Add Check unit testing example

README.md

@@ -25,6 +25,19 @@ How to run:
     ./example-02
     ./example-03
 
+Check - unit test
+-----------------
+
+Check is unit testing framework for C: http://check.sourceforge.net/
+
+This directory contains simple example. You can uncomment age++ to create bug and rerun tests.
+
+How to run:
+
+    cd check
+    make
+    ./test
+
 curl
 ----
 

check/Makefile

@@ -0,0 +1,15 @@
+
+
+OBJ     = main.o
+LDADD   = -lcheck
+
+test: $(OBJ)
+	${CC} ${OBJ} -o test ${LDADD}
+
+
+.c.o:
+	${CC} ${CFLAGS} -c $<
+
+clean:
+	rm -f test
+

check/main.c

@@ -0,0 +1,92 @@
+#include <stdlib.h>
+
+/* Check testing framework - http://check.sourceforge.net/ */
+#include <check.h>
+
+/**
+ * Application logic for employee.
+ */
+
+typedef struct Person {
+     char * name;
+     char * surname;
+     int age;
+} Person;
+
+void increment_age(Person *person) {
+    person->age++;
+    // Uncomment following line to create bug
+    // person->age++;
+}
+
+void rename_person(Person *person, char *new_name) {
+    person->name = new_name;
+}
+
+/**
+ * Unit testing stuff - This is just example. In real test case
+ * put this to separate file.
+ */
+Person *employee;
+
+/**
+ * Test fixture - setup method - initialize employee
+ */
+void setup() {
+    employee = malloc(sizeof(Person));
+    employee->name = "Arnost";
+    employee->surname = "Topinka";
+    employee->age = 42;
+}
+
+/**
+ * Clean up after testing. Release memory.
+ */
+void teardown() {
+    free(employee);
+}
+
+START_TEST (test_age) {	
+    setup();
+    increment_age(employee);
+    fail_unless(employee->age == 43, "Incorrect age.");
+    teardown();
+}
+END_TEST
+
+START_TEST (test_name) {
+    setup();
+    rename_person(employee, "Franta");
+    fail_unless( !strcmp( employee->name, "Franta"), "Employee should be renamed.");
+    teardown();   
+}
+END_TEST
+
+/**
+ * Create test suite.
+ */
+Suite *make_suite() {
+    Suite *suite;
+    TCase *test_case;
+    suite = suite_create("Employee testing");
+    test_case = tcase_create("Core tests");
+    tcase_add_test(test_case, test_age);
+    tcase_add_test(test_case, test_age);
+    tcase_add_test(test_case, test_name);
+    tcase_add_test(test_case, test_name);
+    tcase_add_test(test_case, test_name);
+    tcase_add_test(test_case, test_age);
+    tcase_add_test(test_case, test_name);
+    suite_add_tcase(suite, test_case); 
+    return suite;
+}
+
+int main() {
+    int number_failed;
+    Suite *suite = make_suite();
+    SRunner *suite_runner = srunner_create(suite);
+    srunner_run_all (suite_runner, CK_NORMAL);
+    number_failed = srunner_ntests_failed (suite_runner);
+    srunner_free (suite_runner);
+    return (number_failed == 0) ? EXIT_SUCCESS : EXIT_FAILURE;
+}