. $PSScriptRoot\..\..\Load-PesterModules.ps1
$here = Split-Path -Parent $MyInvocation.MyCommand.Path
$sut = (Split-Path -Leaf $MyInvocation.MyCommand.Path) -replace '\.tests\.', '.'
$functionPath = Join-Path -Path $here -ChildPath $sut
Write-Host "Overriding SUT: $functionPath"
Import-Module $functionPath -Force
$moduleForMock = ""

Describe "Start-IISAndServices" {

    Context "Parameter Validation" {

        It "Uses the Supplied Max Parallel Parameter" {

            Mock -ModuleName $moduleForMock -CommandName Start-Sleep -MockWith {  }
            Mock -ModuleName $moduleForMock -CommandName Start-ServicesOnly -MockWith {  }

            $maxParallelTestValue = 20
            Start-IISAndServices -maxParallel $maxParallelTestValue
            Assert-MockCalled -CommandName Start-ServicesOnly -Times 1 -Exactly -Scope It `
                -ModuleName $moduleForMock -ParameterFilter { $maxParallel -eq $maxParallelTestValue }
        }

        It "Writes to Host if a Non-Default Max Parallel Param is Used" {

            Mock -ModuleName $moduleForMock -CommandName Start-Sleep -MockWith {  }
            Mock -ModuleName $moduleForMock -CommandName Start-ServicesOnly -MockWith {  }
            Mock -ModuleName $moduleForMock -CommandName Write-Host -MockWith {  }

            $maxParallelTestValue = 20
            Start-IISAndServices -maxParallel $maxParallelTestValue
            Assert-MockCalled -CommandName Write-Host -Times 1 -Exactly -Scope It `
                -ModuleName $moduleForMock -ParameterFilter { $Object -match "Service start parallelism set to $maxParallelTestValue" }
        }
    }
}