-
Notifications
You must be signed in to change notification settings - Fork 74k
/
c_api_function_test.cc
1762 lines (1580 loc) · 63.6 KB
/
c_api_function_test.cc
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
/* 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.
==============================================================================*/
#include "tensorflow/c/c_api.h"
#include "tensorflow/c/c_api_internal.h"
#include "tensorflow/c/c_test_util.h"
#include "tensorflow/core/framework/common_shape_fns.h"
#include "tensorflow/core/framework/function.h"
#include "tensorflow/core/framework/function.pb.h"
#include "tensorflow/core/framework/op_def.pb.h"
#include "tensorflow/core/lib/hash/hash.h"
#include "tensorflow/core/lib/strings/proto_serialization.h"
#include "tensorflow/core/platform/logging.h"
#include "tensorflow/core/platform/status.h"
#include "tensorflow/core/platform/str_util.h"
#include "tensorflow/core/platform/strcat.h"
#include "tensorflow/core/platform/test.h"
namespace tensorflow {
namespace {
// Specification for expected input/output and its type.
// DataType value of DT_INVALID signifies that we don't want to
// check the data type.
typedef std::pair<string, DataType> IOSpec;
const char* kFeedStackToString = "File \"feed.cc\", line 10, in alpha";
const char* kNegStackToString = "File \"neg.cc\", line 15, in beta";
std::vector<IOSpec> M(const std::initializer_list<string>& names) {
std::vector<IOSpec> v;
for (const string& name : names) {
v.push_back(IOSpec(name, DT_INVALID));
}
return v;
}
// Specification for an expected edge.
// src is either:
// - input name (as it appears in FunctionDef)
// - name of output tensor (in nested "add:z:0" format)
// dst is either:
// - output name (as it appears in FunctionDef)
// - <name_of_node>:<index_of_this_input_into_node> (this looks the same as
// output tensor naming, but it the index is actually an input index)
struct EdgeSpec : public std::pair<string, string> {
typedef std::pair<string, string> Base;
// Inherit the set of constructors
using Base::pair;
string ToString() const { return strings::StrCat(first, "->", second); }
};
class CApiFunctionTest : public ::testing::Test {
protected:
CApiFunctionTest()
: s_(TF_NewStatus()),
func_graph_(TF_NewGraph()),
host_graph_(TF_NewGraph()),
func_(nullptr) {}
void SetUp() override {}
~CApiFunctionTest() override {
TF_DeleteFunction(func_);
TF_DeleteGraph(host_graph_);
TF_DeleteGraph(func_graph_);
TF_DeleteStatus(s_);
}
void Run(const std::vector<std::pair<TF_Operation*, TF_Tensor*>>& inputs,
TF_Operation* output, int32_t expected_result) {
Run(inputs, {{output, 0}}, {expected_result});
}
// Run the host graph, which now contains a function and check that
// outputs are as expected.
// 'T' stands for 'tensor' since the outputs are tensors, not scalars.
void RunT(const std::vector<std::pair<TF_Operation*, TF_Tensor*>>& inputs,
std::initializer_list<TF_Output> outputs,
const std::vector<std::vector<int32_t>>& expected_results) {
// Create a session for this graph
CSession csession(host_graph_, s_);
ASSERT_EQ(TF_OK, TF_GetCode(s_)) << TF_Message(s_);
// Run
csession.SetInputs(inputs);
csession.SetOutputs(outputs);
csession.Run(s_);
ASSERT_EQ(TF_OK, TF_GetCode(s_)) << TF_Message(s_);
// Check results
for (int i = 0; i < expected_results.size(); ++i) {
TF_Tensor* out = csession.output_tensor(i);
ASSERT_TRUE(out != nullptr);
EXPECT_EQ(TF_INT32, TF_TensorType(out));
EXPECT_EQ(1, TF_NumDims(out));
CompareInt32Tensor(expected_results[i], out);
}
}
// Run the host graph, which now contains a function and check that
// outputs are as expected.
void Run(const std::vector<std::pair<TF_Operation*, TF_Tensor*>>& inputs,
std::initializer_list<TF_Output> outputs,
const std::vector<int32_t>& expected_results) {
// Create a session for this graph.
