Tests for Memcpy, Prefetch, MemAdivse with null QRef

Author: oleksandr-pavlyk

Diff for: dpctl-capi/tests/test_sycl_queue_interface.cpp

@@ -327,6 +327,24 @@ TEST(TestDPCTLSyclQueueInterface, CheckPropertyHandling)
     EXPECT_NO_FATAL_FAILURE(DPCTLDeviceSelector_Delete(DSRef));
 }
 
+TEST(TestDPCTLSyclQueueInterface, CheckMemOpsInvalid)
+{
+    DPCTLSyclQueueRef QRef = nullptr;
+    void *p1 = nullptr;
+    void *p2 = nullptr;
+    size_t n_bytes = 0;
+    DPCTLSyclEventRef ERef = nullptr;
+
+    ASSERT_NO_FATAL_FAILURE(ERef = DPCTLQueue_Memcpy(QRef, p1, p2, n_bytes));
+    ASSERT_FALSE(bool(ERef));
+
+    ASSERT_NO_FATAL_FAILURE(ERef = DPCTLQueue_Prefetch(QRef, p1, n_bytes));
+    ASSERT_FALSE(bool(ERef));
+
+    ASSERT_NO_FATAL_FAILURE(ERef = DPCTLQueue_MemAdvise(QRef, p1, n_bytes, 0));
+    ASSERT_FALSE(bool(ERef));
+}
+
 TEST_P(TestDPCTLQueueMemberFunctions, CheckGetBackend)
 {
     auto q = unwrap(QRef);