Testrunner for 3rd parties.

utils/testrunner/options.dart

+// Copyright (c) 2012, 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.
+
+// Create and return an options parser for the test runner.
+ArgParser getOptionParser() {
+  var parser = new ArgParser();
+
+  parser.addOption('help', abbr: '?',
+      help: 'Show usage information.');
+
+  parser.addOption('runtime', abbr: 'r', defaultsTo: 'vm',
+      help: 'Where the tests should be run.',
+      allowed: ['vm', 'drt-dart', 'drt-js', 'd8'],
+      allowedHelp: {
+        'vm': 'Run Dart code natively on the standalone dart vm.',
+        'drt-dart': 'Run Dart code natively in the headless version of\n'
+          'Chrome, DumpRenderTree.',
+        'drt-js': 'Run Dart compiled to JavaScript in the headless version\n'
+            'of Chrome, DumpRenderTree.',
+        'd8': 'Run Dart compiled to JavaScript from the command line using v8.'
+      });
+
+  parser.addFlag('checked', defaultsTo: false,
+      help: 'Run tests in checked mode.');
+
+  parser.addOption('timeout', abbr: 't',
+      help: 'Timeout in seconds', defaultsTo: '60');
+
+  parser.addOption('tasks', abbr: 'j',
+      defaultsTo: Platform.numberOfProcessors.toString(),
+      help: 'The number of parallel tasks to run.');
+
+  parser.addOption('out', abbr: 'o', defaultsTo: 'stdout',
+      help: 'File to send test results. This should be a '
+        'file name or one of stdout, stderr, or none.');
+
+  parser.addOption('format', abbr: 'f',
+      defaultsTo: '${Meta.testResult}${Meta.testTime}'
+                  '${Meta.testfile}${Meta.testGroup}'
+                  '${Meta.testDescription}${Meta.testMessage}',
+      help: 'Format for test result output.');
+
+  parser.addFlag('summary', defaultsTo: false,
+      help: 'Print a summary of tests passed/failed for each test file.');
+
+  parser.addOption('log', abbr: 'l', defaultsTo: 'none',
+      help: 'File to send test log/print output to. This should be a '
+        'file name or one of stdout, stderr, or none.');
+
+  // TODO(gram) - add loglevel once we have switched unittest to use the log
+  // library.
+
+  parser.addFlag('list-files', defaultsTo: false,
+      help: 'List test files only, do not run them.');
+
+  parser.addFlag('list-tests', defaultsTo: false,
+      help: 'List tests only, do not run them.');
+
+  parser.addFlag('list-groups', defaultsTo: false,
+      help: 'List test groups only, do not run tests.');
+
+  parser.addFlag('keep-generated-tests', defaultsTo: false,
+      help: 'Keep the generated files in the temporary directory.');
+
+  parser.addFlag('list-options', defaultsTo: false,
+      help: 'Print non-default option settings, usable as a test.config.');
+
+  parser.addFlag('list-all-options', defaultsTo: false,
+      help: 'Print all option settings, usable as a test.config.');
+
+  parser.addFlag('time',
+      help: 'Print timing information after running tests',
+      defaultsTo: false);
+
+  parser.addFlag('stop-on-failure', defaultsTo: false,
+      help: 'Stop execution upon first failure.');
+
+  parser.addFlag('isolate', defaultsTo: false,
+      help: 'Runs each test in a separate isolate.');
+
+  parser.addOption('configfile', help: 'Path to an argument file to load.');
+
+  // The defaults here should be the name of the executable, with
+  // the assumption that it is available on the PATH.
+  parser.addOption('dart2js', help: 'Path to dart2js executable.',
+      defaultsTo: 'dart2js');
+  parser.addOption('dart',    help: 'Path to dart executable.',
+      defaultsTo: 'dart');
+  parser.addOption('drt',     help: 'Path to DumpRenderTree executable.',
+      defaultsTo: 'drt');
+  parser.addOption('d8',      help: 'Path to d8 executable.',
+      defaultsTo: 'd8');
+
+  parser.addOption('tempdir', help: 'Directory to store temp files.',
+      defaultsTo: '${Platform.pathSeparator}tmp'
+                  '${Platform.pathSeparator}testrunner');
+
+  parser.addOption('test-file-pat',
+      help: 'A regular expression that test file names must match '
+        'to be considered', defaultsTo: '_test.dart\$');
+
+  parser.addOption('include',
+      help: 'Only run tests from the specified group(s).',
+      allowMultiple: true);
+
+  parser.addOption('exclude',
+      help: 'Exclude tests from the specified group(s).',
+      allowMultiple: true);
+
+  parser.addFlag('recurse', abbr: 'R',
+      help: 'Recurse through child directories looking for tests.',
+      defaultsTo: false);
+
+  parser.addOption('unittest',  help: '#import path for unit test library.');
+
+  parser.addOption('pass-text',
+      help: 'Text to use in messages for passing tests.',
+      defaultsTo: 'PASS');
+
+  parser.addOption('fail-text',
+      help: 'Text to use in messages for failing tests.',
+      defaultsTo: 'FAIL');
+
+  parser.addOption('error-text',
+      help: 'Text to use in messages for tests with errors.',
+      defaultsTo: 'ERROR');
+  return parser;
+}
+
+// Print a value option, quoting it if it has embedded spaces.
