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
                    }
                ]
            }
        }
    ]
}

{
            "taskName": "gulp --reporter tap",
            "command": "gulp",
            "isShellCommand": true,
            "args": [
                "--reporter",
                "tap"
            ],
            "showOutput": "silent",
            "problemMatcher": [
                {
                    "owner": "mocha",
                    "fileLocation": [
                        "relative",
                        "${workspaceRoot}"
                    ],
                    "pattern": [
                        {
                            "regexp": "^not\\sok\\s\\d+\\s(.*)$"
                        },
                        {
                            "regexp": "\\s+(.*)$",
                            "message": 1
                        },
                        {
                            "regexp": "\\s+at\\s(.*)\\s\\((.*):(\\d+):(\\d+)\\)",
                            "file": 2,
                            "line": 3,
                            "column": 4
                        }
                    ],
                    "background": {
                        "activeOnStart": true,
                        "beginsPattern": {
                            "regexp": "\\[[\\d]{2}:[\\d]{2}:[\\d]{2}\\] Starting 'tsc-app'\\.\\.\\."
                        },
                        "endsPattern": {
                            "regexp": "\\[[\\d]{2}:[\\d]{2}:[\\d]{2}\\] (Finished )?'tsc-app' (errored )?after"
                        }
                    }
                },
                {
                    "owner": "typescript",
                    "applyTo": "closedDocuments",
                    "fileLocation": [
                        "relative",
                        "${cwd}"
                    ],
                    "pattern": "$tsc",
                    "background": {
                        "activeOnStart": true,
                        "beginsPattern": {
                            "regexp": "\\[[\\d]{2}:[\\d]{2}:[\\d]{2}\\] Starting 'tsc-app'\\.\\.\\."
                        },
                        "endsPattern": {
                            "regexp": "\\[[\\d]{2}:[\\d]{2}:[\\d]{2}\\] (Finished )?'tsc-app' (errored )?after"
                        }
                    }
                }
            ]
        }```