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#include "tensorflow/core/framework/tensor_slice.h"
#include "tensorflow/core/platform/protobuf.h"
#include "tensorflow/core/platform/logging.h"
#include <gtest/gtest.h>
#include "tensorflow/core/lib/core/status_test_util.h"
namespace tensorflow {
namespace {
// Basic tests
TEST(TensorSliceTest, Basic) {
{
// Repeatedly setting FullSlice should work.
TensorSlice s(3);
EXPECT_EQ("-:-:-", s.DebugString());
s.SetFullSlice(4);
EXPECT_EQ("-:-:-:-", s.DebugString());
}
}
// Testing for serialization and parsing for the string format of slices.
TEST(TensorSliceTest, Serialization) {
// Serialization
{
TensorSlice s({{0, -1}, {0, 10}, {14, 1}, {0, -1}});
EXPECT_EQ("-:0,10:14,1:-", s.DebugString());
}
{
TensorSliceProto proto;
// Define ptxt outside ASSERT_TRUE call to work around bug in some
// versions of gcc that breaks when you use raw string literals
// inside macro expansions.
// See: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=55971
const char* ptxt = R"PROTO(
extent { }
extent { start: 0 length: 10 }
extent { start: 14 length: 1 }
extent { }
)PROTO";
ASSERT_TRUE(protobuf::TextFormat::ParseFromString(ptxt, &proto));
TensorSlice s(proto);
EXPECT_EQ("-:0,10:14,1:-", s.DebugString());
}
// Parsing
{
TensorSlice s = TensorSlice::ParseOrDie("-:-:1,3:4,5");
TensorSliceProto proto;
s.AsProto(&proto);
EXPECT_EQ(
"extent { } "
"extent { } "
"extent { start: 1 length: 3 } "
"extent { start: 4 length: 5 }",
proto.ShortDebugString());
}
// Failed parsing
{
TensorSlice slice;
Status s = TensorSlice::Parse("-:-:1,3:4:5", &slice);
EXPECT_EQ(
"Invalid argument: "
"Expected a pair of numbers or '-' but got '4': "
"string = -:-:1,3:4:5",
s.ToString());
}
{
TensorSlice slice;
Status s = TensorSlice::Parse("-:-1,3", &slice);
EXPECT_EQ(
"Invalid argument: "
"Expected non-negative start and positive length but got "
"start = -1, length = 3: string = -:-1,3",
s.ToString());
}
}
// Testing the slice intersection
TEST(TensorSliceTest, Intersection) {
// "EVERYTHING" intersects with everything
{
TensorSlice a = TensorSlice::ParseOrDie("-:-");
TensorSlice b = TensorSlice::ParseOrDie("1,2:3,4");
TensorSlice c;
EXPECT_TRUE(a.Intersect(b, &c));
EXPECT_EQ("1,2:3,4", c.DebugString());
}
{
TensorSlice a = TensorSlice::ParseOrDie("-:-");
TensorSlice b = TensorSlice::ParseOrDie("1,2:3,4");
TensorSlice c;
EXPECT_TRUE(b.Intersect(a, &c));
EXPECT_EQ("1,2:3,4", c.DebugString());
}
// Overlap at all dimensions
{
TensorSlice a = TensorSlice::ParseOrDie("1,5:2,6:3,7:5,10");
TensorSlice b = TensorSlice::ParseOrDie("1,2:3,4:9,10:12,1");
TensorSlice c;
EXPECT_TRUE(a.Intersect(b, &c));
EXPECT_EQ("1,2:3,4:9,1:12,1", c.DebugString());
}
// A mixture of everything and non-trivial slices
{
TensorSlice a = TensorSlice::ParseOrDie("-:1,1");
TensorSlice b = TensorSlice::ParseOrDie("-:0,2");
TensorSlice c;
EXPECT_TRUE(a.Intersect(b, &c));
EXPECT_EQ("-:1,1", c.DebugString());
}
// No overlap on dimension 3: "3,1" and "4,5" don't intersect
{
TensorSlice a = TensorSlice::ParseOrDie("1,2:3,1:5,6");
TensorSlice b = TensorSlice::ParseOrDie("1,3:4,5:1,6");
TensorSlice c;
EXPECT_FALSE(a.Intersect(b, &c));
EXPECT_EQ("", c.DebugString());
}
// No intersection when there are different dimensions
{
TensorSlice a = TensorSlice::ParseOrDie("1,2:3,1:-");
TensorSlice b = TensorSlice::ParseOrDie("-:-");
TensorSlice c;
EXPECT_FALSE(a.Intersect(b, &c));
EXPECT_EQ("", c.DebugString());
}
}
// Testing applying a slice to a tensor shape
TEST(TensorSliceTest, SliceTensorShape) {
// A proper application
{
TensorSlice a = TensorSlice::ParseOrDie("1,1:-:4,1:2,6");
TensorShape x({2, 4, 5, 8});
TensorShape y;
EXPECT_OK(a.SliceTensorShape(x, &y));
EXPECT_EQ(
"dim { size: 1 } "
"dim { size: 4 } "
"dim { size: 1 } "
"dim { size: 6 }",
y.DebugString());
}
// An invalid application -- dimension 2 is out of bound
{
TensorSlice a = TensorSlice::ParseOrDie("1,1:1,4:-:-");
TensorShape x({2, 4, 5, 8});
TensorShape y;
EXPECT_EQ(
"Internal: "
"Extent in dimension 1 out of bounds: "
"shape = dim { size: 2 } "
"dim { size: 4 } "
"dim { size: 5 } "
"dim { size: 8 }, "
"slice = 1,1:1,4:-:-",
a.SliceTensorShape(x, &y).ToString());
EXPECT_EQ("", y.DebugString());
}
}
// Testing the computation of relative slices.
