collection_providers_test: SSE Output in ResponseBody tested

test/providers/collection_providers_test.dart

@@ -1,5 +1,7 @@
+import 'dart:io';
 import 'package:apidash/screens/home_page/editor_pane/details_card/request_pane/request_body.dart';
 import 'package:apidash/widgets/editor.dart';
+import 'package:apidash/widgets/response_body.dart';
 import 'package:apidash_core/apidash_core.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_test/flutter_test.dart';
@@ -51,4 +53,69 @@ void main() async {
     // Verify that the Snackbar is shown
     expect(find.text('Switched to POST method'), findsOneWidget);
   }, skip: true);
+
+  testWidgets('SSE Output is rendered correctly in UI',
+      (WidgetTester tester) async {
+    HttpOverrides.global = null; //enable networking in flutter_test
+
+    final container = createContainer();
+    final notifier = container.read(collectionStateNotifierProvider.notifier);
+
+    const model = HttpRequestModel(
+      url: 'https://sse-demo.netlify.app/sse',
+      method: HTTPVerb.get,
+    );
+
+    notifier.addRequestModel(model, name: 'sseM');
+    final id = notifier.state!.entries.last.key;
+
+    //runAsync to enable user-code awaiting
+    await tester.runAsync(() async {
+      await notifier.sendRequest();
+      await Future.delayed(const Duration(seconds: 3));
+    });
+
+    final rm = notifier.getRequestModel(id)!;
+    cancelHttpRequest(rm.id);
+
+    final sseOutput = (rm.httpResponseModel?.sseOutput ?? [])
+        .map((e) => e.trim())
+        .where((e) => e.isNotEmpty)
+        .toList();
+
+    expect(sseOutput, isNotEmpty, reason: 'No SSE Output found');
+
+    // Render the widget
+    await tester.pumpWidget(
+      ProviderScope(
+        // ignore: deprecated_member_use
+        parent: container,
+        child: MaterialApp(
+          home: Scaffold(
+            body: ResponseBody(selectedRequestModel: rm),
+          ),
+        ),
+      ),
+    );
+    await tester.pumpAndSettle();
+
+    final textWidgets = tester.widgetList<Text>(find.byType(Text));
+    final matchingTextCount = textWidgets
+        .where((text) =>
+            text.data != null &&
+            text.data!.startsWith('data') &&
+            sseOutput.contains(text.data!.trim()))
+        .length;
+
+    expect(
+      matchingTextCount,
+      sseOutput.length,
+      reason: 'UI does not match all SSE output lines',
+    );
+
+    // Waits for all provider actions to complete before exit
+    await tester.runAsync(() async {
+      await Future.delayed(const Duration(seconds: 2));
+    });
+  });
 }