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1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file |
2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
4 | 4 |
5 library scheduled_test.scheduled_process; | 5 library scheduled_test.scheduled_process; |
6 | 6 |
7 import 'dart:async'; | 7 import 'dart:async'; |
8 import 'dart:io'; | 8 import 'dart:io'; |
9 | 9 |
10 import 'scheduled_test.dart'; | 10 import 'scheduled_test.dart'; |
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62 /// [shouldExit] or [kill]. | 62 /// [shouldExit] or [kill]. |
63 var _endScheduled = false; | 63 var _endScheduled = false; |
64 | 64 |
65 /// The task that runs immediately before this process is scheduled to end. If | 65 /// The task that runs immediately before this process is scheduled to end. If |
66 /// the process ends during this task, we treat that as expected. | 66 /// the process ends during this task, we treat that as expected. |
67 Task _taskBeforeEnd; | 67 Task _taskBeforeEnd; |
68 | 68 |
69 /// Whether the process is expected to terminate at this point. | 69 /// Whether the process is expected to terminate at this point. |
70 var _endExpected = false; | 70 var _endExpected = false; |
71 | 71 |
72 /// Schedules a process to start. [executable], [arguments], and [options] | 72 /// Schedules a process to start. [executable], [arguments], |
73 /// have the same meaning as for [Process.start]. [description] is a string | 73 /// [workingDirectory], and [environment] have the same meaning as for |
74 /// [Process.start]. [description] is a string | |
nweiz
2013/05/23 18:55:11
Please re-justify the whole paragraph. The followi
Anders Johnsen
2013/05/24 11:04:15
Done.
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74 /// description of this process; it defaults to the command-line invocation. | 75 /// description of this process; it defaults to the command-line invocation. |
75 /// [encoding] is the [Encoding] that will be used for the process's input and | 76 /// [encoding] is the [Encoding] that will be used for the process's input and |
76 /// output. | 77 /// output. |
77 /// | 78 /// |
78 /// [executable], [arguments], and [options] may be either a [Future] or a | 79 /// [executable], [arguments], [workingDirectory], and [environment] may be |
80 /// either a [Future] or a | |
79 /// concrete value. If any are [Future]s, the process won't start until the | 81 /// concrete value. If any are [Future]s, the process won't start until the |
80 /// [Future]s have completed. In addition, [arguments] may be a [List] | 82 /// [Future]s have completed. In addition, [arguments] may be a [List] |
81 /// containing a mix of strings and [Future]s. | 83 /// containing a mix of strings and [Future]s. |
82 ScheduledProcess.start(executable, arguments, | 84 ScheduledProcess.start(executable, arguments, |
83 {options, String description, Encoding encoding: Encoding.UTF_8}) | 85 {workingDirectory, environment, String description, |
kustermann
2013/05/24 08:44:30
I wouldn't mind if we make this 'cwd'. But I guess
Anders Johnsen
2013/05/24 11:04:15
Yep. :)
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86 Encoding encoding: Encoding.UTF_8}) | |
84 : _encoding = encoding, | 87 : _encoding = encoding, |
85 _explicitDescription = description != null, | 88 _explicitDescription = description != null, |
86 _description = description { | 89 _description = description { |
87 assert(currentSchedule.state == ScheduleState.SET_UP); | 90 assert(currentSchedule.state == ScheduleState.SET_UP); |
88 | 91 |
89 _updateDescription(executable, arguments); | 92 _updateDescription(executable, arguments); |
90 | 93 |
91 _scheduleStartProcess(executable, arguments, options); | 94 _scheduleStartProcess(executable, arguments, workingDirectory, environment); |
92 | 95 |
93 _scheduleExceptionCleanup(); | 96 _scheduleExceptionCleanup(); |
94 | 97 |
95 var stdoutWithCanceller = _lineStreamWithCanceller( | 98 var stdoutWithCanceller = _lineStreamWithCanceller( |
96 _process.then((p) => p.stdout)); | 99 _process.then((p) => p.stdout)); |
97 _stdoutCanceller = stdoutWithCanceller.last; | 100 _stdoutCanceller = stdoutWithCanceller.last; |
98 _stdoutLog = stdoutWithCanceller.first; | 101 _stdoutLog = stdoutWithCanceller.first; |
99 | 102 |
100 var stderrWithCanceller = _lineStreamWithCanceller( | 103 var stderrWithCanceller = _lineStreamWithCanceller( |
101 _process.then((p) => p.stderr)); | 104 _process.then((p) => p.stderr)); |
