How to use

PackageMaterialMetadataLoader

in

com.thoughtworks.go.plugin.access.packagematerial

@Test
public void shouldFetchMetadataOnPluginLoadedCallback() throws Exception {
  PackageMaterialMetadataLoader spy = spy(metadataLoader);
  doNothing().when(spy).fetchRepositoryAndPackageMetaData(pluginDescriptor);
  when(packageRepositoryExtension.canHandlePlugin(pluginDescriptor.id())).thenReturn(true);
  spy.pluginLoaded(pluginDescriptor);
  verify(spy).fetchRepositoryAndPackageMetaData(pluginDescriptor);
}

@Test
public void shouldRegisterAsPluginFrameworkStartListener() throws Exception {
  metadataLoader = new PackageMaterialMetadataLoader(pluginManager, packageRepositoryExtension);
  verify(pluginManager).addPluginChangeListener(metadataLoader);
}

@Override
public void pluginLoaded(GoPluginDescriptor pluginDescriptor) {
  if (packageRepositoryExtension.canHandlePlugin(pluginDescriptor.id())) {
    fetchRepositoryAndPackageMetaData(pluginDescriptor);
  }
}

  @Test
  public void shouldRemoveMetadataOnPluginUnLoadedCallback() throws Exception {
    RepositoryMetadataStore.getInstance().addMetadataFor(pluginDescriptor.id(), new PackageConfigurations());
    PackageMetadataStore.getInstance().addMetadataFor(pluginDescriptor.id(), new PackageConfigurations());
    when(packageRepositoryExtension.canHandlePlugin(pluginDescriptor.id())).thenReturn(true);
    metadataLoader.pluginUnLoaded(pluginDescriptor);
    assertThat(RepositoryMetadataStore.getInstance().getMetadata(pluginDescriptor.id()), is(nullValue()));
    assertThat(PackageMetadataStore.getInstance().getMetadata(pluginDescriptor.id()), is(nullValue()));
  }
}

@Test
public void shouldThrowExceptionWhenNullRepositoryConfigurationReturned() {
  when(packageRepositoryExtension.getRepositoryConfiguration(pluginDescriptor.id())).thenReturn(null);
  try {
    metadataLoader.fetchRepositoryAndPackageMetaData(pluginDescriptor);
  } catch (Exception e) {
    assertThat(e.getMessage(), is("Plugin[plugin-id] returned null repository configuration"));
  }
  assertThat(RepositoryMetadataStore.getInstance().getMetadata(pluginDescriptor.id()), nullValue());
  assertThat(PackageMetadataStore.getInstance().getMetadata(pluginDescriptor.id()), nullValue());
}

@Test
public void shouldNotTryToFetchMetadataOnPluginLoadedCallback() throws Exception {
  PackageMaterialMetadataLoader spy = spy(metadataLoader);
  when(packageRepositoryExtension.canHandlePlugin(pluginDescriptor.id())).thenReturn(false);
  spy.pluginLoaded(pluginDescriptor);
  verify(spy, never()).fetchRepositoryAndPackageMetaData(pluginDescriptor);
}

@Test
public void shouldThrowExceptionWhenNullPackageConfigurationReturned() {
  when(packageRepositoryExtension.getPackageConfiguration(pluginDescriptor.id())).thenReturn(null);
  try {
    metadataLoader.fetchRepositoryAndPackageMetaData(pluginDescriptor);
  } catch (Exception e) {
    assertThat(e.getMessage(), is("Plugin[plugin-id] returned null repository configuration"));
  }
  assertThat(RepositoryMetadataStore.getInstance().getMetadata(pluginDescriptor.id()), nullValue());
  assertThat(PackageMetadataStore.getInstance().getMetadata(pluginDescriptor.id()), nullValue());
}

@Before
public void setUp() throws Exception {
  pluginDescriptor = new GoPluginDescriptor("plugin-id", "1.0", null, null, null, true);
  pluginManager = mock(PluginManager.class);
  packageRepositoryExtension = mock(PackageRepositoryExtension.class);
  metadataLoader = new PackageMaterialMetadataLoader(pluginManager, packageRepositoryExtension);
  RepositoryMetadataStore.getInstance().removeMetadata(pluginDescriptor.id());
  PackageMetadataStore.getInstance().removeMetadata(pluginDescriptor.id());
}

@Test
public void shouldFetchPackageMetadataForPluginsWhichImplementPackageRepositoryMaterialExtensionPoint() {
  RepositoryConfiguration expectedRepoConfigurations = new RepositoryConfiguration();
  com.thoughtworks.go.plugin.api.material.packagerepository.PackageConfiguration expectedPackageConfigurations = new PackageConfiguration();
  when(packageRepositoryExtension.getRepositoryConfiguration(pluginDescriptor.id())).thenReturn(expectedRepoConfigurations);
  when(packageRepositoryExtension.getPackageConfiguration(pluginDescriptor.id())).thenReturn(expectedPackageConfigurations);
  metadataLoader.fetchRepositoryAndPackageMetaData(pluginDescriptor);
  assertThat(RepositoryMetadataStore.getInstance().getMetadata(pluginDescriptor.id()).getRepositoryConfiguration(), is(expectedRepoConfigurations));
  assertThat(PackageMetadataStore.getInstance().getMetadata(pluginDescriptor.id()).getPackageConfiguration(), is(expectedPackageConfigurations));
}