CSession csession(host_graph_, s_);
ASSERT_EQ(TF_OK, TF_GetCode(s_)) << TF_Message(s_);
csession.SetInputs(inputs);
csession.SetOutputs(outputs);
csession.Run(s_);
ASSERT_EQ(TF_OK, TF_GetCode(s_)) << TF_Message(s_);
for (int i = 0; i < expected_results.size(); ++i) {
TF_Tensor* out = csession.output_tensor(i);
ASSERT_TRUE(out != nullptr);
EXPECT_EQ(TF_INT32, TF_TensorType(out));
EXPECT_EQ(0, TF_NumDims(out)); // scalar
ASSERT_EQ(sizeof(int32_t), TF_TensorByteSize(out));
int32_t* output_contents = static_cast<int32_t*>(TF_TensorData(out));
EXPECT_EQ(expected_results[i], *output_contents);
}
}
void CompareInt32Tensor(const std::vector<int32_t>& expected, TF_Tensor* t) {
int32_t* data = static_cast<int32_t*>(TF_TensorData(t));
size_t size = TF_TensorByteSize(t);
ASSERT_EQ(expected.size() * sizeof(int32_t), size);
for (int i = 0; i < expected.size(); ++i) {
ASSERT_EQ(expected[i], data[i]) << "Different data at index " << i;
}
}
std::vector<TF_Output> ToOutput(const std::vector<TF_Operation*> ops) {
std::vector<TF_Output> out;
for (auto op : ops) {
out.push_back({op, 0});
}
return out;
}
void Define(int num_opers, const std::vector<TF_Operation*>& opers,
const std::vector<TF_Operation*>& inputs,
const std::vector<TF_Operation*>& outputs,
const std::vector<string>& output_names,
bool expect_failure = false) {
DefineT(num_opers, opers, ToOutput(inputs), ToOutput(outputs), output_names,
expect_failure);
}
// Caller must delete[] the returned value
static const char** ToArray(const std::vector<string>& strs) {
const char** ptr = nullptr;
if (!strs.empty()) {
ptr = new const char*[strs.size()];
for (size_t i = 0; i < strs.size(); ++i) {
ptr[i] = strs[i].c_str();
}
}
return ptr;
}
// An explicit `num_opers` is needed so that we can distinguish between the
// case of no operations specified (-1) and the case of an empty set of
// operations specified (0).
void DefineT(int num_opers, const std::vector<TF_Operation*>& opers,
const std::vector<TF_Output>& inputs,
const std::vector<TF_Output>& outputs,
const std::vector<string>& output_names,
bool expect_failure = false) {
ASSERT_EQ(func_, nullptr);
const char** output_names_ptr = ToArray(output_names);
func_ = TF_GraphToFunction(func_graph_, func_name_, false, num_opers,
num_opers == -1 ? nullptr : opers.data(),
inputs.size(), inputs.data(), outputs.size(),
outputs.data(), output_names_ptr,
/*opts=*/nullptr, /*description=*/nullptr, s_);
delete[] output_names_ptr;
if (expect_failure) {
ASSERT_EQ(func_, nullptr);
return;
}
ASSERT_EQ(TF_OK, TF_GetCode(s_)) << TF_Message(s_);
ASSERT_NE(func_, nullptr);
ASSERT_EQ(std::string(func_name_), std::string(TF_FunctionName(func_)));
TF_GraphCopyFunction(host_graph_, func_, nullptr, s_);
ASSERT_EQ(TF_OK, TF_GetCode(s_)) << TF_Message(s_);
}
TF_Operation* Use(const std::vector<TF_Operation*>& inputs) {
return UseT(ToOutput(inputs));
}
TF_Operation* UseT(const std::vector<TF_Output>& inputs) {
TF_Operation* op;
UseHelper(inputs, &op);
return op;
}
// All the *Helper methods are used as a workaround for the restrictions that
// one cannot call ASSERT_* methods in non-void-returning functions (when
// exceptions are disabled during compilation)
void UseHelper(const std::vector<TF_Output>& inputs, TF_Operation** op) {
TF_OperationDescription* desc =
TF_NewOperation(host_graph_, func_name_, func_node_name_);
for (auto input : inputs) {
TF_AddInput(desc, input);
}
// Set device to CPU because some ops inside the function might not be
// available on GPU.
