pkg/analyzer/test/src/diagnostics/deprecated_extends_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/error/codes.dart';
import 'package:test_reflective_loader/test_reflective_loader.dart';

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

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

@reflectiveTest
class DeprecatedExtendsFunctionTest extends PubPackageResolutionTest {
  test_core() async {
    await assertErrorsInCode('''
class A extends Function {}
''', [
      error(
          CompileTimeErrorCode.FINAL_CLASS_EXTENDED_OUTSIDE_OF_LIBRARY, 16, 8),
    ]);
  }

  test_core_language219() async {
    await assertErrorsInCode('''
// @dart = 2.19
class A extends Function {}
''', [
      error(WarningCode.DEPRECATED_EXTENDS_FUNCTION, 32, 8),
    ]);
  }

  test_core_language219_viaTypedef() async {
    await assertErrorsInCode('''
// @dart = 2.19
typedef F = Function;
class A extends F {}
''', [
      error(WarningCode.DEPRECATED_EXTENDS_FUNCTION, 54, 1),
    ]);
  }

  test_local_language219() async {
    await assertErrorsInCode('''
// @dart = 2.19
class Function {}
class A extends Function {}
''', [
      error(CompileTimeErrorCode.BUILT_IN_IDENTIFIER_AS_TYPE_NAME, 22, 8),
    ]);
  }
}