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ruc/test/unit/testutilformat.cpp

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/*
* Copyright (C) 2022 Riyyi
*
* SPDX-License-Identifier: MIT
*/
#include <cstddef> // size_t
#include <cstdint> // int8_t, int16_t, int32_t, int64_t, uint8_t, uint16_t, uint32_t
#include <map>
#include <sstream> // stringstream
#include <string>
#include <unordered_map>
#include <vector>
#include "macro.h"
#include "ruc/format/format.h"
#include "testcase.h"
#include "testsuite.h"
// -----------------------------------------
TEST_CASE(FormatIntegral)
{
std::string result;
// Signed
int8_t i8 = 127; // char
result = format("{}", i8);
EXPECT_EQ(result, "127");
int16_t i16 = 32767;
result = format("{}", i16);
EXPECT_EQ(result, "32767");
int32_t i32 = 68766; // int
result = format("{}", i32);
EXPECT_EQ(result, "68766");
int64_t i64 = 237942768427; // long int
result = format("{}", i64);
EXPECT_EQ(result, "237942768427");
// Unsigned
uint8_t u8 = 255; // unsigned char
result = format("{}", u8);
EXPECT_EQ(result, "255");
uint16_t u16 = 65535;
result = format("{}", u16);
EXPECT_EQ(result, "65535");
uint32_t u32 = 4294967295; // unsigned int
result = format("{}", u32);
EXPECT_EQ(result, "4294967295");
size_t u64 = 18446744073709551615; // long unsigned int
result = format("{}", u64);
EXPECT_EQ(result, "18446744073709551615");
}
TEST_CASE(FormatFloatingPoint)
{
std::string result;
float f32R = 245789.70000;
result = format("{}", f32R);
EXPECT_EQ(result, "245789.703125");
float f32 = 45645.3233;
result = format("{}", f32);
EXPECT_EQ(result, "45645.324219");
double f64 = 87522.300000000;
result = format("{}", f64);
EXPECT_EQ(result, "87522.300000");
double pi = 3.14159265359;
result = format("{}", pi);
EXPECT_EQ(result, "3.141593");
}
TEST_CASE(FormatChar)
{
std::string result;
char character = 'A';
result = format("{}", character);
EXPECT_EQ(result, "A");
bool boolean = true;
result = format("{}", boolean);
EXPECT_EQ(result, "true");
boolean = false;
result = format("{}", boolean);
EXPECT_EQ(result, "false");
}
TEST_CASE(FormatString)
{
std::string result;
result = format("");
EXPECT_EQ(result, "");
const char* cString = "C string";
result = format("{}", cString);
EXPECT_EQ(result, "C string");
std::string string = "string";
result = format("{}", string);
EXPECT_EQ(result, "string");
std::string_view stringView = "string_view";
result = format("{}", stringView);
EXPECT_EQ(result, "string_view");
result = format("{} {}", "Hello", "World");
EXPECT_EQ(result, "Hello World");
result = format("{{escaped braces}}");
EXPECT_EQ(result, "{escaped braces}");
result = format("{{braces{}}}", "Something");
EXPECT_EQ(result, "{bracesSomething}");
}
TEST_CASE(FormatPointer)
{
std::string result;
result = format("{}", nullptr);
EXPECT_EQ(result, "0x0");
int integer = 42;
std::stringstream stream;
stream << &integer;
std::string pointer = stream.str();
result = format("{}", &integer);
EXPECT_EQ(result, pointer);
}
TEST_CASE(FormatSpecifierIntegral)
{
std::string result;
// Fill and Align
result = format("{:+<}", 12345);
EXPECT_EQ(result, "12345");
result = format("{:+^}", 12345);
EXPECT_EQ(result, "12345");
result = format("{:+>}", 12345);
EXPECT_EQ(result, "12345");
// Sign
result = format("{:+}", 12345);
EXPECT_EQ(result, "+12345");
result = format("{:+}", -12345);
EXPECT_EQ(result, "-12345");
result = format("{:-}", 12345);
EXPECT_EQ(result, "12345");
result = format("{:-}", -12345);
EXPECT_EQ(result, "-12345");
result = format("{: }", 12345);
EXPECT_EQ(result, " 12345");
result = format("{: }", -12345);
EXPECT_EQ(result, "-12345");
// AlternativeForm
result = format("{:#}", 12345);
EXPECT_EQ(result, "12345");
// ZeroPadding
result = format("{:0}", 12345);
EXPECT_EQ(result, "12345");
// Width
result = format("{:10}", 12345);
EXPECT_EQ(result, " 12345");
