tests: Migrate to placement_new from reinterpret casting

reinterpret_cast is prohibited by the C++ core guidelines because
it takes the behavior outside the language definition and gives
problems with type safety. Placement-new on the other-hand allows
to control the object storage while still properly instantiating
an object,keeping the behavior inside the C++ language
specification.

Change-Id: Ifab9ea58b932db11d7af0b9def119bed1bfdc44d
Signed-off-by: Pavithra Barithaya <pavithrabarithaya07@gmail.com>
diff --git a/platform-mc/test/terminus_manager_test.cpp b/platform-mc/test/terminus_manager_test.cpp
index 6eb2439..52abfc8 100644
--- a/platform-mc/test/terminus_manager_test.cpp
+++ b/platform-mc/test/terminus_manager_test.cpp
@@ -142,20 +142,19 @@
 
     std::array<uint8_t, sizeof(pldm_msg_hdr) + getTidRespLen> getTidResp0{
         0x00, 0x02, 0x02, 0x00, 0x00};
-    rc = mockTerminusManager.enqueueResponse(
-        reinterpret_cast<pldm_msg*>(getTidResp0.data()), sizeof(getTidResp0));
+    rc = mockTerminusManager.enqueueResponse(new (getTidResp0.data()) pldm_msg,
+                                             sizeof(getTidResp0));
     EXPECT_EQ(rc, PLDM_SUCCESS);
     std::array<uint8_t, sizeof(pldm_msg_hdr) + setTidRespLen> setTidResp0{
         0x00, 0x02, 0x01, 0x00};
-    rc = mockTerminusManager.enqueueResponse(
-        reinterpret_cast<pldm_msg*>(setTidResp0.data()), sizeof(setTidResp0));
+    rc = mockTerminusManager.enqueueResponse(new (setTidResp0.data()) pldm_msg,
+                                             sizeof(setTidResp0));
     EXPECT_EQ(rc, PLDM_SUCCESS);
     std::array<uint8_t, sizeof(pldm_msg_hdr) + getPldmTypesRespLen>
         getPldmTypesResp0{0x00, 0x02, 0x04, 0x00, 0x01, 0x00,
                           0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
     rc = mockTerminusManager.enqueueResponse(
-        reinterpret_cast<pldm_msg*>(getPldmTypesResp0.data()),
-        sizeof(getPldmTypesResp0));
+        new (getPldmTypesResp0.data()) pldm_msg, sizeof(getPldmTypesResp0));
     EXPECT_EQ(rc, PLDM_SUCCESS);
 
     pldm::MctpInfos mctpInfos{};
@@ -169,15 +168,14 @@
 
     std::array<uint8_t, sizeof(pldm_msg_hdr) + getTidRespLen> getTidResp1{
         0x00, 0x02, 0x02, 0x00, 0x01};
-    rc = mockTerminusManager.enqueueResponse(
-        reinterpret_cast<pldm_msg*>(getTidResp1.data()), sizeof(getTidResp1));
+    rc = mockTerminusManager.enqueueResponse(new (getTidResp1.data()) pldm_msg,
+                                             sizeof(getTidResp1));
+    EXPECT_EQ(rc, PLDM_SUCCESS);
+    rc = mockTerminusManager.enqueueResponse(new (setTidResp0.data()) pldm_msg,
+                                             sizeof(setTidResp0));
     EXPECT_EQ(rc, PLDM_SUCCESS);
     rc = mockTerminusManager.enqueueResponse(
-        reinterpret_cast<pldm_msg*>(setTidResp0.data()), sizeof(setTidResp0));
-    EXPECT_EQ(rc, PLDM_SUCCESS);
-    rc = mockTerminusManager.enqueueResponse(
-        reinterpret_cast<pldm_msg*>(getPldmTypesResp0.data()),
-        sizeof(getPldmTypesResp0));
+        new (getPldmTypesResp0.data()) pldm_msg, sizeof(getPldmTypesResp0));
     EXPECT_EQ(rc, PLDM_SUCCESS);
 
     mockTerminusManager.discoverMctpTerminus(mctpInfos);
@@ -201,7 +199,7 @@
     std::array<uint8_t, sizeof(pldm_msg_hdr) + getTidRespLen> getTidResp0{
         0x00, 0x02, 0x02, 0x00, PLDM_TID_RESERVED};
     auto rc = mockTerminusManager.enqueueResponse(
-        reinterpret_cast<pldm_msg*>(getTidResp0.data()), sizeof(getTidResp0));
+        new (getTidResp0.data()) pldm_msg, sizeof(getTidResp0));
     EXPECT_EQ(rc, PLDM_SUCCESS);
 
     pldm::MctpInfos mctpInfos{};
@@ -215,11 +213,11 @@
     std::array<uint8_t, sizeof(pldm_msg_hdr) + setTidRespLen> setTidResp1{
         0x00, 0x02, 0x01, PLDM_ERROR};
 
