Test raw autocomplete api examples (#148234)

Part of #130459.

dev/bots/check_code_samples.dart

@@ -364,10 +364,6 @@ final Set<String> _knownMissingTests = <String>{
   'examples/api/test/rendering/sliver_grid/sliver_grid_delegate_with_fixed_cross_axis_count.1_test.dart',
   'examples/api/test/rendering/scroll_direction/scroll_direction.0_test.dart',
   'examples/api/test/painting/star_border/star_border.0_test.dart',
-  'examples/api/test/widgets/autocomplete/raw_autocomplete.focus_node.0_test.dart',
-  'examples/api/test/widgets/autocomplete/raw_autocomplete.2_test.dart',
-  'examples/api/test/widgets/autocomplete/raw_autocomplete.1_test.dart',
-  'examples/api/test/widgets/autocomplete/raw_autocomplete.0_test.dart',
   'examples/api/test/widgets/navigator/navigator.restorable_push_and_remove_until.0_test.dart',
   'examples/api/test/widgets/navigator/navigator.0_test.dart',
   'examples/api/test/widgets/navigator/navigator.restorable_push.0_test.dart',

examples/api/test/widgets/autocomplete/raw_autocomplete.0_test.dart

@@ -0,0 +1,47 @@
+// Copyright 2014 The Flutter Authors. 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_api_samples/widgets/autocomplete/raw_autocomplete.0.dart' as example;
+import 'package:flutter_test/flutter_test.dart';
+
+void main() {
+  testWidgets('Autocomplete example is visible', (WidgetTester tester) async {
+    await tester.pumpWidget(const example.AutocompleteExampleApp());
+    expect(find.text('RawAutocomplete Basic'), findsOneWidget);
+    expect(find.byType(TextFormField), findsOneWidget);
+
+    expect(find.text('aardvark'), findsNothing);
+    expect(find.text('bobcat'), findsNothing);
+    expect(find.text('chameleon'), findsNothing);
+  });
+
+  testWidgets('Options are shown correctly and selectable', (WidgetTester tester) async {
+    await tester.pumpWidget(const example.AutocompleteExampleApp());
+    await tester.tap(find.byType(TextFormField));
+    await tester.pump();
+
+    expect(find.byType(ListTile), findsNWidgets(3));
+    expect(find.text('aardvark'), findsOneWidget);
+    expect(find.text('bobcat'), findsOneWidget);
+    expect(find.text('chameleon'), findsOneWidget);
+
+    await tester.enterText(find.byType(TextFormField), 'b');
+    await tester.pump();
+
+    expect(find.byType(ListTile), findsOneWidget);
+    expect(find.text('aardvark'), findsNothing);
+    expect(find.text('bobcat'), findsOneWidget);
+    expect(find.text('chameleon'), findsNothing);
+
+    await tester.tap(find.text('bobcat'));
+    await tester.pump();
+
+    expect(find.byType(ListTile), findsNothing);
+    expect(find.descendant(
+      of: find.byType(TextFormField),
+      matching: find.text('bobcat'),
+    ), findsOneWidget);
+  });
+}

