TDD Workshop in C/Unity

A simple C project setup for practicing Test-Driven Development using the Unity testing framework.

Structure

├── src/          # Source files
├── include/      # Header files
├── test/         # Test files
└── unity/        # Unity testing framework

Usage

make test    # Compile and run tests
make clean   # Remove test binary

TDD Workflow

1. Red - Write a failing test
2. Green - Write minimal code to pass the test
3. Refactor - Improve the code while keeping tests green

Adding Tests

Edit test/test_calc.c:

void test_example(void)
{
    TEST_ASSERT_EQUAL_INT(expected, actual);
}

// Register in main():
RUN_TEST(test_example);

Common Assertions

TEST_ASSERT_EQUAL_INT(expected, actual)
TEST_ASSERT_EQUAL_STRING(expected, actual)
TEST_ASSERT_TRUE(condition)
TEST_ASSERT_FALSE(condition)
TEST_ASSERT_NULL(pointer)
TEST_ASSERT_NOT_NULL(pointer)

See the Unity Assertions Reference for all available assertions.