rollup#ExternalOption TypeScript Examples

The following examples show how to use rollup#ExternalOption. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example #1
Source File: config.test.ts    From backstage with Apache License 2.0 6 votes vote down vote up 
describe('makeRollupConfigs', () => {
  it('should mark external modules correctly', async () => {
    const importerPath = '/some/path.ts'; // when specified we don't care about the path

    const [config] = await makeRollupConfigs({
      outputs: new Set([Output.cjs]),
    });
    const external = config.external as Exclude<
      ExternalOption,
      string | RegExp | (string | RegExp)[]
    >;

    expect(external('foo', importerPath, false)).toBe(true);
    expect(external('./foo', importerPath, false)).toBe(false);
    expect(external('/foo', importerPath, false)).toBe(false);
    expect(external('.\\foo', importerPath, false)).toBe(false);
    expect(external('c:\\foo', importerPath, false)).toBe(false);
    expect(external('@foo/bar', importerPath, false)).toBe(true);
    expect(external('../foo', importerPath, false)).toBe(false);

    // Modules without an importer are entry points, i.e. not external
    expect(external('foo', undefined, false)).toBe(false);
    expect(external('./foo', undefined, false)).toBe(false);
    expect(external('/foo', undefined, false)).toBe(false);
    expect(external('.\\foo', undefined, false)).toBe(false);
    expect(external('c:\\foo', undefined, false)).toBe(false);
    expect(external('@foo/bar', undefined, false)).toBe(false);
    expect(external('../foo', undefined, false)).toBe(false);

    // After modules have been resolved they're never marked as external
    expect(external('foo', importerPath, true)).toBe(false);
    expect(external('./foo', importerPath, true)).toBe(false);
    expect(external('/foo', importerPath, true)).toBe(false);
    expect(external('.\\foo', importerPath, true)).toBe(false);
    expect(external('c:\\foo', importerPath, true)).toBe(false);
    expect(external('@foo/bar', importerPath, true)).toBe(false);
    expect(external('../foo', importerPath, true)).toBe(false);
  });
});