chore: setup jest for monorepo watch, vscode for debugging

Author: nodkz

.vscode/launch.json

@@ -0,0 +1,30 @@
+{
+  // 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": [
+    {
+      "name": "Jest Current File",
+      "type": "node",
+      "request": "launch",
+      "program": "${workspaceFolder}/node_modules/.bin/jest",
+      "args": ["${fileBasenameNoExtension}", "--config", "jest.config.js"],
+      "console": "integratedTerminal",
+      "internalConsoleOptions": "neverOpen",
+      "runtimeArgs": ["--nolazy"], // tells v8 to compile your code ahead of time, so that breakpoints work correctly
+      "disableOptimisticBPs": true // also helps that breakpoints work correctly
+    },
+    {
+      "name": "Jest",
+      "type": "node",
+      "request": "launch",
+      "program": "${workspaceFolder}/node_modules/.bin/jest",
+      "args": ["--runInBand", "--watch"],
+      "cwd": "${workspaceFolder}",
+      "console": "integratedTerminal",
+      "internalConsoleOptions": "neverOpen",
+      "disableOptimisticBPs": true
+    }
+  ]
+}

.vscode/tasks.json

@@ -0,0 +1,25 @@
+{
+  // See https://go.microsoft.com/fwlink/?LinkId=733558
+  // for the documentation about the tasks.json format
+  "version": "2.0.0",
+  "tasks": [
+    {
+      "label": "Eslint checks",
+      "type": "shell",
+      "command": "./node_modules/.bin/eslint 'packages/*/src/**/*.{js,ts,tsx}'",
+      "problemMatcher": ["$eslint-stylish"],
+      "isBackground": true,
+      "presentation": {
+        "reveal": "never"
+      },
+      "runOptions": {
+        "reevaluateOnRerun": true,
+        "runOn": "folderOpen"
+      },
+      "group": {
+        "kind": "build",
+        "isDefault": true
+      }
+    }
+  ]
+}

jest.config.js

@@ -0,0 +1,18 @@
+module.exports = {
+  preset: 'ts-jest',
+  globals: {
+    'ts-jest': {
+      tsConfig: '<rootDir>/tsconfig.test.json',
+      isolatedModules: true,
+      diagnostics: false,
+    },
+  },
+  moduleFileExtensions: ['ts', 'tsx', 'js', 'jsx', 'json', 'node'],
+  transform: {
+    '^.+\\.ts$': 'ts-jest',
+  },
+  roots: ['<rootDir>/src'],
+  testPathIgnorePatterns: ['/node_modules/', '/lib/'],
+  testMatch: ['**/__tests__/**/*-test.(ts|js)'],
+  projects: ['packages/*'],
+};