No puede seleccionar más de 25 temas
Los temas deben comenzar con una letra o número, pueden incluir guiones ('-') y pueden tener hasta 35 caracteres de largo.
140 líneas
5.0 KiB
140 líneas
5.0 KiB
// Copyright (c) 2018 The LevelDB Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style license that can be
|
|
// found in the LICENSE file. See the AUTHORS file for names of contributors.
|
|
|
|
#include "util/logging.h"
|
|
|
|
#include <limits>
|
|
#include <string>
|
|
|
|
#include "gtest/gtest.h"
|
|
#include "leveldb/slice.h"
|
|
|
|
namespace leveldb {
|
|
|
|
TEST(Logging, NumberToString) {
|
|
ASSERT_EQ("0", NumberToString(0));
|
|
ASSERT_EQ("1", NumberToString(1));
|
|
ASSERT_EQ("9", NumberToString(9));
|
|
|
|
ASSERT_EQ("10", NumberToString(10));
|
|
ASSERT_EQ("11", NumberToString(11));
|
|
ASSERT_EQ("19", NumberToString(19));
|
|
ASSERT_EQ("99", NumberToString(99));
|
|
|
|
ASSERT_EQ("100", NumberToString(100));
|
|
ASSERT_EQ("109", NumberToString(109));
|
|
ASSERT_EQ("190", NumberToString(190));
|
|
ASSERT_EQ("123", NumberToString(123));
|
|
ASSERT_EQ("12345678", NumberToString(12345678));
|
|
|
|
static_assert(std::numeric_limits<uint64_t>::max() == 18446744073709551615U,
|
|
"Test consistency check");
|
|
ASSERT_EQ("18446744073709551000", NumberToString(18446744073709551000U));
|
|
ASSERT_EQ("18446744073709551600", NumberToString(18446744073709551600U));
|
|
ASSERT_EQ("18446744073709551610", NumberToString(18446744073709551610U));
|
|
ASSERT_EQ("18446744073709551614", NumberToString(18446744073709551614U));
|
|
ASSERT_EQ("18446744073709551615", NumberToString(18446744073709551615U));
|
|
}
|
|
|
|
void ConsumeDecimalNumberRoundtripTest(uint64_t number,
|
|
const std::string& padding = "") {
|
|
std::string decimal_number = NumberToString(number);
|
|
std::string input_string = decimal_number + padding;
|
|
Slice input(input_string);
|
|
Slice output = input;
|
|
uint64_t result;
|
|
ASSERT_TRUE(ConsumeDecimalNumber(&output, &result));
|
|
ASSERT_EQ(number, result);
|
|
ASSERT_EQ(decimal_number.size(), output.data() - input.data());
|
|
ASSERT_EQ(padding.size(), output.size());
|
|
}
|
|
|
|
TEST(Logging, ConsumeDecimalNumberRoundtrip) {
|
|
ConsumeDecimalNumberRoundtripTest(0);
|
|
ConsumeDecimalNumberRoundtripTest(1);
|
|
ConsumeDecimalNumberRoundtripTest(9);
|
|
|
|
ConsumeDecimalNumberRoundtripTest(10);
|
|
ConsumeDecimalNumberRoundtripTest(11);
|
|
ConsumeDecimalNumberRoundtripTest(19);
|
|
ConsumeDecimalNumberRoundtripTest(99);
|
|
|
|
ConsumeDecimalNumberRoundtripTest(100);
|
|
ConsumeDecimalNumberRoundtripTest(109);
|
|
ConsumeDecimalNumberRoundtripTest(190);
|
|
ConsumeDecimalNumberRoundtripTest(123);
|
|
ASSERT_EQ("12345678", NumberToString(12345678));
|
|
|
|
for (uint64_t i = 0; i < 100; ++i) {
|
|
