Describe "Test-Push-Location" {
    New-Variable -Name startDirectory -Value $(Get-Location).Path -Scope Global -Force

    BeforeEach { cd $startDirectory }

    It "Should be called without error" {
        { Push-Location } | Should Not Throw
    }

    It "Should be able to push to the root directory" {
        # this works cross-platform
        { Push-Location / } | Should Not Throw
    }

    It "Should be able to use relative path to parent" {
        { Push-Location .. } | Should Not Throw
    }

    It "Should be able to use relative path to grandparent" {
        Test-Path ../.. | Should Be $true

        { Push-Location ../.. } | Should Not Throw
    }

    It "Should be able to push twice" {
        { Push-Location .. } | Should Not Throw
        { Push-Location .. } | Should Not Throw
    }

    It "Should be able to take a piped variable" {
        { ".." | Push-Location } | Should Not Throw
    }

    It "Should be able to call the pushd alias" {
        { pushd } | Should Not Throw
    }

    It "Should be able to push to the same location between the alias and the cmdlet" {
        pushd ..
        $aliasDirectory = $(Get-Location).Path

        cd $startDirectory
        Push-Location ..
        $cmdletDirectory = $(Get-Location).Path

        $aliasDirectory | Should Be $cmdletDirectory
    }

    It "Should produce a pathinfo object when the passthru parameter is used" {
        Push-Location .. -PassThru | ForEach-Object { $_.GetType().Name | Should Be PathInfo }
    }

    # final cleanup
    cd $startDirectory
}