import 'dart:async'; import 'dart:io'; import 'package:mockito/mockito.dart'; import '../../../packages/flutter/test/painting/image_data.dart'; // Returns a mock HTTP client that responds with an image to all requests. MockHttpClient createMockImageHttpClient(SecurityContext _) { final MockHttpClient client = MockHttpClient(); final MockHttpClientRequest request = MockHttpClientRequest(); final MockHttpClientResponse response = MockHttpClientResponse(); final MockHttpHeaders headers = MockHttpHeaders(); when(client.getUrl(any)).thenAnswer((_) => Future<HttpClientRequest>.value(request)); when(request.headers).thenReturn(headers); when(request.close()).thenAnswer((_) => Future<HttpClientResponse>.value(response)); when(response.contentLength).thenReturn(kTransparentImage.length); when(response.statusCode).thenReturn(HttpStatus.ok); when(response.listen(any)).thenAnswer((Invocation invocation) { final void Function(List<int>) onData = invocation.positionalArguments[0]; final void Function() onDone = invocation.namedArguments[#onDone]; final void Function(Object, [StackTrace]) onError = invocation.namedArguments[#onError]; final bool cancelOnError = invocation.namedArguments[#cancelOnError]; return Stream<List<int>>.fromIterable(<List<int>>[kTransparentImage]).listen(onData, onDone: onDone, onError: onError, cancelOnError: cancelOnError); }); return client; } class MockHttpClient extends Mock implements HttpClient {} class MockHttpClientRequest extends Mock implements HttpClientRequest {} class MockHttpClientResponse extends Mock implements HttpClientResponse {} class MockHttpHeaders extends Mock implements HttpHeaders {}