reblend-testing-library/lib-esm/__tests__/config.js

Simple and complete Reblendjs testing utilities that encourage good testing practices.

import { configure, getConfig } from '../';
describe('configuration API', () => {
  let originalConfig;
  beforeEach(() => {
    // Grab the existing configuration so we can restore
    // it at the end of the test
    configure(existingConfig => {
      originalConfig = existingConfig;
      // Don't change the existing config
      return {};
    });
  });
  afterEach(() => {
    configure(originalConfig);
  });
  describe('DTL options', () => {
    test('configure can set by a plain JS object', () => {
      const testIdAttribute = 'not-data-testid';
      configure({
        testIdAttribute
      });
      expect(getConfig().testIdAttribute).toBe(testIdAttribute);
    });
    test('configure can set by a function', () => {
      // setup base option
      const baseTestIdAttribute = 'data-testid';
      configure({
        testIdAttribute: baseTestIdAttribute
      });
      const modifiedPrefix = 'modified-';
      configure(existingConfig => ({
        testIdAttribute: `${modifiedPrefix}${existingConfig.testIdAttribute}`
      }));
      expect(getConfig().testIdAttribute).toBe(`${modifiedPrefix}${baseTestIdAttribute}`);
    });
  });
  describe('RTL options', () => {
    test('configure can set by a plain JS object', () => {
      configure({
        reblendStrictMode: true
      });
      expect(getConfig().reblendStrictMode).toBe(true);
    });
    test('configure can set by a function', () => {
      configure(existingConfig => ({
        reblendStrictMode: !existingConfig.reblendStrictMode
      }));
      expect(getConfig().reblendStrictMode).toBe(true);
    });
  });
  test('configure can set DTL and RTL options at once', () => {
    const testIdAttribute = 'not-data-testid';
    configure({
      testIdAttribute,
      reblendStrictMode: true
    });
    expect(getConfig().testIdAttribute).toBe(testIdAttribute);
    expect(getConfig().reblendStrictMode).toBe(true);
  });
});