Add frontend subdirectory to project

frontend/test/chat_input_field_test.dart

@@ -0,0 +1,71 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:auto_gpt_flutter_client/views/chat/chat_input_field.dart';
+
+void main() {
+  // Test if the ChatInputField widget renders correctly
+  testWidgets('ChatInputField renders correctly', (WidgetTester tester) async {
+    await tester.pumpWidget(
+      MaterialApp(
+        home: Scaffold(
+          body: ChatInputField(
+            onSendPressed: () {},
+          ),
+        ),
+      ),
+    );
+
+    // Find the TextField widget
+    expect(find.byType(TextField), findsOneWidget);
+    // Find the send IconButton
+    expect(find.byIcon(Icons.send), findsOneWidget);
+  });
+
+  // Test if the TextField inside ChatInputField can accept and display input
+  testWidgets('ChatInputField text field accepts input',
+      (WidgetTester tester) async {
+    await tester.pumpWidget(
+      MaterialApp(
+        home: Scaffold(
+          body: ChatInputField(
+            onSendPressed: () {},
+          ),
+        ),
+      ),
+    );
+
+    // Type 'Hello' into the TextField
+    await tester.enterText(find.byType(TextField), 'Hello');
+    // Rebuild the widget with the new text
+    await tester.pump();
+
+    // Expect to find 'Hello' in the TextField
+    expect(find.text('Hello'), findsOneWidget);
+  });
+
+  // Test if the send button triggers the provided onSendPressed callback
+  testWidgets('ChatInputField send button triggers callback',
+      (WidgetTester tester) async {
+    bool onPressedCalled = false;
+
+    await tester.pumpWidget(
+      MaterialApp(
+        home: Scaffold(
+          body: ChatInputField(
+            onSendPressed: () {
+              onPressedCalled = true;
+            },
+          ),
+        ),
+      ),
+    );
+
+    // Tap the send IconButton
+    await tester.tap(find.byIcon(Icons.send));
+    // Rebuild the widget after the tap
+    await tester.pump();
+
+    // Check if the callback was called
+    expect(onPressedCalled, isTrue);
+  });
+}