class ReactorReaderWriterTest(unittest.TestCase):
def _set_nonblocking(self, fd):
flags = fcntl.fcntl(fd, fcntl.F_GETFL)
fcntl.fcntl(fd, fcntl.F_SETFL, flags | os.O_NONBLOCK)
def setUp(self):
self._reactor = TornadoReactor(IOLoop())
r, w = os.pipe()
self._set_nonblocking(r)
self._set_nonblocking(w)
set_close_exec(r)
set_close_exec(w)
self._p1 = os.fdopen(r, "rb", 0)
self._p2 = os.fdopen(w, "wb", 0)
def _testReadWrite(self):
"""
In this test the writer writes an 'x' to its fd. The reader
reads it, check the value and ends the test.
"""
self.shouldWrite = True
def checkReadInput(fd):
self.assertEquals(fd.read(), 'x')
self._reactor.stop()
def writeOnce(fd):
if self.shouldWrite:
self.shouldWrite = False
fd.write('x')
self._reader = Reader(self._p1, checkReadInput)
self._writer = Writer(self._p2, writeOnce)
self._reactor.addWriter(self._writer)
# Test that adding the reader twice adds it only once to
# IOLoop.
self._reactor.addReader(self._reader)
self._reactor.addReader(self._reader)
def testReadWrite(self):
self._reactor.callWhenRunning(self._testReadWrite)
self._reactor.run()
def _testNoWriter(self):
"""
In this test we have no writer. Make sure the reader doesn't
read anything.
"""
def checkReadInput(fd):
self.fail("Must not be called.")
def stopTest():
# Close the writer here since the IOLoop doesn't know
# about it.
self._writer.close()
self._reactor.stop()
self._reader = Reader(self._p1, checkReadInput)
# We create a writer, but it should never be invoked.
self._writer = Writer(self._p2, lambda fd: fd.write('x'))
# Test that adding and removing the writer leaves us with no writer.
self._reactor.addWriter(self._writer)
self._reactor.removeWriter(self._writer)
# Test that adding and removing the reader doesn't cause
# unintended effects.
self._reactor.addReader(self._reader)
# Wake up after a moment and stop the test
self._reactor.callLater(0.001, stopTest)
def testNoWriter(self):
self._reactor.callWhenRunning(self._testNoWriter)
self._reactor.run()
class ReactorReaderWriterTest(unittest.TestCase):
def _set_nonblocking(self, fd):
flags = fcntl.fcntl(fd, fcntl.F_GETFL)
fcntl.fcntl(fd, fcntl.F_SETFL, flags | os.O_NONBLOCK)
def setUp(self):
self._reactor = TornadoReactor(IOLoop())
r, w = os.pipe()
self._set_nonblocking(r)
self._set_nonblocking(w)
set_close_exec(r)
set_close_exec(w)
self._p1 = os.fdopen(r, "rb", 0)
self._p2 = os.fdopen(w, "wb", 0)
def _testReadWrite(self):
"""
In this test the writer writes an 'x' to its fd. The reader
reads it, check the value and ends the test.
"""
self.shouldWrite = True
def checkReadInput(fd):
self.assertEquals(fd.read(), 'x')
self._reactor.stop()
def writeOnce(fd):
if self.shouldWrite:
self.shouldWrite = False
fd.write('x')
self._reader = Reader(self._p1, checkReadInput)
self._writer = Writer(self._p2, writeOnce)
self._reactor.addWriter(self._writer)
# Test that adding the reader twice adds it only once to
# IOLoop.
self._reactor.addReader(self._reader)
self._reactor.addReader(self._reader)
def testReadWrite(self):
self._reactor.callWhenRunning(self._testReadWrite)
self._reactor.run()
def _testNoWriter(self):
"""
In this test we have no writer. Make sure the reader doesn't
read anything.
"""
def checkReadInput(fd):
self.fail("Must not be called.")
def stopTest():
# Close the writer here since the IOLoop doesn't know
# about it.
self._writer.close()
self._reactor.stop()
self._reader = Reader(self._p1, checkReadInput)
# We create a writer, but it should never be invoked.
self._writer = Writer(self._p2, lambda fd: fd.write('x'))
# Test that adding and removing the writer leaves us with no writer.
self._reactor.addWriter(self._writer)
self._reactor.removeWriter(self._writer)
# Test that adding and removing the reader doesn't cause
# unintended effects.
self._reactor.addReader(self._reader)
# Wake up after a moment and stop the test
self._reactor.callLater(0.001, stopTest)
def testNoWriter(self):
self._reactor.callWhenRunning(self._testNoWriter)
self._reactor.run()
