feat: added tests

tests/output.c

@@ -0,0 +1,61 @@
+#include "test.h"
+#include "libft.h"
+
+TEST(test_putchar) {
+    int ret = ft_putchar('A');
+    ASSERT(ret == 1); // Should print 'A'
+}
+
+TEST(test_putstr) {
+    int ret = ft_putstr("Hello");
+    ASSERT(ret == 5); // Should print 'Hello'
+    ret = ft_putstr(NULL);
+    ASSERT(ret == 6 || ret == 0); // Depending on your implementation: "(null)" or nothing
+}
+
+TEST(test_putnbr) {
+    int ret = ft_putnbr(42);
+    ASSERT(ret == 2); // Should print "42"
+    ret = ft_putnbr(-1234);
+    ASSERT(ret == 5); // Should print "-1234"
+}
+
+TEST(test_putunbr) {
+    int ret = ft_putunbr(12345U);
+    ASSERT(ret == 5); // Should print "12345"
+}
+
+TEST(test_puthex) {
+    int ret = ft_puthex(0x2A, 0);
+    ASSERT(ret == 2); // Should print "2a"
+    ret = ft_puthex(0x2A, 1);
+    ASSERT(ret == 2); // Should print "2A"
+}
+
+TEST(test_putaddr) {
+    int ret = ft_putaddr(0x1234abcd);
+    ASSERT(ret >= 3); // Should print "0x..." (at least 3 chars)
+}
+
+TEST(test_putptr) {
+    int x = 42;
+    int ret = ft_putptr(&x);
+    ASSERT(ret >= 3); // Should print "0x..." (at least 3 chars)
+}
+
+TEST(test_printf) {
+    int ret = ft_printf("Hello %s %d %x\n", "world", 42, 255);
+    ASSERT(ret > 0); // Should print "Hello world 42 ff\n"
+}
+
+int main(void) {
+    RUN_TEST(test_putchar);
+    RUN_TEST(test_putstr);
+    RUN_TEST(test_putnbr);
+    RUN_TEST(test_putunbr);
+    RUN_TEST(test_puthex);
+    RUN_TEST(test_putaddr);
+    RUN_TEST(test_putptr);
+    RUN_TEST(test_printf);
+    return 0;
+}