c6920fcafc
From Python3.5, we have a different object to represent a FrameSummary: https://docs.python.org/3/library/traceback.html#framesummary-objects PiperOrigin-RevId: 276853881 Change-Id: I7563f0e0b14e71a76ad5554f48146d2c7221be65
75 lines
2.5 KiB
Python
75 lines
2.5 KiB
Python
# Copyright 2019 The TensorFlow Authors. All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# ==============================================================================
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"""Tests for functions used to extract and analyze stacks."""
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from __future__ import absolute_import
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from __future__ import division
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from __future__ import print_function
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import traceback
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from tensorflow.python.platform import test
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from tensorflow.python.util import tf_stack
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class TFStackTest(test.TestCase):
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def testLimit(self):
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self.assertEmpty(tf_stack.extract_stack(limit=0))
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self.assertLen(tf_stack.extract_stack(limit=1), 1)
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self.assertEqual(
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len(tf_stack.extract_stack(limit=-1)),
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len(tf_stack.extract_stack()))
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def testConsistencyWithTraceback(self):
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stack, expected_stack = extract_stack()
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for frame, expected in zip(stack, expected_stack):
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self.assertEqual(convert_stack_frame(frame), expected)
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def testFormatStack(self):
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stack, expected_stack = extract_stack()
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self.assertEqual(
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traceback.format_list(stack),
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traceback.format_list(expected_stack))
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def testFrameSummaryEquality(self):
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frame0, frame1 = tf_stack.extract_stack(limit=2)
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self.assertNotEqual(frame0, frame1)
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self.assertEqual(frame0, frame0)
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another_frame0, _ = tf_stack.extract_stack(limit=2)
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self.assertEqual(frame0, another_frame0)
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def extract_stack(limit=None):
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# Both defined on the same line to produce identical stacks.
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return tf_stack.extract_stack(limit), traceback.extract_stack(limit)
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def convert_stack_frame(frame):
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"""Converts a TF stack frame into Python's."""
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# TODO(mihaimaruseac): Remove except case when dropping suport for py2
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try:
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return traceback.FrameSummary(
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frame.filename, frame.lineno, frame.name, line=frame.line)
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except AttributeError:
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# On Python < 3.5 (i.e., Python2), we don't have traceback.FrameSummary so
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# we don't need to match with that class. Instead, just a tuple is enough.
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return tuple(frame)
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if __name__ == "__main__":
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test.main()
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