diff --git a/test/widgets/codegen_previewer_test.dart b/test/widgets/codegen_previewer_test.dart
new file mode 100644
index 00000000..c5db6728
--- /dev/null
+++ b/test/widgets/codegen_previewer_test.dart
@@ -0,0 +1,102 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:apidash/widgets/codegen_previewer.dart';
+import 'package:apidash/consts.dart';
+import '../test_consts.dart';
+
+void main() {
+  String code = r'''import 'package:http/http.dart' as http;
+
+void main() async {
+  var uri = Uri.parse('https://api.foss42.com/country/codes');
+
+  final response = await http.get(uri);
+
+  if (response.statusCode == 200) {
+    print('Status Code: ${response.statusCode}');
+    print('Result: ${response.body}');
+  }
+  else{
+    print('Error Status Code: ${response.statusCode}');
+  }
+}
+''';
+  testWidgets('Testing for CodeGen Previewer', (tester) async {
+    await tester.pumpWidget(
+      MaterialApp(
+        title: 'CodeGen Previewer',
+        theme: kThemeDataLight,
+        home: Scaffold(
+            body: Column(
+          children: [
+            Expanded(
+              child: CodeGenPreviewer(
+                code: code,
+                theme: kLightCodeTheme,
+                language: 'dart',
+                textStyle: kCodeStyle,
+              ),
+            ),
+          ],
+        )),
+      ),
+    );
+
+    await tester.pumpAndSettle();
+
+    expect(find.textContaining('Error Status Code', findRichText: true),
+        findsOneWidget);
+  });
+  testWidgets('Testing for View Code Pane', (tester) async {
+    await tester.pumpWidget(
+      MaterialApp(
+        title: 'ViewCodePane',
+        theme: kThemeDataDark,
+        home: Scaffold(
+            body: Column(
+          children: [
+            Expanded(
+              child: ViewCodePane(
+                code: code,
+              ),
+            ),
+          ],
+        )),
+      ),
+    );
+
+    await tester.pumpAndSettle();
+    expect(find.text('Code'), findsOneWidget);
+
+    expect(find.textContaining('Error Status Code', findRichText: true),
+        findsOneWidget);
+    expect(find.byIcon(Icons.content_copy), findsOneWidget);
+    expect(find.text('Copy'), findsOneWidget);
+  });
+  testWidgets('Testing for View Code Pane Light theme', (tester) async {
+    await tester.pumpWidget(
+      MaterialApp(
+        title: 'ViewCodePane',
+        theme: kThemeDataLight,
+        home: Scaffold(
+            body: Column(
+          children: [
+            Expanded(
+              child: ViewCodePane(
+                code: code,
+              ),
+            ),
+          ],
+        )),
+      ),
+    );
+
+    await tester.pumpAndSettle();
+    expect(find.text('Code'), findsOneWidget);
+
+    expect(find.textContaining('Error Status Code', findRichText: true),
+        findsOneWidget);
+    expect(find.byIcon(Icons.content_copy), findsOneWidget);
+    expect(find.text('Copy'), findsOneWidget);
+  });
+}