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

// Copyright (c) 2019, 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/diagnostic/diagnostic.dart' as diag;
import 'package:test_reflective_loader/test_reflective_loader.dart';

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

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

@reflectiveTest
class DeprecatedMixinFunctionTest extends PubPackageResolutionTest {
  test_class_core() async {
    await assertErrorsInCode(
      '''
class A extends Object with Function {}
''',
      [error(diag.classUsedAsMixin, 28, 8)],
    );
  }

  test_class_core_language219() async {
    await assertErrorsInCode(
      '''
// @dart = 2.19
class A extends Object with Function {}
''',
      [error(diag.deprecatedMixinFunction, 44, 8)],
    );
  }

  test_class_core_language219_viaTypedef() async {
    await assertErrorsInCode(
      '''
// @dart = 2.19
typedef F = Function;
class A extends Object with F {}
''',
      [error(diag.deprecatedMixinFunction, 66, 1)],
    );
  }

  test_class_local() async {
    await assertErrorsInCode(
      '''
mixin Function {}
class A extends Object with Function {}
''',
      [error(diag.builtInIdentifierAsTypeName, 6, 8)],
    );
  }

  test_class_local_language219() async {
    await assertErrorsInCode(
      '''
// @dart = 2.19
mixin Function {}
class A extends Object with Function {}
''',
      [error(diag.builtInIdentifierAsTypeName, 22, 8)],
    );
  }

  test_classAlias_core_language219() async {
    await assertErrorsInCode(
      '''
// @dart = 2.19
class A = Object with Function;
''',
      [error(diag.deprecatedMixinFunction, 38, 8)],
    );
  }

  test_classAlias_core_language219_viaTypedef() async {
    await assertErrorsInCode(
      '''
// @dart = 2.19
typedef F = Function;
class A = Object with F;
''',
      [error(diag.deprecatedMixinFunction, 60, 1)],
    );
  }
}