diff --git a/FFMpegCore.Test/ArgumentBuilderTest.cs b/FFMpegCore.Test/ArgumentBuilderTest.cs
index 167b2a4..0e6d715 100644
--- a/FFMpegCore.Test/ArgumentBuilderTest.cs
+++ b/FFMpegCore.Test/ArgumentBuilderTest.cs
@@ -682,4 +682,25 @@ public class ArgumentBuilderTest
         // Act & Assert
         Assert.ThrowsExactly<FileNotFoundException>(() => argument.Pre());
     }
+
+    [TestMethod]
+    public void Concat_Escape()
+    {
+        var arg = new DemuxConcatArgument([@"Heaven's River\05 - Investigation.m4b"]);
+        CollectionAssert.AreEquivalent(new[] { @"file 'Heaven'\''s River\05 - Investigation.m4b'" }, arg.Values.ToArray());
+    }
+
+    [TestMethod]
+    public void Audible_Aaxc_Test()
+    {
+        var arg = new AudibleEncryptionKeyArgument("123", "456");
+        Assert.AreEqual("-audible_key 123 -audible_iv 456", arg.Text);
+    }
+
+    [TestMethod]
+    public void Audible_Aax_Test()
+    {
+        var arg = new AudibleEncryptionKeyArgument("62689101");
+        Assert.AreEqual("-activation_bytes 62689101", arg.Text);
+    }
 }
diff --git a/FFMpegCore.Test/FFMpegArgumentProcessorTest.cs b/FFMpegCore.Test/FFMpegArgumentProcessorTest.cs
index 1820b9b..f9442df 100644
--- a/FFMpegCore.Test/FFMpegArgumentProcessorTest.cs
+++ b/FFMpegCore.Test/FFMpegArgumentProcessorTest.cs
@@ -97,25 +97,4 @@ public class FFMpegArgumentProcessorTest
             GlobalFFOptions.Configure(new FFOptions());
         }
     }
-
-    [TestMethod]
-    public void Concat_Escape()
-    {
-        var arg = new DemuxConcatArgument([@"Heaven's River\05 - Investigation.m4b"]);
-        CollectionAssert.AreEquivalent(new[] { @"file 'Heaven'\''s River\05 - Investigation.m4b'" }, arg.Values.ToArray());
-    }
-
-    [TestMethod]
-    public void Audible_Aaxc_Test()
-    {
-        var arg = new AudibleEncryptionKeyArgument("123", "456");
-        Assert.AreEqual("-audible_key 123 -audible_iv 456", arg.Text);
-    }
-
-    [TestMethod]
-    public void Audible_Aax_Test()
-    {
-        var arg = new AudibleEncryptionKeyArgument("62689101");
-        Assert.AreEqual("-activation_bytes 62689101", arg.Text);
-    }
 }