super_parameters test for prefer_equal_for_default_values (#3160)

* super_parameters test

* + test

* fmt

test/rules/all.dart

@@ -29,6 +29,8 @@ import 'prefer_const_constructors_in_immutables.dart'
 import 'prefer_const_literals_to_create_immutables.dart'
     as prefer_const_literals_to_create_immutables;
 import 'prefer_contains.dart' as prefer_contains;
+import 'prefer_equal_for_default_values.dart'
+    as prefer_equal_for_default_values;
 import 'prefer_generic_function_type_aliases.dart'
     as prefer_generic_function_type_aliases;
 import 'prefer_spread_collections.dart' as prefer_spread_collections;
@@ -59,6 +61,7 @@ void main() {
   prefer_const_constructors_in_immutables.main();
   prefer_const_literals_to_create_immutables.main();
   prefer_contains.main();
+  prefer_equal_for_default_values.main();
   prefer_generic_function_type_aliases.main();
   prefer_spread_collections.main();
   super_goes_last.main();

test/rules/prefer_equal_for_default_values.dart

@@ -0,0 +1,39 @@
+// Copyright (c) 2022, the Dart project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+import 'package:test_reflective_loader/test_reflective_loader.dart';
+
+import '../rule_test_support.dart';
+
+main() {
+  defineReflectiveSuite(() {
+    defineReflectiveTests(PreferEqualForDefaultValuesTest);
+  });
+}
+
+@reflectiveTest
+class PreferEqualForDefaultValuesTest extends LintRuleTest {
+  @override
+  List<String> get experiments => [
+        EnableString.super_parameters,
+      ];
+
+  @override
+  String get lintRule => 'prefer_equal_for_default_values';
+
+  test_super() async {
+    await assertDiagnostics(r'''
+class A {
+  String? a;
+  A({this.a});
+}
+
+class B extends A {
+  B({super.a : ''});
+}
+''', [
+      lint('prefer_equal_for_default_values', 74, 1),
+    ]);
+  }
+}