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ExecFutureTestCase.php
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Sun, Nov 24, 13:58

ExecFutureTestCase.php
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<?php
/*
* Copyright 2012 Facebook, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* @group testcase
*/
final class ExecFutureTestCase extends PhutilTestCase {
public function testEmptyWrite() {
// NOTE: This is mostly testing that we don't hang while doing an empty
// write.
list($stdout) = id(new ExecFuture('cat'))->write('')->resolvex();
$this->assertEqual('', $stdout);
}
public function testKeepPipe() {
// NOTE: This is mosty testing the semantics of $keep_pipe in write().
list($stdout) = id(new ExecFuture('cat'))
->write('', true)
->start()
->write('x', true)
->write('y', true)
->write('z', false)
->resolvex();
$this->assertEqual('xyz', $stdout);
}
public function testLargeBuffer() {
// NOTE: This is mostly a coverage test to hit branches where we're still
// flushing a buffer.
$data = str_repeat('x', 1024 * 1024 * 4);
list($stdout) = id(new ExecFuture('cat'))->write($data)->resolvex();
$this->assertEqual($data, $stdout);
}
public function testBufferLimit() {
$data = str_repeat('x', 1024 * 1024);
list($stdout) = id(new ExecFuture('cat'))
->setStdoutSizeLimit(1024)
->write($data)
->resolvex();
$this->assertEqual(substr($data, 0, 1024), $stdout);
}
public function testResolveTimeoutTestShouldRunLessThan1Sec() {
// NOTE: This tests interactions between the resolve() timeout and the
// ExecFuture timeout, which are similar but not identical.
$future = id(new ExecFuture('sleep 32000'))->start();
$future->setTimeout(32000);
// We expect this to return in 0.01s.
$result = $future->resolve(0.01);
$this->assertEqual($result, null);
// We expect this to now force the time out / kill immediately. If we don't
// do this, we'll hang when exiting until our subprocess exits (32000
// seconds!)
$future->setTimeout(0.01);
$future->resolve();
}
public function testTimeoutTestShouldRunLessThan1Sec() {
// NOTE: This is partly testing that we choose appropriate select wait
// times; this test should run for significantly less than 1 second.
$future = new ExecFuture('sleep 32000');
list($err) = $future->setTimeout(0.01)->resolve();
$this->assertEqual(true, $err > 0);
$this->assertEqual(true, $future->getWasKilledByTimeout());
}
public function testMultipleTimeoutsTestShouldRunLessThan1Sec() {
$futures = array();
for ($ii = 0; $ii < 4; $ii++) {
$futures[] = id(new ExecFuture('sleep 32000'))->setTimeout(0.01);
}
foreach (Futures($futures) as $future) {
list ($err) = $future->resolve();
$this->assertEqual(true, $err > 0);
$this->assertEqual(true, $future->getWasKilledByTimeout());
}
}
}

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