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      1 /* Copyright 2015 The TensorFlow Authors. All Rights Reserved.
      2 
      3 Licensed under the Apache License, Version 2.0 (the "License");
      4 you may not use this file except in compliance with the License.
      5 You may obtain a copy of the License at
      6 
      7     http://www.apache.org/licenses/LICENSE-2.0
      8 
      9 Unless required by applicable law or agreed to in writing, software
     10 distributed under the License is distributed on an "AS IS" BASIS,
     11 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     12 See the License for the specific language governing permissions and
     13 limitations under the License.
     14 ==============================================================================*/
     15 
     16 #ifndef TENSORFLOW_GRAPH_EQUAL_GRAPH_DEF_H_
     17 #define TENSORFLOW_GRAPH_EQUAL_GRAPH_DEF_H_
     18 
     19 #include "tensorflow/core/framework/graph_def_util.h"
     20 #include "tensorflow/core/platform/protobuf.h"
     21 #include "tensorflow/core/platform/types.h"
     22 
     23 namespace tensorflow {
     24 
     25 class GraphDef;
     26 class NodeDef;
     27 
     28 struct EqualGraphDefOptions {
     29   // Should internal attributes (attribute names that start with '_') be
     30   // ignored?
     31   bool ignore_internal_attrs = true;
     32 };
     33 
     34 // Determines if actual and expected are equal, ignoring versions and ordering
     35 // of nodes, attrs, and control inputs.  If the GraphDefs are different and
     36 // diff != nullptr, *diff is set to an explanation of the difference.  Note that
     37 // we use node names to match up nodes between the graphs, and so the naming of
     38 // nodes must be consistent.
     39 bool EqualGraphDef(const GraphDef& actual, const GraphDef& expected,
     40                    string* diff, const EqualGraphDefOptions& options = {});
     41 
     42 // Returns a hash of `gdef` that is consistent with EqualGraphDef. In other
     43 // words, if two graph defs compare equal according to EqualGraphDef,
     44 // GraphDefHash will return the same value for both of them when called
     45 // with the same `options` that was used in the call to EqualGraphDef.
     46 // Similarly to protobuf deterministic serialization, hash value is
     47 // guaranteed to be stable only for a given binary. In particular, one should
     48 // probably not persist the returned value.
     49 uint64 GraphDefHash(const GraphDef& gdef,
     50                     const EqualGraphDefOptions& options = {});
     51 
     52 // Determines if actual and expected are equal, ignoring: ordering of
     53 // attrs, internal attributes (if set in `options`), and control inputs.
     54 //
     55 // If the NodeDefs are different and
     56 // diff != nullptr, *diff is set to an explanation of the difference.
     57 bool EqualNodeDef(const NodeDef& actual, const NodeDef& expected, string* diff,
     58                   const EqualGraphDefOptions& options = {});
     59 
     60 // Returns a hash of `ndef` that is consistent with EqualNodeDef. In other
     61 // words, if two node defs compare equal according to EqualNodeDef, NodeDefHash
     62 // will return the same value for both of them when called with the same
     63 // `options` that was used in the call to EqualNodeDef.
     64 // Similarly to protobuf deterministic serialization, hash value is
     65 // guaranteed to be stable only for a given binary. In particular, one should
     66 // probably not persist the returned value.
     67 uint64 NodeDefHash(const NodeDef& ndef,
     68                    const EqualGraphDefOptions& options = {});
     69 
     70 // Determines if actual and expected are equal, ignoring ordering. If they're
     71 // different and diff != nullptr, *diff is set to an explanation of the
     72 // difference.
     73 bool EqualRepeatedNodeDef(const protobuf::RepeatedPtrField<NodeDef>& actual,
     74                           const protobuf::RepeatedPtrField<NodeDef>& expected,
     75                           string* diff,
     76                           const EqualGraphDefOptions& options = {});
     77 
     78 // Returns a hash of `ndefs` that is consistent with EqualRepeatedNodeDef.
     79 // In other words, if two ndefs compare equal according to
     80 // EqualRepeatedNodeDef, RepeatedNodeDefHash will return the same value for
     81 // both of them when called with the same `options` that was used in
     82 // the call to EqualRepeatedNodeDef.
     83 // Similarly to protobuf deterministic serialization, hash value is
     84 // guaranteed to be stable only for a given binary. In particular, one should
     85 // probably not persist the returned value.
     86 uint64 RepeatedNodeDefHash(const protobuf::RepeatedPtrField<NodeDef>& ndefs,
     87                            const EqualGraphDefOptions& options = {});
     88 
     89 #define TF_EXPECT_GRAPH_EQ(expected, actual)            \
     90   do {                                                  \
     91     string diff;                                        \
     92     EXPECT_TRUE(EqualGraphDef(actual, expected, &diff)) \
     93         << diff << "\nExpected:\n"                      \
     94         << SummarizeGraphDef(expected) << "\nActual:\n" \
     95         << SummarizeGraphDef(actual);                   \
     96   } while (false)
     97 
     98 }  // namespace tensorflow
     99 
    100 #endif  // TENSORFLOW_GRAPH_EQUAL_GRAPH_DEF_H_
    101