test: add tests for ChannelListViewThemeData

packages/stream_chat_flutter/test/src/channel_list_view_theme_test.dart

@@ -0,0 +1,119 @@
+import 'package:flutter/material.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';
+
+void main() {
+  test('ChannelListViewThemeData copyWith, ==, hashCode basics', () {
+    expect(const ChannelListViewThemeData(),
+        const ChannelListViewThemeData().copyWith());
+  });
+
+  test(
+      '''List ChannelListViewThemeData lerps completely to dark ChannelListViewThemeData''',
+      () {
+    expect(
+        const ChannelListViewThemeData().lerp(_channelListViewThemeDataControl,
+            _channelListViewThemeDataControlDark, 1),
+        _channelListViewThemeDataControlDark);
+  });
+
+  test(
+      '''Light ChannelListViewThemeData lerps halfway to dark ChannelListViewThemeData''',
+      () {
+    expect(
+        const ChannelListViewThemeData().lerp(_channelListViewThemeDataControl,
+            _channelListViewThemeDataControlDark, 0.5),
+        _channelListViewThemeDataControlHalfLerp);
+  });
+
+  test(
+      '''Dark ChannelListViewThemeData lerps completely to light ChannelListViewThemeData''',
+      () {
+    expect(
+        const ChannelListViewThemeData().lerp(
+            _channelListViewThemeDataControlDark,
+            _channelListViewThemeDataControl,
+            1),
+        _channelListViewThemeDataControl);
+  });
+
+  test('Merging dark and light themes results in a dark theme', () {
+    expect(
+        _channelListViewThemeDataControl
+            .merge(_channelListViewThemeDataControlDark),
+        _channelListViewThemeDataControlDark);
+  });
+
+  testWidgets(
+      'Passing no ChannelListViewThemeData 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: StreamChannel(
+                channel: MockChannel(),
+                child: const ChannelListView(),
+              ),
+            );
+          },
+        ),
+      ),
+    );
+
+    final channelListViewTheme = ChannelListViewTheme.of(_context);
+    expect(channelListViewTheme.backgroundColor,
+        _channelListViewThemeDataControl.backgroundColor);
+  });
+
+  testWidgets(
+      'Passing no ChannelListViewThemeData 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: StreamChannel(
+                channel: MockChannel(),
+                child: const MessageListView(),
+              ),
+            );
+          },
+        ),
+      ),
+    );
+
+    final channelListViewTheme = ChannelListViewTheme.of(_context);
+    expect(channelListViewTheme.backgroundColor,
+        _channelListViewThemeDataControlDark.backgroundColor);
+  });
+}
+
+final _channelListViewThemeDataControl = ChannelListViewThemeData(
+  backgroundColor: ColorTheme.light().appBg,
+);
+
+const _channelListViewThemeDataControlHalfLerp = ChannelListViewThemeData(
+  backgroundColor: Color(0xff818384),
+);
+
+final _channelListViewThemeDataControlDark = ChannelListViewThemeData(
+  backgroundColor: ColorTheme.dark().appBg,
+);

packages/stream_chat_flutter/test/src/message_list_view_theme_test.dart

@@ -108,8 +108,6 @@ void main() {
     expect(messageListViewTheme.backgroundColor,
         _messageListViewThemeDataControlDark.backgroundColor);
   });
-
-  // default dark theme values
 }
 
 final _messageListViewThemeDataControl = MessageListViewThemeData(