pkg/analyzer/test/src/diagnostics/undefined_referenced_parameter_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(UndefinedReferencedParameterTest);
  });
}

@reflectiveTest
class UndefinedReferencedParameterTest extends PubPackageResolutionTest {
  @override
  void setUp() {
    super.setUp();
    writeTestPackageConfigWithMeta();
  }

  test_method() async {
    await assertErrorsInCode(r'''
import 'package:meta/meta.dart';

class Foo {
  @UseResult.unless(parameterDefined: 'undef')
  int foo([int? value]) => value ?? 0;
}
''', [
      error(WarningCode.UNDEFINED_REFERENCED_PARAMETER, 84, 7),
    ]);
  }

  test_method_parameterDefined() async {
    await assertNoErrorsInCode(r'''
import 'package:meta/meta.dart';

class Foo {
  @UseResult.unless(parameterDefined: 'value')
  int foo([int? value]) => value ?? 0;
}
''');
  }

  test_topLevelFunction() async {
    await assertErrorsInCode(r'''
import 'package:meta/meta.dart';

@UseResult.unless(parameterDefined: 'undef')
int foo([int? value]) => value ?? 0;
''', [
      error(WarningCode.UNDEFINED_REFERENCED_PARAMETER, 70, 7),
    ]);
  }
}