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#include "tensorflow/core/util/events_writer.h"
#include <math.h>
#include "tensorflow/core/lib/core/errors.h"
#include "tensorflow/core/lib/core/status_test_util.h"
#include "tensorflow/core/lib/io/path.h"
#include "tensorflow/core/lib/io/record_reader.h"
#include "tensorflow/core/lib/strings/strcat.h"
#include "tensorflow/core/platform/logging.h"
#include "tensorflow/core/platform/protobuf.h"
#include "tensorflow/core/platform/protobuf.h"
#include "tensorflow/core/platform/test.h"
#include "tensorflow/core/public/env.h"
#include "tensorflow/core/public/status.h"
#include "tensorflow/core/util/event.pb.h"
namespace tensorflow {
namespace {
// shorthand
Env* env() { return Env::Default(); }
void WriteSimpleValue(EventsWriter* writer, double wall_time, int64 step,
const string& tag, float simple_value) {
Event event;
event.set_wall_time(wall_time);
event.set_step(step);
Summary::Value* summ_val = event.mutable_summary()->add_value();
summ_val->set_tag(tag);
summ_val->set_simple_value(simple_value);
writer->WriteEvent(event);
}
void WriteFile(EventsWriter* writer) {
WriteSimpleValue(writer, 1234, 34, "foo", 3.14159);
WriteSimpleValue(writer, 2345, 35, "bar", -42);
}
static bool ReadEventProto(io::RecordReader* reader, uint64* offset,
Event* proto) {
string record;
Status s = reader->ReadRecord(offset, &record);
if (!s.ok()) {
return false;
}
return ParseProtoUnlimited(proto, record);
}
void VerifyFile(const string& filename) {
CHECK(env()->FileExists(filename));
RandomAccessFile* event_file;
TF_CHECK_OK(env()->NewRandomAccessFile(filename, &event_file));
io::RecordReader* reader = new io::RecordReader(event_file);
uint64 offset = 0;
Event actual;
CHECK(ReadEventProto(reader, &offset, &actual));
VLOG(1) << actual.ShortDebugString();
// Wall time should be within 5s of now.
double current_time = env()->NowMicros() / 1000000.0;
EXPECT_LT(fabs(actual.wall_time() - current_time), 5);
// Should have the current version number.
EXPECT_EQ(actual.file_version(),
strings::StrCat(EventsWriter::kVersionPrefix,
EventsWriter::kCurrentVersion));
Event expected;
CHECK(ReadEventProto(reader, &offset, &actual));
VLOG(1) << actual.ShortDebugString();
ASSERT_TRUE(protobuf::TextFormat::ParseFromString(
"wall_time: 1234 step: 34 "
"summary { value { tag: 'foo' simple_value: 3.14159 } }",
&expected));
// TODO(keveman): Enable this check
// EXPECT_THAT(expected, EqualsProto(actual));
CHECK(ReadEventProto(reader, &offset, &actual));
VLOG(1) << actual.ShortDebugString();
ASSERT_TRUE(protobuf::TextFormat::ParseFromString(
"wall_time: 2345 step: 35 "
"summary { value { tag: 'bar' simple_value: -42 } }",
&expected));
// TODO(keveman): Enable this check
// EXPECT_THAT(expected, EqualsProto(actual));
TF_CHECK_OK(env()->DeleteFile(filename));
delete reader;
delete event_file;
}
string GetDirName(const string& suffix) {
return io::JoinPath(testing::TmpDir(), suffix);
}
TEST(EventWriter, WriteFlush) {
string file_prefix = GetDirName("/writeflush_test");
EventsWriter writer(file_prefix);
WriteFile(&writer);
EXPECT_TRUE(writer.Flush());
string filename = writer.FileName();
VerifyFile(filename);
}
TEST(EventWriter, WriteClose) {
string file_prefix = GetDirName("/writeclose_test");
EventsWriter writer(file_prefix);
WriteFile(&writer);
EXPECT_TRUE(writer.Close());
string filename = writer.FileName();
VerifyFile(filename);
}
TEST(EventWriter, WriteDelete) {
string file_prefix = GetDirName("/writedelete_test");
EventsWriter* writer = new EventsWriter(file_prefix);
WriteFile(writer);
string filename = writer->FileName();
delete writer;
VerifyFile(filename);
}
TEST(EventWriter, FailFlush) {
string file_prefix = GetDirName("/failflush_test");
EventsWriter writer(file_prefix);
string filename = writer.FileName();
WriteFile(&writer);
EXPECT_TRUE(env()->FileExists(filename));
env()->DeleteFile(filename);
EXPECT_FALSE(env()->FileExists(filename));
EXPECT_FALSE(writer.Flush());
EXPECT_FALSE(env()->FileExists(filename));
}
TEST(EventWriter, FailClose) {
string file_prefix = GetDirName("/failclose_test");
EventsWriter writer(file_prefix);
string filename = writer.FileName();
WriteFile(&writer);
EXPECT_TRUE(env()->FileExists(filename));
env()->DeleteFile(filename);
EXPECT_FALSE(env()->FileExists(filename));
EXPECT_FALSE(writer.Close());
EXPECT_FALSE(env()->FileExists(filename));
}
TEST(EventWriter, InitWriteClose) {
string file_prefix = GetDirName("/initwriteclose_test");
EventsWriter writer(file_prefix);
EXPECT_TRUE(writer.Init());
string filename0 = writer.FileName();
EXPECT_TRUE(env()->FileExists(filename0));
WriteFile(&writer);
EXPECT_TRUE(writer.Close());
string filename1 = writer.FileName();
EXPECT_EQ(filename0, filename1);
VerifyFile(filename1);
}
TEST(EventWriter, NameWriteClose) {
string file_prefix = GetDirName("/namewriteclose_test");
EventsWriter writer(file_prefix);
string filename = writer.FileName();
EXPECT_TRUE(env()->FileExists(filename));
WriteFile(&writer);
EXPECT_TRUE(writer.Close());
VerifyFile(filename);
}
TEST(EventWriter, NameClose) {
string file_prefix = GetDirName("/nameclose_test");
EventsWriter writer(file_prefix);
string filename = writer.FileName();
EXPECT_TRUE(writer.Close());
EXPECT_TRUE(env()->FileExists(filename));
env()->DeleteFile(filename);
}
TEST(EventWriter, FileDeletionBeforeWriting) {
string file_prefix = GetDirName("/fdbw_test");
EventsWriter writer(file_prefix);
string filename0 = writer.FileName();
EXPECT_TRUE(env()->FileExists(filename0));
env()->SleepForMicroseconds(
2000000); // To make sure timestamp part of filename will differ.
env()->DeleteFile(filename0);
EXPECT_TRUE(writer.Init()); // Init should reopen file.
WriteFile(&writer);
EXPECT_TRUE(writer.Flush());
string filename1 = writer.FileName();
EXPECT_NE(filename0, filename1);
VerifyFile(filename1);
}
} // namespace
} // namespace tensorflow
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