feat: add contains functions

test/test_list.c

@@ -51,6 +51,20 @@ int test_delete_element() {
     return 0;
 }
 
+int test_list_contains() {
+    list* list = list_create();
+    list_add_element(list, "Hello");
+    list_add_element(list, "World");
+    list_add_element(list, "Test");
+
+    assert(list_contains(list, "Hello") == 1);
+    assert(list_contains(list, "World") == 1);
+    assert(list_contains(list, "Test") == 1);
+    assert(list_contains(list, "Other") == 0);
+
+    return 0;
+}
+
 int main() {
     int result = 0;
 
@@ -58,6 +72,7 @@ int main() {
     result += test_list_add_element();
     result += test_add_multiple_elements();
     result += test_delete_element();
+    result += test_list_contains();
 
     return result;
-}
+}

test/test_string.c

@@ -62,7 +62,7 @@ int test_split_function_by_substring() {
     const size_t size = str_split_by_substring(test_str, "split", &parts);
     assert(parts != NULL);
 
-    printf("size: %llu\n", size);
+    printf("size: %lu\n", size);
 
     assert(size == 4);
     assert(strcmp(parts[0], "this") == 0);
@@ -112,6 +112,15 @@ int test_trim() {
     return 0;
 }
 
+int test_string_contains() {
+    char* test_str = "Hello, test. test";
+    assert(str_contains(test_str, "Hello") == 1);
+    assert(str_contains(test_str, "test") == 1);
+    assert(str_contains(test_str, "World") == 0);
+
+    return 0;
+}
+
 int test_string_functions() {
     int result = 0;
 
@@ -123,10 +132,12 @@ int test_string_functions() {
     result += test_string_to_lower();
     result += test_string_concat();
     result += test_trim();
+    result += test_string_contains();
 
     return result;
 }
 
+
 int main() {
     return test_string_functions();
-}
+}