PowerShell/test/powershell/Group-Object.Tests.ps1
2016-03-04 14:52:27 -08:00

88 lines
2.7 KiB
PowerShell

Describe "Group-Object" {
$testObject = Get-ChildItem
It "Should be called using an object as piped without error with no switches" {
{$testObject | Group-Object } | Should Not Throw
}
It "Should be called using the InputObject without error with no other switches" {
{ Group-Object -InputObject $testObject } | Should Not Throw
}
It "Should return three columns- count, name, and group" {
$actual = Group-Object -InputObject $testObject
$actual.Count | Should BeGreaterThan 0
$actual.Name.Count | Should BeGreaterThan 0
$actual.Group.Count | Should BeGreaterThan 0
}
It "Should use the group alias" {
{ group -InputObject $testObject } | Should Not Throw
}
It "Should create a collection when the inputObject parameter is used" {
$actualParam = Group-Object -InputObject $testObject
$actualParam.Group.GetType().Name | Should Be "Collection``1"
}
It "Should output an array when piped input is used" {
$actual = $testObject | Group-Object
$actual.Group.GetType().BaseType | Should Be Array
}
It "Should have the same output between the group alias and the group-object cmdlet" {
$actualAlias = group -InputObject $testObject
$actualCmdlet = Group-Object -InputObject $testObject
$actualAlias.Name[0] | Should Be $actualCmdlet.Name[0]
$actualAlias.Group[0] | Should Be $actualCmdlet.Group[0]
}
It "Should be able to use the property switch without error" {
{ $testObject | Group-Object -Property Attributes } | Should Not Throw
$actual = $testObject | Group-Object -Property Attributes
$actual.Group.Count | Should BeGreaterThan 0
}
It "Should be able to use the property switch on multiple properties without error" {
{ $testObject | Group-Object -Property Attributes, Length }
$actual = $testObject | Group-Object -Property Attributes, Length
$actual.Group.Count | Should BeGreaterThan 0
}
It "Should be able to omit members of a group using the NoElement switch without error" {
{ $testObject | Group-Object -NoElement } | Should Not Throw
($testObject | Group-Object -NoElement).Group | Should BeNullOrEmpty
}
It "Should be able to output a hashtable datatype" {
$actual = $testObject | Group-Object -AsHashTable
$actual.GetType().Name | Should be "Hashtable"
}
It "Should be able to access when output as hash table" {
$actual = $testObject | Group-Object -AsHashTable
$actual.Keys | Should Not BeNullOrEmpty
}
It "Should throw when attempting to use AsString without AsHashTable" {
{ $testObject | Group-Object -AsString } | Should Throw
}
It "Should not throw error when using AsString when the AsHashTable was added" {
{ $testObject | Group-Object -AsHashTable -AsString } | Should Not Throw
}
}