pkg/analyzer/test/src/diagnostics/import_internal_library_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_testing/package_config_file_builder.dart';
import 'package:test_reflective_loader/test_reflective_loader.dart';

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

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

@reflectiveTest
class ImportInternalLibraryTest extends PubPackageResolutionTest {
  test_internal() async {
    // Note, in these error cases we may generate an UNUSED_IMPORT hint, while
    // we could prevent the hint from being generated by testing the import
    // directive for the error, this is such a minor corner case that we don't
    // think we should add the additional computation time to figure out such
    // cases.
    await resolveTestCodeWithDiagnostics(r'''
import 'dart:_internal';
//     ^^^^^^^^^^^^^^^^
// [diag.importInternalLibrary] The library 'dart:_internal' is internal and can't be imported.
// [diag.unusedImport] Unused import: 'dart:_internal'.
''');
  }

  test_wasm_fromJs() async {
    var packageRootPath = _newPackage('js');
    var file = getFile('$packageRootPath/lib/js.dart');
    await resolveFileWithDiagnostics(file, '''
import 'dart:_wasm';
//     ^^^^^^^^^^^^
// [diag.unusedImport] Unused import: 'dart:_wasm'.
''');
  }

  test_wasm_fromTest() async {
    await resolveTestCodeWithDiagnostics(r'''
import 'dart:_wasm';
//     ^^^^^^^^^^^^
// [diag.importInternalLibrary] The library 'dart:_wasm' is internal and can't be imported.
// [diag.unusedImport] Unused import: 'dart:_wasm'.
''');
  }

  test_wasm_fromUi() async {
    var packageRootPath = _newPackage('ui');
    var file = getFile('$packageRootPath/lib/ui.dart');
    await resolveFileWithDiagnostics(file, '''
import 'dart:_wasm';
//     ^^^^^^^^^^^^
// [diag.unusedImport] Unused import: 'dart:_wasm'.
''');
  }

  String _newPackage(String packageName) {
    var packageRootPath = '$workspaceRootPath/$packageName';
    var builder = PackageConfigFileBuilder();
    builder.add(
      name: packageName,
      rootFolder: getFolder(packageRootPath),
      languageVersion: testPackageLanguageVersion,
    );
    writePackageConfig(packageRootPath, builder);
    return packageRootPath;
  }
}