Add some skeleton for unit testing. Start with template objects.

upnp/unittest/main.c

@@ -0,0 +1,29 @@
+
+#include <stdio.h>
+
+#include "templates/templates.h"
+
+int (*tests[])(void) = {
+	templates,
+};
+
+int main(void)
+{
+	int ret = 0;
+	int i;
+	int n = (sizeof tests) / (sizeof tests[0]);
+	int result;
+	
+	for (i = 0; i < n; ++i) {
+		result = tests[i]();
+		printf("Test number %3d: %s.\n", i + 1, !result ? "PASS" : "FAIL");
+		ret += result;
+	}
+	printf("\n"
+		"Failed in %d tests.\n"
+		"Passed in %d tests.\n",
+		ret, n - ret);
+
+	return ret;
+}
+