TEST(TensorSliceTest, ComputeRelative) {
// Easy case: base is "everything"
{
TensorSlice base = TensorSlice::ParseOrDie("-:-:-:-");
TensorSlice sub = TensorSlice::ParseOrDie("-:1,2:-:3,4");
TensorSlice relative;
base.ComputeRelative(sub, &relative);
EXPECT_EQ("-:1,2:-:3,4", relative.DebugString());
}
// A slightly more complicated case
{
TensorSlice base = TensorSlice::ParseOrDie("1,2:3,4:-:5,1");
TensorSlice sub = TensorSlice::ParseOrDie("1,1:4,2:3,3:5,1");
TensorSlice relative;
base.ComputeRelative(sub, &relative);
EXPECT_EQ("0,1:1,2:3,3:0,1", relative.DebugString());
}
}
TEST(TensorSliceTest, ExtentLength) {
TensorSliceProto proto;
// Define ptxt outside ASSERT_TRUE call to work around bug in some
// versions of gcc that breaks when you use raw string literals
// inside macro expansions.
// See: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=55971
const char* ptxt = R"PROTO(
extent { }
extent { start: 0 length: 10 }
extent { start: 14 length: 1 }
extent { }
)PROTO";
ASSERT_TRUE(protobuf::TextFormat::ParseFromString(ptxt, &proto));
EXPECT_FALSE(TensorSlice::HasExtentLength(proto.extent(0)));
EXPECT_TRUE(TensorSlice::HasExtentLength(proto.extent(1)));
EXPECT_TRUE(TensorSlice::HasExtentLength(proto.extent(2)));
EXPECT_FALSE(TensorSlice::HasExtentLength(proto.extent(3)));
EXPECT_EQ(-1, TensorSlice::GetExtentLength(proto.extent(0)));
EXPECT_EQ(10, TensorSlice::GetExtentLength(proto.extent(1)));
EXPECT_EQ(1, TensorSlice::GetExtentLength(proto.extent(2)));
EXPECT_EQ(-1, TensorSlice::GetExtentLength(proto.extent(3)));
}
TEST(TensorSliceTest, Deserialization) {
// Serialization of
// extent { length: 5 }
// extent { start: 0 length: 10 }
// extent { start: 14 length: 1 }
// extent { start: 1 }
// extent { }
// in proto2 and proto3:
const char pb2[] =
"\x0A\x02\x10\x05\x0A\x04\x08\x00"
"\x10\x0A\x0A\x04\x08\x0E\x10\x01\x0A\x02\x08\x01\x0A\x00";
const char pb3[] =
"\x0A\x02\x10\x05\x0A\x02"
"\x10\x0A\x0A\x04\x08\x0E\x10\x01\x0A\x02\x08\x01\x0A\x00";
// (The difference is that in the proto3 version, "start: 0" isn't included
// since 0 is start's default value.)
TensorSliceProto proto2;
ASSERT_TRUE(proto2.ParseFromArray(pb2, sizeof(pb2) - 1));
TensorSlice ts2(proto2);
TensorSliceProto proto3;
ASSERT_TRUE(proto3.ParseFromArray(pb3, sizeof(pb3) - 1));
TensorSlice ts3(proto3);
// Both serializations should be interpreted the same.
EXPECT_EQ("0,5:0,10:14,1:-:-", ts2.DebugString());
EXPECT_EQ("0,5:0,10:14,1:-:-", ts3.DebugString());
}
} // namespace
} // namespace tensorflow
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