message: Fixing broken test and adding one for the undefined case
diff: @@ -173,16 +173,16 @@ describe('GithubDiscoveryProcessor', () => {
  it('output repositories with wildcards default branch option', async () => {
  const location: LocationSpec = {
  type: 'github-discovery',
  - target: 'https://github.com/backstage/techdocs-*/blob/-/catalog.yaml',
  + target: 'https://github.com/backstage/*/blob/-/catalog.yaml',
  };
  mockGetOrganizationRepositories.mockResolvedValueOnce({
  repositories: [
  {
  name: 'backstage',
  - url: 'https://github.com/backstage/backstage',
  + url: 'https://github.com/backstage/tech-docs',
  isArchived: false,
  defaultBranchRef: {
  - name: 'master',
  + name: 'main',
  },
  },
  ],
  @@ -195,12 +195,35 @@ describe('GithubDiscoveryProcessor', () => {
  type: 'location',
  location: {
  type: 'url',
  - target: 'https://github.com/backstage/blob/master/catalog.yaml',
  + target:
  + 'https://github.com/backstage/tech-docs/blob/main/catalog.yaml',
  },
  optional: true,
  });
  });
  + it("doesn't output repositories as default branch returned is empty", async () => {
  + const location: LocationSpec = {
  + type: 'github-discovery',
  + target: 'https://github.com/backstage/blob/-/catalog.yaml',
  + };
  + mockGetOrganizationRepositories.mockResolvedValueOnce({
  + repositories: [
  + {
  + name: 'backstage',
  + url: 'https://github.com/backstage/tech-docs',
  + isArchived: false,
  + defaultBranchRef: null,
  + },
  + ],
  + });
  + const emitter = jest.fn();
  +
  + await processor.readLocation(location, false, emitter);
  +
  + expect(emitter).not.toHaveBeenCalled();
  + });
  +
  it('output repositories with wildcards default branch option without catalog-info patch or branch match', async () => {
  const location: LocationSpec = {
  type: 'github-discovery',
  