pkg/linter/test/rules/library_prefixes_test.dart

// Copyright (c) 2024, 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/error/error.dart';
import 'package:test_reflective_loader/test_reflective_loader.dart';

import '../rule_test_support.dart';

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

@reflectiveTest
class LibraryPrefixesTest extends LintRuleTest {
  @override
  List<DiagnosticCode> get ignoredErrorCodes => [
    WarningCode.UNUSED_IMPORT,
    WarningCode.UNUSED_LOCAL_VARIABLE,
  ];

  @override
  String get lintRule => LintNames.library_prefixes;

  test_camelCase() async {
    await assertDiagnostics(
      r'''
import 'dart:async' as dartAsync;
''',
      [lint(23, 9)],
    );
  }

  test_leadingDollar() async {
    await assertNoDiagnostics(r'''
import 'dart:async' as $async;
''');
  }

  test_leadingUnderscore() async {
    await assertNoDiagnostics(r'''
import 'dart:async' as _async;
''');
  }

  test_leadingUnderscore_withNumbers() async {
    await assertNoDiagnostics(r'''
import 'dart:async' as _i1;
''');
  }

  test_numberWithLeadingUnderscore() async {
    await assertDiagnostics(
      r'''
import 'dart:async' as _1;
''',
      [lint(23, 2)],
    );
  }

  test_wildcard() async {
    await assertNoDiagnostics(r'''
import 'dart:async' as _;
''');
  }

  test_wildcard_preWildCards() async {
    await assertDiagnostics(
      r'''
// @dart = 3.4
// (pre wildcard-variables)

import 'dart:async' as _;
''',
      [lint(67, 1)],
    );
  }
}