+_printValueOption(String name, value, OutputStream stream) {
+  if (value.indexOf(' ') >= 0) {
+    stream.writeString("--$name='$value'\n");
+  } else {
+    stream.writeString("--$name=$value\n");
+  }
+}
+
+// Print the current option values.
+printOptions(ArgParser parser, ArgResults arguments,
+             bool includeDefaults, OutputStream stream) {
+  if (stream == null) return;
+  for (var name in arguments.options) {
+    if (!name.startsWith('list-')) {
+      var value = arguments[name];
+      var defaultValue = parser.getDefault(name);
+      if (value is bool) {
+        if (includeDefaults || (value != defaultValue)) {
+          stream.writeString('--${value ? "" : "no-"}$name\n');
+        }
+      } else if (value is List) {
+        if (value.length > 0) {
+          for (var v in value) {
+            _printValueOption(name, v, stream);
+          }
+        }
+      } else if (value != null && (includeDefaults || value != defaultValue)) {
+        _printValueOption(name, value, stream);
+      }
+    }
+  }
+}
+
+// Get the test runner configuration. This loads options from multiple
+// sources, in increasing order of priority: a test.config file in the
+// current directory, a test config file specified with --configfile on
+// the command line, and other arguments specified on the command line.
+ArgResults loadConfiguration(optionsParser) {
+  var options = new List();
+  // We first load options from a test.config file in the working directory.
+  options.addAll(getFileContents('test.config', false).
+      filter((e) => e.trim().length > 0 && e[0] != '#'));
+  // Next we look to see if the command line included a -testconfig argument,
+  // and if so, load options from that file too; where these are not
+  // multi-valued they will take precedence over the ones in test.config.
+  var commandLineArgs = new Options().arguments;
+  var cfgarg = '--configfile';
+  for (var i = 0; i < commandLineArgs.length; i++) {
+    if (commandLineArgs[i].startsWith(cfgarg)) {
+      if (commandLineArgs[i] == cfgarg) {
+        if (i == commandLineArgs.length - 1) {
+          throw new Exception('Missing argument to $cfgarg');
+        }
+        options.addAll(getFileContents(commandLineArgs[++i], true).
+            filter((e) => e.trim().length > 0 && e[0] != '#'));
+      } else if (commandLineArgs[i].startsWith('$cfgarg=')) {
+        options.addAll(
+            getFileContents(commandLineArgs[i].substring(cfgarg.length), true).
+                filter((e) => e.trim().length > 0 && e[0] != '#'));
+      } else {
+        throw new Exception('Missing argument to $cfgarg');
+      }
+    }
+  }
+  // Finally, we add options from the command line. These have the highest
+  // precedence of all.
+  options.addAll(commandLineArgs);
+  // Now try parse the whole collection of options, and if this fails,
+  // issue a usage message.
+  try {
+    return optionsParser.parse(options);
+  } catch (var e) {
+    print(e);
+    print('Usage: testrunner <options> [<directory or file> ...]');
+    print(optionsParser.getUsage());
+    return null;
+  }
+}
+
+// Perform some sanity checking of the configuration.
+bool sane(ArgResults config) {
+  if (config == null) {
+    return false;
+  }
+  if (config['runtime'] == null) {
+    print('Missing required option --runtime');
+    return false;
+  }
+  if (config['unittest'] == null) {
+    print('Missing required option --unittest');
+    return false;
+  }
+  if (config['include'].length > 0 &&
+      config['exclude'].length > 0) {
+    print('--include and --exclude are mutually exclusive.');
+    return false;
+  }
+  return true;
+}
+
+