TF_SetDevice(desc, "/cpu:0");
*op = TF_FinishOperation(desc, s_);
ASSERT_EQ(TF_OK, TF_GetCode(s_)) << TF_Message(s_);
ASSERT_NE(*op, nullptr);
}
FunctionDef fdef() {
tensorflow::FunctionDef fdef;
EXPECT_TRUE(GetFunctionDef(func_, &fdef));
return fdef;
}
// logging utility
template <class Container>
string ToString(const Container& v) {
std::stringstream ss;
ss << "{";
size_t i = 0;
for (const auto& e : v) {
if (i != 0) {
ss << ", ";
}
ss << e.ToString();
++i;
}
ss << "}";
return ss.str();
}
void VerifyFDefNodes(const tensorflow::FunctionDef& fdef,
const std::unordered_set<string>& nodes) {
ASSERT_EQ(nodes.size(), fdef.node_def_size())
<< "Got unexpected number of nodes. Expected: ["
<< absl::StrJoin(nodes, ", ")
<< "] Actual nodes in fdef: " << fdef.DebugString();
for (const NodeDef& node_def : fdef.node_def()) {
ASSERT_TRUE(nodes.find(node_def.name()) != nodes.end())
<< "Got unexpected node: " << node_def.name()
<< " in fdef: " << fdef.DebugString();
}
}
void VerifyFDefInputs(const tensorflow::FunctionDef& fdef,
const std::vector<IOSpec>& inputs) {
const OpDef& signature = fdef.signature();
ASSERT_EQ(inputs.size(), signature.input_arg_size());
for (int i = 0; i < inputs.size(); ++i) {
const OpDef::ArgDef& arg = signature.input_arg(i);
const IOSpec& in = inputs[i];
if (in.second != DT_INVALID) {
ASSERT_EQ(arg.type(), in.second)
<< "Got unexpected type for input " << i
<< ". fdef: " << fdef.DebugString();
}
ASSERT_EQ(arg.name(), in.first) << "Got unexpected name for input " << i
<< ". fdef: " << fdef.DebugString();
}
}
void VerifyFDefOutputs(const tensorflow::FunctionDef& fdef,
const std::vector<IOSpec>& outputs) {
const OpDef& signature = fdef.signature();
ASSERT_EQ(outputs.size(), signature.output_arg_size());
for (int i = 0; i < outputs.size(); ++i) {
const OpDef::ArgDef& arg = signature.output_arg(i);
const IOSpec& out = outputs[i];
if (out.second != DT_INVALID) {
ASSERT_EQ(arg.type(), out.second)
<< "Got unexpected type for output " << i
<< ". fdef: " << fdef.DebugString();
}
ASSERT_EQ(arg.name(), out.first) << "Got unexpected name for output " << i
<< ". fdef: " << fdef.DebugString();
}
}
void VerifyFDefEdges(
const tensorflow::FunctionDef& fdef,
const std::vector<EdgeSpec>& e_edges, // expected edges
const std::vector<EdgeSpec>& c_edges, // expected ctrl edges
bool is_exact_edges = true) {
// Build a set of edges from fdef
std::set<EdgeSpec> a_edges; // actual edges
// Get edges from inputs to body nodes and between body nodes
for (const NodeDef& node_def : fdef.node_def()) {
for (int i = 0; i < node_def.input_size(); ++i) {
const string& in = node_def.input(i);
const auto& v =
a_edges.insert({in, strings::StrCat(node_def.name(), ":", i)});
ASSERT_TRUE(v.second) << "Duplicate edge " << in << " -> "
<< strings::StrCat(node_def.name(), ":", i)
<< ". fdef: " << fdef.DebugString();
}
}
// Get edges from body nodes to outputs and from inputs to outputs
for (const OpDef::ArgDef& arg : fdef.signature().output_arg()) {
const auto& iter = fdef.ret().find(arg.name());
if (iter != fdef.ret().end()) {
const auto& v = a_edges.insert({iter->second, arg.name()});
ASSERT_TRUE(v.second) << "Duplicate edge " << iter->second << " -> "
<< arg.name() << ". fdef: " << fdef.DebugString();
} else {
const auto& v = a_edges.insert({arg.name(), arg.name()});
ASSERT_TRUE(v.second) << "Duplicate edge " << arg.name() << " -> "
<< arg.name() << ". fdef: " << fdef.DebugString();
}
}
// Verify edges
for (const EdgeSpec& e : e_edges) {
ASSERT_TRUE(a_edges.find(e) != a_edges.end())
<< "Failed to find expected edge " << e.ToString()
<< " in fdef: " << fdef.DebugString();
}
for (const EdgeSpec& e : c_edges) {
ASSERT_TRUE(a_edges.find(e) != a_edges.end())
