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// Copyright (c) 2015, 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.
library analyzer_cli.test.super_mixin;
import 'dart:io';
import 'package:analyzer_cli/src/driver.dart' show Driver, errorSink, outSink;
import 'package:path/path.dart' as path;
import 'package:test/test.dart';
import 'utils.dart';
/// End-to-end test for --supermixins.
/// Most super mixin tests are in Analyzer, but this verifies the option is
/// working and producing extra errors as expected.
/// Generally we don't want a lot of cases here as it requires spinning up a
/// full analysis context.
void main() {
group('--supermixins', () {
StringSink savedOutSink, savedErrorSink;
int savedExitCode;
setUp(() {
savedOutSink = outSink;
savedErrorSink = errorSink;
savedExitCode = exitCode;
outSink = new StringBuffer();
errorSink = new StringBuffer();
tearDown(() {
outSink = savedOutSink;
errorSink = savedErrorSink;
exitCode = savedExitCode;
test('produces errors when option absent', () async {
var testPath = path.join(testDirectory, 'data/super_mixin_example.dart');
new Driver().start([testPath]);
expect(exitCode, 3);
var stdout = outSink.toString();
"[error] The class 'C' cannot be used as a mixin because it extends a class other than Object"));
"[error] The class 'C' cannot be used as a mixin because it references 'super'"));
expect(stdout, contains('2 errors found.'));
expect(errorSink.toString(), '');
test('produces no errors when option present', () async {
var testPath = path.join(testDirectory, 'data/super_mixin_example.dart');
new Driver().start(['--supermixin', testPath]);
expect(exitCode, 0);
var stdout = outSink.toString();
expect(stdout, contains('No issues found'));