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

// Copyright (c) 2022, 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(MixinSuperClassConstraintDeferredClassTest);
  });
}

@reflectiveTest
class MixinSuperClassConstraintDeferredClassTest
    extends PubPackageResolutionTest {
  test_error_onClause_deferredClass() async {
    await assertErrorsInCode(r'''
import 'dart:math' deferred as math;
mixin M on math.Random {}
''', [
      error(CompileTimeErrorCode.MIXIN_SUPER_CLASS_CONSTRAINT_DEFERRED_CLASS,
          48, 11),
    ]);
    var mathImport = findElement.import('dart:math');
    var randomElement = mathImport.importedLibrary!.getType('Random')!;

    var element = findElement.mixin('M');
    assertElementTypes(element.superclassConstraints, ['Random']);

    var typeRef = findNode.namedType('Random {}');
    assertNamedType(typeRef, randomElement, 'Random',
        expectedPrefix: mathImport.prefix?.element);
  }
}