extract.spec.ts

import { getName, loadFixture } from '../../../test/util';
import { extractPackageFile } from './extract';

const yamlFile1 = loadFixture('docker-compose.1.yml');
const yamlFile3 = loadFixture('docker-compose.3.yml');
const yamlFile3NoVersion = loadFixture('docker-compose.3-no-version.yml');

describe(getName(), () => {
  describe('extractPackageFile()', () => {
    it('returns null for empty', () => {
      expect(extractPackageFile('')).toBeNull();
    });
    it('returns null for non-object YAML', () => {
      expect(extractPackageFile('nothing here')).toBeNull();
    });
    it('returns null for malformed YAML', () => {
      expect(extractPackageFile('nothing here\n:::::::')).toBeNull();
    });
    it('extracts multiple image lines for version 1', () => {
      const res = extractPackageFile(yamlFile1);
      expect(res.deps).toMatchSnapshot();
      expect(res.deps).toHaveLength(8);
    });
    it('extracts multiple image lines for version 3', () => {
      const res = extractPackageFile(yamlFile3);
      expect(res.deps).toMatchSnapshot();
      expect(res.deps).toHaveLength(8);
    });
    it('extracts multiple image lines for version 3 without set version key', () => {
      const res = extractPackageFile(yamlFile3NoVersion);
      expect(res.deps).toMatchSnapshot();
      expect(res.deps).toHaveLength(8);
    });
  });
});