examples/api/test/widgets/autocomplete/raw_autocomplete.1_test.dart

@@ -0,0 +1,76 @@
+// Copyright 2014 The Flutter Authors. 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_api_samples/widgets/autocomplete/raw_autocomplete.1.dart' as example;
+import 'package:flutter_test/flutter_test.dart';
+
+void main() {
+  testWidgets('Autocomplete example is visible', (WidgetTester tester) async {
+    await tester.pumpWidget(const example.AutocompleteExampleApp());
+    expect(find.text('RawAutocomplete Custom Type'), findsOneWidget);
+    expect(find.byType(TextFormField), findsOneWidget);
+
+    expect(find.text('Alice'), findsNothing);
+    expect(find.text('Bob'), findsNothing);
+    expect(find.text('Charlie'), findsNothing);
+  });
+
+  testWidgets('Options are shown correctly and selectable', (WidgetTester tester) async {
+    await tester.pumpWidget(const example.AutocompleteExampleApp());
+    await tester.tap(find.byType(TextFormField));
+    await tester.pump();
+
+    expect(find.byType(ListTile), findsNWidgets(3));
+    expect(find.text('Alice'), findsOneWidget);
+    expect(find.text('Bob'), findsOneWidget);
+    expect(find.text('Charlie'), findsOneWidget);
+
+    await tester.enterText(find.byType(TextFormField), 'b');
+    await tester.pump();
+
+    expect(find.byType(ListTile), findsOneWidget);
+    expect(find.text('Alice'), findsNothing);
+    expect(find.text('Bob'), findsOneWidget);
+    expect(find.text('Charlie'), findsNothing);
+
+    await tester.tap(find.text('Bob'));
+    await tester.pump();
+
+    expect(find.byType(ListTile), findsNothing);
+    expect(find.descendant(
+      of: find.byType(TextFormField),
+      matching: find.text('Bob'),
+    ), findsOneWidget);
+  });
+
+  testWidgets('Finds users by email address', (WidgetTester tester) async {
+    await tester.pumpWidget(const example.AutocompleteExampleApp());
+
+    await tester.enterText(find.byType(TextFormField), '@');
+    await tester.pump();
+
+    expect(find.byType(ListTile), findsNWidgets(3));
+    expect(find.text('Alice'), findsOneWidget);
+    expect(find.text('Bob'), findsOneWidget);
+    expect(find.text('Charlie'), findsOneWidget);
+
+    await tester.enterText(find.byType(TextFormField), '@gmail');
+    await tester.pump();
+
+    expect(find.byType(ListTile), findsOneWidget);
+    expect(find.text('Alice'), findsNothing);
+    expect(find.text('Bob'), findsNothing);
+    expect(find.text('Charlie'), findsOneWidget);
+
+    await tester.tap(find.text('Charlie'));
+    await tester.pump();
+
+    expect(find.byType(ListTile), findsNothing);
+    expect(find.descendant(
+      of: find.byType(TextFormField),
+      matching: find.text('Charlie'),
+    ), findsOneWidget);
+  });
+}

examples/api/test/widgets/autocomplete/raw_autocomplete.2_test.dart

@@ -0,0 +1,86 @@
+// Copyright 2014 The Flutter Authors. 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_api_samples/widgets/autocomplete/raw_autocomplete.2.dart' as example;
+import 'package:flutter_test/flutter_test.dart';
+
+void main() {
+  testWidgets('Form is entirely visible and rejects invalid responses', (WidgetTester tester) async {
+    await tester.pumpWidget(const example.AutocompleteExampleApp());
+    expect(find.text('RawAutocomplete Form'), findsOneWidget);
+    expect(find.byType(TextFormField), findsNWidgets(2));
+    expect(find.byIcon(Icons.arrow_downward), findsOneWidget);
+    expect(find.text('This is a regular DropdownButtonFormField'), findsOneWidget);
+    expect(find.text('This is a regular TextFormField'), findsOneWidget);
+    expect(find.text('This is a RawAutocomplete!'), findsOneWidget);
+    expect(find.text('Submit'), findsOneWidget);
+
+    expect(find.text('One'), findsNothing);
+    expect(find.text('Two'), findsNothing);
+    expect(find.text('Free'), findsNothing);
+    expect(find.text('Four'), findsNothing);
+    expect(find.text('aardvark'), findsNothing);
+    expect(find.text('bobcat'), findsNothing);
+    expect(find.text('chameleon'), findsNothing);
+
+    expect(find.text('Must make a selection.'), findsNothing);
+    expect(find.text("Can't be empty."), findsNothing);
+    expect(find.text('Nothing selected.'), findsNothing);
+    await tester.tap(find.text('Submit'));
+    await tester.pump();
+    expect(find.text('Must make a selection.'), findsOneWidget);
+    expect(find.text("Can't be empty."), findsOneWidget);
+    expect(find.text('Nothing selected.'), findsOneWidget);
+  });
+
+  testWidgets('Form accepts valid inputs', (WidgetTester tester) async {
+    await tester.pumpWidget(const example.AutocompleteExampleApp());
+    await tester.tap(find.byIcon(Icons.arrow_downward));
+    await tester.pump();
+
+    expect(find.text('One'), findsOneWidget);
+    expect(find.text('Two'), findsOneWidget);
+    expect(find.text('Free'), findsOneWidget);
+    expect(find.text('Four'), findsOneWidget);
+    await tester.tap(find.text('Free'));
+    await tester.pump();
+    expect(find.text('Two'), findsNothing);
+    expect(find.text('Free'), findsOneWidget);
+
+    expect(find.text('This is a regular TextFormField'), findsOneWidget);
+    await tester.enterText(
+      find.ancestor(
+        of: find.text('This is a regular TextFormField'),
+        matching: find.byType(TextFormField),
+      ),
+      'regular user input',
+    );
+
+    await tester.tap(find.ancestor(
+      of: find.text('This is a RawAutocomplete!'),
+      matching: find.byType(TextFormField),
+    ));
+    await tester.pump();
+    expect(find.text('aardvark'), findsOneWidget);
+    expect(find.text('bobcat'), findsOneWidget);
+    expect(find.text('chameleon'), findsOneWidget);
+    await tester.tap(find.text('aardvark'));
+    await tester.pump();
+
+    expect(find.byType(AlertDialog), findsNothing);
+    await tester.tap(find.text('Submit'));
+    await tester.pump();
+    expect(find.byType(AlertDialog), findsOneWidget);
+    expect(find.text('Successfully submitted'), findsOneWidget);
+    expect(find.text('DropdownButtonFormField: "Free"'), findsOneWidget);
+    expect(find.text('TextFormField: "regular user input"'), findsOneWidget);
+    expect(find.text('RawAutocomplete: "aardvark"'), findsOneWidget);
+    expect(find.text('Ok'), findsOneWidget);
+
+    await tester.tap(find.text('Ok'));
+    await tester.pump();
+    expect(find.byType(AlertDialog), findsNothing);
+  });
+}

