. $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 = ""
$currentErrorActionPreference = $ErrorActionPreference
$ErrorActionPreference = "stop"

Describe 'Get-MicroserviceNewRelicMapping'{
    # Silence messages. Comment these out if you're debugging tests.
    Mock -CommandName Write-Host -MockWith {}
    Mock -CommandName Write-Warning -MockWith {}
    Mock -CommandName Write-Error -MockWith {}
    Mock -CommandName Set-Content -MockWith {}
    Mock -CommandName Add-Member -MockWith {}
    Mock -CommandName Join-Path -MockWith {return "TestDrive:\$ChildPath"}
    Mock -CommandName Test-Path -MockWith {return $true}
    Mock -CommandName Get-Content -MockWith { return @"
app.package1
app.package2
"@
    }

    Context 'When Some New Relic Monitoring Should Be Disabled' {
        $packageData = New-PackageMetadataObject
        $packageData.DisableMicroserviceNewRelic = $true
        $appPackage1 = New-DummyPackageInstallationData -PackageName "app.package1" -PackageVersion "1.0.0" -IsFullScale
        $appPackage2 = New-DummyPackageInstallationData -PackageName "app.package2" -PackageVersion "1.0.0" -IsFullScale

        $packageArray = @($appPackage1, $appPackage2)

        $packageData.AppPackagesToInstall = $packageArray

        It "Sets NR On/Off Status" {
            $packages = Get-MicroserviceNewRelicMapping -BuildCheckoutDirectory "SomePath" -PackageMetadata $packageData

            $packages | Should -Not -BeNullOrEmpty

            Assert-MockCalled -CommandName Add-Member -Scope Context -Times 1
        }
    }


    Context 'When No New Relic Monitoring Should Be Disabled' {
        $packageData = New-PackageMetadataObject
        $packageData.DisableMicroserviceNewRelic = $false
        $appPackage1 = New-DummyPackageInstallationData -PackageName "app.package1" -PackageVersion "1.0.0" -IsFullScale
        $appPackage2 = New-DummyPackageInstallationData -PackageName "app.package2" -PackageVersion "1.0.0" -IsFullScale

        $packageArray = @($appPackage1, $appPackage2)

        $packageData.AppPackagesToInstall = $packageArray

        It "Does Not Modify New Relic Status On Any Packages"{
            $packages = Get-MicroserviceNewRelicMapping -BuildCheckoutDirectory "SomePath" -PackageMetadata $packageData

            $packages | Should -Not -BeNullOrEmpty

            Assert-MockCalled -CommandName Add-Member -Scope Context -Times 0
        }
    }

    Context 'When NewRelicMicroServices.txt is not found' {
        # No New Relic file:
        Mock -CommandName Test-Path -MockWith {return $false}
        Mock -CommandName Write-Warning -MockWith {}

        $packageData = New-PackageMetadataObject
        $packageData.DisableMicroserviceNewRelic = $true
        $appPackage1 = New-DummyPackageInstallationData -PackageName "app.package1" -PackageVersion "1.0.0" -IsFullScale
        $appPackage2 = New-DummyPackageInstallationData -PackageName "app.package2" -PackageVersion "1.0.0" -IsFullScale

        $packageArray = @($appPackage1, $appPackage2)

        $packageData.AppPackagesToInstall = $packageArray

        It "Disables Everything"{

            $packages = Get-MicroserviceNewRelicMapping -BuildCheckoutDirectory "SomePath" -PackageMetadata $packageData

            foreach ($package in $packages) {
                $package.EnableNewRelic | Should -BeNullOrEmpty
            }
            Assert-MockCalled -CommandName Write-Warning -Scope Context -Times 1
        }
    }
}