- Fixed some missing and erroneous testing logic for containers

- Lots of bug-fixing for containers
 - Performance optimization for containers

test/tests/containers/test_sequence.h

@@ -39,17 +39,29 @@ namespace test
 {
 
 inline void fennec_test_containers_sequence() {
-	dynarray<size_t> ref;
-	sequence<size_t> test;
+	using type_t = decltype(rand());
+	dynarray<type_t> ref;
+	sequence<type_t> test;
 	const size_t n = 50;
 
 	for (size_t i = 0; i < n; ++i) {
-		size_t v = rand();
+		type_t v = rand();
 		ref.push_back(v);
 		test.insert(v);
 	}
 
-	for (size_t v : ref) {
+	fennec_test_run(test.size(), n);
+
+	type_t p = -1;
+	size_t c = 0;
+	for (type_t x : test) {
+		assertf(x > p, "Failed Sequence Test!");
+		p = x;
+		++c;
+	}
+	fennec_test_run(c, n);
+
+	for (type_t v : ref) {
 		assertf(test.contains(v), "Failed Sequence Test!");
 		test.erase(v);
 	}