Visual Studio Code task for running mocha tests with problem matcher

tasks.json

{
    "version": "0.1.0",
    "command": "mocha",
    "isShellCommand": true,
    "showOutput": "silent",
    "args": [
        "--reporter",
        "tap",
        "--colors"
    ],
    "tasks": [
        {
            "taskName": "mocha",
            "suppressTaskName": true,
            "isTestCommand": true,
            "showOutput": "silent",
            "problemMatcher": {
                "owner": "mocha",
                "fileLocation": [
                    "relative",
                    "${workspaceRoot}"
                ],
                "pattern": [
                    {
                        "regexp": "^not\\sok\\s\\d+\\s(.*)$"
                    },
                    {
                        "regexp": "\\s+(.*)$",
                        "message": 1
                    },
                    {
                        "regexp": "\\s+at\\s(.*)\\s\\((.*):(\\d+):(\\d+)\\)",
                        "file": 2,
                        "line": 3,
                        "column": 4
                    }
                ]
            }
        }
    ]
}