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/* Copyright 2015 Google Inc. 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/core/lib/strings/numbers.h"
#include <string>
#include "testing/base/public/gunit.h"
namespace tensorflow {
namespace strings {
// NOTE: most of the routines in numbers.h are tested indirectly through
// strcat_test.cc in this directory.
// Test StrCat of ints and longs of various sizes and signdedness.
TEST(FpToString, Ints) {
for (int s = 0; s < 64; s++) {
for (int delta = -1; delta <= 1; delta++) {
uint64 fp = (1ull << s) + delta;
string s = FpToString(fp);
uint64 fp2;
EXPECT_TRUE(StringToFp(s, &fp2));
EXPECT_EQ(fp, fp2);
}
}
Fprint dummy;
EXPECT_FALSE(StringToFp("", &dummy));
EXPECT_FALSE(StringToFp("xyz", &dummy));
EXPECT_FALSE(StringToFp("0000000000000000xyz", &dummy));
}
TEST(HumanReadableNumBytes, Bytes) {
EXPECT_EQ("0B", HumanReadableNumBytes(0));
EXPECT_EQ("4B", HumanReadableNumBytes(4));
EXPECT_EQ("1023B", HumanReadableNumBytes(1023));
EXPECT_EQ("1.0KiB", HumanReadableNumBytes(1024));
EXPECT_EQ("1.0KiB", HumanReadableNumBytes(1025));
EXPECT_EQ("1.5KiB", HumanReadableNumBytes(1500));
EXPECT_EQ("1.9KiB", HumanReadableNumBytes(1927));
EXPECT_EQ("2.0KiB", HumanReadableNumBytes(2048));
EXPECT_EQ("1.00MiB", HumanReadableNumBytes(1 << 20));
EXPECT_EQ("11.77MiB", HumanReadableNumBytes(12345678));
EXPECT_EQ("1.00GiB", HumanReadableNumBytes(1 << 30));
EXPECT_EQ("1.00TiB", HumanReadableNumBytes(1LL << 40));
EXPECT_EQ("1.00PiB", HumanReadableNumBytes(1LL << 50));
EXPECT_EQ("1.00EiB", HumanReadableNumBytes(1LL << 60));
// Try a few negative numbers
EXPECT_EQ("-1B", HumanReadableNumBytes(-1));
EXPECT_EQ("-4B", HumanReadableNumBytes(-4));
EXPECT_EQ("-1000B", HumanReadableNumBytes(-1000));
EXPECT_EQ("-11.77MiB", HumanReadableNumBytes(-12345678));
EXPECT_EQ("-8E", HumanReadableNumBytes(kint64min));
}
TEST(safe_strto32, Int32s) {
int32 result;
EXPECT_EQ(true, safe_strto32("1", &result));
EXPECT_EQ(1, result);
EXPECT_EQ(true, safe_strto32("123", &result));
EXPECT_EQ(123, result);
EXPECT_EQ(true, safe_strto32(" -123 ", &result));
EXPECT_EQ(-123, result);
EXPECT_EQ(true, safe_strto32("2147483647", &result));
EXPECT_EQ(2147483647, result);
EXPECT_EQ(true, safe_strto32("-2147483648", &result));
EXPECT_EQ(-2147483648, result);
// Invalid argument
EXPECT_EQ(false, safe_strto32(" 132as ", &result));
EXPECT_EQ(false, safe_strto32(" 132.2 ", &result));
EXPECT_EQ(false, safe_strto32(" -", &result));
EXPECT_EQ(false, safe_strto32("", &result));
EXPECT_EQ(false, safe_strto32(" ", &result));
EXPECT_EQ(false, safe_strto32("123 a", &result));
// Overflow
EXPECT_EQ(false, safe_strto32("2147483648", &result));
EXPECT_EQ(false, safe_strto32("-2147483649", &result));
}
TEST(safe_strto64, Int64s) {
int64 result;
EXPECT_EQ(true, safe_strto64("1", &result));
EXPECT_EQ(1, result);
EXPECT_EQ(true, safe_strto64("123", &result));
EXPECT_EQ(123, result);
EXPECT_EQ(true, safe_strto64(" -123 ", &result));
EXPECT_EQ(-123, result);
EXPECT_EQ(true, safe_strto64("9223372036854775807", &result));
EXPECT_EQ(9223372036854775807, result);
EXPECT_EQ(true, safe_strto64("-9223372036854775808", &result));
// kint64min == -9223372036854775808
// Use -9223372036854775808 directly results in out of range error
EXPECT_EQ(kint64min, result);
// Invalid argument
EXPECT_EQ(false, safe_strto64(" 132as ", &result));
EXPECT_EQ(false, safe_strto64(" 132.2 ", &result));
EXPECT_EQ(false, safe_strto64(" -", &result));
EXPECT_EQ(false, safe_strto64("", &result));
EXPECT_EQ(false, safe_strto64(" ", &result));
EXPECT_EQ(false, safe_strto64("123 a", &result));
// Overflow
EXPECT_EQ(false, safe_strto64("9223372036854775808", &result));
EXPECT_EQ(false, safe_strto64("-9223372036854775809", &result));
}
} // namespace strings
} // namespace tensorflow
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