pkg/linter/test/rules/use_test_throws_matchers_test.dart

// Copyright (c) 2023, 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/utilities/package_config_file_builder.dart';
import 'package:test_reflective_loader/test_reflective_loader.dart';

import '../rule_test_support.dart';

void main() {
  defineReflectiveSuite(() {
    defineReflectiveTests(UseTestThrowsMatchersTest);
  });
}

@reflectiveTest
class UseTestThrowsMatchersTest extends LintRuleTest {
  @override
  String get lintRule => LintNames.use_test_throws_matchers;

  @override
  void setUp() {
    super.setUp();
    var testApiPath = '$workspaceRootPath/test_api';
    var packageConfigBuilder = PackageConfigFileBuilder();
    packageConfigBuilder.add(name: 'test_api', rootPath: testApiPath);
    writeTestPackageConfig(packageConfigBuilder);
    newFile('$testApiPath/lib/src/frontend/expect.dart', r'''
void expect(dynamic actual, dynamic matcher) {}

Never fail(String message) {}
''');
    newFile('$testApiPath/lib/test_api.dart', r'''
export 'src/frontend/expect.dart';
''');
  }

  test_failInTry() async {
    await assertDiagnostics(
      r'''
import 'package:test_api/test_api.dart';

void f() {
  try {
    f();
    fail('fail');
  } catch (e) {}
}
''',
      [lint(74, 13)],
    );
  }

  test_failWithExpectInCatch() async {
    await assertNoDiagnostics(r'''
import 'package:test_api/test_api.dart';

void f() {
  try {
    f();
    fail('fail');
  } catch (e) {
    expect(e, null);
  } finally {
    print('hello');
  }
}
''');
  }

  test_failWithExpectInOnCatch() async {
    await assertNoDiagnostics(r'''
import 'package:test_api/test_api.dart';

void f() {
  try {
    f();
    fail('fail');
  } on Exception catch (e) {
    expect(e, null);
  } catch (e) {
    expect(e, null);
  }
}
''');
  }

  test_noFail() async {
    await assertNoDiagnostics(r'''
void f() {
  try {
    f();
  } catch (e) {}
}
''');
  }
}