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Unit testing framework for C/C++. Easy to use by simply dropping stest.c and stest.h into your project!

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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:

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

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

About

Unit testing framework for C/C++. Easy to use by simply dropping stest.c and stest.h into your project!

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