add reaction_bubble_test

lib/src/reaction_bubble.dart

@@ -21,7 +21,7 @@ class ReactionBubble extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
-    final reactionAssets = StreamChatTheme.of(context).reactionIcons;
+    final reactionIcons = StreamChatTheme.of(context).reactionIcons;
     return Transform(
       transform: Matrix4.rotationY(reverse ? pi : 0),
       alignment: Alignment.center,
@@ -42,11 +42,11 @@ class ReactionBubble extends StatelessWidget {
             child: Wrap(
               children: [
                 ...reactions.map((reaction) {
-                  final reactionAsset = reactionAssets.firstWhere(
+                  final reactionIcon = reactionIcons.firstWhere(
-                    (reactionAsset) => reactionAsset.type == reaction.type,
+                    (r) => r.type == reaction.type,
                     orElse: () => null,
                   );
-                  if (reactionAsset == null) {
+                  if (reactionIcon == null) {
                     return Text(
                       '?',
                       style: TextStyle(
@@ -56,7 +56,7 @@ class ReactionBubble extends StatelessWidget {
                   }
 
                   return Icon(
-                    reactionAsset.iconData,
+                    reactionIcon.iconData,
                     size: 16,
                     color: StreamChatTheme.of(context).accentColor,
                   );

lib/src/reaction_picker.dart

@@ -1,5 +1,3 @@
-import 'dart:math';
-
 import 'package:flutter/material.dart';
 import 'package:stream_chat_flutter/src/reaction_bubble.dart';
 
@@ -25,7 +23,7 @@ class ReactionPicker extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
-    final reactionAssets = StreamChatTheme.of(context).reactionIcons;
+    final reactionIcons = StreamChatTheme.of(context).reactionIcons;
     return Stack(
       fit: StackFit.passthrough,
       children: [
@@ -39,7 +37,7 @@ class ReactionPicker extends StatelessWidget {
             crossAxisAlignment: CrossAxisAlignment.start,
             mainAxisAlignment: MainAxisAlignment.center,
             mainAxisSize: MainAxisSize.min,
-            children: reactionAssets.map((reactionIcon) {
+            children: reactionIcons.map((reactionIcon) {
               final ownReactionIndex = message.ownReactions?.indexWhere(
                       (reaction) => reaction.type == reactionIcon.type) ??
                   -1;

lib/src/stream_chat_theme.dart

@@ -142,7 +142,7 @@ class StreamChatThemeData {
     Widget Function(BuildContext, Channel) defaultChannelImage,
     Widget Function(BuildContext, User) defaultUserImage,
     IconThemeData primaryIconTheme,
-    List<ReactionIcon> reactionAssets,
+    List<ReactionIcon> reactionIcons,
   }) =>
       StreamChatThemeData(
         primaryColor: primaryColor ?? this.primaryColor,
@@ -211,7 +211,7 @@ class StreamChatThemeData {
                   this.otherMessageTheme.avatarTheme,
             ) ??
             this.otherMessageTheme,
-        reactionIcons: reactionAssets ?? this.reactionIcons,
+        reactionIcons: reactionIcons ?? this.reactionIcons,
       );
 
   /// Get the default Stream Chat theme

test/src/reaction_bubble_test.dart

@@ -0,0 +1,87 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:stream_chat_flutter/src/reaction_bubble.dart';
+import 'package:stream_chat_flutter/stream_chat_flutter.dart';
+
+void main() {
+  testWidgets(
+    'it should show no reactions',
+    (WidgetTester tester) async {
+      await tester.pumpWidget(
+        MaterialApp(
+          home: StreamChatTheme(
+            data: StreamChatThemeData(),
+            child: Container(
+              child: ReactionBubble(
+                reactions: [],
+                borderColor: Colors.black,
+                backgroundColor: Colors.white,
+              ),
+            ),
+          ),
+        ),
+      );
+
+      expect(find.byIcon(StreamIcons.thumbs_up_reaction), findsNothing);
+    },
+  );
+
+  testWidgets(
+    'it should show a thumb up',
+    (WidgetTester tester) async {
+      final themeData = ThemeData();
+      await tester.pumpWidget(
+        MaterialApp(
+          theme: themeData,
+          home: StreamChatTheme(
+            data: StreamChatThemeData.getDefaultTheme(themeData),
+            child: Container(
+              child: ReactionBubble(
+                reactions: [
+                  Reaction(
+                    type: 'thumbs_up',
+                  ),
+                ],
+                borderColor: Colors.black,
+                backgroundColor: Colors.white,
+              ),
+            ),
+          ),
+        ),
+      );
+
+      expect(find.byIcon(StreamIcons.thumbs_up_reaction), findsOneWidget);
+    },
+  );
+  testWidgets(
+    'it should show two reactions',
+    (WidgetTester tester) async {
+      final themeData = ThemeData();
+      await tester.pumpWidget(
+        MaterialApp(
+          theme: themeData,
+          home: StreamChatTheme(
+            data: StreamChatThemeData.getDefaultTheme(themeData),
+            child: Container(
+              child: ReactionBubble(
+                reactions: [
+                  Reaction(
+                    type: 'thumbs_up',
+                  ),
+                  Reaction(
+                    type: 'love',
+                  ),
+                ],
+                borderColor: Colors.black,
+                backgroundColor: Colors.white,
+              ),
+            ),
+          ),
+        ),
+      );
+
+      expect(find.byIcon(StreamIcons.thumbs_up_reaction), findsOneWidget);
+      expect(find.byIcon(StreamIcons.love_reaction), findsOneWidget);
+    },
+  );
+}