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