Test: Unit tests for i18n #CCM-25

package.json

@@ -83,6 +83,7 @@
  "esbuild": "^0.13.6",
  "husky": "^7.0.2",
  "jest": "^27.3.1",
+ "jest-each": "^27.3.1",
  "npm-run-all": "^4.1.5",
  "postcss": "^8.3.6",
  "postcss-cli": "^9.0.2",

src/__tests__/utils.test.js

@@ -0,0 +1,33 @@
+import { addSeparators, pluralize } from '../utils';
+
+describe('utils', () => {
+ describe('addSeparators', () => {
+ it('should return one word without separators', () => {
+ expect(addSeparators(['test'])).toBe('test');
+ });
+
+ it('should return two words separated with `and`', () => {
+ expect(addSeparators(['test1', 'test2'], 'and')).toBe('test1 and test2');
+ });
+
+ it('should return three words separated with comma and `and`', () => {
+ expect(addSeparators(['test1', 'test2', 'test3'], 'and')).toBe('test1, test2 and test3');
+ });
+
+ it('should return multiple words separated with comma and `and` as last separator', () => {
+ expect(addSeparators(['test1', 'test2', 'test3', 'test4', 'test5'], 'and')).toBe(
+ 'test1, test2, test3, test4 and test5',
+ );
+ });
+ });
+
+ describe('pluralize', () => {
+ it('should return singular', () => {
+ expect(pluralize(1, 'test', 'tests')).toBe('test');
+ });
+
+ it('should return plural', () => {
+ expect(pluralize(2, 'test', 'tests')).toBe('tests');
+ });
+ });
+});