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

// Copyright (c) 2020, 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/dart/ast/ast.dart';
import 'package:analyzer/dart/ast/visitor.dart';
import 'package:analyzer/src/error/codes.dart';
import 'package:analyzer/src/lint/linter.dart';
import 'package:analyzer/src/test_utilities/lint_registration_mixin.dart';
import 'package:analyzer_utilities/testing/test_support.dart';
import 'package:test_reflective_loader/test_reflective_loader.dart';

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

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

@reflectiveTest
class UnignorableIgnoreTest extends PubPackageResolutionTest
    with LintRegistrationMixin {
  @override
  Future<void> tearDown() {
    unregisterLintRules();
    return super.tearDown();
  }

  test_file_lowerCase() async {
    writeTestPackageAnalysisOptionsFile(
      analysisOptionsContent(unignorableNames: ['undefined_annotation']),
    );
    await assertErrorsInCode(
      r'''
// ignore_for_file: undefined_annotation
@x int a = 0;
''',
      [error(CompileTimeErrorCode.UNDEFINED_ANNOTATION, 41, 2)],
    );
  }

  test_file_upperCase() async {
    writeTestPackageAnalysisOptionsFile(
      analysisOptionsContent(unignorableNames: ['UNDEFINED_ANNOTATION']),
    );
    await assertErrorsInCode(
      r'''
// ignore_for_file: UNDEFINED_ANNOTATION
@x int a = 0;
''',
      [error(CompileTimeErrorCode.UNDEFINED_ANNOTATION, 41, 2)],
    );
  }

  test_line() async {
    writeTestPackageAnalysisOptionsFile(
      analysisOptionsContent(unignorableNames: ['undefined_annotation']),
    );
    await assertErrorsInCode(
      r'''
// ignore: undefined_annotation
@x int a = 0;
''',
      [error(CompileTimeErrorCode.UNDEFINED_ANNOTATION, 32, 2)],
    );
  }

  test_lint() async {
    writeTestPackageAnalysisOptionsFile(
      analysisOptionsContent(
        unignorableNames: ['avoid_int'],
        rules: ['avoid_int'],
      ),
    );
    var avoidIntRule = _AvoidIntRule();
    registerLintRule(avoidIntRule);
    await assertErrorsInCode(
      r'''
// ignore: avoid_int
int a = 0;
''',
      [error(avoidIntRule.lintCode, 21, 3)],
    );
  }
}

class _AvoidIntRule extends LintRule {
  static const LintCode code = LintCode(
    'avoid_int',
    'Avoid int.',
    correctionMessage: 'Try avoiding int.',
  );

  _AvoidIntRule() : super(name: 'avoid_int', description: '');

  @override
  LintCode get lintCode => code;

  @override
  void registerNodeProcessors(
    NodeLintRegistry registry,
    LinterContext context,
  ) {
    var visitor = _AvoidIntVisitor(this);
    registry.addNamedType(this, visitor);
  }
}

class _AvoidIntVisitor extends SimpleAstVisitor {
  final LintRule rule;

  _AvoidIntVisitor(this.rule);

  @override
  void visitNamedType(NamedType node) {
    if (node.name2.lexeme == 'int') {
      rule.reportAtToken(node.name2);
    }
  }
}