Robert Nystrom
a323c55162
Change-Id: I4d492a63a41880ef8cd69321372a4853825b9efd Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/426321 Reviewed-by: Liam Appelbe <liama@google.com> Auto-Submit: Bob Nystrom <rnystrom@google.com> Commit-Queue: Liam Appelbe <liama@google.com>
77 lines
2.5 KiB
Dart
77 lines
2.5 KiB
Dart
// Copyright (c) 2015, 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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// OtherResources=verbose_gc_to_bmu_script.dart
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// This test forks a second vm process that runs the BMU tool and verifies that
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// it produces some output. This test is mainly here to ensure that the BMU
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// tool compiles and runs.
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import "dart:async";
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import "dart:convert";
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import "dart:io";
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import "package:path/path.dart";
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// Tool script relative to the path of this test.
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var toolScript = Uri.parse(
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Platform.executable,
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).resolve("../../runtime/tools/verbose_gc_to_bmu.dart").toFilePath();
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// Target script relative to this test.
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var targetScript = Platform.script
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.resolve("verbose_gc_to_bmu_script.dart")
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.toFilePath();
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const minOutputLines = 20;
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void checkExitCode(targetResult) {
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if (exitCode != 0) {
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print("Process terminated with exit code ${exitCode}.");
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exit(-1);
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}
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}
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void main() {
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// Compute paths for tool and target relative to the path of this script.
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var targetResult = Process.runSync(Platform.executable, [
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"--verbose_gc",
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targetScript,
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]);
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checkExitCode(targetResult);
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var gcLog = targetResult.stderr;
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Process.start(Platform.executable, [toolScript]).then((Process process) {
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// Feed the GC log of the target to the BMU tool.
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process.stdin.write(gcLog);
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process.stdin.close();
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var stdoutStringStream = process.stdout
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.transform(utf8.decoder)
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.transform(new LineSplitter());
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var stderrStringStream = process.stderr
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.transform(utf8.decoder)
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.transform(new LineSplitter());
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// Wait for 3 future events: stdout and stderr streams closed, and
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// process terminated.
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var futures = <Future>[];
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var stdoutLines = [];
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var stderrLines = [];
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var subscription = stdoutStringStream.listen(stdoutLines.add);
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futures.add(subscription.asFuture(true));
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subscription = stderrStringStream.listen(stderrLines.add);
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futures.add(subscription.asFuture(true));
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futures.add(process.exitCode.then(checkExitCode));
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Future.wait(futures).then((results) {
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if (stderrLines.isNotEmpty) {
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print("Unexpected output on stderr:");
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print(stderrLines.join('\n'));
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exit(-1);
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}
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if (stdoutLines.length < minOutputLines) {
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print("Less than expected output on stdout:");
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print(stdoutLines.join('\n'));
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exit(-1);
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}
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});
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});
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}
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