test: add tests for MessageSearchListViewThemeData

packages/stream_chat_flutter/test/src/message_list_view_theme_test.dart

@@ -1,7 +1,8 @@
 import 'package:flutter/material.dart';
+import 'package:flutter_test/flutter_test.dart';
 import 'package:mocktail/mocktail.dart';
 import 'package:stream_chat_flutter/stream_chat_flutter.dart';
-import 'package:flutter_test/flutter_test.dart';
+
 import 'mocks.dart';
 
 class MockStreamChatClient extends Mock implements StreamChatClient {}

packages/stream_chat_flutter/test/src/message_search_list_view_theme_test.dart

@@ -0,0 +1,129 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:stream_chat_flutter/stream_chat_flutter.dart';
+
+import 'mocks.dart';
+
+void main() {
+  test('MessageSearchListViewThemeData copyWith, ==, hashCode basics', () {
+    expect(const MessageSearchListViewThemeData(),
+        const MessageSearchListViewThemeData().copyWith());
+    expect(const MessageSearchListViewThemeData().hashCode,
+        const MessageSearchListViewThemeData().copyWith().hashCode);
+  });
+
+  test(
+      '''Light MessageSearchListViewThemeData lerps completely to dark MessageSearchListViewThemeData''',
+      () {
+    expect(
+        const MessageSearchListViewThemeData().lerp(
+            _messageSearchListViewThemeDataControl,
+            _messageSearchListViewThemeDataControlDark,
+            1),
+        _messageSearchListViewThemeDataControlDark);
+  });
+
+  test(
+      '''Light MessageSearchListViewThemeData lerps halfway to dark MessageSearchListViewThemeData''',
+      () {
+    expect(
+        const MessageSearchListViewThemeData().lerp(
+            _messageSearchListViewThemeDataControl,
+            _messageSearchListViewThemeDataControlDark,
+            0.5),
+        _messageSearchListViewThemeDataControlHalfLerp);
+  });
+
+  test(
+      '''Dark MessageSearchListViewThemeData lerps completely to light MessageSearchListViewThemeData''',
+      () {
+    expect(
+        const MessageSearchListViewThemeData().lerp(
+            _messageSearchListViewThemeDataControlDark,
+            _messageSearchListViewThemeDataControl,
+            1),
+        _messageSearchListViewThemeDataControl);
+  });
+
+  test('Merging dark and light themes results in a dark theme', () {
+    expect(
+        _messageSearchListViewThemeDataControl
+            .merge(_messageSearchListViewThemeDataControlDark),
+        _messageSearchListViewThemeDataControlDark);
+  });
+
+  testWidgets(
+      '''Passing no MessageSearchListViewThemeData returns default light theme values''',
+      (WidgetTester tester) async {
+    late BuildContext _context;
+    await tester.pumpWidget(
+      MaterialApp(
+        builder: (context, child) => StreamChat(
+          client: MockClient(),
+          child: child,
+        ),
+        home: Builder(
+          builder: (BuildContext context) {
+            _context = context;
+            return Scaffold(
+              body: MessageSearchBloc(
+                child: MessageSearchListView(
+                  filters: Filter.in_('members', const ['test_id']),
+                ),
+              ),
+            );
+          },
+        ),
+      ),
+    );
+
+    final messageSearchListViewTheme = MessageSearchListViewTheme.of(_context);
+    expect(messageSearchListViewTheme.backgroundColor,
+        _messageSearchListViewThemeDataControl.backgroundColor);
+  });
+
+  testWidgets(
+      '''Passing no MessageSearchListViewThemeData returns default dark theme values''',
+      (WidgetTester tester) async {
+    late BuildContext _context;
+    await tester.pumpWidget(
+      MaterialApp(
+        builder: (context, child) => StreamChat(
+          client: MockClient(),
+          streamChatThemeData: StreamChatThemeData.dark(),
+          child: child,
+        ),
+        home: Builder(
+          builder: (BuildContext context) {
+            _context = context;
+            return Scaffold(
+              body: MessageSearchBloc(
+                child: MessageSearchListView(
+                  filters: Filter.in_('members', const ['test_id']),
+                ),
+              ),
+            );
+          },
+        ),
+      ),
+    );
+
+    final messageSearchListViewTheme = MessageSearchListViewTheme.of(_context);
+    expect(messageSearchListViewTheme.backgroundColor,
+        _messageSearchListViewThemeDataControlDark.backgroundColor);
+  });
+}
+
+final _messageSearchListViewThemeDataControl = MessageSearchListViewThemeData(
+  backgroundColor: ColorTheme.light().appBg,
+);
+
+const _messageSearchListViewThemeDataControlHalfLerp =
+    MessageSearchListViewThemeData(
+  backgroundColor: Color(0xff818384),
+);
+
+final _messageSearchListViewThemeDataControlDark =
+    MessageSearchListViewThemeData(
+  backgroundColor: ColorTheme.dark().appBg,
+);