135 lines
4.1 KiB
Python
135 lines
4.1 KiB
Python
# @author Donovan Preston, Aaron Brashears
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#
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# Copyright (c) 2006-2007, Linden Research, Inc.
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# Permission is hereby granted, free of charge, to any person obtaining a copy
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# of this software and associated documentation files (the "Software"), to deal
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# in the Software without restriction, including without limitation the rights
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# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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# copies of the Software, and to permit persons to whom the Software is
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# furnished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be included in
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# all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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# THE SOFTWARE.
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import sys
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from unittest import TestCase, main
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from eventlet import processes
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class TestEchoPool(TestCase):
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def setUp(self):
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self.pool = processes.ProcessPool('echo', ["hello"])
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def test_echo(self):
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result = None
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proc = self.pool.get()
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try:
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result = proc.read()
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finally:
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self.pool.put(proc)
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self.assertEquals(result, 'hello\n')
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def test_read_eof(self):
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proc = self.pool.get()
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try:
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proc.read()
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self.assertRaises(processes.DeadProcess, proc.read)
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finally:
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self.pool.put(proc)
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class TestCatPool(TestCase):
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def setUp(self):
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self.pool = processes.ProcessPool('cat')
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def test_cat(self):
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result = None
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proc = self.pool.get()
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try:
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proc.write('goodbye')
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proc.close_stdin()
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result = proc.read()
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finally:
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self.pool.put(proc)
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self.assertEquals(result, 'goodbye')
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def test_write_to_dead(self):
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result = None
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proc = self.pool.get()
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try:
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proc.write('goodbye')
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proc.close_stdin()
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result = proc.read()
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self.assertRaises(processes.DeadProcess, proc.write, 'foo')
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finally:
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self.pool.put(proc)
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def test_close(self):
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result = None
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proc = self.pool.get()
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try:
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proc.write('hello')
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proc.close()
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self.assertRaises(processes.DeadProcess, proc.write, 'goodbye')
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finally:
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self.pool.put(proc)
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class TestDyingProcessesLeavePool(TestCase):
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def setUp(self):
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self.pool = processes.ProcessPool('echo', ['hello'], max_size=1)
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def test_dead_process_not_inserted_into_pool(self):
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proc = self.pool.get()
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try:
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try:
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result = proc.read()
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self.assertEquals(result, 'hello\n')
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result = proc.read()
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except processes.DeadProcess:
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pass
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finally:
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self.pool.put(proc)
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proc2 = self.pool.get()
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self.assert_(proc is not proc2)
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class TestProcessLivesForever(TestCase):
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def setUp(self):
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self.pool = processes.ProcessPool(sys.executable, ['-c', 'print "y"; import time; time.sleep(0.4); print "y"'], max_size=1)
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def test_reading_twice_from_same_process(self):
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# this test is a little timing-sensitive in that if the sub-process
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# completes its sleep before we do a full put/get then it will fail
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proc = self.pool.get()
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try:
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result = proc.read(2)
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self.assertEquals(result, 'y\n')
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finally:
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self.pool.put(proc)
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proc2 = self.pool.get()
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self.assert_(proc is proc2, "This will fail if there is a timing issue")
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try:
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result = proc2.read(2)
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self.assertEquals(result, 'y\n')
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finally:
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self.pool.put(proc2)
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if __name__ == '__main__':
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main()
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