CUnit is a lightweight system for writing, administering, and running unit tests in C. It provides C programmers a basic testing functionality with a flexible variety of user interfaces.
CUnit is built as a static library which is linked with the user's testing code. It uses a simple framework for building test structures, and provides a rich set of assertions for testing common data types. In addition, several different interfaces are provided for running tests and reporting results.
its official webset is:CUnit Home
now we start to install CUnit environment on Ubuntu18.04
download CUnit from below website:
C Unit Testing Framework - Browse /CUnit at SourceForge.net
now we use the latest version 2.1-3.
the CUint test environment use jam compile default, you can install jame use command:
sudo apt install jam
then execute the configuration with bootstrap in top dir.
- $ ./bootstrap
- $ ./configure --prefix=/home/czl/Workspace/CUint/prefix
then execute make to compile and install
make && make install
download the default test case from below website:
- /*
- * Simple example of a CUnit unit test.
- *
- * This program (crudely) demonstrates a very simple "black box"
- * test of the standard library functions fprintf() and fread().
- * It uses suite initialization and cleanup functions to open
- * and close a common temporary file used by the test functions.
- * The test functions then write to and read from the temporary
- * file in the course of testing the library functions.
- *
- * The 2 test functions are added to a single CUnit suite, and
- * then run using the CUnit Basic interface. The output of the
- * program (on CUnit version 2.0-2) is:
- *
- * CUnit : A Unit testing framework for C.
- * http://cunit.sourceforge.net/
- *
- * Suite: Suite_1
- * Test: test of fprintf() ... passed
- * Test: test of fread() ... passed
- *
- * --Run Summary: Type Total Ran Passed Failed
- * suites 1 1 n/a 0
- * tests 2 2 2 0
- * asserts 5 5 5 0
- */
- #include <stdio.h>
- #include <string.h>
- #include "CUnit/Basic.h"
-
- /* Pointer to the file used by the tests. */
- static FILE* temp_file = NULL;
-
- /* The suite initialization function.
- * Opens the temporary file used by the tests.
- * Returns zero on success, non-zero otherwise.
- */
- int init_suite1(void)
- {
- if (NULL == (temp_file = fopen("temp.txt", "w+"))) {
- return -1;
- }
- else {
- return 0;
- }
- }
-
- /* The suite cleanup function.
- * Closes the temporary file used by the tests.
- * Returns zero on success, non-zero otherwise.
- */
- int clean_suite1(void)
- {
- if (0 != fclose(temp_file)) {
- return -1;
- }
- else {
- temp_file = NULL;
- return 0;
- }
- }
-
- /* Simple test of fprintf().
- * Writes test data to the temporary file and checks
- * whether the expected number of bytes were written.
- */
- void testFPRINTF(void)
- {
- int i1 = 10;
-
- if (NULL != temp_file) {
- CU_ASSERT(0 == fprintf(temp_file, ""));
- CU_ASSERT(2 == fprintf(temp_file, "Q\n"));
- CU_ASSERT(7 == fprintf(temp_file, "i1 = %d", i1));
- }
- }
-
- /* Simple test of fread().
- * Reads the data previously written by testFPRINTF()
- * and checks whether the expected characters are present.
- * Must be run after testFPRINTF().
- */
- void testFREAD(void)
- {
- unsigned char buffer[20];
-
- if (NULL != temp_file) {
- rewind(temp_file);
- CU_ASSERT(9 == fread(buffer, sizeof(unsigned char), 20, temp_file));
- CU_ASSERT(0 == strncmp(buffer, "Q\ni1 = 10", 9));
- }
- }
-
- /* The main() function for setting up and running the tests.
- * Returns a CUE_SUCCESS on successful running, another
- * CUnit error code on failure.
- */
- int main()
- {
- CU_pSuite pSuite = NULL;
-
- /* initialize the CUnit test registry */
- if (CUE_SUCCESS != CU_initialize_registry())
- return CU_get_error();
-
- /* add a suite to the registry */
- pSuite = CU_add_suite("Suite_1", init_suite1, clean_suite1);
- if (NULL == pSuite) {
- CU_cleanup_registry();
- return CU_get_error();
- }
-
- /* add the tests to the suite */
- /* NOTE - ORDER IS IMPORTANT - MUST TEST fread() AFTER fprintf() */
- if ((NULL == CU_add_test(pSuite, "test of fprintf()", testFPRINTF)) ||
- (NULL == CU_add_test(pSuite, "test of fread()", testFREAD)))
- {
- CU_cleanup_registry();
- return CU_get_error();
- }
-
- /* Run all tests using the CUnit Basic interface */
- CU_basic_set_mode(CU_BRM_VERBOSE);
- CU_basic_run_tests();
- CU_cleanup_registry();
- return CU_get_error();
- }
gcc -o cunit test.c -I/home/czl/Workspace/CUint/prefix/include -L/home/czl/Workspace/CUint/prefix/lib -lcunit -static
if you need not install CUnit from source code, you can use the apt install manner to install CUnit packet directly.
sudo apt install libcunit1-dev
another CPP Unit test framwork are called gtest, you can refer this artical: