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"""Tests for the SWIG-wrapped events writer."""
import os.path
from tensorflow.core.framework import summary_pb2
from tensorflow.core.util import event_pb2
from tensorflow.python import pywrap_tensorflow
from tensorflow.python.lib.io import tf_record
from tensorflow.python.framework import test_util
from tensorflow.python.platform import googletest
class PywrapeventsWriterTest(test_util.TensorFlowTestCase):
def testWriteEvents(self):
file_prefix = os.path.join(self.get_temp_dir(), "events")
writer = pywrap_tensorflow.EventsWriter(file_prefix)
filename = writer.FileName()
event_written = event_pb2.Event(
wall_time=123.45, step=67,
summary=summary_pb2.Summary(
value=[summary_pb2.Summary.Value(tag="foo", simple_value=89.0)]))
writer.WriteEvent(event_written)
writer.Flush()
writer.Close()
with self.assertRaises(IOError):
for r in tf_record.tf_record_iterator(filename + "DOES_NOT_EXIST"):
self.assertTrue(False)
reader = tf_record.tf_record_iterator(filename)
event_read = event_pb2.Event()
event_read.ParseFromString(next(reader))
self.assertTrue(event_read.HasField("file_version"))
event_read.ParseFromString(next(reader))
# Second event
self.assertProtoEquals("""
wall_time: 123.45 step: 67
summary { value { tag: 'foo' simple_value: 89.0 } }
""", event_read)
with self.assertRaises(StopIteration):
next(reader)
def testWriteEventInvalidType(self):
class _Invalid(object):
def __str__(self): return "Invalid"
with self.assertRaisesRegexp(TypeError, "Invalid"):
pywrap_tensorflow.EventsWriter("foo").WriteEvent(_Invalid())
if __name__ == "__main__":
googletest.main()
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