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113 if (executable is Future) { | 116 if (executable is Future) { |
114 _description = "future process"; | 117 _description = "future process"; |
115 } else if (arguments is Future || arguments.any((e) => e is Future)) { | 118 } else if (arguments is Future || arguments.any((e) => e is Future)) { |
116 _description = executable; | 119 _description = executable; |
117 } else { | 120 } else { |
118 _description = "$executable ${arguments.map((a) => '"$a"').join(' ')}"; | 121 _description = "$executable ${arguments.map((a) => '"$a"').join(' ')}"; |
119 } | 122 } |
120 } | 123 } |
121 | 124 |
122 /// Schedules the process to start and sets [_process]. | 125 /// Schedules the process to start and sets [_process]. |
123 void _scheduleStartProcess(executable, arguments, options) { | 126 void _scheduleStartProcess(executable, |
127 arguments, | |
128 workingDirectory, | |
129 environment) { | |
124 var exitCodeCompleter = new Completer(); | 130 var exitCodeCompleter = new Completer(); |
125 _exitCode = new ValueFuture(exitCodeCompleter.future); | 131 _exitCode = new ValueFuture(exitCodeCompleter.future); |
126 | 132 |
127 _process = new ValueFuture(schedule(() { | 133 _process = new ValueFuture(schedule(() { |
128 if (!_endScheduled) { | 134 if (!_endScheduled) { |
129 throw new StateError("Scheduled process '$description' must " | 135 throw new StateError("Scheduled process '$description' must " |
130 "have shouldExit() or kill() called before the test is run."); | 136 "have shouldExit() or kill() called before the test is run."); |
131 } | 137 } |
132 | 138 |
133 _handleExit(exitCodeCompleter); | 139 _handleExit(exitCodeCompleter); |
134 | 140 |
135 return Future.wait([ | 141 return Future.wait([ |
136 new Future.sync(() => executable), | 142 new Future.sync(() => executable), |
137 awaitObject(arguments), | 143 awaitObject(arguments), |
138 new Future.sync(() => options) | 144 new Future.sync(() => workingDirectory), |
145 new Future.sync(() => environment) | |
kustermann
2013/05/24 08:44:30
Why do we have 'new Future.sync(() => executable)'
Anders Johnsen
2013/05/24 11:04:15
Since the executable can be wrapped in a Future. S
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139 ]).then((results) { | 146 ]).then((results) { |
140 executable = results[0]; | 147 executable = results[0]; |
141 arguments = results[1]; | 148 arguments = results[1]; |
142 options = results[2]; | 149 workingDirectory = results[2]; |
150 environment = results[3]; | |
143 _updateDescription(executable, arguments); | 151 _updateDescription(executable, arguments); |
144 return Process.start(executable, arguments, options).then((process) { | 152 return Process.start(executable, |
153 arguments, | |
154 workingDirectory: workingDirectory, | |
155 environment: environment).then((process) { | |
145 // TODO(nweiz): enable this when issue 9020 is fixed. | 156 // TODO(nweiz): enable this when issue 9020 is fixed. |
Yonggang Luo
2013/05/24 18:55:59
https://code.google.com/p/dart/issues/detail?id=90
nweiz
2013/05/24 20:15:50
Nice catch, I'll enable this in a separate CL.
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146 // process.stdin.encoding = Encoding.UTF_8; | 157 // process.stdin.encoding = Encoding.UTF_8; |
147 return process; | 158 return process; |
148 }); | 159 }); |
149 }); | 160 }); |
150 }, "starting process '$description'")); | 161 }, "starting process '$description'")); |
151 } | 162 } |
152 | 163 |
153 /// Listens for [_process] to exit and passes the exit code to | 164 /// Listens for [_process] to exit and passes the exit code to |
154 /// [exitCodeCompleter]. If the process completes earlier than expected, an | 165 /// [exitCodeCompleter]. If the process completes earlier than expected, an |
155 /// exception will be signaled to the schedule. | 166 /// exception will be signaled to the schedule. |
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336 schedule(() { | 347 schedule(() { |
337 _endExpected = true; | 348 _endExpected = true; |
338 return _exitCode.then((exitCode) { | 349 return _exitCode.then((exitCode) { |
339 if (expectedExitCode != null) { | 350 if (expectedExitCode != null) { |
340 expect(exitCode, equals(expectedExitCode)); | 351 expect(exitCode, equals(expectedExitCode)); |
341 } | 352 } |
342 }); | 353 }); |
343 }, "waiting for process '$description' to exit"); | 354 }, "waiting for process '$description' to exit"); |
344 } | 355 } |
345 } | 356 } |
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