EXSWHTEC-11 - Implement tests for hipExtGetLinkTypeAndHopCount (#2878)

- Validate hop count and verify that the API is commutative
- Negative parameter tests.

Signed-off-by: Dino Music <dino.music@htecgroup.com>
Co-authored-by: Mirza Halilcevic <mirza.halilcevic@htecgroup.com>

[ROCm/hip commit: 18fc4f4508]

projects/hip/tests/catch/unit/device/CMakeLists.txt

@@ -17,6 +17,7 @@ set(TEST_SRC
     hipSetGetDevice.cc
     hipDeviceGetUuid.cc
     hipDeviceGetP2PAttribute.cc
+    hipExtGetLinkTypeAndHopCount.cc
 )
 
 set_source_files_properties(hipGetDeviceCount.cc PROPERTIES COMPILE_FLAGS -std=c++17)

projects/hip/tests/catch/unit/device/hipExtGetLinkTypeAndHopCount.cc

@@ -0,0 +1,100 @@
+/*
+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 <hip/hip_runtime_api.h>
+
+#if HT_AMD
+TEST_CASE("Unit_hipExtGetLinkTypeAndHopCount_Positive_Basic") {
+  const auto device1 = GENERATE(range(0, HipTest::getDeviceCount()));
+  const auto device2 = GENERATE(range(0, HipTest::getDeviceCount()));
+
+  if (device1 == device2) {
+    return;
+  }
+
+  uint32_t link_type1 = -1, hop_count1 = -1;
+  uint32_t link_type2 = -1, hop_count2 = -1;
+
+  HIP_CHECK(hipExtGetLinkTypeAndHopCount(device1, device2, &link_type1, &hop_count1));
+  HIP_CHECK(hipExtGetLinkTypeAndHopCount(device2, device1, &link_type2, &hop_count2));
+
+  REQUIRE(hop_count1 > 0);
+
+  REQUIRE(hop_count1 == hop_count2);
+  REQUIRE(link_type1 == link_type2);
+}
+
+TEST_CASE("Unit_hipExtGetLinkTypeAndHopCount_Negative_Parameters") {
+  uint32_t link_type, hop_count;
+  SECTION("same device") {
+    HIP_CHECK_ERROR(hipExtGetLinkTypeAndHopCount(0, 0, &link_type, &hop_count),
+                    hipErrorInvalidValue);
+  }
+
+  SECTION("device ordinance 1 too large") {
+    HIP_CHECK_ERROR(
+        hipExtGetLinkTypeAndHopCount(HipTest::getDeviceCount(), 0, &link_type, &hop_count),
+        hipErrorInvalidDevice);
+  }
+
+  SECTION("device ordinance 2 too large") {
+    HIP_CHECK_ERROR(
+        hipExtGetLinkTypeAndHopCount(0, HipTest::getDeviceCount(), &link_type, &hop_count),
+        hipErrorInvalidDevice);
+  }
+
+  SECTION("device ordinances too large") {
+    HIP_CHECK_ERROR(
+        hipExtGetLinkTypeAndHopCount(HipTest::getDeviceCount(), HipTest::getDeviceCount() + 1,
+                                     &link_type, &hop_count),
+        hipErrorInvalidDevice);
+  }
+
+  SECTION("device 1 < 0") {
+    HIP_CHECK_ERROR(hipExtGetLinkTypeAndHopCount(-1, 0, &link_type, &hop_count),
+                    hipErrorInvalidValue);
+  }
+
+  SECTION("device 2 < 0") {
+    HIP_CHECK_ERROR(hipExtGetLinkTypeAndHopCount(0, -1, &link_type, &hop_count),
+                    hipErrorInvalidValue);
+  }
+
+  SECTION("both devices < 0") {
+    HIP_CHECK_ERROR(hipExtGetLinkTypeAndHopCount(-1, -2, &link_type, &hop_count),
+                    hipErrorInvalidValue);
+  }
+
+  SECTION("linktype == nullptr") {
+    HIP_CHECK_ERROR(hipExtGetLinkTypeAndHopCount(0, 1, nullptr, &hop_count), hipErrorInvalidValue);
+  }
+
+  SECTION("hopcount == nullptr") {
+    HIP_CHECK_ERROR(hipExtGetLinkTypeAndHopCount(0, 1, &link_type, nullptr), hipErrorInvalidValue);
+  }
+
+  SECTION("linktype and hopcount == nullptr") {
+    HIP_CHECK_ERROR(hipExtGetLinkTypeAndHopCount(0, 1, nullptr, nullptr), hipErrorInvalidValue);
+  }
+}
+#endif