pkg/analyzer/test/src/diagnostics/extension_override_with_cascade_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(ExtensionOverrideWithCascadeTest);
  });
}

@reflectiveTest
class ExtensionOverrideWithCascadeTest extends PubPackageResolutionTest {
  test_getter() async {
    await assertErrorsInCode(
      '''
extension E on int {
  int get g => 0;
}
f() {
  E(3)..g..g;
}
''',
      [error(diag.extensionOverrideWithCascade, 49, 1)],
    );
    assertTypeDynamic(findNode.extensionOverride('E('));
  }

  test_method() async {
    await assertErrorsInCode(
      '''
extension E on int {
  void m() {}
}
f() {
  E(3)..m()..m();
}
''',
      [error(diag.extensionOverrideWithCascade, 45, 1)],
    );
    assertTypeDynamic(findNode.extensionOverride('E('));
  }

  test_setter() async {
    await assertErrorsInCode(
      '''
extension E on int {
  set s(int i) {}
}
f() {
  E(3)..s = 1..s = 2;
}
''',
      [error(diag.extensionOverrideWithCascade, 49, 1)],
    );
    assertTypeDynamic(findNode.extensionOverride('E('));
  }
}