EXSWHTEC-194 - Implement tests for User Object Graph APIs (#30)

- Tidy up hipUserObjectCreate tests
- Tidy up hipUserObjectRelease tests
- Tidy up hipUserObjectRetain tests
- Tidy up hipGraphReleaseUserObject tests
- Tidy up hipGraphRetainUserObject tests
- Separate tests into multiple files.

catch/unit/graph/hipUserObjectRetain.cc

@@ -0,0 +1,48 @@
+/*
+Copyright (c) 2022 Advanced Micro Devices, Inc. All rights reserved.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+*/
+
+#include <hip_test_common.hh>
+
+#include "user_object_common.hh"
+
+/**
+ * Negative Test for API - hipUserObjectRetain
+ 1) Pass User Object as nullptr
+ 2) Pass initialRefcount as 0
+ 3) Pass initialRefcount as INT_MAX
+ */
+TEST_CASE("Unit_hipUserObjectRetain_Negative") {
+  int* object = new int();
+  REQUIRE(object != nullptr);
+
+  hipUserObject_t hObject;
+  HIP_CHECK(hipUserObjectCreate(&hObject, object, destroyIntObj, 1, hipUserObjectNoDestructorSync));
+  REQUIRE(hObject != nullptr);
+
+  SECTION("Pass User Object as nullptr") {
+    HIP_CHECK_ERROR(hipUserObjectRetain(nullptr, 1), hipErrorInvalidValue);
+  }
+  SECTION("Pass initialRefcount as 0") {
+    HIP_CHECK_ERROR(hipUserObjectRetain(hObject, 0), hipErrorInvalidValue);
+  }
+  SECTION("Pass initialRefcount as INT_MAX") { HIP_CHECK(hipUserObjectRetain(hObject, INT_MAX)); }
+}