-    rc = mockTerminusManager.enqueueResponse(
-        reinterpret_cast<pldm_msg*>(getTidResp1.data()), sizeof(getTidResp1));
+    rc = mockTerminusManager.enqueueResponse(new (getTidResp1.data()) pldm_msg,
+                                             sizeof(getTidResp1));
     EXPECT_EQ(rc, PLDM_SUCCESS);
-    rc = mockTerminusManager.enqueueResponse(
-        reinterpret_cast<pldm_msg*>(setTidResp1.data()), sizeof(setTidResp1));
+    rc = mockTerminusManager.enqueueResponse(new (setTidResp1.data()) pldm_msg,
+                                             sizeof(setTidResp1));
     EXPECT_EQ(rc, PLDM_SUCCESS);
     mockTerminusManager.removeMctpTerminus(mctpInfos);
     EXPECT_EQ(0, termini.size());
@@ -233,16 +231,15 @@
     std::array<uint8_t, sizeof(pldm_msg_hdr) + getPldmTypesRespLen>
         getPldmTypesResp2{0x00, 0x02, 0x04, PLDM_ERROR, 0x01, 0x00,
                           0x00, 0x00, 0x00, 0x00,       0x00, 0x00};
-    rc = mockTerminusManager.enqueueResponse(
-        reinterpret_cast<pldm_msg*>(getTidResp2.data()), sizeof(getTidResp2));
+    rc = mockTerminusManager.enqueueResponse(new (getTidResp2.data()) pldm_msg,
+                                             sizeof(getTidResp2));
     EXPECT_EQ(rc, PLDM_SUCCESS);
-    rc = mockTerminusManager.enqueueResponse(
-        reinterpret_cast<pldm_msg*>(setTidResp2.data()), sizeof(setTidResp2));
+    rc = mockTerminusManager.enqueueResponse(new (setTidResp2.data()) pldm_msg,
+                                             sizeof(setTidResp2));
     EXPECT_EQ(rc, PLDM_SUCCESS);
 
     rc = mockTerminusManager.enqueueResponse(
-        reinterpret_cast<pldm_msg*>(getPldmTypesResp2.data()),
-        sizeof(getPldmTypesResp2));
+        new (getPldmTypesResp2.data()) pldm_msg, sizeof(getPldmTypesResp2));
     EXPECT_EQ(rc, PLDM_SUCCESS);
     mockTerminusManager.removeMctpTerminus(mctpInfos);
     EXPECT_EQ(0, termini.size());
@@ -260,14 +257,14 @@
 
     std::array<uint8_t, sizeof(pldm_msg_hdr) + getTidRespLen> getTidResp0{
         0x00, 0x02, 0x02, 0x00, 0x00};
-    rc = mockTerminusManager.enqueueResponse(
-        reinterpret_cast<pldm_msg*>(getTidResp0.data()), sizeof(getTidResp0));
+    rc = mockTerminusManager.enqueueResponse(new (getTidResp0.data()) pldm_msg,
+                                             sizeof(getTidResp0));
     EXPECT_EQ(rc, PLDM_SUCCESS);
 
     std::array<uint8_t, sizeof(pldm_msg_hdr) + setTidRespLen> setTidResp0{
         0x00, 0x02, 0x01, 0x00};
-    rc = mockTerminusManager.enqueueResponse(
-        reinterpret_cast<pldm_msg*>(setTidResp0.data()), sizeof(setTidResp0));
+    rc = mockTerminusManager.enqueueResponse(new (setTidResp0.data()) pldm_msg,
+                                             sizeof(setTidResp0));
     EXPECT_EQ(rc, PLDM_SUCCESS);
 
     uint8_t supportedType1Byte =
@@ -278,8 +275,7 @@
                           0x00, 0x00, 0x00, 0x00, 0x00,
                           0x00, 0x00};
     rc = mockTerminusManager.enqueueResponse(
-        reinterpret_cast<pldm_msg*>(getPldmTypesResp0.data()),
-        sizeof(getPldmTypesResp0));
+        new (getPldmTypesResp0.data()) pldm_msg, sizeof(getPldmTypesResp0));
     EXPECT_EQ(rc, PLDM_SUCCESS);
 
