diff --git a/test/testanalyzerinformation.cpp b/test/testanalyzerinformation.cpp
index 35e86e0dbb8..13dd721f0a4 100644
--- a/test/testanalyzerinformation.cpp
+++ b/test/testanalyzerinformation.cpp
@@ -33,7 +33,7 @@ class TestAnalyzerInformation : public TestFixture {
     TestAnalyzerInformation() : TestFixture("TestAnalyzerInformation") {}
 
 private:
-    class AnalyzerInformationTest : public AnalyzerInformation
+    class AnalyzerInformationTest final : public AnalyzerInformation
     {
         friend class TestAnalyzerInformation;
     };
diff --git a/test/testcmdlineparser.cpp b/test/testcmdlineparser.cpp
index 7b5c646e4bf..3b343cbc92e 100644
--- a/test/testcmdlineparser.cpp
+++ b/test/testcmdlineparser.cpp
@@ -49,7 +49,7 @@ class TestCmdlineParser : public TestFixture {
     {}
 
 private:
-    class CmdLineLoggerTest : public CmdLineLogger
+    class CmdLineLoggerTest final : public CmdLineLogger
     {
     public:
         CmdLineLoggerTest() = default;
@@ -91,7 +91,7 @@ class TestCmdlineParser : public TestFixture {
         std::string buf;
     };
 
-    class CmdLineParserTest : public CmdLineParser
+    class CmdLineParserTest final : public CmdLineParser
     {
         friend class TestCmdlineParser;
     public:
diff --git a/test/testplatform.cpp b/test/testplatform.cpp
index c0f7bb2c017..71578745624 100644
--- a/test/testplatform.cpp
+++ b/test/testplatform.cpp
@@ -50,7 +50,7 @@ class TestPlatform : public TestFixture {
         TEST_CASE(wrong_root_node);
     }
 
-    class PlatformTest : public Platform
+    class PlatformTest final : public Platform
     {
         friend class TestPlatform;
     };
diff --git a/test/testsimplifytemplate.cpp b/test/testsimplifytemplate.cpp
index 494127fbee8..52df0597f92 100644
--- a/test/testsimplifytemplate.cpp
+++ b/test/testsimplifytemplate.cpp
@@ -321,12 +321,12 @@ class TestSimplifyTemplate : public TestFixture {
         TEST_CASE(dumpTemplateArgFrom);
     }
 
-    class TemplateSimplifierTest : public TemplateSimplifier
+    class TemplateSimplifierTest final : public TemplateSimplifier
     {
         friend class TestSimplifyTemplate;
     };
 
-    class TokenizerTest : public Tokenizer
+    class TokenizerTest final : public Tokenizer
     {
         friend class TestSimplifyTemplate;
     public:
diff --git a/test/testsimplifytypedef.cpp b/test/testsimplifytypedef.cpp
index 087e3759901..a2a0476ed0d 100644
--- a/test/testsimplifytypedef.cpp
+++ b/test/testsimplifytypedef.cpp
@@ -261,7 +261,7 @@ class TestSimplifyTypedef : public TestFixture {
         TEST_CASE(typedefInfo3);
     }
 
-    class TokenizerTest : public Tokenizer
+    class TokenizerTest final : public Tokenizer
     {
         friend class TestSimplifyTypedef;
     public:
diff --git a/test/testtokenize.cpp b/test/testtokenize.cpp
index aafbeafc58f..18f5619ac02 100644
--- a/test/testtokenize.cpp
+++ b/test/testtokenize.cpp
@@ -515,7 +515,7 @@ class TestTokenizer : public TestFixture {
         TEST_CASE(simplifyEnum2);
     }
 
-    class TokenizerTest : public Tokenizer
+    class TokenizerTest final : public Tokenizer
     {
         friend class TestTokenizer;
     public: