pkg/analyzer/test/src/diagnostics/on_repeated_test.dart

// 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:analyzer/src/error/codes.dart';
import 'package:test_reflective_loader/test_reflective_loader.dart';

import '../dart/resolution/context_collection_resolution.dart';

main() {
  defineReflectiveSuite(() {
    defineReflectiveTests(OnRepeatedTest);
  });
}

@reflectiveTest
class OnRepeatedTest extends PubPackageResolutionTest {
  test_2times() async {
    await assertErrorsInCode(r'''
class A {}
mixin M on A, A {}
''', [
      error(CompileTimeErrorCode.ON_REPEATED, 25, 1),
    ]);
  }

  test_2times_augmentation() async {
    var a = newFile('$testPackageLibPath/a.dart', r'''
import augment 'b.dart';

class A {}
mixin M on A {}
''');

    var b = newFile('$testPackageLibPath/b.dart', r'''
augment library 'a.dart';

augment mixin M on A {}
''');

    await assertErrorsInFile2(a, []);

    await assertErrorsInFile2(b, [
      error(CompileTimeErrorCode.ON_REPEATED, 46, 1),
    ]);
  }

  test_2times_viaTypeAlias() async {
    await assertErrorsInCode(r'''
class A {}
typedef B = A;
mixin M on A, B {}
''', [
      error(CompileTimeErrorCode.ON_REPEATED, 40, 1),
    ]);
  }
}