Documentation for Primitive

Former-commit-id: 8f4e15d4e9131836545f8b112049a001638f411c

tests/Engine/Core/PrimitiveList.cpp

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+#include <Nazara/Core/PrimitiveList.hpp>
+#include <Catch/catch.hpp>
+
+SCENARIO("PrimitiveList", "[CORE][PRIMITIVELIST]")
+{
+	GIVEN("An empty PrimitiveList")
+	{
+		Nz::PrimitiveList primitiveList;
+
+		WHEN("We add two primitives")
+		{
+			float size = 1.f;
+			unsigned int subdivision = 1;
+			unsigned int recursionLevel = 1;
+			Nz::Matrix4f identity = Nz::Matrix4f::Identity();
+
+			primitiveList.AddCubicSphere(size, subdivision, identity);
+			primitiveList.AddIcoSphere(size, subdivision, identity);
+
+			THEN("There must be two items")
+			{
+				REQUIRE(primitiveList.GetSize() == 2);
+			}
+
+			THEN("The first one is the cubic sphere")
+			{
+				REQUIRE(primitiveList(0).sphere.type == Nz::SphereType_Cubic);
+			}
+		}
+	}
+}