// Width + Fill and Align
result = format("{:+<10}", 12345);
EXPECT_EQ(result, "12345+++++");
result = format("{:+^10}", 12345);
EXPECT_EQ(result, "++12345+++");
result = format("{:+>10}", 12345);
EXPECT_EQ(result, "+++++12345");
// Width + ZeroPadding
result = format("{:010}", 12345);
EXPECT_EQ(result, "0000012345");
// Precision
// Not possible on integral types
// Type
result = format("{:b}", 12345);
EXPECT_EQ(result, "11000000111001");
result = format("{:B}", 12345);
EXPECT_EQ(result, "11000000111001");
result = format("{:c}", 65);
EXPECT_EQ(result, "A");
result = format("{:o}", 12345);
EXPECT_EQ(result, "30071");
result = format("{:x}", 62432);
EXPECT_EQ(result, "f3e0");
result = format("{:X}", 62432);
EXPECT_EQ(result, "F3E0");
// Type + AlternativeForm
result = format("{:#b}", 12345);
EXPECT_EQ(result, "0b11000000111001");
result = format("{:#B}", 12345);
EXPECT_EQ(result, "0B11000000111001");
result = format("{:#c}", 65);
EXPECT_EQ(result, "A");
result = format("{:#o}", 12345);
EXPECT_EQ(result, "030071");
result = format("{:#x}", 62432);
EXPECT_EQ(result, "0xf3e0");
result = format("{:#X}", 62432);
EXPECT_EQ(result, "0XF3E0");
}
TEST_CASE(FormatSpecifierIntegralCombination)
{
std::string result;
// AlternativeForm + ZeroPadding + Width + Type
// ------------------------------
result = format("{:-#010d}", 402);
EXPECT_EQ(result, "0000000402");
// AlternativeForm + Width + Type
// ------------------------------
result = format("{:#10x}", 402);
EXPECT_EQ(result, " 0x192");
// + Fill and Align
result = format("{:^<#10x}", 402);
EXPECT_EQ(result, "0x192^^^^^");
result = format("{:^^#10x}", 402);
EXPECT_EQ(result, "^^0x192^^^");
result = format("{:^>#10x}", 402);
EXPECT_EQ(result, "^^^^^0x192");
// ------------------------------
// + Sign
result = format("{:+#10x}", 402);
EXPECT_EQ(result, " +0x192");
// + Fill and Align + Sign
result = format("{:^<+#10x}", 402);
EXPECT_EQ(result, "+0x192^^^^");
result = format("{:^^+#10x}", 402);
EXPECT_EQ(result, "^^+0x192^^");
result = format("{:^>+#10x}", 402);
EXPECT_EQ(result, "^^^^+0x192");
// ------------------------------
// + ZeroPadding
result = format("{:#010x}", 402);
EXPECT_EQ(result, "0x00000192");
// Fill and Align + ZeroPadding
result = format("{:^<#010x}", 402);
EXPECT_EQ(result, "0x19200000");
result = format("{:^^#010x}", 402);
EXPECT_EQ(result, "000x192000");
result = format("{:^>#010x}", 402);
EXPECT_EQ(result, "000000x192");
// ------------------------------
// + Sign + ZeroPadding
result = format("{:+#010x}", 402);
EXPECT_EQ(result, "+0x0000192");
// + Fill and Align + Sign + ZeroPadding
result = format("{:^<+#010x}", 402);
EXPECT_EQ(result, "+0x1920000");
result = format("{:^^+#010x}", 402);
EXPECT_EQ(result, "00+0x19200");
result = format("{:^>+#010x}", 402);
EXPECT_EQ(result, "0000+0x192");
}
TEST_CASE(FormatSpecifierFloatingPoint)
{
std::string result;
double f64 = 87522.300000000;
result = format("{:.1}", f64);
EXPECT_EQ(result, "87522.3");
double pi = 3.14159265359;
result = format("{}", pi);
EXPECT_EQ(result, "3.141593");
result = format("{:.15}", pi);
EXPECT_EQ(result, "3.141592653590000");
}
TEST_CASE(FormatSpecifierChar)
{
std::string result;
char character = 65;
result = format("{:b}", character);
EXPECT_EQ(result, "1000001");
result = format("{:B}", character);
EXPECT_EQ(result, "1000001");
result = format("{:d}", character);
EXPECT_EQ(result, "65");
result = format("{:o}", character);
EXPECT_EQ(result, "101");
result = format("{:x}", character);
EXPECT_EQ(result, "41");
result = format("{:X}", character);
EXPECT_EQ(result, "41");
bool boolean = true;
result = format("{:b}", boolean);
EXPECT_EQ(result, "1");
result = format("{:B}", boolean);
EXPECT_EQ(result, "1");
result = format("{:d}", boolean);
EXPECT_EQ(result, "1");
result = format("{:o}", boolean);
EXPECT_EQ(result, "1");
