public TestSource( ITestMetadataExplorer testMetadataExplorer, ITestFileExplorer testFileExplorer, IMetadataElementsSource metadataElementsSource, ITestProvider testProvider) { _testMetadataExplorer = testMetadataExplorer; _testFileExplorer = testFileExplorer; _metadataElementsSource = metadataElementsSource; _testProvider = testProvider; }