setup project for assignment 3

Assignment_3/test/CMakeLists.txt

@@ -0,0 +1,12 @@
+include(FetchContent)
+FetchContent_Declare(
+        googletest
+        GIT_REPOSITORY https://github.com/google/googletest.git
+        GIT_TAG release-1.10.0
+)
+FetchContent_MakeAvailable(googletest)
+
+add_executable(node_unit_test Node_test.cpp)
+target_link_libraries(node_unit_test PUBLIC gtest gtest_main)
+target_link_libraries(node_unit_test PUBLIC sets)
+add_test(NodeTest node_unit_test)

Assignment_3/test/Node_test.cpp

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+#include <gtest/gtest.h>
+
+#include <lib/Node.h>
+
+TEST(NodeTest, DummyNode_smaller_int) {
+    Node * n = Node::Dummy();
+    ASSERT_FALSE(n->is_smaller_than(std::numeric_limits<int>::max()));
+    ASSERT_FALSE(n->is_smaller_than(std::numeric_limits<int>::min()));
+}
+
+TEST(NodeTest, DummyNode_smaller_node) {
+    Node * n = Node::Dummy();
+    Node * max = new Node(std::numeric_limits<int>::max());
+    Node * min = new Node(std::numeric_limits<int>::min());
+    ASSERT_FALSE(n->is_smaller_than(max));
+    ASSERT_FALSE(n->is_smaller_than(min));
+}
+
+
+TEST(NodeTest, LockingUnlockingNode) {
+    Node * n = new Node(1);
+    n->lock();
+    n->unlock();
+}
+
+TEST(NodeTest, ChainingNode) {
+    Node* first = Node::Dummy();
+    Node* last = Node::Dummy();
+    first->next = last;
+    ASSERT_TRUE(first->next == last);
+}
+