Compass app (#2446)

compass_app/app/testing/mocks.dart

@@ -0,0 +1,58 @@
+// Copyright 2024 The Flutter team. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:convert';
+import 'dart:io';
+
+import 'package:go_router/go_router.dart';
+import 'package:mocktail/mocktail.dart';
+
+class MockGoRouter extends Mock implements GoRouter {}
+
+class MockHttpClient extends Mock implements HttpClient {}
+
+class MockHttpHeaders extends Mock implements HttpHeaders {}
+
+class MockHttpClientRequest extends Mock implements HttpClientRequest {}
+
+class MockHttpClientResponse extends Mock implements HttpClientResponse {}
+
+extension HttpMethodMocks on MockHttpClient {
+  void mockGet(String path, Object object) {
+    when(() => get(any(), any(), path)).thenAnswer((invocation) {
+      final request = MockHttpClientRequest();
+      final response = MockHttpClientResponse();
+      when(() => request.close()).thenAnswer((_) => Future.value(response));
+      when(() => request.headers).thenReturn(MockHttpHeaders());
+      when(() => response.statusCode).thenReturn(200);
+      when(() => response.transform(utf8.decoder))
+          .thenAnswer((_) => Stream.value(jsonEncode(object)));
+      return Future.value(request);
+    });
+  }
+
+  void mockPost(String path, Object object, [int statusCode = 201]) {
+    when(() => post(any(), any(), path)).thenAnswer((invocation) {
+      final request = MockHttpClientRequest();
+      final response = MockHttpClientResponse();
+      when(() => request.close()).thenAnswer((_) => Future.value(response));
+      when(() => request.headers).thenReturn(MockHttpHeaders());
+      when(() => response.statusCode).thenReturn(statusCode);
+      when(() => response.transform(utf8.decoder))
+          .thenAnswer((_) => Stream.value(jsonEncode(object)));
+      return Future.value(request);
+    });
+  }
+
+  void mockDelete(String path) {
+    when(() => delete(any(), any(), path)).thenAnswer((invocation) {
+      final request = MockHttpClientRequest();
+      final response = MockHttpClientResponse();
+      when(() => request.close()).thenAnswer((_) => Future.value(response));
+      when(() => request.headers).thenReturn(MockHttpHeaders());
+      when(() => response.statusCode).thenReturn(204);
+      return Future.value(request);
+    });
+  }
+}