope local
} | Should Not Throw
}
It "Should be able to get a variable created in the global scope when there's one in local scope" {
New-Variable localVar -Value 1 -Scope local -Force
New-Variable localVar -Value 2 -Scope global -Force
$(Get-Variable -Name localVar -Scope global).Value | Should Be 2
}
It "Should be able to get a script variable created using the script switch" {
{
New-Variable scriptVar -Value 1 -Scope script -Force
Get-Variable -Name scriptVar -Scope script
} | Should Not Throw
}
It "Should be able to clear a global script variable that was created using the script scope switch" {
{
New-Variable scriptVar -Value 1 -Scope script -Force
Get-Variable -Name scriptVar -Scope script
} | Should Not Throw
}
}
}
Describe "Get-Variable DRT Unit Tests" -Tags DRT{
It "Get-Variable of not existing variable Name should throw ItemNotFoundException"{
try {
Get-Variable -EA Stop -Name nonexistingVariableName
Throw "Execution OK"
}
catch {
$_.FullyQualifiedErrorId | Should be "VariableNotFound,Microsoft.PowerShell.Commands.GetVariableCommand"
}
}
It "Get-Variable of existing variable Name with include and bogus exclude should work"{
Set-Variable newVar testing
$var1=get-variable -Name newVar -Include newVar -Exclude bogus
$var1.Name|Should Be "newVar"
$var1.Value|Should Be "testing"
}
It "Get-Variable of existing variable Name with Description and Option should work"{
Set-Variable newVar testing -Option ReadOnly -Description "testing description"
$var1=get-variable -Name newVar
$var1.Name|Should Be "newVar"
$var1.Value|Should Be "testing"
$var1.Options|Should Be "ReadOnly"
$var1.Description|Should Be "testing description"
}
It "Get-Variable of existing variable Globbing Name should work"{
Set-Variable abcaVar testing
Set-Variable bcdaVar "another test"
Set-Variable aVarfoo wow
$var1=get-variable -Name *aVar* -Scope local
$var1.Count | Should be 3
$var1[0].Name|Should Be "abcaVar"
$var1[0].Value|Should Be "testing"
$var1[1].Name|Should Be "aVarfoo"
$var1[1].Value|Should Be "wow"
$var1[2].Name|Should Be "bcdaVar"
$var1[2].Value|Should Be "another test"
}
It "Get-Variable of existing private variable Name should throw ItemNotFoundException skip now as bug#818" -Skip:$true{
try {
Set-Variable newVar testing -Option Private
&{Get-Variable -Name newVar}
Throw "Execution OK"
}
catch {
$_.FullyQualifiedErrorId | Should be "VariableNotFound,Microsoft.PowerShell.Commands.GetVariableCommand"
}
}
}
Describe "Get-Variable" {
It "Should be able to call with no parameters without error" {
{ Get-Variable } | Should Not Throw
}
It "Should return environment variables when called with no parameters" {
(Get-Variable).Name -contains "$" | Should Be $true
(Get-Variable).Name -contains "?" | Should Be $true
(Get-Variable).Name -contains "HOST" | Should Be $true
(Get-Variable).Name -contains "PWD" | Should Be $true
(Get-Variable).Name -contains "PID" | Should Be $true
(Get-Variable).Name -contains "^" | Should Be $true
}
It "Should return the value of an object" {
New-Variable -Name tempVar -Value 1
(Get-Variable tempVar).Value | Should Be (1)
}
It "Should be able to call using the gv alias" {
(get-alias gv).Definition | Should be "Get-Variable"
}
It "Should be able to call using the Name switch" {
New-Variable -Name var1 -Value 4
{ Get-Variable -Name var1 } | Should Not Throw
(Get-Variable -Name var1).Value | Should Be 4
Remove-Variable var1
}
It "Should be able to use wildcard characters in the Name field" {
New-Variable -Name var1 -Value 4
New-Variable -Name var2 -Value "test"
(Get-Variable -Name var*).Value[0] | Should be 4
(Get-Variable -Name var*).Value[1] | Should be "test"
Remove-Variable var1
Remove-Variable var2
}
It "Should return only the value if the value switch is used" {
New-Variable -Name var1 -Value 4
Get-Variable -Name var1 -ValueOnly | Should be 4
Remove-Variable var1
}
It "Should pipe string to the name field without the Name field being specified"{
New-Variable -Name var1 -Value 3
("var1" | Get-Variable ).Value | Should Be 3
Remove-Variable var1
}
It "Should be able to include a set of variables to get" {
New-Variable -Name var1 -Value 4
New-Variable -Name var2 -Value 2
$actual = Get-Variable -Include var1, var2
$actual[0].Name | Should Be var1
$actual[1].Name | Should Be var2
$actual[0].Value | Should Be 4
$actual[1].Value | Should Be 2
Remove-Variable var1
Remove-Variable var2
}
It "Should be able to exclude a set of variables to get" {
New-Variable -Name var1 -Value 4
New-Variable -Name var2 -Value 2
New-Variable -Name var3 -Value "test"
$actual = Get-Variable -Exclude var1, var2
$actual.Name -contains "var3" | Should Be $true
}
Context "Scope Tests" {
# This will violate the DRY principle. Tread softly.
It "Should be able to get a global scope variable using the global switch" {
New-Variable globalVar -Value 1 -Scope global -Force
(Get-Variable -Name globalVar -Scope global).Value | Should Be 1
}
It "Should not be able to clear a global scope variable using the local switch" {
New-Variable globalVar -Value 1 -Scope global -Force
Get-Variable -Name globalVar -Scope local -ErrorAction SilentlyContinue | Should Throw
}
It "Should be able to get a global variable when there's one in the script scope" {
New-Variable globalVar -Value 1 -Scope global -Force
{ New-Variable globalVar -Value 2 -Scope script -Force}
(Get-Variable -Name globalVar).Value | Should Be 1
}
It "Should be able to get an item locally using the local switch" {
{
New-Variable localVar -Value 1 -Scope local -Force
Get-Variable -Name localVar -Scope local
} | Should Not Throw
}
It "Should be able to get a variable created in the global scope when there's one in local scope" {
New-Variable localVar -Value 1 -Scope local -Force
New-Variable localVar -Value 2 -Scope global -Force
(Get-Variable -Name localVar -Scope global).Value | Should Be 2
}
It "Should be able to get a script variable created using the script switch" {
{
New-Variable scriptVar -Value 1 -Scope script -Force
Get-Variable -Name scriptVar -Scope script
} | Should Not Throw
}
It "Should be able to clear a global script variable that was created using the script scope switch" {
{
New-Variable scriptVar -Value 1 -Scope script -Force
Get-Variable -Name scriptVar -Scope script
} | Should Not Throw
}
}
}