     pldm::MctpInfos mctpInfos{};
@@ -315,14 +311,14 @@
 
     std::array<uint8_t, sizeof(pldm_msg_hdr) + getTidRespLen> getTidResp0{
         0x00, 0x02, 0x02, 0x00, 0x00};
-    rc = mockTerminusManager.enqueueResponse(
-        reinterpret_cast<pldm_msg*>(getTidResp0.data()), sizeof(getTidResp0));
+    rc = mockTerminusManager.enqueueResponse(new (getTidResp0.data()) pldm_msg,
+                                             sizeof(getTidResp0));
     EXPECT_EQ(rc, PLDM_SUCCESS);
 
     std::array<uint8_t, sizeof(pldm_msg_hdr) + setTidRespLen> setTidResp0{
         0x00, 0x02, 0x01, 0x00};
-    rc = mockTerminusManager.enqueueResponse(
-        reinterpret_cast<pldm_msg*>(setTidResp0.data()), sizeof(setTidResp0));
+    rc = mockTerminusManager.enqueueResponse(new (setTidResp0.data()) pldm_msg,
+                                             sizeof(setTidResp0));
     EXPECT_EQ(rc, PLDM_SUCCESS);
 
     uint8_t byte0 = (1 << (PLDM_BASE % 8)) + (1 << (PLDM_PLATFORM % 8)) +
@@ -331,8 +327,7 @@
         getPldmTypesResp0{0x00, 0x02, 0x04, 0x00, byte0, 0x00,
                           0x00, 0x00, 0x00, 0x00, 0x00,  0x00};
     rc = mockTerminusManager.enqueueResponse(
-        reinterpret_cast<pldm_msg*>(getPldmTypesResp0.data()),
-        sizeof(getPldmTypesResp0));
+        new (getPldmTypesResp0.data()) pldm_msg, sizeof(getPldmTypesResp0));
     EXPECT_EQ(rc, PLDM_SUCCESS);
 
     /* Response GetPLDMVersion BASE, CC=0 */
@@ -358,7 +353,7 @@
             0x00, 0x00, 0x00, 0x00, 0x00,  0x00, 0x00, 0x00, 0x00,
             0x00, 0x00, 0x00, 0x00, 0x00,  0x00, 0x00, 0x00, 0x00};
     rc = mockTerminusManager.enqueueResponse(
-        reinterpret_cast<pldm_msg*>(getPldmCommandBaseResp0.data()),
+        new (getPldmCommandBaseResp0.data()) pldm_msg,
         sizeof(getPldmCommandBaseResp0));
     EXPECT_EQ(rc, PLDM_SUCCESS);
 
@@ -406,7 +401,7 @@
             0x00, 0x00,  0x00,  0x00, 0x00,  0x00,   0x00,  0x00, 0x00,
             0x00, 0x00,  0x00,  0x00, 0x00,  0x00,   0x00,  0x00, 0x00};
     rc = mockTerminusManager.enqueueResponse(
-        reinterpret_cast<pldm_msg*>(getPldmCommandPlatResp0.data()),
+        new (getPldmCommandPlatResp0.data()) pldm_msg,
         sizeof(getPldmCommandPlatResp0));
     EXPECT_EQ(rc, PLDM_SUCCESS);
 
@@ -435,7 +430,7 @@
             0x00, 0x00, 0x00, 0x00, 0x00,  0x00,  0x00, 0x00, 0x00,
             0x00, 0x00, 0x00, 0x00, 0x00,  0x00,  0x00, 0x00};
     rc = mockTerminusManager.enqueueResponse(
-        reinterpret_cast<pldm_msg*>(getPldmCommandBiosResp0.data()),
+        new (getPldmCommandBiosResp0.data()) pldm_msg,
         sizeof(getPldmCommandBiosResp0));
     EXPECT_EQ(rc, PLDM_SUCCESS);
 
@@ -465,7 +460,7 @@
             0x00, 0x00, 0x00, 0x00, 0x00,  0x00, 0x00, 0x00, 0x00,
             0x00, 0x00, 0x00, 0x00, 0x00,  0x00, 0x00, 0x00};
     rc = mockTerminusManager.enqueueResponse(
-        reinterpret_cast<pldm_msg*>(getPldmCommandFruResp0.data()),
+        new (getPldmCommandFruResp0.data()) pldm_msg,
         sizeof(getPldmCommandFruResp0));
     EXPECT_EQ(rc, PLDM_SUCCESS);