run .vscode pester tests

tasks.json

// A task runner that invokes Pester to run all Pester tests under the
// current workspace folder.

// NOTE: This Pester task runner requires an updated version of Pester (>=3.4.0)
// in order for the problemMatcher to find failed test information (message, line, file).
// If you don't have that version, you can update Pester from the PSGallery like so:
//
// PS C:\> Update-Module Pester
//
// If that gives an error like:
// "Module 'Pester' was not installed by using Install-Module, so it cannot be updated."
// then execute:
//
// PS C:\> Install-Module Pester -Scope CurrentUser -Force
//

// Available variables which can be used inside of strings.
// ${workspaceRoot}: the root folder of the team
// ${file}: the current opened file
// ${fileBasename}: the current opened file's basename
// ${fileDirname}: the current opened file's dirname
// ${fileExtname}: the current opened file's extension
// ${cwd}: the current working directory of the spawned process

{
	"version": "0.1.0",

	// Start PowerShell
	"command": "${env.windir}\\sysnative\\windowspowershell\\v1.0\\PowerShell.exe",

	// The command is a shell script
	"isShellCommand": true,

	// Show the output window always
	"showOutput": "always",

	"args": [
        "-NoProfile", "-ExecutionPolicy", "Bypass",
        "Write-Host 'Invoking Pester...'; Invoke-Pester -PesterOption @{IncludeVSCodeMarker=$true};",
        "Invoke-Command { Write-Host \"Completed all tasks in task runner: $($args[0])\" } -args"
        ],

    // Associate with test task runner
    "tasks": [
        {
            "taskName": "Pester",
            "isTestCommand": true,
            "problemMatcher": [
                {
                    "owner": "powershell",
                    "fileLocation": ["absolute"],
                    "severity": "error",
                    "pattern": [
                        {
                            "regexp": "^\\s*(\\[-\\]\\s*.*?)(\\d+)ms\\s*$",
                            "message": 1
                        },
                        {
                            "regexp": "^\\s+at\\s+[^,]+,\\s*(.*?):\\s+line\\s+(\\d+)$",
                            "file": 1,
                            "line": 2
                        }
                    ]
                }
            ]
        }
    ]
}