STest

About

STest is a unit testing framework for C/C++ based on Keith Nicholas's Seatest. STest is an xUnit style of unit testing framework, and is made to be portable. Installing STest is as easy as dropping the stest.c and stest.h files into your project.

Features

xUnit style asserts
Easily extensible for custom asserts
Optional color-coded output
Cross platform in any C/C++ project
Supports global set-up and tear-down functions
Supports per-test set-up and tear-down functions
Ability to selectively run tests and fixtures

Asserts

Assert	Arguments	Meaning
assert_true	int test	Asserts test is non-zero
assert_false	int test	Asserts test is zero
assert_int_equal	int expected, int actual	Asserts expected == actual
assert_ulong_equal	unsigned long expected, unsigned long actual	Asserts expected == actual
assert_string_equal	char* expected, char* actual	Asserts all characters of expected equal all characters of actual
assert_n_array_equal	void* expected, void* actual, int n	Asserts first n elements from expected to actual
assert_bit_set	int bit_number, int value	Asserts the bit_number in value is set to a 1
assert_bit_not_set	int bit_number, int value	Asserts the bit_number in value is set to a 0
assert_bit_mask_matches	<size> value, <size> mask	Asserts all 1 bits in mask are set to 1 in value
assert_fail	char* message	Automatic failing test with a custom message
assert_float_equal	float expected, float actual, float delta	Asserts expected is within delta above or below value
assert_double_equal	double expected, double actual, double delta	Asserts expected is within delta above or below value
assert_string_contains	char* contained, char* container	Asserts contained is a substring of container
assert_string_not_contains	char* contained, char* container	Asserts contained is not a substring of container
assert_string_starts_with	char* contained, char* container	Asserts container begins with contained
assert_string_ends_with	char* contained, char* container	Asserts container ends with contained

Command Line Arguments

The test runner can be run with a few simple command line arguments.

Option	Meaning
-d	Display tests, do not run tests
-v	Run tests in verbose mode
-vs	Alternative display mode
-t <testname>	Only run tests that match <testname>
-f <fixturename>	Only run fixtures that match <fixturename>
-m	Output machine readable
-s	Skip the rest of the test when an assert fails
-k <marker>	prepend <marker> before machine readable output
-c	Color code output (green success, red failure)
help	Output help message

Example Usage

// Sample test
void my_test() {
  int actual = 10;
  assert_int_equal(10, actual);

  char *actual_str = "Hello World";
  assert_string_contains("Hello", actual_str);
}

// Another sample Test
void another_test() {
  assert_true(1);
  assert_false(0);
}

// Sample fixture
// Fixtures are a collection of related tests
void test_fixture() {
  test_fixture_start();
  run_test(my_test());
  another_test();
  test_fixture_end();
}

// Sample test suite
// Should combine all fixtures that belong in the suite
void run_all_tests() { test_fixture(); }

// Keep main simple to run all of your test suites
int main(int argc, char **argv) {
  return stest_testrunner(argc, argv, run_all_tests, NULL, NULL);
}

Contributing

I am happy to accept pull requests for bug fixes and new features. Here are the suggested steps:

Fork the repository
Create a new branch
Implement your feature
Reformat your code with the provided .clang-format file
Add your commits
Create a pull request to master

I will try to keep the issues tab updated with improvements I am envisioning.