diff --git a/liberty/test/cpp/TestLibertyClasses.cc b/liberty/test/cpp/TestLibertyClasses.cc
index 60470e17..70868898 100644
--- a/liberty/test/cpp/TestLibertyClasses.cc
+++ b/liberty/test/cpp/TestLibertyClasses.cc
@@ -1993,8 +1993,6 @@ TEST_F(LinearModelTest, Table3ReportValue) {
 TEST_F(LinearModelTest, TableModelReport) {
   TablePtr tbl = std::make_shared<Table>(42.0f);
   TableModel model(tbl, nullptr, ScaleFactorType::cell, RiseFall::rise());
-  const Units *units = lib_->units();
-  Report *report_obj = nullptr;
   // report needs Report*; test order/axes instead
   EXPECT_EQ(model.order(), 0);
   EXPECT_EQ(model.axis1(), nullptr);
@@ -3285,8 +3283,9 @@ TEST(TestCellTest, FootprintDefault) {
   TestCell cell(&lib, "CELL1", "test.lib");
   const char *fp = cell.footprint();
   // Empty string or nullptr for default
-  if (fp)
+  if (fp) {
     EXPECT_EQ(fp, "");
+  }
 }
 
 TEST(TestCellTest, SetFootprint) {
@@ -3300,8 +3299,9 @@ TEST(TestCellTest, UserFunctionClassDefault) {
   LibertyLibrary lib("test_lib", "test.lib");
   TestCell cell(&lib, "CELL1", "test.lib");
   const char *ufc = cell.userFunctionClass();
-  if (ufc)
+  if (ufc) {
     EXPECT_EQ(ufc, "");
+  }
 }
 
 TEST(TestCellTest, SetUserFunctionClass) {
diff --git a/network/test/cpp/TestNetwork.cc b/network/test/cpp/TestNetwork.cc
index 7ccfbfdb..1d9cd15b 100644
--- a/network/test/cpp/TestNetwork.cc
+++ b/network/test/cpp/TestNetwork.cc
@@ -1141,7 +1141,6 @@ TEST(ConcreteNetworkTest, FindCellViaNetwork) {
 TEST(ConcreteNetworkTest, FindAnyCell) {
   ConcreteNetwork network;
   Library *lib1 = network.makeLibrary("lib1", "lib1.lib");
-  Library *lib2 = network.makeLibrary("lib2", "lib2.lib");
   network.makeCell(lib1, "INV_X1", true, "lib1.lib");
   Cell *found = network.findAnyCell("INV_X1");
   EXPECT_NE(found, nullptr);
diff --git a/parasitics/test/cpp/TestParasitics.cc b/parasitics/test/cpp/TestParasitics.cc
index 6583aa47..eddb6967 100644
--- a/parasitics/test/cpp/TestParasitics.cc
+++ b/parasitics/test/cpp/TestParasitics.cc
@@ -1304,7 +1304,6 @@ TEST_F(StaParasiticsTest, ParasiticNodeResistorMap) {
 // Test findNode (deprecated) - delegates to findParasiticNode
 TEST_F(StaParasiticsTest, FindNodeDeprecated) {
   ASSERT_NO_THROW(( [&](){
-  Parasitics *parasitics = sta_->findParasitics("default");
   ConcretePiElmore pe(1e-12f, 100.0f, 2e-12f);
   // findNode on non-network parasitic should work but return nullptr
   // since it's not a parasitic network
@@ -1317,7 +1316,6 @@ TEST_F(StaParasiticsTest, FindNodeDeprecated) {
 // Test unannotatedLoads through parasitics API with PiElmore
 TEST_F(StaParasiticsTest, UnannotatedLoadsPiElmore) {
   ASSERT_NO_THROW(( [&](){
-  Parasitics *parasitics = sta_->findParasitics("default");
   ConcretePiElmore pe(1e-12f, 100.0f, 2e-12f);
   // With no network loads, should just return what parasitics->loads returns
   // which needs a connected pin. With nullptr pin, this will likely crash
diff --git a/sdc/test/cpp/TestSdcClasses.cc b/sdc/test/cpp/TestSdcClasses.cc
index 7b8f1c6c..b93185cf 100644
--- a/sdc/test/cpp/TestSdcClasses.cc
+++ b/sdc/test/cpp/TestSdcClasses.cc
@@ -3542,8 +3542,6 @@ TEST_F(SdcInitTest, DisabledPortsSetAll) {
 
 // PortExtCap: operations (needs Port* constructor)
 TEST_F(SdcInitTest, PortExtCapSetGet) {
-  // Need a port to construct PortExtCap
-  Network *network = sta_->cmdNetwork();
   // PortExtCap default constructor
   PortExtCap pec;
   pec.setPinCap(nullptr, 0.1f, RiseFall::rise(), MinMax::max());
diff --git a/spice/test/cpp/TestSpice.cc b/spice/test/cpp/TestSpice.cc
index 7899fda9..8504d28a 100644
--- a/spice/test/cpp/TestSpice.cc
+++ b/spice/test/cpp/TestSpice.cc
@@ -1302,8 +1302,12 @@ TEST_F(SpiceSmokeTest, RiseFallRangeValues) {
   auto range = RiseFall::range();
   int idx = 0;
   for (auto rf : range) {
-    if (idx == 0) EXPECT_EQ(rf, RiseFall::rise());
-    if (idx == 1) EXPECT_EQ(rf, RiseFall::fall());
+    if (idx == 0) {
+      EXPECT_EQ(rf, RiseFall::rise());
+    }
+    if (idx == 1) {
+      EXPECT_EQ(rf, RiseFall::fall());
+    }
     idx++;
   }
   EXPECT_EQ(idx, 2);
@@ -1554,7 +1558,6 @@ TEST_F(SpiceDesignTest, LibertyCellTimingArcs) {
 // Verify pin connectivity for SPICE net writing
 TEST_F(SpiceDesignTest, PinConnectivity) {
   Network *network = sta_->cmdNetwork();
-  Instance *top = network->topInstance();
 
   // The internal net n1 connects and1:ZN to buf1:A
   Pin *and1_zn = network->findPin("and1/ZN");
diff --git a/verilog/test/cpp/TestVerilog.cc b/verilog/test/cpp/TestVerilog.cc
index cd959339..bac2ef32 100644
--- a/verilog/test/cpp/TestVerilog.cc
+++ b/verilog/test/cpp/TestVerilog.cc
@@ -316,7 +316,7 @@ TEST_F(VerilogTest, EscapedWithBackslash) {
   std::string name = "\\a\\b ";
   std::string result = instanceVerilogToSta(&name);
   EXPECT_FALSE(result.empty());
-  // The backslash inside should be escaped as \\
+  // The backslash inside should be escaped as double-backslash
   EXPECT_NE(result.find("\\\\"), std::string::npos);
 }