diff --git a/analyzers/tests/SonarAnalyzer.Test/Rules/ClassShouldNotBeEmptyTest.cs b/analyzers/tests/SonarAnalyzer.Test/Rules/ClassShouldNotBeEmptyTest.cs
index 23ff7b2e28a..255fec4d4b8 100644
--- a/analyzers/tests/SonarAnalyzer.Test/Rules/ClassShouldNotBeEmptyTest.cs
+++ b/analyzers/tests/SonarAnalyzer.Test/Rules/ClassShouldNotBeEmptyTest.cs
@@ -64,6 +64,13 @@ public void ClassShouldNotBeEmpty_CSharp10() =>
             .WithOptions(ParseOptionsHelper.FromCSharp10)
             .Verify();
 
+    [TestMethod]
+    public void ClassShouldNotBeEmpty_CSharp12() =>
+        builderCS
+            .AddPaths("ClassShouldNotBeEmpty.CSharp12.cs")
+            .WithOptions(ParseOptionsHelper.FromCSharp12)
+            .Verify();
+
     [TestMethod]
     public void ClassShouldNotBeEmpty_Inheritance_CS() =>
         builderCS
diff --git a/analyzers/tests/SonarAnalyzer.Test/TestCases/ClassShouldNotBeEmpty.CSharp12.cs b/analyzers/tests/SonarAnalyzer.Test/TestCases/ClassShouldNotBeEmpty.CSharp12.cs
new file mode 100644
index 00000000000..782bab7df65
--- /dev/null
+++ b/analyzers/tests/SonarAnalyzer.Test/TestCases/ClassShouldNotBeEmpty.CSharp12.cs
@@ -0,0 +1,10 @@
+using System.Collections.Generic;
+
+public class TestCaseData(List<int> list, int expectedCount)
+{
+    public List<int> List { get; }
+    public int ExpectedCount { get; }
+}
+
+// See https://github.com/SonarSource/sonar-dotnet/issues/9011
+public class CountTestCaseData(List<int> list, int expectedCount) : TestCaseData(list, expectedCount); // Noncompliant - FP