antler/tests/rules/extension.ts

Directory structure linter

import { RegexRule } from '../../src/regex-rule';
import { Extension } from '../../src/rules/extension';
import { Node } from '../../src/types';

describe('Extension', () => {
  const fileNode: Node = {
    fullPath: 'root/parent/child.json',
    path: 'parent/child.json',
    name: 'child.json',
    parentName: 'parent',
    siblingNamesIncludingSelf: ['child.json'],
    childNames: [],
    isDirectory: false,
  };

  const directoryNode = {
    ...fileNode,
    isDirectory: true,
  };

  it('should extend RegexRule', () => {
    const instance = new Extension({ level: 'error', options: { allow: '' } });

    expect(instance instanceof RegexRule).toBe(true);
  });

  describe('shouldRun', () => {
    it('should run only for files', () => {
      const instance = new Extension({
        level: 'error',
        options: { allow: '' },
      });

      expect(instance['shouldRun'](fileNode)).toBe(true);
      expect(instance['shouldRun'](directoryNode)).toBe(false);
    });
  });

  describe('getPart', () => {
    it('should return the file extension', () => {
      const instance = new Extension({
        level: 'error',
        options: { allow: '' },
      });

      expect(instance['getPart'](directoryNode)).toBe('.json');
    });
  });
});