launch.json

{
  // Use IntelliSense to learn about possible attributes.
  // Hover to view descriptions of existing attributes.
  // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
  "version": "0.2.0",
  "configurations": [
    {
      "type": "node",
      "request": "launch",
      "name": "Typescript Mocha All",
      "program": "${workspaceFolder}/node_modules/mocha/bin/_mocha",
      "env": {
        "TS_NODE_COMPILER": "ttypescript",
        "TS_NODE_FILES": "true"
      },
      // 10.13.0 is the earliest version of Node.js that our dev tooling supports.
      "runtimeVersion": "10.13.0",
      "args": [
        "${workspaceFolder}/node_modules/mocha/bin/_mocha",
        "--throw-deprecation",
        "--trace-warnings",
        "--check-leaks",
        "--no-timeout",
        "--colors",
        "--require",
        "ts-node/register",
        "${workspaceFolder}/packages/**/tests/**/*.test.ts"
      ],
      "skipFiles": [
        "<node_internals>/**"
      ],
      "console": "integratedTerminal",
      "internalConsoleOptions": "neverOpen"
    }
  ]
}