diff --git a/src/Reflectify/Reflectify.cs b/src/Reflectify/Reflectify.cs
index 2c0c789..ee19bd1 100644
--- a/src/Reflectify/Reflectify.cs
+++ b/src/Reflectify/Reflectify.cs
@@ -13,7 +13,7 @@
 
 namespace Reflectify;
 
-public static class TypeExtensions
+internal static class TypeExtensions
 {
     private static readonly ConcurrentDictionary<(Type Type, MemberKind Kind), Reflector> ReflectorCache = new();
 
@@ -55,7 +55,7 @@ private static Reflector GetFor(Type typeToReflect, MemberKind kind)
     }
 }
 
-public static class PropertyInfoExtensions
+internal static class PropertyInfoExtensions
 {
     /// <summary>
     /// Returns <c>true</c> if the property is an indexer, or <c>false</c> otherwise.
@@ -83,8 +83,9 @@ public static bool IsExplicitlyImplemented(this PropertyInfo prop)
 /// Defines the kinds of members you want to get when querying for the fields and properties of a type.
 /// </summary>
 [Flags]
-public enum MemberKind
+internal enum MemberKind
 {
+    None,
     Public = 1,
     Internal = 2,
     ExplicitlyImplemented = 4,
diff --git a/src/Reflectify/Reflectify.csproj b/src/Reflectify/Reflectify.csproj
index 376e9b8..f5a3e35 100644
--- a/src/Reflectify/Reflectify.csproj
+++ b/src/Reflectify/Reflectify.csproj
@@ -10,7 +10,13 @@
         <DefineConstants>REFLECTIFY_COMPILE</DefineConstants>
     </PropertyGroup>
 
-    <PropertyGroup Condition=" '$(Configuration)' == 'Debug' ">
+  <ItemGroup Label="Internals visible to">
+    <AssemblyAttribute Include="System.Runtime.CompilerServices.InternalsVisibleToAttribute">
+      <_Parameter1>Reflectify.Specs</_Parameter1>
+    </AssemblyAttribute>
+  </ItemGroup>
+
+  <PropertyGroup Condition=" '$(Configuration)' == 'Debug' ">
       <DocumentationFile>bin\Debug\Reflectify.xml</DocumentationFile>
     </PropertyGroup>
 
diff --git a/tests/Reflectify.Specs/TypeExtensionsSpecs.cs b/tests/Reflectify.Specs/TypeExtensionsSpecs.cs
index 495cdb2..9a26ff1 100644
--- a/tests/Reflectify.Specs/TypeExtensionsSpecs.cs
+++ b/tests/Reflectify.Specs/TypeExtensionsSpecs.cs
@@ -1,6 +1,4 @@
 using System.Globalization;
-using System.Linq;
-using System.Reflection;
 using FluentAssertions;
 using JetBrains.Annotations;
 using Xunit;
@@ -26,7 +24,8 @@ public void Can_get_all_public_explicit_and_default_interface_properties()
                 new { Name = "InterfaceProperty", PropertyType = typeof(string) },
                 new
                 {
-                    Name = $"{typeof(IInterfaceWithSingleProperty).FullName!.Replace("+", ".")}.ExplicitlyImplementedProperty",
+                    Name =
+                        $"{typeof(IInterfaceWithSingleProperty).FullName!.Replace("+", ".")}.ExplicitlyImplementedProperty",
                     PropertyType = typeof(string)
                 },
 #if NETCOREAPP3_0_OR_GREATER
@@ -95,11 +94,7 @@ public void Prefers_normal_property_over_explicitly_implemented_one()
             // Assert
             properties.Should().BeEquivalentTo(new[]
             {
-                new
-                {
-                    Name = "ExplicitlyImplementedProperty",
-                    PropertyType = typeof(int)
-                }
+                new { Name = "ExplicitlyImplementedProperty", PropertyType = typeof(int) }
             });
         }
 
@@ -144,6 +139,16 @@ public void Will_ignore_indexers()
                 new { Name = "Foo", PropertyType = typeof(object) }
             });
         }
+
+        [Fact]
+        public void Supports_returning_nothing_if_asked_for()
+        {
+            // Act
+            var properties = typeof(ClassWithIndexer).GetProperties(MemberKind.None);
+
+            // Assert
+            properties.Should().BeEmpty();
+        }
     }
 
     public class GetFields
@@ -190,6 +195,16 @@ public void Can_find_all_fields()
                 new { Name = "ProtectedInternalField", FieldType = typeof(string) }
             });
         }
+
+        [Fact]
+        public void Supports_returning_nothing_if_asked_for()
+        {
+            // Act
+            var properties = typeof(ClassWithIndexer).GetFields(MemberKind.None);
+
+            // Assert
+            properties.Should().BeEmpty();
+        }
     }
 
     public class GetMembers