VS Code configuration to debug Jest test when working on a NodeJS app using Typescript

launch.json

{
    "name": "Jest All",
    "type": "node",
    "request": "launch",
    "program": "${workspaceFolder}/node_modules/.bin/jest",
    "args": [
        "--config",
        "${workspaceRoot}/config/jest.json",
        "--runInBand"
    ],
    "console": "internalConsole",
    "sourceMaps": true,
    "outFiles": ["${workspaceRoot}/dist/"],
    "windows": {
        "program": "${workspaceFolder}/node_modules/jest/bin/jest",
    }
},
        
{
    "type": "node",
    "request": "launch",
    "name": "Jest Current File",
    "program": "${workspaceFolder}/node_modules/.bin/jest",
    "args": [
        "--config",
        "${workspaceRoot}/config/jest.json",
        "${fileBasenameNoExtension}.js"
    ],
    "console": "integratedTerminal",
    "sourceMaps": true,
    "windows": {
      "program": "${workspaceFolder}/node_modules/jest/bin/jest",
    }
},

 {
    "type": "node",
    "request": "launch",
    "name": "vscode-jest-tests",
    "program": "${workspaceFolder}/node_modules/.bin/jest",
    "args": [
        "--config",
        "${workspaceRoot}/config/jest.json",
        "${fileBasenameNoExtension}.js"
    ],
    "console":"internalConsole",
    "sourceMaps": true,
    "windows": {
      "program": "${workspaceFolder}/node_modules/jest/bin/jest",
    }
}

tsconfig.json

{
  "compilerOptions": {
    /* Basic Options */
    "target": "es5",                          /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017', or 'ESNEXT'. */
    "module": "commonjs",                     /* Specify module code generation: 'none', 'commonjs', 'amd', 'system', 'umd', 'es2015', or 'ESNext'. */
    "lib": [ "es2016" ],                             /* Specify library files to be included in the compilation:  */
    "declaration": true,                   /* Generates corresponding '.d.ts' file. */
    "sourceMap": true,                     /* Generates corresponding '.map' file. */
    "outDir": "./dist",                        /* Redirect output structure to the directory. */
    "rootDir": "./src",                       /* Specify the root directory of input files. Use to control the output directory structure with --outDir. */

    /* Strict Type-Checking Options */
    "strict": true,                            /* Enable all strict type-checking options. */
    "noImplicitThis": false,                /* Raise error on 'this' expressions with an implied 'any' type. */

    "types": [ "node" ],                           /* Type declaration files to be included in compilation. */
    /* Experimental Options */
    "experimentalDecorators": true,        /* Enables experimental support for ES7 decorators. */
    "emitDecoratorMetadata": true,         /* Enables experimental support for emitting type metadata for decorators. */
  }
}

you need to install the following packages

npm install --save-dev jest ts-jest @types/jest

or

yarn add jest ts-jest @types/jest --dev