feat(algorithms): add basic iterator algorithm and the corresponding testing

Redcraft.Utility/Source/Private/Testing/Algorithms.cpp

@@ -0,0 +1,45 @@
+#include "Testing/Testing.h"
+
+#include "Algorithms/Algorithms.h"
+#include "Containers/Array.h"
+#include "Containers/List.h"
+#include "Miscellaneous/AssertionMacros.h"
+
+NAMESPACE_REDCRAFT_BEGIN
+NAMESPACE_MODULE_BEGIN(Redcraft)
+NAMESPACE_MODULE_BEGIN(Utility)
+
+NAMESPACE_BEGIN(Testing)
+
+NAMESPACE_PRIVATE_BEGIN
+
+void TestBasic()
+{
+	TArray<int> Arr = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 };
+
+	auto Iter = Arr.Begin();
+
+	Algorithm::Advance(Iter, 5);
+
+	always_check(*Iter == 5);
+
+	always_check(Algorithm::Distance(Arr.Begin(), Iter) == 5);
+
+	always_check(Algorithm::Distance(Arr) == 10);
+
+	always_check(*Algorithm::Next(Iter, 2) == 7);
+	always_check(*Algorithm::Prev(Iter, 2) == 3);
+}
+
+NAMESPACE_PRIVATE_END
+
+void TestAlgorithms()
+{
+	NAMESPACE_PRIVATE::TestBasic();
+}
+
+NAMESPACE_END(Testing)
+
+NAMESPACE_MODULE_END(Utility)
+NAMESPACE_MODULE_END(Redcraft)
+NAMESPACE_REDCRAFT_END