diff --git a/src/xunit.analyzers.tests/Analyzers/X1000/X1056_TypeMustHaveSinglePublicConstructorTests.cs b/src/xunit.analyzers.tests/Analyzers/X1000/X1056_TypeMustHaveSinglePublicConstructorTests.cs
index d2d38d89..602685b9 100644
--- a/src/xunit.analyzers.tests/Analyzers/X1000/X1056_TypeMustHaveSinglePublicConstructorTests.cs
+++ b/src/xunit.analyzers.tests/Analyzers/X1000/X1056_TypeMustHaveSinglePublicConstructorTests.cs
@@ -54,6 +54,13 @@ static TestClass_DualConstructor() { }
 				[Fact] public void TestMethod() { }
 			}
 
+			public class InheritedTestClass_DefaultConstructor : AbstractTestClass { }
+
+			public class {|#1:InheritedTestClass_DualConstructor|} : AbstractTestClass {
+				public InheritedTestClass_DualConstructor() { }
+				public InheritedTestClass_DualConstructor(int x) { }
+			}
+
 			// Fixture constructors
 
 			public class Fixture_DefaultConstructor { }
@@ -101,6 +108,7 @@ public class {|#11:CollectionFixtureContainer|} :
 			""";
 		var expected = new[] {
 			Verify.Diagnostic().WithLocation(0).WithArguments("Test class", "TestClass_DualConstructor"),
+			Verify.Diagnostic().WithLocation(1).WithArguments("Test class", "InheritedTestClass_DualConstructor"),
 
 			Verify.Diagnostic().WithLocation(10).WithArguments("Fixture", "Fixture_DualConstructor"),
 			Verify.Diagnostic().WithLocation(10).WithArguments("Fixture", "Fixture_Abstract"),
diff --git a/src/xunit.analyzers.tests/Suppressors/CA1515_MakeTypesInternalSuppressorTests.cs b/src/xunit.analyzers.tests/Suppressors/CA1515_MakeTypesInternalSuppressorTests.cs
index 126614f9..86d58886 100644
--- a/src/xunit.analyzers.tests/Suppressors/CA1515_MakeTypesInternalSuppressorTests.cs
+++ b/src/xunit.analyzers.tests/Suppressors/CA1515_MakeTypesInternalSuppressorTests.cs
@@ -24,10 +24,18 @@ [Fact] public void TestMethod() { }
 			public class {|#1:Theory_TestClass_Suppresses|} {
 				[Theory] public void TestMethod() { }
 			}
+
+			public abstract class {|#2:BaseTestClass_Suppresses|} {
+				[Fact] public void TestMethod() { }
+			}
+
+			public class {|#3:InheritedTestClass_Suppresses|} : BaseTestClass_Suppresses { }
 			""";
 		var expected = new[] {
 			new DiagnosticResult("CA1515", DiagnosticSeverity.Warning).WithLocation(0).WithIsSuppressed(true),
 			new DiagnosticResult("CA1515", DiagnosticSeverity.Warning).WithLocation(1).WithIsSuppressed(true),
+			new DiagnosticResult("CA1515", DiagnosticSeverity.Warning).WithLocation(2).WithIsSuppressed(true),
+			new DiagnosticResult("CA1515", DiagnosticSeverity.Warning).WithLocation(3).WithIsSuppressed(true),
 		};
 
 		await Verify.VerifySuppressor(code, CodeAnalysisNetAnalyzers.CA1515(), expected);
diff --git a/src/xunit.analyzers/Utility/CodeAnalysisExtensions.cs b/src/xunit.analyzers/Utility/CodeAnalysisExtensions.cs
index dd455d89..b6b5c6d9 100644
--- a/src/xunit.analyzers/Utility/CodeAnalysisExtensions.cs
+++ b/src/xunit.analyzers/Utility/CodeAnalysisExtensions.cs
@@ -269,7 +269,7 @@ static bool IsTestClassNonStrict(
 
 		return
 			type
-				.GetMembers()
+				.GetInheritedAndOwnMembers()
 				.OfType<IMethodSymbol>()
 				.Any(method =>
 					method