In order to let testing enough simple, this is a very small header file in C/C++ template recursive and variadic.

Only one assertion template, zero learning time.

You just write a test unit, no matter where, and the compiler does the rest for you.

It is designed to let users focus on writing test scenarios. Each test unit is a native struct or class, so there are no "weird" test fixtures. The only assertion tool is normal method, so avoids using macros in a unit test.

1. Only a header file, only use C++ compiler.
2. Any member method or function can be tested.
3. No concept to learn, no heavy documentation, just one assertion tool.
4. No config, no test macro, no graphic interface, no extrernal library.
5. Can run a test unit or suite by wild card pattern.
6. Extended easily and integrated easily into an application.

template <class A>
static void _assert(const A& expression, const char* shouldbe=0, ...);

The below code snippet demonstrates the least amount of code required to write an executable test:

/* 1.Add this header file into your project */
#include "CppUnitTestExpress.h"

/* 2. Write a test unit given a name. */
class TestMinimal : public Unit<TestMinimal>
{
	void Test()
	{
		_assert(true,"Should be true.");
	}
};

/* Only this test is executed. */
class TestMinimal : public Unit<TestMinimal>::Only
{
	void Test()
	{
		_assert(true,"Should be true.");
	}
};

/* Skip this test. */
class TestMinimal : public Unit<TestMinimal>::Skip
{
	void Test()
	{
		_assert(true,"Should be true.");
	}
};

/* 3. Run the unit test. */
int main(int argc, char* argv[])
{
	return 0;
}

/* The result of test is displayed. */
	SUCCESS : TestMinimal - 0s
	----------------------------------------
	Executed: 1 unit, 0s at 2025-01-12 20:30:47
	Resulted: SUCCESS