SWDEV-485763 - Fix memory leaks in various unit tests

Fix memory leaks by adding missing destroy calls for
events, streams, and graphs at the end of tests.

Ensure that every test case executes destroy calls,
regardless of whether it passes or fails.

Change-Id: I814e35c528d90ed2abb34d77377f1a7fd3f1f11c


[ROCm/hip-tests commit: 9cffda4ebb]

projects/hip-tests/catch/unit/stream/hipStreamCreateWithPriority.cc

@@ -488,12 +488,16 @@ bool validateStreamPrioritiesWithEvents() {
   OP(low, high)
   #undef OP
 
-  // free host & device memory
+  // free host & device memory & events
   #define OP(x) \
     free(src_h_##x); \
     free(dst_h_##x); \
     HIP_CHECK(hipFree(src_d_##x)); \
-    HIP_CHECK(hipFree(dst_d_##x));
+    HIP_CHECK(hipFree(dst_d_##x)); \
+    if (enable_priority_##x) { \
+      HIP_CHECK(hipEventDestroy(event_start_##x)); \
+      HIP_CHECK(hipEventDestroy(event_end_##x)); \
+    }
   OP(low)
   OP(normal)
   OP(high)
@@ -801,6 +805,33 @@ void TestForMultipleStreamWithPriority(void) {
       REQUIRE(memcmp(dst_h_high[i], src_h_high[i], size) == 0);
     }
   }
+
+  for (int i = 0; i < LOW_PRIORITY_STREAMCOUNT; i++) {
+    if (enable_priority_low) {
+      HIP_CHECK(hipEventDestroy(event_start_low[i]));
+      HIP_CHECK(hipEventDestroy(event_end_low[i]));
+    }
+
+    HIP_CHECK(hipStreamDestroy(stream_low[i]));
+  }
+
+  for (int i = 0; i < NORMAL_PRIORITY_STREAMCOUNT; i++) {
+    if (enable_priority_normal) {
+      HIP_CHECK(hipEventDestroy(event_start_normal[i]));
+      HIP_CHECK(hipEventDestroy(event_end_normal[i]));
+    }
+
+    HIP_CHECK(hipStreamDestroy(stream_normal[i]));
+  }
+
+  for (int i = 0; i < HIGH_PRIORITY_STREAMCOUNT; i++) {
+    if (enable_priority_high) {
+      HIP_CHECK(hipEventDestroy(event_start_high[i]));
+      HIP_CHECK(hipEventDestroy(event_end_high[i]));
+    }
+
+    HIP_CHECK(hipStreamDestroy(stream_high[i]));
+  }
 }
 }  // namespace hipStreamCreateWithPriorityTest