diff --git a/test/openpower-pels/host_notifier_test.cpp b/test/openpower-pels/host_notifier_test.cpp
index d3018dc..9a49a82 100644
--- a/test/openpower-pels/host_notifier_test.cpp
+++ b/test/openpower-pels/host_notifier_test.cpp
@@ -52,7 +52,7 @@
 
         mockHostIface = reinterpret_cast<MockHostInterface*>(hostIface.get());
 
-        auto send = [this](uint32_t id, uint32_t size) {
+        auto send = [this](uint32_t /*id*/, uint32_t /*size*/) {
             return this->mockHostIface->send(0);
         };
 
@@ -368,10 +368,10 @@
 
     HostNotifier notifier{repo, dataIface, std::move(hostIface)};
 
-    auto sendFailure = [this](uint32_t id, uint32_t size) {
+    auto sendFailure = [this](uint32_t /*id*/, uint32_t /*size*/) {
         return this->mockHostIface->send(1);
     };
-    auto sendSuccess = [this](uint32_t id, uint32_t size) {
+    auto sendSuccess = [this](uint32_t /*id*/, uint32_t /*size*/) {
         return this->mockHostIface->send(0);
     };
 
@@ -418,7 +418,7 @@
     HostNotifier notifier{repo, dataIface, std::move(hostIface)};
 
     // Every call will fail
-    auto sendFailure = [this](uint32_t id, uint32_t size) {
+    auto sendFailure = [this](uint32_t /*id*/, uint32_t /*size*/) {
         return this->mockHostIface->send(1);
     };
 
diff --git a/test/openpower-pels/mocks.hpp b/test/openpower-pels/mocks.hpp
index a2c3b5a..a6a2665 100644
--- a/test/openpower-pels/mocks.hpp
+++ b/test/openpower-pels/mocks.hpp
@@ -202,7 +202,7 @@
      * @param[in] fd - The file descriptor used
      * @param[in] events - The event bits
      */
-    void receive(sdeventplus::source::IO& source, int fd,
+    void receive(sdeventplus::source::IO& /*source*/, int /*fd*/,
                  uint32_t events) override
     {
         if (!(events & EPOLLIN))
diff --git a/test/openpower-pels/pel_manager_test.cpp b/test/openpower-pels/pel_manager_test.cpp
index a2cb5fd..4ddf81b 100644
--- a/test/openpower-pels/pel_manager_test.cpp
+++ b/test/openpower-pels/pel_manager_test.cpp
@@ -813,7 +813,11 @@
     // Delete them all at once
     auto logPath = getPELRepoPath() / "logs";
     std::string cmd = "rm " + logPath.string() + "/*";
-    system(cmd.c_str());
+
+    {
+        auto rc = system(cmd.c_str());
+        EXPECT_EQ(rc, 0);
+    }
 
     EXPECT_EQ(countPELsInRepo(), 0);
 
diff --git a/test/openpower-pels/pel_utils.cpp b/test/openpower-pels/pel_utils.cpp
index b596d34..b9b46a6 100644
--- a/test/openpower-pels/pel_utils.cpp
+++ b/test/openpower-pels/pel_utils.cpp
@@ -230,9 +230,11 @@
         case TestPELType::failingMTMSSection:
             data.insert(data.end(), failingMTMSSection.begin(),
                         failingMTMSSection.end());
+            break;
         case TestPELType::extendedUserDataSection:
             data.insert(data.end(), extendedUserDataSection.begin(),
                         extendedUserDataSection.end());
+            break;
     }
     return data;
 }
diff --git a/test/openpower-pels/stream_test.cpp b/test/openpower-pels/stream_test.cpp
index 361cfc5..d0582d7 100644
--- a/test/openpower-pels/stream_test.cpp
+++ b/test/openpower-pels/stream_test.cpp
@@ -129,9 +129,11 @@
     std::vector<uint8_t> data{0x11, 0x22, 0x33, 0x44, 0x55, 0x66,
                               0x77, 0x88, 0x99, 0xaa, 0xbb, 0xcc};
     Stream stream{data};
-    uint8_t buf[data.size()];
 
-    stream.read(buf, data.size());
+    auto buf = decltype(data)(data.size());
+    ASSERT_EQ(data.size(), buf.size());
+
+    stream.read(buf.data(), buf.size());
 
     for (size_t i = 0; i < data.size(); i++)
     {
@@ -142,7 +144,7 @@
     }
 
     stream.offset(6);
-    stream.write(buf, 6);
+    stream.write(buf.data(), 6);
     for (size_t i = 0; i < 6; i++)
     {
         EXPECT_EQ(buf[i], data[i + 6]);