Use Pester code coverage with CoverageGutters in VSCode

.gitignore

coverage.xml

launch.json

// put into directory .vscode and remove this comment
{
    "version": "0.2.0",
    "configurations": [
        {
            "name": "Run tests in current file with CC",
            "type": "PowerShell",
            "request": "launch",
            "script": "${workspaceFolder}/test.ps1",
            "args": [
                "-Path", "'${file}'",
                "-Output", "${config:powershell.pester.debugOutputVerbosity}",
                "-CodeCoverage",
            ],
            "cwd": "${file}",
        }
    ]
}

settings.json

// put into directory .vscode and remove this comment
{
    // disable gutters to make breakpoints usable
    "coverage-gutters.showGutterCoverage": false,
    "coverage-gutters.showLineCoverage": true
}

test.ps1

param (
    [String] $Path = ".",
    [String] $Output = "Detailed",
    [Switch] $CodeCoverage
)

Import-Module Pester -MinimumVersion 5.2.0

$Configuration = [PesterConfiguration]::Default

$Configuration.Run.Path = $Path

$Configuration.Output.Verbosity = $Output

$Configuration.CodeCoverage.Enabled = [bool] $CodeCoverage
# CoverageGutters is new option in Pester 5.2
$Configuration.CodeCoverage.OutputFormat = "CoverageGutters"
$Configuration.CodeCoverage.Path = "$PSScriptRoot/src"
$Configuration.CodeCoverage.OutputPath = "$PSScriptRoot/coverage.xml"
$Configuration.CodeCoverage.CoveragePercentTarget = 90

$Configuration.Debug.WriteDebugMessages = $true
$Configuration.Debug.WriteDebugMessagesFrom = "CodeCoverage"


# for convenience just run the passed file when we invoke this via launchConfig.json when
# the file is a non-test file
$isDirectory = (Get-Item $Path).PSIsContainer
$isTestFile = $Path.EndsWith($Configuration.Run.TestExtension.Value)
if (-not $isDirectory -and -not $isTestFile) {
    & $Path
    return
}

Invoke-Pester -Configuration $Configuration

can I suggest that line 29 changes to:

$isTestFile = $Path.EndsWith($Configuration.Run.TestExtension.Value, "CurrentCultureIgnoreCase")

@davidwallis3101 how about -like ("*" + $Configuration.Run.TestExtension.Value)?

Will prob work better as I see an odd issue where I end up with $path being a path as a string, and then times an object with a path with a property and then EndsWith isn't a valid method when its a null value. I just haven't quite got to the bottom of it.