examples/api/test/widgets/autocomplete/raw_autocomplete.focus_node.0_test.dart

@@ -0,0 +1,66 @@
+// Copyright 2014 The Flutter Authors. 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_api_samples/widgets/autocomplete/raw_autocomplete.focus_node.0.dart' as example;
+import 'package:flutter_test/flutter_test.dart';
+
+void main() {
+  testWidgets('Autocomplete example is visible', (WidgetTester tester) async {
+    await tester.pumpWidget(const example.AutocompleteExampleApp());
+    expect(find.text('Split RawAutocomplete App'), findsOneWidget);
+    expect(find.byType(AppBar), findsOneWidget);
+    expect(find.byType(TextFormField), findsOneWidget);
+    expect(
+      find.descendant(
+        of: find.byType(AppBar),
+        matching: find.byType(TextFormField)
+      ),
+      findsOneWidget,
+    );
+
+    expect(find.byType(RawAutocomplete<String>), findsOneWidget);
+    expect(find.text('aardvark'), findsNothing);
+    expect(find.text('bobcat'), findsNothing);
+    expect(find.text('chameleon'), findsNothing);
+    expect(
+      find.ancestor(
+        matching: find.byType(AppBar),
+        of: find.byType(RawAutocomplete)
+      ),
+      findsNothing,
+    );
+  });
+
+  testWidgets('Options are shown correctly and selectable', (WidgetTester tester) async {
+    await tester.pumpWidget(const example.AutocompleteExampleApp());
+    await tester.tap(find.byType(TextFormField));
+    await tester.pump();
+
+    expect(find.byType(ListTile), findsNWidgets(3));
+    expect(find.text('aardvark'), findsOneWidget);
+    expect(find.text('bobcat'), findsOneWidget);
+    expect(find.text('chameleon'), findsOneWidget);
+
+    await tester.enterText(find.byType(TextFormField), 'b');
+    await tester.pump();
+
+    expect(find.byType(ListTile), findsOneWidget);
+    expect(find.text('aardvark'), findsNothing);
+    expect(find.text('bobcat'), findsOneWidget);
+    expect(find.text('chameleon'), findsNothing);
+
+    await tester.tap(find.text('bobcat'));
+    await tester.pump();
+
+    expect(find.byType(ListTile), findsNothing);
+    expect(
+      find.descendant(
+        of: find.byType(TextFormField),
+        matching: find.text('bobcat'),
+      ),
+      findsOneWidget,
+    );
+  });
+}