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

// Copyright (c) 2019, 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:analyzer/src/generated/engine.dart';
import 'package:test_reflective_loader/test_reflective_loader.dart';

import '../dart/resolution/driver_resolution.dart';

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

@reflectiveTest
class ConstSpreadExpectedListOrSetTest extends DriverResolutionTest {
  @override
  AnalysisOptionsImpl get analysisOptions => AnalysisOptionsImpl()
    ..enabledExperiments = ['control-flow-collections', 'spread-collections'];

  test_const_listInt() async {
    await assertErrorsInCode('''
const dynamic a = 5;
var b = const <int>[...a];
''', [CompileTimeErrorCode.CONST_SPREAD_EXPECTED_LIST_OR_SET]);
  }

  test_const_listList() async {
    await assertNoErrorsInCode('''
const dynamic a = [5];
var b = const <int>[...a];
''');
  }

  test_const_listMap() async {
    await assertErrorsInCode('''
const dynamic a = <int, int>{0: 1};
var b = const <int>[...a];
''', [CompileTimeErrorCode.CONST_SPREAD_EXPECTED_LIST_OR_SET]);
  }

  test_const_listNull() async {
    await assertErrorsInCode('''
const dynamic a = null;
var b = const <int>[...a];
''', [CompileTimeErrorCode.CONST_SPREAD_EXPECTED_LIST_OR_SET]);
  }

  test_const_listNull_nullable() async {
    await assertNoErrorsInCode('''
const dynamic a = null;
var b = const <int>[...?a];
''');
  }

  test_const_listSet() async {
    await assertNoErrorsInCode('''
const dynamic a = <int>{5};
var b = const <int>[...a];
''');
  }

  test_const_setInt() async {
    await assertErrorsInCode('''
const dynamic a = 5;
var b = const <int>{...a};
''', [CompileTimeErrorCode.CONST_SPREAD_EXPECTED_LIST_OR_SET]);
  }

  test_const_setList() async {
    await assertNoErrorsInCode('''
const dynamic a = <int>[5];
var b = const <int>{...a};
''');
  }

  test_const_setMap() async {
    await assertErrorsInCode('''
const dynamic a = <int, int>{1: 2};
var b = const <int>{...a};
''', [CompileTimeErrorCode.CONST_SPREAD_EXPECTED_LIST_OR_SET]);
  }

  test_const_setNull() async {
    await assertErrorsInCode('''
const dynamic a = null;
var b = const <int>{...a};
''', [CompileTimeErrorCode.CONST_SPREAD_EXPECTED_LIST_OR_SET]);
  }

  test_const_setNull_nullable() async {
    await assertNoErrorsInCode('''
const dynamic a = null;
var b = const <int>{...?a};
''');
  }

  test_const_setSet() async {
    await assertNoErrorsInCode('''
const dynamic a = <int>{5};
var b = const <int>{...a};
''');
  }

  test_nonConst_listInt() async {
    await assertNoErrorsInCode('''
const dynamic a = 5;
var b = <int>[...a];
''');
  }

  test_nonConst_setInt() async {
    await assertNoErrorsInCode('''
const dynamic a = 5;
var b = <int>{...a};
''');
  }
}