snapshot of https://github.com/flutter/samples.git (main, 2026-09-16; blobs > 131072B omitted)

form_app/test/form_app_test.dart

@@ -0,0 +1,51 @@
+// Copyright 2021, the Flutter project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+import 'package:flutter/material.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:form_app/src/http/mock_client.dart';
+import 'package:form_app/src/sign_in_http.dart';
+
+void main() {
+  testWidgets('sign in', (tester) async {
+    await _signIn(tester, 'root', 'password');
+    expect(find.text('Unable to sign in.'), findsNothing);
+    expect(find.text('Successfully signed in.'), findsOneWidget);
+  });
+
+  testWidgets('sign in with bad password', (tester) async {
+    await _signIn(tester, 'admin', 'pw');
+    expect(find.byType(AlertDialog), findsOneWidget);
+    expect(find.text('Unable to sign in.'), findsOneWidget);
+    expect(find.text('Successfully signed in.'), findsNothing);
+  });
+}
+
+Future<void> _signIn(
+  WidgetTester tester,
+  String email,
+  String password,
+) async {
+  await tester.pumpWidget(
+    MaterialApp(home: SignInHttpDemo(httpClient: mockClient)),
+  );
+
+  var textFormField = find.byType(TextFormField);
+  expect(textFormField, findsNWidgets(2));
+
+  // Enter email / password
+  var emailField = textFormField.at(0);
+  var passwordField = textFormField.at(1);
+  await tester.enterText(emailField, email);
+  await tester.enterText(passwordField, password);
+
+  // Sign in
+  var button = find.byType(TextButton);
+  expect(button, findsOneWidget);
+  await tester.tap(button);
+
+  // Wait for dialog
+  await tester.pumpAndSettle();
+  expect(find.byType(AlertDialog), findsOneWidget);
+}