Mike Fairhurst
f846d0e7ea
Change-Id: I58d1ca58e6d630aee928c6a7cb7fc97822a3be22 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/161449 Auto-Submit: Mike Fairhurst <mfairhurst@google.com> Commit-Queue: Konstantin Shcheglov <scheglov@google.com> Reviewed-by: Konstantin Shcheglov <scheglov@google.com>
72 lines
2.5 KiB
Dart
72 lines
2.5 KiB
Dart
// Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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import 'dart:convert';
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import 'dart:io' show exitCode, stdin;
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import 'package:analyzer/error/error.dart';
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typedef BatchRunnerHandler = Future<ErrorSeverity> Function(List<String> args);
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/// Provides a framework to read command line options from stdin and feed them
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/// to a callback.
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class BatchRunner {
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final StringSink outSink;
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final StringSink errorSink;
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BatchRunner(this.outSink, this.errorSink);
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/// Run the tool in 'batch' mode, receiving command lines through stdin and
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/// returning pass/fail status through stdout. This feature is intended for
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/// use in unit testing.
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void runAsBatch(List<String> sharedArgs, BatchRunnerHandler handler) {
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outSink.writeln('>>> BATCH START');
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var stopwatch = Stopwatch();
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stopwatch.start();
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var testsFailed = 0;
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var totalTests = 0;
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var batchResult = ErrorSeverity.NONE;
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// Read line from stdin.
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var cmdLine = stdin.transform(utf8.decoder).transform(LineSplitter());
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cmdLine.listen((String line) async {
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// TODO(brianwilkerson) Determine whether this await is necessary.
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await null;
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// Maybe finish.
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if (line.isEmpty) {
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var time = stopwatch.elapsedMilliseconds;
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outSink.writeln(
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'>>> BATCH END (${totalTests - testsFailed}/$totalTests) ${time}ms');
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exitCode = batchResult.ordinal;
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}
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// Prepare arguments.
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var lineArgs = line.split(RegExp('\\s+'));
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var args = <String>[];
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args.addAll(sharedArgs);
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args.addAll(lineArgs);
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args.remove('-b');
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args.remove('--batch');
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// Analyze single set of arguments.
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try {
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totalTests++;
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var result = await handler(args);
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var resultPass = result != ErrorSeverity.ERROR;
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if (!resultPass) {
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testsFailed++;
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}
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batchResult = batchResult.max(result);
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// Write stderr end token and flush.
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errorSink.writeln('>>> EOF STDERR');
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var resultPassString = resultPass ? 'PASS' : 'FAIL';
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outSink.writeln(
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'>>> TEST $resultPassString ${stopwatch.elapsedMilliseconds}ms');
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} catch (e, stackTrace) {
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errorSink.writeln(e);
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errorSink.writeln(stackTrace);
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errorSink.writeln('>>> EOF STDERR');
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outSink.writeln('>>> TEST CRASH');
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}
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});
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}
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}
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