Add testing for image subdomains, expected i and t to be failed

test/domain_test.dart

@@ -0,0 +1,78 @@
+import 'dart:io';
+
+import 'package:dio/dio.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter_test/flutter_test.dart';
+
+// import 'package:concept_nhv/main.dart';
+// import 'package:path/path.dart';
+
+void main() {
+  // testWidgets('Counter increments smoke test', (WidgetTester tester) async {
+  //   // Build our app and trigger a frame.
+  //   await tester.pumpWidget(const App());
+
+  //   // Verify that our counter starts at 0.
+  //   expect(find.text('0'), findsOneWidget);
+  //   expect(find.text('1'), findsNothing);
+
+  //   // Tap the '+' icon and trigger a frame.
+  //   await tester.tap(find.byIcon(Icons.add));
+  //   await tester.pump();
+
+  //   // Verify that our counter has incremented.
+  //   expect(find.text('0'), findsNothing);
+  //   expect(find.text('1'), findsOneWidget);
+  // });
+
+  var dio = Dio(BaseOptions(
+    validateStatus: (status) {
+      // code 404 is expected in the following test
+      return status != null && status < 500;
+    },
+    receiveTimeout: const Duration(seconds: 3),
+  ));
+  // recent comic mid, as of 20241223
+  var testmid = '3166275';
+  group('test image subdomain status with mid $testmid', () {
+    var subdomain1 = ['t1', 't2', 't3', 't4', 't'];
+    var subdomain2 = ['i1', 'i2', 'i3', 'i4', 'i'];
+
+    for (var d in subdomain1) {
+      var testdomain = "$d.nhentai.net";
+      var testurl = "https://$d.nhentai.net/galleries/$testmid/thumb.webp";
+
+      // test dns and http request
+      test('test thumbnail subdomain $d', () {
+        debugPrint('test $testurl');
+        expectLater(InternetAddress.lookup(testdomain), completion(isNotEmpty));
+        expectLater(
+          dio.get(testurl),
+          completion(
+            predicate((Response response) {
+              debugPrint('response code: ${response.statusCode}');
+              return response.statusCode == 200;
+            }),
+          ),
+        );
+      });
+    }
+
+    for (var d in subdomain2) {
+      var testdomain = "$d.nhentai.net";
+      var testurl = "https://$d.nhentai.net/galleries/$testmid/1.webp";
+
+      // test dns and http request
+      test('test inner page subdomain $d', () {
+        debugPrint('test $testurl');
+        expectLater(InternetAddress.lookup(testdomain), completion(isNotEmpty));
+        expectLater(
+          dio.get(testurl),
+          completion(
+            predicate((Response response) => response.statusCode == 200),
+          ),
+        );
+      });
+    }
+  });
+}