<< "Failed to find expected control edge " << e.ToString()
<< " in fdef: " << fdef.DebugString();
}
// If caller specified all edges, check that we have seen all
if (is_exact_edges) {
ASSERT_EQ(e_edges.size() + c_edges.size(), a_edges.size())
<< "Expected edges: " << ToString(e_edges)
<< " Expected Control edges: " << ToString(c_edges)
<< " Actual edges: " << ToString(a_edges)
<< " in fdef: " << fdef.DebugString();
}
}
void VerifyFDef(const std::unordered_set<string>& nodes,
const std::vector<IOSpec>& inputs,
const std::vector<IOSpec>& outputs,
const std::vector<EdgeSpec>& e_edges, // expected edges
const std::vector<EdgeSpec>& c_edges, // expected ctrl edges
bool is_exact_edges = true) {
tensorflow::FunctionDef fdef;
ASSERT_TRUE(GetFunctionDef(func_, &fdef));
VerifyFDefNodes(fdef, nodes);
VerifyFDefInputs(fdef, inputs);
VerifyFDefOutputs(fdef, outputs);
VerifyFDefEdges(fdef, e_edges, c_edges, is_exact_edges);
}
// Serialize func_ to fdef and import it back
void Reincarnate() {
// func_ -> fdef
tensorflow::FunctionDef fdef;
ASSERT_TRUE(GetFunctionDef(func_, &fdef));
TF_DeleteFunction(func_);
// fdef -> func_
string buf;
ASSERT_TRUE(fdef.SerializeToString(&buf));
func_ = TF_FunctionImportFunctionDef(buf.data(), buf.size(), s_);
ASSERT_EQ(TF_OK, TF_GetCode(s_)) << TF_Message(s_);
}
void GetAttr(const char* attr_name, AttrValue* out_attr) {
TF_Buffer* attr_buf = TF_NewBuffer();
TF_FunctionGetAttrValueProto(func_, attr_name, attr_buf, s_);
ASSERT_TRUE(out_attr->ParseFromArray(attr_buf->data, attr_buf->length));
TF_DeleteBuffer(attr_buf);
}
const char* func_name_ = "MyFunc";
const char* func_node_name_ = "MyFunc_0";
TF_Status* s_;
TF_Graph* func_graph_;
TF_Graph* host_graph_;
TF_Function* func_;
// Workaround for not being able to initialize empty map using {}
std::unordered_set<string> empty_;
};
TEST_F(CApiFunctionTest, OneOp_ZeroInputs_OneOutput) {
/*
* constant
* |
* v
*/
// Define
TF_Operation* c = ScalarConst(10, func_graph_, s_, "scalar10");
Define(-1, {}, {}, {c}, {});
// Use, run, and verify
TF_Operation* func_op = Use({});
Run({}, func_op, 10);
VerifyFDef({"scalar10_0"}, {}, {{"scalar10", DT_INT32}},
{{"scalar10_0:output:0", "scalar10"}}, {});
}
TEST_F(CApiFunctionTest, OneOp_OneInput_OneOutput) {
/*
* |
* v
* negate
* |
* v
*/
// Define
TF_Operation* feed = Placeholder(func_graph_, s_);
TF_Operation* neg = Neg(feed, func_graph_, s_);
Define(-1, {}, {feed}, {neg}, {});
// Use, run, and verify
TF_Operation* func_feed = Placeholder(host_graph_, s_);
TF_Operation* func_op = Use({func_feed});
Run({{func_feed, Int32Tensor(3)}}, func_op, -3);
VerifyFDef({"neg_0"}, {{"feed", DT_INT32}}, {{"neg", DT_INT32}},
{{"feed", "neg_0:0"}, {"neg_0:y:0", "neg"}}, {});
}
TEST_F(CApiFunctionTest, OneOutput_OutputNames) {
/*
* |
* v
* negate
* |
* v
*/
// Define
TF_Operation* feed = Placeholder(func_graph_, s_);
TF_Operation* neg = Neg(feed, func_graph_, s_);
Define(-1, {}, {feed}, {neg}, {"negated_num"});
// Use, run, and verify
TF_Operation* func_feed = Placeholder(host_graph_, s_);
TF_Operation* func_op = Use({func_feed});
Run({{func_feed, Int32Tensor(3)}}, func_op, -3);
VerifyFDef({"neg"}, {{"feed", DT_INT32}}, {{"negated_num", DT_INT32}},
{{"feed", "neg:0"}, {"neg:y:0", "negated_num"}}, {});
}
TEST_F(CApiFunctionTest, OutputNames_SameNameAsInput) {
/*
* |
* v
* negate
* |
* v
*/
// Define
TF_Operation* feed = Placeholder(func_graph_, s_, "negation");
TF_Operation* neg = Neg(feed, func_graph_, s_, "neg");
Define(-1, {}, {feed}, {neg}, {"negation"});
// Use, run, and verify
TF_Operation* func_feed = Placeholder(host_graph_, s_);
TF_Operation* func_op = Use({func_feed});
Run({{func_feed, Int32Tensor(3)}}, func_op, -3);
