Simplify test suite & move CORS tests

dio/test/test_suite_test.dart

@@ -2,11 +2,7 @@ import 'package:dio/dio.dart';
 import 'package:dio_test/tests.dart';
 
 void main() {
-  Dio create() => Dio(BaseOptions(baseUrl: 'https://httpbun.com/'));
-
-  headerTests(create);
-  httpMethodTests(create);
-  redirectTests(create);
-  parameterTests(create);
-  statusCodeTests(create);
+  dioAdapterTestSuite(
+    () => Dio(BaseOptions(baseUrl: 'https://httpbun.com/')),
+  );
 }

dio/test/cors_tests.dart → dio_test/lib/src/test/cors_tests.dart

@@ -2,14 +2,16 @@ import 'package:dio/dio.dart';
 import 'package:dio_test/util.dart';
 import 'package:test/test.dart';
 
-// Test that browsers can correctly classify requests as
-// either "simple" or "preflighted". Reference:
-// https://developer.mozilla.org/en-US/docs/Web/HTTP/CORS#simple_requests
-void main() {
+/// Test that browsers can correctly classify requests as
+/// either "simple" or "preflighted". Reference:
+/// https://developer.mozilla.org/en-US/docs/Web/HTTP/CORS#simple_requests
+void corsTests(
+  Dio Function() create,
+) {
   late Dio dio;
 
-  setUpAll(() {
-    dio = Dio(BaseOptions(baseUrl: 'https://httpbun.com/'));
+  setUp(() {
+    dio = create();
   });
 
   group('CORS preflight', () {

dio_test/lib/src/test/suite.dart

@@ -0,0 +1,22 @@
+import 'package:dio/dio.dart';
+import 'package:dio_test/tests.dart';
+
+typedef TestSuiteFunction = void Function(
+  Dio Function() create,
+);
+
+const _tests = [
+  corsTests,
+  headerTests,
+  httpMethodTests,
+  parameterTests,
+  redirectTests,
+  statusCodeTests,
+  timeoutTests,
+];
+
+void dioAdapterTestSuite(
+  Dio Function() create, {
+  List<TestSuiteFunction> tests = _tests,
+}) =>
+    tests.forEach((test) => test(create));

dio_test/lib/tests.dart

@@ -1,6 +1,8 @@
+export 'src/test/cors_tests.dart';
 export 'src/test/headers_tests.dart';
 export 'src/test/http_method_tests.dart';
 export 'src/test/parameter_tests.dart';
 export 'src/test/redirect_tests.dart';
 export 'src/test/status_code_tests.dart';
+export 'src/test/suite.dart';
 export 'src/test/timeout_tests.dart';

plugins/http2_adapter/test/test_suite_test.dart

@@ -3,13 +3,8 @@ import 'package:dio_http2_adapter/dio_http2_adapter.dart';
 import 'package:dio_test/tests.dart';
 
 void main() {
-  Dio create() => Dio(BaseOptions(baseUrl: 'https://httpbun.com/'))
-    ..httpClientAdapter = Http2Adapter(ConnectionManager());
-
-  headerTests(create);
-  httpMethodTests(create);
-  redirectTests(create);
-  parameterTests(create);
-  statusCodeTests(create);
-  timeoutTests(create);
+  dioAdapterTestSuite(
+    () => Dio(BaseOptions(baseUrl: 'https://httpbun.com/'))
+      ..httpClientAdapter = Http2Adapter(ConnectionManager()),
+  );
 }