Sampler

0.109.7-preview0001

Templates/Sampler/Get-Something.tests.ps1

$ProjectPath = "$PSScriptRoot\..\..\.." | Convert-Path
$ProjectName = ((Get-ChildItem -Path $ProjectPath\*\*.psd1).Where{
        ($_.Directory.Name -match 'source|src' -or $_.Directory.Name -eq $_.BaseName) -and
        $(try { Test-ModuleManifest $_.FullName -ErrorAction Stop } catch { $false } )
    }).BaseName

Import-Module $ProjectName

InModuleScope $ProjectName {
    Describe Get-Something {
        Mock Get-PrivateFunction { $PrivateData }

        Context 'Return values' {
            BeforeEach {
                $return = Get-Something -Data 'value'
            }

            It 'Returns a single object' {
                ($return | Measure-Object).Count | Should -Be 1
            }

            It 'Returns a string from Get-PrivateFunction' {
                Assert-MockCalled Get-PrivateFunction -Times 1 -Exactly -Scope It
                $return | Should -Be 'value'
            }
        }

        Context 'Pipeline' {
            It 'Accepts values from the pipeline by value' {
                $return = 'value1', 'value2' | Get-Something
                Assert-MockCalled Get-PrivateFunction -Times 2 -Exactly -Scope It
                $return[0] | Should -Be 'value1'
                $return[1] | Should -Be 'value2'
            }

            It 'Accepts value from the pipeline by property name' {
                $return = 'value1', 'value2' | ForEach-Object {
                    [PSCustomObject]@{
                        Data = $_
                        OtherProperty = 'other'
                    }
                } | Get-Something

                Assert-MockCalled Get-PrivateFunction -Times 2 -Exactly -Scope It
                $return[0] | Should -Be 'value1'
                $return[1] | Should -Be 'value2'
            }
        }

        Context 'ShouldProcess' {
            It 'Supports WhatIf' {
                (Get-Command Get-Something).Parameters.ContainsKey('WhatIf') | Should -Be $true
                { Get-Something -Data 'value' -WhatIf } | Should -Not -Throw
            }

            It 'Does not call Get-PrivateFunction if WhatIf is set' {
                $return = Get-Something -Data 'value' -WhatIf
                $return | Should -BeNullOrEmpty
                Assert-MockCalled Get-PrivateFunction -Times 0 -Scope It
            }
        }
    }
}