From bf0d77d7d448e964e9716d5af67c48f3d014f090 Mon Sep 17 00:00:00 2001
From: Filip Wandzio <contact@philw.dev>
Date: Sun, 1 Mar 2026 01:03:39 +0100
Subject: Scaffold basic project tree, implement benchmarking logic

Implement unit testing guardian
---
 tests/test_syntax_essentials.c | 125 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 125 insertions(+)
 create mode 100644 tests/test_syntax_essentials.c

(limited to 'tests')

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;
+}
-- 
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