VerifyFDef({"neg"}, {{"negation_0", DT_INT32}}, {{"negation", DT_INT32}},
{{"negation_0", "neg:0"}, {"neg:y:0", "negation"}}, {});
}
TEST_F(CApiFunctionTest, ZeroOps_Identity) {
/*
* |
* |
* |
* v
*/
// Define
TF_Operation* feed = Placeholder(func_graph_, s_);
Define(-1, {}, {feed}, {feed}, {});
// Use, run, and verify
TF_Operation* func_feed = Placeholder(host_graph_, s_);
TF_Operation* func_op = Use({func_feed});
Run({{func_feed, Int32Tensor(3)}}, func_op, 3);
VerifyFDef(empty_, {{"feed_0", DT_INT32}}, {{"feed", DT_INT32}},
{{"feed_0", "feed"}}, {});
}
TEST_F(CApiFunctionTest, ZeroOps_Permutation) {
/*
* | |
* \ /
* \/
* x
* /\
* / \
* | |
* v v
*/
// Define
TF_Operation* feed1 = Placeholder(func_graph_, s_, "feed1");
TF_Operation* feed2 = Placeholder(func_graph_, s_, "feed2");
Define(-1, {}, {feed1, feed2}, {feed2, feed1}, {});
// Use, run, and verify
TF_Operation* two = ScalarConst(2, host_graph_, s_);
TF_Operation* func_feed = Placeholder(host_graph_, s_);
TF_Operation* func_op = Use({two, func_feed});
Run({{func_feed, Int32Tensor(3)}}, {{func_op, 0}, {func_op, 1}}, {3, 2});
VerifyFDef(empty_, M({{"feed1_0"}, {"feed2_0"}}), M({{"feed2"}, {"feed1"}}),
{{"feed1_0", "feed1"}, {"feed2_0", "feed2"}}, {});
}
TEST_F(CApiFunctionTest, ZeroOps_Permutation_OutputNames) {
/*
* | |
* \ /
* \/
* x
* /\
* / \
* | |
* v v
*/
// Define
TF_Operation* feed1 = Placeholder(func_graph_, s_, "feed1");
TF_Operation* feed2 = Placeholder(func_graph_, s_, "feed2");
Define(-1, {}, {feed1, feed2}, {feed2, feed1}, {"first", "second"});
// Use, run, and verify
TF_Operation* two = ScalarConst(2, host_graph_, s_);
TF_Operation* func_feed = Placeholder(host_graph_, s_);
TF_Operation* func_op = Use({two, func_feed});
Run({{func_feed, Int32Tensor(3)}}, {{func_op, 0}, {func_op, 1}}, {3, 2});
VerifyFDef(empty_, M({{"feed1"}, {"feed2"}}), M({{"first"}, {"second"}}),
{{"feed1", "second"}, {"feed2", "first"}}, {});
}
TEST_F(CApiFunctionTest, OneOp_TwoInputs_OneOutput) {
/*
* | |
* v v
* add
* |
* v
*/
// Define
TF_Operation* feed1 = Placeholder(func_graph_, s_, "feed1");
TF_Operation* feed2 = Placeholder(func_graph_, s_, "feed2");
TF_Operation* add = Add(feed1, feed2, func_graph_, s_);
Define(-1, {}, {feed1, feed2}, {add}, {});
// Use, run, and verify
TF_Operation* two = ScalarConst(2, host_graph_, s_);
TF_Operation* func_feed = Placeholder(host_graph_, s_);
TF_Operation* func_op = Use({two, func_feed});
Run({{func_feed, Int32Tensor(3)}}, func_op, 2 + 3);
VerifyFDef(
{"add_0"}, M({{"feed1"}, {"feed2"}}), M({{"add"}}),
{{"feed1", "add_0:0"}, {"feed2", "add_0:1"}, {"add_0:sum:0", "add"}}, {});
}
TEST_F(CApiFunctionTest, OneOp_TwoInputs_ZeroOutputs) {
/*
* | |
* v v
* add
*
* (output ignored)
*/
// Define
TF_Operation* feed1 = Placeholder(func_graph_, s_, "feed1");
TF_Operation* feed2 = Placeholder(func_graph_, s_, "feed2");
Add(feed1, feed2, func_graph_, s_);
Define(-1, {}, {feed1, feed2}, {}, {});
// Use, run, and verify
TF_Operation* two = ScalarConst(2, host_graph_, s_);
TF_Operation* func_feed = Placeholder(host_graph_, s_);
Use({two, func_feed});
VerifyFDef({"add"}, M({{"feed1"}, {"feed2"}}), {},
{{"feed1", "add:0"}, {"feed2", "add:1"}}, {});
}
TEST_F(CApiFunctionTest, TwoOps_ThreeInputs_OneOutput) {
/*
* | | |
* v v /
* add1 /
* | |
* v v
* add2
* |
* v
*/
// Define
TF_Operation* feed1 = Placeholder(func_graph_, s_, "feed1");
TF_Operation* feed2 = Placeholder(func_graph_, s_, "feed2");
TF_Operation* feed3 = Placeholder(func_graph_, s_, "feed3");
TF_Operation* add1 = Add(feed1, feed2, func_graph_, s_, "add1");
TF_Operation* add2 = Add(add1, feed3, func_graph_, s_, "add2");
Define(-1, {}, {feed1, feed2, feed3}, {add2}, {});
// Use, run, and verify
