.jestrc.json

{
    "globals": {
      "ts-jest": {
        "useBabelrc": "false",
        "babelConfig": {
          "presets": [
            ["env", {
              "targets": {
                "node": "current"
              },
              "spec": true,
              "modules": false,
              "useBuiltIns": "usage",
              "shippedProposals": true
            }]
          ],
          "plugins": [
            ["transform-object-rest-spread", { "useBuiltIns": true }]
          ]
        }
      }
    },
    "testEnvironment": "node",
    "collectCoverage": true,
    "coverageDirectory": "./coverage",
    "coverageThreshold": {
      "global": {
        "branches": 80,
        "functions": 80,
        "lines": 80,
        "statements": 80
      }
    },
    "collectCoverageFrom": [
      "**/src/**/*.{ts|tsx}",
      "!**/node_modules/**",
      "!**/src/demo/**/*.{ts|tsx}",
      "!**/src/test*/**/*.{ts|tsx}",
      "!**/src/**/*.d.ts"
    ],
    "verbose": true,
    "bail": true,
    "roots": [
      "<rootDir>/src/"
    ],
    "transform": {
      "^.+\\.tsx?$": "<rootDir>/node_modules/ts-jest/preprocessor.js"
    },
    "testMatch": [
      "**/src/test*/**/*.spec.(ts|tsx)"
    ],
    "moduleFileExtensions": [
      "ts",
      "tsx",
      "js",
      "json"
    ]
  }