1 files changed, 125 insertions, 0 deletions

diff --git a/tests/test_syntax_essentials.c b/tests/test_syntax_essentials.c
new file mode 100644
index 0000000..e0f0744
--- /dev/null
+++ b/tests/test_syntax_essentials.c
@@ -0,0 +1,125 @@
+#include "benchmark.h"
+#include "syntax_essentials.h"
+#include <stdio.h>
+
+static int total_tests = 0;
+static int passed_tests = 0;
+static int any_failure = 0;
+
+/**
+ *
+ * @param name
+ * @param func
+ * @param arg
+ * @param expected
+ * @param iterations
+ */
+static void run_test(const char* name,
+                     const function_to_benchmark func,
+                     const char* arg,
+                     const int expected,
+                     const size_t iterations)
+{
+        total_tests++;
+
+        const double avg_ms = benchmark_func(func, arg, iterations);
+        const int result = func(arg);
+
+        const int logic_ok = (result == expected);
+        const int perf_ok = (avg_ms <= MAX_ALLOWED_MS);
+        const int ok = logic_ok && perf_ok;
+
+        if (ok)
+                passed_tests++;
+        else
+                any_failure = 1;
+
+        report_result(name, ok, avg_ms, MAX_ALLOWED_MS);
+}
+
+/**
+ *
+ */
+static void test_names(void)
+{
+        run_test("validate_first_name: valid",
+                 validate_first_name,
+                 "Jan",
+                 1,
+                 ITERATIONS_FAST);
+        run_test("validate_first_name: too short",
+                 validate_first_name,
+                 "J",
+                 0,
+                 ITERATIONS_FAST);
+        run_test("validate_last_name: valid",
+                 validate_last_name,
+                 "Kowalski",
+                 1,
+                 ITERATIONS_FAST);
+        run_test("validate_last_name: invalid char",
+                 validate_last_name,
+                 "Kowalski3",
+                 0,
+                 ITERATIONS_FAST);
+}
+
+/**
+ *
+ */
+static void test_full_name(void)
+{
+        run_test("validate_full_name: valid",
+                 validate_full_name,
+                 "Jan Kowalski",
+                 1,
+                 ITERATIONS_SLOW);
+        run_test("validate_full_name: invalid first",
+                 validate_full_name,
+                 "J Kowalski",
+                 0,
+                 ITERATIONS_SLOW);
+}
+
+/**
+ *
+ */
+static void test_index(void)
+{
+        run_test("validate_index: valid",
+                 validate_index,
+                 "123456",
+                 1,
+                 ITERATIONS_FAST);
+        run_test("validate_index: too short",
+                 validate_index,
+                 "12345",
+                 0,
+                 ITERATIONS_FAST);
+}
+
+/**
+ *
+ * @return
+ */
+int main(void)
+{
+        printf("=== Embedded Syntax Essentials Test Suite ===\n");
+
+        test_names();
+        test_full_name();
+        test_index();
+
+        printf("\n====================================\n");
+        printf("Tests passed: %d / %d\n", passed_tests, total_tests);
+
+        if (!any_failure) {
+                printf(
+                    "%sALL CRITERIA MET — PASS%s\n", COLOR_GREEN, COLOR_RESET);
+                return 0;
+        }
+        printf("%sSUITE FAILED — performance or logic violation%s\n",
+               COLOR_RED,
+               COLOR_RESET);
+        return 1;
+}