result = format("{:x}", boolean);
EXPECT_EQ(result, "1");
result = format("{:X}", boolean);
EXPECT_EQ(result, "1");
boolean = false;
result = format("{:b}", boolean);
EXPECT_EQ(result, "0");
result = format("{:B}", boolean);
EXPECT_EQ(result, "0");
result = format("{:d}", boolean);
EXPECT_EQ(result, "0");
result = format("{:o}", boolean);
EXPECT_EQ(result, "0");
result = format("{:x}", boolean);
EXPECT_EQ(result, "0");
result = format("{:X}", boolean);
EXPECT_EQ(result, "0");
}
TEST_CASE(FormatSpecifierString)
{
std::string result;
std::string string = "my string";
// Fill and Align
result = format("{:+<}", string);
EXPECT_EQ(result, "my string");
result = format("{:+^}", string);
EXPECT_EQ(result, "my string");
result = format("{:+>}", string);
EXPECT_EQ(result, "my string");
// Sign
// Not possible on string types
// AlternativeForm
// Not possible on string types
// ZeroPadding
// Not possible on string types
// Width
result = format("{:15}", string);
EXPECT_EQ(result, "my string ");
// Width + Fill and Align
result = format("{:+<15}", string);
EXPECT_EQ(result, "my string++++++");
result = format("{:+^15}", string);
EXPECT_EQ(result, "+++my string+++");
result = format("{:+>15}", string);
EXPECT_EQ(result, "++++++my string");
// Precision
// Not possible on string types
// Type
result = format("{:s}", string);
EXPECT_EQ(result, "my string");
}
TEST_CASE(FormatSpecifierPointer)
{
std::string result;
int integer = 42;
std::stringstream stream;
stream << &integer;
std::string pointer = stream.str();
// Fill and Align
result = format("{:+<}", &integer);
EXPECT_EQ(result, pointer);
result = format("{:+^}", &integer);
EXPECT_EQ(result, pointer);
result = format("{:+>}", &integer);
EXPECT_EQ(result, pointer);
// Sign
// Not possible on string types
// AlternativeForm
// Not possible on string types
// ZeroPadding
// Not possible on string types
// Width
result = format("{:24}", &integer);
EXPECT_EQ(result, std::string(24 - pointer.length(), ' ') + pointer);
// Width + Fill and Align
result = format("{:+<24}", &integer);
EXPECT_EQ(result, pointer + std::string(24 - pointer.length(), '+'));
result = format("{:+^24}", &integer);
EXPECT_EQ(result, std::string((24 - pointer.length()) / 2, '+') + pointer + std::string((24 - pointer.length()) / 2, '+'));
result = format("{:+>24}", &integer);
EXPECT_EQ(result, std::string(24 - pointer.length(), '+') + pointer);
// Precision
// Not possible on string types
// Type
result = format("{:p}", &integer);
EXPECT_EQ(result, pointer);
}
TEST_CASE(FormatContainers)
{
std::string result;
std::vector<std::string> vector { "thing1", "thing2", "thing3" };
result = format("{}", vector);
EXPECT_EQ(result, "{thing1,thing2,thing3}");
result = format("{:1}", vector);
EXPECT_EQ(result, "{ thing1, thing2, thing3 }");
result = format("{:#4}", vector);
EXPECT_EQ(result, R"({
thing1,
thing2,
thing3
})");
result = format("{:\t<#1}", vector);
EXPECT_EQ(result, R"({
thing1,
thing2,
thing3
})");
std::map<std::string, int> map { { "thing3", 3 }, { "thing2", 2 }, { "thing1", 1 } };
result = format("{}", map);
EXPECT_EQ(result, R"({"thing1":1,"thing2":2,"thing3":3})");
result = format("{:1}", map);
EXPECT_EQ(result, R"({ "thing1": 1, "thing2": 2, "thing3": 3 })");
result = format("{:#4}", map);
EXPECT_EQ(result, R"({
"thing1": 1,
"thing2": 2,
"thing3": 3
})");
result = format("{:\t<#1}", map);
EXPECT_EQ(result, R"({
"thing1": 1,
"thing2": 2,
"thing3": 3
})");
// Multidimensional containers arent supported,
// the user should write a customization point
std::vector<std::vector<std::string>> twoDimensionalVector {
{ "thing1", "thing2", "thing3" },
{ "thing1", "thing2", "thing3" }
};
result = format("{:#4}", twoDimensionalVector);
EXPECT_EQ(result, R"({
{thing1,thing2,thing3},
{thing1,thing2,thing3}
})");
}
// Local Variables:
// lsp-in-cpp-project-cache: nil
// End: