launch.json

{
    "version": "0.2.0",
    "configurations": [
        {
            "args": [],
            "cwd": "${workspaceRoot}",
            "env": {
                "NODE_ENV": "test"
            },
            "console": "internalConsole",
            "name": "Run Tests",
            "outFiles": ["${workspaceRoot}/dist"],
            "preLaunchTask": "tsc",
            "program": "${workspaceRoot}/node_modules/.bin/jest",
            "request": "launch",
            "runtimeArgs": [],
            "runtimeExecutable": null,
            "sourceMaps": true,
            "stopOnEntry": false,
            "type": "node"
        },
        {
            "name": "Attach",
            "type": "node",
            "request": "attach",
            "port": 5858
        }
    ]
}