TF_Operation* two = ScalarConst(2, host_graph_, s_, "two");
TF_Operation* ten = ScalarConst(10, host_graph_, s_, "ten");
TF_Operation* func_feed = Placeholder(host_graph_, s_);
TF_Operation* func_op = Use({two, ten, func_feed});
Run({{func_feed, Int32Tensor(3)}}, func_op, 2 + 10 + 3);
VerifyFDef({"add1", "add2_0"}, M({{"feed1"}, {"feed2"}, {"feed3"}}),
M({{"add2"}}),
{{"feed1", "add1:0"},
{"feed2", "add1:1"},
{"add1:sum:0", "add2_0:0"},
{"feed3", "add2_0:1"},
{"add2_0:sum:0", "add2"}},
{});
}
TEST_F(CApiFunctionTest, OneOp_TwoInputs_TwoDuplicateOutputs) {
/*
* | |
* v v
* add
* |
* +-+-+
* | |
* v v
*/
// Define
TF_Operation* feed1 = Placeholder(func_graph_, s_, "feed1");
TF_Operation* feed2 = Placeholder(func_graph_, s_, "feed2");
TF_Operation* add = Add(feed1, feed2, func_graph_, s_);
Define(-1, {}, {feed1, feed2}, {add, add}, {});
// Use, run, and verify
TF_Operation* two = ScalarConst(2, host_graph_, s_);
TF_Operation* func_feed = Placeholder(host_graph_, s_);
TF_Operation* func_op = Use({two, func_feed});
Run({{func_feed, Int32Tensor(3)}}, {{func_op, 0}, {func_op, 1}}, {5, 5});
VerifyFDef({"add_1"}, M({{"feed1"}, {"feed2"}}), M({{"add"}, {"add_0"}}),
{{"feed1", "add_1:0"},
{"feed2", "add_1:1"},
{"add_1:sum:0", "add"},
{"add_1:sum:0", "add_0"}},
{});
}
TEST_F(CApiFunctionTest, TwoDuplicateOutputs_OutputNames) {
/*
* | |
* v v
* add
* |
* +-+-+
* | |
* v v
*/
// Define
TF_Operation* feed1 = Placeholder(func_graph_, s_, "feed1");
TF_Operation* feed2 = Placeholder(func_graph_, s_, "feed2");
TF_Operation* add = Add(feed1, feed2, func_graph_, s_);
Define(-1, {}, {feed1, feed2}, {add, add}, {"out1", "out2"});
// Use, run, and verify
TF_Operation* two = ScalarConst(2, host_graph_, s_);
TF_Operation* func_feed = Placeholder(host_graph_, s_);
TF_Operation* func_op = Use({two, func_feed});
Run({{func_feed, Int32Tensor(3)}}, {{func_op, 0}, {func_op, 1}}, {5, 5});
VerifyFDef({"add"}, M({{"feed1"}, {"feed2"}}), M({{"out1"}, {"out2"}}),
{{"feed1", "add:0"},
{"feed2", "add:1"},
{"add:sum:0", "out1"},
{"add:sum:0", "out2"}},
{});
}
TEST_F(CApiFunctionTest, TwoOps_ThreeInputs_TwoOutputs) {
/*
* | | |
* v v /
* add /
* | |
* +-+ |
* | | |
* | v v
* | add
* | |
* v v
*/
// Define
TF_Operation* feed1 = Placeholder(func_graph_, s_, "feed1");
TF_Operation* feed2 = Placeholder(func_graph_, s_, "feed2");
TF_Operation* feed3 = Placeholder(func_graph_, s_, "feed3");
TF_Operation* add1 = Add(feed1, feed2, func_graph_, s_, "add1");
TF_Operation* add2 = Add(add1, feed3, func_graph_, s_, "add2");
Define(-1, {}, {feed1, feed2, feed3}, {add1, add2}, {});
// Use, run, and verify
TF_Operation* two = ScalarConst(2, host_graph_, s_, "two");
TF_Operation* ten = ScalarConst(10, host_graph_, s_, "ten");
TF_Operation* func_feed = Placeholder(host_graph_, s_);
TF_Operation* func_op = Use({two, ten, func_feed});
Run({{func_feed, Int32Tensor(3)}}, {{func_op, 0}, {func_op, 1}}, {12, 15});
VerifyFDef({"add1_0", "add2_0"}, M({{"feed1"}, {"feed2"}, {"feed3"}}),
M({{"add1"}, {"add2"}}),
{{"feed1", "add1_0:0"},
{"feed2", "add1_0:1"},
{"add1_0:sum:0", "add2_0:0"},
{"feed3", "add2_0:1"},
{"add1_0:sum:0", "add1"},
{"add2_0:sum:0", "add2"}},
{});
}
TEST_F(CApiFunctionTest, FromSubsetOfOps) {
/*
* | | |
* v v /
* add /
* | |
* +---+--+---+
* Ops used | | | |
* for func | v v |
* | | add |
* +-------> | | |
* | v |
* | |
* +----------+
*/
// Define
TF_Operation* feed1 = Placeholder(func_graph_, s_, "feed1");
TF_Operation* feed2 = Placeholder(func_graph_, s_, "feed2");
TF_Operation* feed3 = Placeholder(func_graph_, s_, "feed3");
TF_Operation* add1 = Add(feed1, feed2, func_graph_, s_, "add1");
TF_Operation* add2 = Add(add1, feed3, func_graph_, s_, "add2");
Define(1, {add2}, {add1, feed3}, {add2}, {});
