fmt/test/string-test.cc
2017-01-22 10:00:34 -08:00

85 lines
1.9 KiB
C++

/*
Tests of string utilities
Copyright (c) 2012 - 2016, Victor Zverovich
All rights reserved.
For the license information refer to format.h.
*/
#include "fmt/string.h"
#include "gtest/gtest.h"
using fmt::internal::StringBuffer;
TEST(StringBufferTest, Empty) {
StringBuffer<char> buffer;
EXPECT_EQ(0, buffer.size());
EXPECT_EQ(0, buffer.capacity());
std::string data;
// std::string may have initial capacity.
std::size_t capacity = data.capacity();
buffer.move_to(data);
EXPECT_EQ("", data);
EXPECT_EQ(capacity, data.capacity());
}
TEST(StringBufferTest, Reserve) {
StringBuffer<char> buffer;
std::size_t capacity = std::string().capacity() + 10;
buffer.reserve(capacity);
EXPECT_EQ(0, buffer.size());
EXPECT_EQ(capacity, buffer.capacity());
std::string data;
buffer.move_to(data);
EXPECT_EQ("", data);
}
TEST(StringBufferTest, Resize) {
StringBuffer<char> buffer;
std::size_t size = std::string().capacity() + 10;
buffer.resize(size);
EXPECT_EQ(size, buffer.size());
EXPECT_EQ(size, buffer.capacity());
std::string data;
buffer.move_to(data);
EXPECT_EQ(size, data.size());
}
TEST(StringBufferTest, MoveTo) {
StringBuffer<char> buffer;
std::size_t size = std::string().capacity() + 10;
buffer.resize(size);
const char *p = &buffer[0];
std::string data;
buffer.move_to(data);
EXPECT_EQ(p, &data[0]);
EXPECT_EQ(0, buffer.size());
EXPECT_EQ(0, buffer.capacity());
}
TEST(StringWriterTest, MoveTo) {
fmt::StringWriter out;
out.write("The answer is ");
out.write(42);
out.write("\n");
std::string s;
out.move_to(s);
EXPECT_EQ("The answer is 42\n", s);
EXPECT_EQ(0, out.size());
}
TEST(StringWriterTest, WString) {
fmt::WStringWriter out;
out.write("The answer is ");
out.write(42);
out.write("\n");
std::wstring s;
out.move_to(s);
EXPECT_EQ(L"The answer is 42\n", s);
}
TEST(StringTest, ToString) {
EXPECT_EQ("42", fmt::to_string(42));
}