. $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 "ConvertTo-SafeTeamCityMessage" {

    Context "When Provided With Non-Newline Characters" {
        It "Should Properly Sanitize |" {
            $testString = "I have a | pipe"

            $resultString = ConvertTo-SafeTeamCityMessage $testString

            $resultString | Should -Match "\|\|"
        }

        It "Should Properly Sanitize '" {
            $testString = "I have an ' apostrophe"

            $resultString = ConvertTo-SafeTeamCityMessage $testString

            $resultString | Should -Match "`|'"
        }

        It "Should Properly Sanitize ’" {
            $testString = "I have a *fancy* ’ apostrophe"

            $resultString = ConvertTo-SafeTeamCityMessage $testString

            $resultString | Should -Match "`|’"
        }

        It "Should Properly Sanitize [" {
            $testString = "I have a left [ bracket"

            $resultString = ConvertTo-SafeTeamCityMessage $testString

            # Powershell wants the ` for the |, regex wants the \ for the [... Rage.
            $resultString | Should -Match "`|\["
        }

        It "Should Properly Sanitize ]" {
            $testString = "I have a right ] bracket"

            $resultString = ConvertTo-SafeTeamCityMessage $testString

            $resultString | Should -Match "`|]"
        }
    }

    Context "When Provided With a Newline Charater" {
        It "Should Properly Sanitize ``n" {
            $testString = "I have an
            end line"

            $resultString = ConvertTo-SafeTeamCityMessage $testString

            $resultString | Should -Match "`\|n"
        }
    }

    Context "When Provided With a Character Return Character" {
        It "Should Properly Sanitize ``r" {
            $testString = "I have a character `r return"

            $resultString = ConvertTo-SafeTeamCityMessage $testString

            $resultString | Should -Match "`\|r"
        }
    }

    Context "When Provided With a String Which Doesn't Need Any Modification" {
        It "Should Make No Changes" {
            $testString = "I am a string with no special characters."

            $resultString = ConvertTo-SafeTeamCityMessage $testString

            $resultString | Should -eq $testString
        }
    }
    Context "When Provided With an empty string" {
        It "Should Return an Empty string" {
            $testString = ""

            $resultString = ConvertTo-SafeTeamCityMessage $testString

            $resultString | Should -eq $testString
        }
    }
}