// Use, run, and verify
TF_Operation* two = ScalarConst(2, host_graph_, s_, "two");
TF_Operation* func_feed = Placeholder(host_graph_, s_);
TF_Operation* func_op = Use({two, func_feed});
Run({{func_feed, Int32Tensor(3)}}, func_op, 2 + 3);
VerifyFDef(
{"add2_0"}, M({{"add1"}, {"feed3"}}), M({{"add2"}}),
{{"add1", "add2_0:0"}, {"feed3", "add2_0:1"}, {"add2_0:sum:0", "add2"}},
{});
}
TEST_F(CApiFunctionTest, UsingOneOutputOfSplit) {
/*
* feed
* |
* +---------+---+
* | const0 | |
* | | | |
* | v / |
* | split |
* | | | | |
* | v | v |
* | | |
* +------+------+
* |
* v
*
* Only the second output from split is used as function output
*/
// Define
TF_Operation* feed = Placeholder(func_graph_, s_);
TF_Operation* split = Split3(feed, func_graph_, s_);
DefineT(-1, {}, {{feed, 0}}, {{split, 1}}, {});
// Use, run, and verify
TF_Operation* func_feed = Placeholder(host_graph_, s_);
TF_Operation* func_op = Use({func_feed});
RunT({{func_feed, Int32Tensor({1, 2, 3, 4, 5, 6})}}, {{func_op, 0}},
{{3, 4}});
VerifyFDef({"split3_const0", "split3_0"}, M({{"feed"}}), M({{"split3"}}),
{{"split3_const0:output:0", "split3_0:0"},
{"feed", "split3_0:1"},
{"split3_0:output:1", "split3"}},
{});
}
TEST_F(CApiFunctionTest, UsingTwoOutputsOfSplit) {
/*
* feed
* |
* +---------+---+
* | const0 | |
* | | | |
* | v / |
* | split |
* | | | | |
* | | v | |
* | | | |
* +---+-----+---+
* | |
* v v
*
* Second output from split is not used as function output
*/
// Define
TF_Operation* feed = Placeholder(func_graph_, s_);
TF_Operation* split = Split3(feed, func_graph_, s_);
DefineT(-1, {}, {{feed, 0}}, {{split, 0}, {split, 2}}, {});
// Use, run, and verify
TF_Operation* func_feed = Placeholder(host_graph_, s_);
TF_Operation* func_op = Use({func_feed});
RunT({{func_feed, Int32Tensor({1, 2, 3, 4, 5, 6})}},
{{func_op, 0}, {func_op, 1}}, {{1, 2}, {5, 6}});
VerifyFDef({"split3_const0", "split3_1"}, M({{"feed"}}),
M({{"split3"}, {"split3_0"}}),
{{"split3_const0:output:0", "split3_1:0"},
{"feed", "split3_1:1"},
{"split3_1:output:0", "split3"},
{"split3_1:output:2", "split3_0"}},
{});
}
TEST_F(CApiFunctionTest, UsingTwoOutputsOfSplitAsInputs) {
/*
* |
* v
* split
* | | |
* | v |
* | |
* +---+-----+---+
* | | | |
* | v v |
* | add |
* | | |
* | | |
* +------+------+
* |
* v
*/
// Define
TF_Operation* feed = Placeholder(func_graph_, s_);
TF_Operation* split = Split3(feed, func_graph_, s_);
TF_Operation* add = Add({split, 0}, {split, 2}, func_graph_, s_);
ASSERT_EQ(TF_OK, TF_GetCode(s_)) << TF_Message(s_);
DefineT(1, {add}, {{split, 0}, {split, 2}}, {{add, 0}}, {});
// Use, run, and verify
TF_Operation* two = ScalarConst(2, host_graph_, s_, "two");
TF_Operation* func_feed = Placeholder(host_graph_, s_);
TF_Operation* func_op = Use({two, func_feed});
Run({{func_feed, Int32Tensor(3)}}, func_op, 2 + 3);
VerifyFDef(
{"add_0"}, M({{"split3"}, {"split3_0"}}), M({{"add"}}),
{{"split3", "add_0:0"}, {"split3_0", "add_0:1"}, {"add_0:sum:0", "add"}},
{});
}
TEST_F(CApiFunctionTest, NodesUsedInInputsMustHaveSingleOutput) {
/*
* |
* v
* split
* | | |
* | v |
* | |
* input --->| |<--- input
* | |
* v v
* add
* |
* |
* v
*/
// Define
TF_Tensor* tensor_123 = Int32Tensor({1, 2, 3});
TF_Operation* c = Const(tensor_123, func_graph_, s_, "const_array");
ASSERT_EQ(TF_OK, TF_GetCode(s_)) << TF_Message(s_);
TF_Operation* split = Split3(c, func_graph_, s_);
TF_Operation* add = Add({split, 0}, {split, 2}, func_graph_, s_);
ASSERT_EQ(TF_OK, TF_GetCode(s_)) << TF_Message(s_);
DefineT(-1, {}, {{split, 0}, {split, 2}}, {{add, 0}}, {}, true);
EXPECT_EQ(TF_INVALID_ARGUMENT, TF_GetCode(s_));
EXPECT_EQ(string("When `num_opers` is set to -1, nodes referenced in "
"`inputs` must have a single output. Node split3 has "
