migrate test to reflective_test_loader style

Author: a14n

test/integration/use_string_in_part_of_directives.dart

@@ -49,8 +49,6 @@ import 'integration/unnecessary_string_escapes.dart'
     as unnecessary_string_escapes;
 import 'integration/use_build_context_synchronously.dart'
     as use_build_context_synchronously;
-import 'integration/use_string_in_part_of_directives.dart'
-    as use_string_in_part_of_directives;
 import 'mocks.dart';
 import 'test_constants.dart';
 
@@ -203,7 +201,6 @@ void ruleTests() {
     prefer_mixin.main();
     use_build_context_synchronously.main();
     prefer_const_constructors.main();
-    use_string_in_part_of_directives.main();
   });
 }
 

test/integration_test.dart

@@ -237,8 +237,10 @@ class PubPackageResolutionTest extends _ContextResolutionTest {
   /// The path that is not in [workspaceRootPath], contains external packages.
   String get packagesRootPath => '/packages';
 
+  String get testFileName => 'test.dart';
+
   @override
-  String get testFilePath => '$testPackageLibPath/test.dart';
+  String get testFilePath => '$testPackageLibPath/$testFileName';
 
   String? get testPackageLanguageVersion => null;
 

test/rule_test_support.dart

@@ -0,0 +1,46 @@
+// Copyright (c) 2021, 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(UseStringInPartOfDirectivesTest);
+  });
+}
+
+@reflectiveTest
+class UseStringInPartOfDirectivesTest extends LintRuleTest {
+  @override
+  bool get addMetaPackageDep => true;
+
+  @override
+  String get lintRule => 'use_string_in_part_of_directives';
+
+  test_part_of_with_string() async {
+    newFile2('$testPackageRootPath/lib/lib.dart', '''
+part '$testFileName';
+''');
+    await assertNoDiagnostics(r'''
+part of 'lib.dart';
+''');
+  }
+
+  test_part_of_with_library_name() async {
+    newFile2('$testPackageRootPath/lib/lib.dart', '''
+library lib;
+part '$testFileName';
+''');
+    await assertDiagnostics(
+      r'''
+part of lib;
+''',
+      [
+        lint('use_string_in_part_of_directives', 0, 12),
+      ],
+    );
+  }
+}