SWDEV-286231 - Fix hipMallocManaged tests failure

Test is modified as hipMemAttachHost is accepted now by hipMallocManaged

Change-Id: If73d210297cde7a92960eef57a902dbd6402a173

tests/src/runtimeApi/memory/hipMallocManaged_MultiScenario.cpp

@@ -197,7 +197,7 @@ bool NegativeTestsMallocManaged(int NumDevices) {
   // success and contradicts with api doc.
 
   // With size(0), api expected to return error code (or)
-  // reset ptr while returning success (to accomadate cuda 11.2 api behavior).
+  // reset ptr while returning success (to accommodate cuda 11.2 api behavior).
   err = hipMallocManaged(&A, 0, hipMemAttachGlobal);
   if ((hipErrorInvalidValue == err) ||
       ((hipSuccess == err) && (nullptr == A))) {
@@ -213,16 +213,33 @@ bool NegativeTestsMallocManaged(int NumDevices) {
     IfTestPassed = false;
   }
 
-#ifdef __HIP_PLATFORM_AMD__
-  // The flag hipMemAttachHost is currently not supported therefore
-  // api should return "hipErrorInvalidValue" for now
-  err = hipMallocManaged(&A, 1024, hipMemAttachHost);
+  err = hipMallocManaged(NULL, 1024, hipMemAttachHost);
   if (hipErrorInvalidValue != err) {
     printf("hipMallocManaged: Returned %s for 'hipMemAttachHost' flag\n",
            hipGetErrorString(err));
     IfTestPassed = false;
   }
-#endif  // __HIP_PLATFORM_AMD__
+
+  // cuda api doc says : If size is 0, cudaMallocManaged returns
+  // cudaErrorInvalidValue. However, it is observed that cuda 11.2 api returns
+  // success and contradicts with api doc.
+
+  // With size(0), api expected to return error code (or)
+  // reset ptr while returning success (to accommodate cuda 11.2 api behavior).
+  err = hipMallocManaged(&A, 0, hipMemAttachHost);
+  if ((hipErrorInvalidValue == err) ||
+      ((hipSuccess == err) && (nullptr == A))) {
+    IfTestPassed &= true;
+  } else {
+    IfTestPassed = false;
+  }
+
+  err = hipMallocManaged(NULL, 0, hipMemAttachHost);
+  if (hipErrorInvalidValue != err) {
+    printf("hipMallocManaged: Returned %s when devPtr & size is null & 0\n",
+           hipGetErrorString(err));
+    IfTestPassed = false;
+  }
 
   err = hipMallocManaged(NULL, 0, 0);
   if (hipErrorInvalidValue != err) {