"3 outputs. Encountered while creating function 'MyFunc'"),
string(TF_Message(s_)));
TF_DeleteTensor(tensor_123);
}
TEST_F(CApiFunctionTest, FunctionWithWhileLoop) {
// Inputs to the while loop and the function as a whole
TF_Operation* feed1 = Placeholder(func_graph_, s_, "feed1");
TF_Operation* feed2 = Placeholder(func_graph_, s_, "feed2");
// Outputs of the while loop corresponding to the two inputs above
// The first one will the function's output
std::vector<TF_Output> outputs;
// Add while loop to func_graph_
{
// The inputs to the while loop
std::vector<TF_Output> inputs = {{feed1, 0}, {feed2, 0}};
std::unique_ptr<TF_WhileParams> params(new TF_WhileParams(
TF_NewWhile(func_graph_, &inputs[0], inputs.size(), s_)));
ASSERT_EQ(TF_OK, TF_GetCode(s_)) << TF_Message(s_);
params->name = "test_loop";
// Initialize outputs so we can easily detect errors/bugs
outputs.resize(2, {nullptr, -1});
// Create loop: while (input1 < input2) input1 += input2 + 1
TF_Operation* less_than = LessThan(
params->cond_inputs[0], params->cond_inputs[1], params->cond_graph, s_);
ASSERT_EQ(TF_OK, TF_GetCode(s_)) << TF_Message(s_);
params->cond_output = {less_than, 0};
TF_Operation* add1 = Add(params->body_inputs[0], params->body_inputs[1],
params->body_graph, s_, "add1");
ASSERT_EQ(TF_OK, TF_GetCode(s_)) << TF_Message(s_);
TF_Operation* one = ScalarConst(1, params->body_graph, s_);
ASSERT_EQ(TF_OK, TF_GetCode(s_)) << TF_Message(s_);
TF_Operation* add2 = Add(add1, one, params->body_graph, s_, "add2");
ASSERT_EQ(TF_OK, TF_GetCode(s_)) << TF_Message(s_);
params->body_outputs[0] = {add2, 0};
params->body_outputs[1] = params->body_inputs[1];
// Finalize while loop
TF_FinishWhile(params.get(), s_, &outputs[0]);
EXPECT_EQ(TF_OK, TF_GetCode(s_)) << TF_Message(s_);
}
// Define function, use it in graph, and run
DefineT(-1, {}, {{feed1, 0}, {feed2, 0}}, {outputs[0]}, {});
TF_Operation* five = ScalarConst(5, host_graph_, s_, "five");
TF_Operation* func_feed = Placeholder(host_graph_, s_);
TF_Operation* func_op = Use({func_feed, five});
Run({{func_feed, Int32Tensor(2)}}, func_op, 2 /*+=*/ + 5 + 1);
// Verify input, output, and subset of edges in fdef.
// The subset of edges we verify is a chain between feed1 and output to
// make sure that the correct output is picked.
tensorflow::FunctionDef fdef;
ASSERT_TRUE(GetFunctionDef(func_, &fdef));
VerifyFDefInputs(fdef, M({{"feed1"}, {"feed2"}}));
VerifyFDefOutputs(fdef, M({{"test_loop_exit"}}));
VerifyFDefEdges(fdef,
{{"feed1", "test_loop/Enter:0"},
{"test_loop/Enter:output:0", "test_loop/Merge:0"},
{"test_loop/Merge:output:0", "test_loop/Switch:0"},
{"test_loop/Switch:output_false:0", "test_loop/Exit:0"},
{"test_loop/Exit:output:0", "test_loop_exit"}},
{}, false);
}
TEST_F(CApiFunctionTest, ControlDependency) {
/*
* | | scalar
* | | .
* v v . <---- control dependency
* add < -
* |
* v
*/
// Define
TF_Operation* feed1 = Placeholder(func_graph_, s_, "feed1");
TF_Operation* feed2 = Placeholder(func_graph_, s_, "feed2");
TF_Operation* five = ScalarConst(5, func_graph_, s_);
TF_Operation* add =
AddWithCtrlDependency(feed1, feed2, func_graph_, five, s_);
EXPECT_EQ(TF_OK, TF_GetCode(s_)) << TF_Message(s_);
Define(-1, {}, {feed1, feed2}, {add}, {});
// Use, run, and verify
TF_Operation* two = ScalarConst(2, host_graph_, s_);
TF_Operation* func_feed = Placeholder(host_graph_, s_);
TF_Operation* func_op = Use({two, func_feed});
Run({{func_feed, Int32Tensor(3)}}, func_op, 2 + 3);
VerifyFDef(
{"add_0", "scalar"}, M({{"feed1"}, {"feed2"}}), M({{"add"}}),
{{"feed1", "add_0:0"}, {"feed2", "add_0:1"}, {"add_0:sum:0", "add"}},
{{"^scalar", "add_0:2"}});
}
TEST_F(CApiFunctionTest, ControlDependencyOutsideOfBody) {
/*
* | | scalar