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# Copyright 2017 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 live_values module."""
from __future__ import absolute_import
from __future__ import division
from __future__ import print_function
import six
from tensorflow.python.autograph.pyct import anno
from tensorflow.python.autograph.pyct import cfg
from tensorflow.python.autograph.pyct import parser
from tensorflow.python.autograph.pyct import qual_names
from tensorflow.python.autograph.pyct import transformer
from tensorflow.python.autograph.pyct.static_analysis import activity
from tensorflow.python.autograph.pyct.static_analysis import live_values
from tensorflow.python.autograph.pyct.static_analysis import reaching_definitions
from tensorflow.python.autograph.pyct.static_analysis import type_info
from tensorflow.python.framework import constant_op
from tensorflow.python.platform import test
class LiveValuesResolverTest(test.TestCase):
def _parse_and_analyze(self,
test_fn,
namespace,
literals=None,
arg_types=None):
literals = literals or {}
node, source = parser.parse_entity(test_fn)
entity_info = transformer.EntityInfo(
source_code=source,
source_file=None,
namespace=namespace,
arg_values=None,
arg_types=arg_types,
owner_type=None)
node = qual_names.resolve(node)
graphs = cfg.build(node)
node = activity.resolve(node, entity_info)
node = reaching_definitions.resolve(node, entity_info, graphs,
reaching_definitions.Definition)
node = live_values.resolve(node, entity_info, literals)
node = type_info.resolve(node, entity_info)
node = live_values.resolve(node, entity_info, literals)
return node
def test_literals(self):
a = None
def test_fn():
return a
node = self._parse_and_analyze(test_fn, {}, literals={'a': 'bar'})
retval_node = node.body[0].body[0].value
self.assertEquals('bar', anno.getanno(retval_node, 'live_val'))
def test_primitive_values(self):
a = None
def test_fn():
return a
node = self._parse_and_analyze(test_fn, {'a': True})
retval_node = node.body[0].body[0].value
if six.PY2:
self.assertEqual(
anno.getanno(retval_node, 'fqn'), ('__builtin__', 'bool'))
else:
self.assertEqual(anno.getanno(retval_node, 'fqn'), ('builtins', 'bool'))
def test_namespace(self):
def foo():
return 'bar'
def test_fn():
return foo()
node = self._parse_and_analyze(test_fn, {'foo': foo})
func_node = node.body[0].body[0].value.func
self.assertEquals(foo, anno.getanno(func_node, 'live_val'))
self.assertEquals(('foo',), anno.getanno(func_node, 'fqn'))
def test_attribute_names(self):
def test_fn():
return constant_op.constant(0)
node = self._parse_and_analyze(test_fn, {'constant_op': constant_op})
func_node = node.body[0].body[0].value.func
self.assertEquals(constant_op.constant, anno.getanno(func_node, 'live_val'))
self.assertEquals((constant_op.__name__, 'constant'),
anno.getanno(func_node, 'fqn'))
def test_attributes_with_type_hints(self):
class TestClass(object):
def member(self):
pass
def test_fn(self):
return self.member()
node = self._parse_and_analyze(
TestClass.test_fn, {'constant_op': constant_op},
arg_types={'self': (TestClass.__name__, TestClass)})
func_node = node.body[0].body[0].value.func
self.assertEquals(TestClass.member, anno.getanno(func_node, 'live_val'))
self.assertEquals(TestClass, anno.getanno(func_node, 'parent_type'))
self.assertEquals(('TestClass', 'member'), anno.getanno(func_node, 'fqn'))
if __name__ == '__main__':
test.main()
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