Added jest testing.

jest.config.ts

@@ -0,0 +1,7 @@
+export default {
+  roots: ['./src'],
+  testMatch: ['**/__tests__/**/*.+(ts|tsx|js)', '**/?(*.)+(spec|test).+(ts|tsx|js)'],
+  transform: {
+    '^.+\\.(ts|tsx)$': 'ts-jest',
+  },
+};

package.json

@@ -43,6 +43,7 @@
     "lint": "next lint --quiet",
     "prepare": "node -e \"if (process.env.NODE_ENV !== 'production'){process.exit(1)} \" || husky install",
     "postbuild": "node scripts/postbuild.js",
+    "test": "jest",
     "cypress-open": "cypress open cypress run",
     "cypress-run": "cypress run cypress run"
   },
@@ -129,6 +130,7 @@
     "@rollup/plugin-replace": "^5.0.2",
     "@svgr/rollup": "^8.1.0",
     "@svgr/webpack": "^8.1.0",
+    "@types/jest": "^29.5.12",
     "@types/node": "^20.9.0",
     "@types/react": "^18.2.41",
     "@types/react-dom": "^18.2.17",
@@ -148,6 +150,7 @@
     "eslint-plugin-prettier": "^4.0.0",
     "extract-react-intl-messages": "^4.1.1",
     "husky": "^8.0.3",
+    "jest": "^29.7.0",
     "lint-staged": "^14.0.1",
     "postcss": "^8.4.31",
     "postcss-flexbugs-fixes": "^5.0.2",
@@ -169,6 +172,7 @@
     "stylelint-config-prettier": "^9.0.3",
     "stylelint-config-recommended": "^14.0.0",
     "tar": "^6.1.2",
+    "ts-jest": "^29.1.2",
     "ts-node": "^10.9.1",
     "typescript": "^5.1.6"
   }

src/lib/__tests__/format.test.ts

@@ -0,0 +1,38 @@
+import * as format from '../format';
+
+test('parseTime', () => {
+  expect(format.parseTime(86400 + 3600 + 60 + 1)).toEqual({
+    days: 1,
+    hours: 1,
+    minutes: 1,
+    seconds: 1,
+    ms: 0,
+  });
+});
+
+test('formatTime', () => {
+  expect(format.formatTime(3600 + 60 + 1)).toBe('1:01:01');
+});
+
+test('formatShortTime', () => {
+  expect(format.formatShortTime(3600 + 60 + 1)).toBe('1m1s');
+
+  expect(format.formatShortTime(3600 + 60 + 1, ['h', 'm', 's'])).toBe('1h1m1s');
+});
+
+test('formatNumber', () => {
+  expect(format.formatNumber('10.2')).toBe('10');
+  expect(format.formatNumber('10.5')).toBe('11');
+});
+
+test('formatLongNumber', () => {
+  expect(format.formatLongNumber(1200000)).toBe('1.2m');
+  expect(format.formatLongNumber(575000)).toBe('575k');
+  expect(format.formatLongNumber(10500)).toBe('10.5k');
+  expect(format.formatLongNumber(1200)).toBe('1.20k');
+});
+
+test('stringToColor', () => {
+  expect(format.stringToColor('hello')).toBe('#d218e9');
+  expect(format.stringToColor('goodbye')).toBe('#11e956');
+});

tsconfig.json

@@ -39,5 +39,5 @@
     ]
   },
   "include": ["**/*.ts", "**/*.tsx", "**/*.js", "**/*.jsx", "next-env.d.ts", ".next/types/**/*.ts"],
-  "exclude": ["node_modules"]
+  "exclude": ["node_modules", "./cypress.config.ts", "cypress"]
 }