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# Copyright 2015 The TensorFlow Authors. All Rights Reserved.
#
# 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.
# ==============================================================================
"""Tests for tensorflow.ops.data_flow_ops.FIFOQueue."""
from __future__ import absolute_import
from __future__ import division
from __future__ import print_function
import time
from six.moves import xrange # pylint: disable=redefined-builtin
from tensorflow.compiler.tests import xla_test
from tensorflow.python.framework import dtypes as dtypes_lib
from tensorflow.python.ops import data_flow_ops
from tensorflow.python.platform import test
class FIFOQueueTest(xla_test.XLATestCase):
def testEnqueue(self):
with self.cached_session(), self.test_scope():
q = data_flow_ops.FIFOQueue(10, dtypes_lib.float32)
enqueue_op = q.enqueue((10.0,))
enqueue_op.run()
def testEnqueueWithShape(self):
with self.cached_session(), self.test_scope():
q = data_flow_ops.FIFOQueue(10, dtypes_lib.float32, shapes=(3, 2))
enqueue_correct_op = q.enqueue(([[1.0, 2.0], [3.0, 4.0], [5.0, 6.0]],))
enqueue_correct_op.run()
with self.assertRaises(ValueError):
q.enqueue(([[1.0, 2.0, 3.0], [4.0, 5.0, 6.0]],))
self.assertEqual(1, q.size().eval())
def testMultipleDequeues(self):
with self.cached_session(), self.test_scope():
q = data_flow_ops.FIFOQueue(10, [dtypes_lib.int32], shapes=[()])
self.evaluate(q.enqueue([1]))
self.evaluate(q.enqueue([2]))
self.evaluate(q.enqueue([3]))
a, b, c = self.evaluate([q.dequeue(), q.dequeue(), q.dequeue()])
self.assertAllEqual(set([1, 2, 3]), set([a, b, c]))
def testQueuesDontShare(self):
with self.cached_session(), self.test_scope():
q = data_flow_ops.FIFOQueue(10, [dtypes_lib.int32], shapes=[()])
self.evaluate(q.enqueue(1))
q2 = data_flow_ops.FIFOQueue(10, [dtypes_lib.int32], shapes=[()])
self.evaluate(q2.enqueue(2))
self.assertAllEqual(self.evaluate(q2.dequeue()), 2)
self.assertAllEqual(self.evaluate(q.dequeue()), 1)
def testEnqueueDictWithoutNames(self):
with self.cached_session(), self.test_scope():
q = data_flow_ops.FIFOQueue(10, dtypes_lib.float32)
with self.assertRaisesRegexp(ValueError, "must have names"):
q.enqueue({"a": 12.0})
def testParallelEnqueue(self):
with self.cached_session() as sess, self.test_scope():
q = data_flow_ops.FIFOQueue(10, dtypes_lib.float32)
elems = [10.0, 20.0, 30.0, 40.0, 50.0, 60.0, 70.0, 80.0, 90.0, 100.0]
enqueue_ops = [q.enqueue((x,)) for x in elems]
dequeued_t = q.dequeue()
# Run one producer thread for each element in elems.
def enqueue(enqueue_op):
sess.run(enqueue_op)
threads = [
self.checkedThread(target=enqueue, args=(e,)) for e in enqueue_ops
]
for thread in threads:
thread.start()
for thread in threads:
thread.join()
# Dequeue every element using a single thread.
results = []
for _ in xrange(len(elems)):
results.append(dequeued_t.eval())
self.assertItemsEqual(elems, results)
def testParallelDequeue(self):
with self.cached_session() as sess, self.test_scope():
q = data_flow_ops.FIFOQueue(10, dtypes_lib.float32)
elems = [10.0, 20.0, 30.0, 40.0, 50.0, 60.0, 70.0, 80.0, 90.0, 100.0]
enqueue_ops = [q.enqueue((x,)) for x in elems]
dequeued_t = q.dequeue()
# Enqueue every element using a single thread.
for enqueue_op in enqueue_ops:
enqueue_op.run()
# Run one consumer thread for each element in elems.
results = []
def dequeue():
results.append(sess.run(dequeued_t))
threads = [self.checkedThread(target=dequeue) for _ in enqueue_ops]
for thread in threads:
thread.start()
for thread in threads:
thread.join()
self.assertItemsEqual(elems, results)
def testDequeue(self):
with self.cached_session(), self.test_scope():
q = data_flow_ops.FIFOQueue(10, dtypes_lib.float32)
elems = [10.0, 20.0, 30.0]
enqueue_ops = [q.enqueue((x,)) for x in elems]
dequeued_t = q.dequeue()
for enqueue_op in enqueue_ops:
enqueue_op.run()
for i in xrange(len(elems)):
vals = dequeued_t.eval()
self.assertEqual([elems[i]], vals)
def testEnqueueAndBlockingDequeue(self):
with self.cached_session() as sess, self.test_scope():
q = data_flow_ops.FIFOQueue(3, dtypes_lib.float32)
elems = [10.0, 20.0, 30.0]
enqueue_ops = [q.enqueue((x,)) for x in elems]
dequeued_t = q.dequeue()
def enqueue():
# The enqueue_ops should run after the dequeue op has blocked.
# TODO(mrry): Figure out how to do this without sleeping.
time.sleep(0.1)
for enqueue_op in enqueue_ops:
sess.run(enqueue_op)
results = []
def dequeue():
for _ in xrange(len(elems)):
results.append(sess.run(dequeued_t))
enqueue_thread = self.checkedThread(target=enqueue)
dequeue_thread = self.checkedThread(target=dequeue)
enqueue_thread.start()
dequeue_thread.start()
enqueue_thread.join()
dequeue_thread.join()
for elem, result in zip(elems, results):
self.assertEqual([elem], result)
def testMultiEnqueueAndDequeue(self):
with self.cached_session() as sess, self.test_scope():
q = data_flow_ops.FIFOQueue(10, (dtypes_lib.int32, dtypes_lib.float32))
elems = [(5, 10.0), (10, 20.0), (15, 30.0)]
enqueue_ops = [q.enqueue((x, y)) for x, y in elems]
dequeued_t = q.dequeue()
for enqueue_op in enqueue_ops:
enqueue_op.run()
for i in xrange(len(elems)):
x_val, y_val = sess.run(dequeued_t)
x, y = elems[i]
self.assertEqual([x], x_val)
self.assertEqual([y], y_val)
def testQueueSizeEmpty(self):
with self.cached_session(), self.test_scope():
q = data_flow_ops.FIFOQueue(10, dtypes_lib.float32)
self.assertEqual([0], q.size().eval())
def testQueueSizeAfterEnqueueAndDequeue(self):
with self.cached_session(), self.test_scope():
q = data_flow_ops.FIFOQueue(10, dtypes_lib.float32)
enqueue_op = q.enqueue((10.0,))
dequeued_t = q.dequeue()
size = q.size()
self.assertEqual([], size.get_shape())
enqueue_op.run()
self.assertEqual(1, size.eval())
dequeued_t.op.run()
self.assertEqual(0, size.eval())
if __name__ == "__main__":
test.main()
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