uint64_t large_number = std::numeric_limits<uint64_t>::max() - i;
|
|
ConsumeDecimalNumberRoundtripTest(large_number);
|
|
}
|
|
}
|
|
|
|
TEST(Logging, ConsumeDecimalNumberRoundtripWithPadding) {
|
|
ConsumeDecimalNumberRoundtripTest(0, " ");
|
|
ConsumeDecimalNumberRoundtripTest(1, "abc");
|
|
ConsumeDecimalNumberRoundtripTest(9, "x");
|
|
|
|
ConsumeDecimalNumberRoundtripTest(10, "_");
|
|
ConsumeDecimalNumberRoundtripTest(11, std::string("\0\0\0", 3));
|
|
ConsumeDecimalNumberRoundtripTest(19, "abc");
|
|
ConsumeDecimalNumberRoundtripTest(99, "padding");
|
|
|
|
ConsumeDecimalNumberRoundtripTest(100, " ");
|
|
|
|
for (uint64_t i = 0; i < 100; ++i) {
|
|
uint64_t large_number = std::numeric_limits<uint64_t>::max() - i;
|
|
ConsumeDecimalNumberRoundtripTest(large_number, "pad");
|
|
}
|
|
}
|
|
|
|
void ConsumeDecimalNumberOverflowTest(const std::string& input_string) {
|
|
Slice input(input_string);
|
|
Slice output = input;
|
|
uint64_t result;
|
|
ASSERT_EQ(false, ConsumeDecimalNumber(&output, &result));
|
|
}
|
|
|
|
TEST(Logging, ConsumeDecimalNumberOverflow) {
|
|
static_assert(std::numeric_limits<uint64_t>::max() == 18446744073709551615U,
|
|
"Test consistency check");
|
|
ConsumeDecimalNumberOverflowTest("18446744073709551616");
|
|
ConsumeDecimalNumberOverflowTest("18446744073709551617");
|
|
ConsumeDecimalNumberOverflowTest("18446744073709551618");
|
|
ConsumeDecimalNumberOverflowTest("18446744073709551619");
|
|
ConsumeDecimalNumberOverflowTest("18446744073709551620");
|
|
ConsumeDecimalNumberOverflowTest("18446744073709551621");
|
|
ConsumeDecimalNumberOverflowTest("18446744073709551622");
|
|
ConsumeDecimalNumberOverflowTest("18446744073709551623");
|
|
ConsumeDecimalNumberOverflowTest("18446744073709551624");
|
|
ConsumeDecimalNumberOverflowTest("18446744073709551625");
|
|
ConsumeDecimalNumberOverflowTest("18446744073709551626");
|
|
|
|
ConsumeDecimalNumberOverflowTest("18446744073709551700");
|
|
|
|
ConsumeDecimalNumberOverflowTest("99999999999999999999");
|
|
}
|
|
|
|
void ConsumeDecimalNumberNoDigitsTest(const std::string& input_string) {
|
|
Slice input(input_string);
|
|
Slice output = input;
|
|
uint64_t result;
|
|
ASSERT_EQ(false, ConsumeDecimalNumber(&output, &result));
|
|
ASSERT_EQ(input.data(), output.data());
|
|
ASSERT_EQ(input.size(), output.size());
|
|
}
|
|
|
|
TEST(Logging, ConsumeDecimalNumberNoDigits) {
|
|
ConsumeDecimalNumberNoDigitsTest("");
|
|
ConsumeDecimalNumberNoDigitsTest(" ");
|
|
ConsumeDecimalNumberNoDigitsTest("a");
|
|
ConsumeDecimalNumberNoDigitsTest(" 123");
|
|
ConsumeDecimalNumberNoDigitsTest("a123");
|
|
ConsumeDecimalNumberNoDigitsTest(std::string("\000123", 4));
|
|
ConsumeDecimalNumberNoDigitsTest(std::string("\177123", 4));
|
|
ConsumeDecimalNumberNoDigitsTest(std::string("\377123", 4));
|
|
}
|
|
|
|
} // namespace leveldb
|