diff --git a/crypto/test/src/crypto/agreement/test/AllTests.cs b/crypto/test/src/crypto/agreement/test/AllTests.cs
index ea8f438e5..66853b285 100644
--- a/crypto/test/src/crypto/agreement/test/AllTests.cs
+++ b/crypto/test/src/crypto/agreement/test/AllTests.cs
@@ -1,4 +1,5 @@
-using System;
+#if !LIB
+using System;
using NUnit.Core;
using NUnit.Framework;
@@ -29,3 +30,4 @@ namespace Org.BouncyCastle.Crypto.Agreement.Tests
}
}
}
+#endif
diff --git a/crypto/test/src/openssl/test/AllTests.cs b/crypto/test/src/openssl/test/AllTests.cs
index 871b926b8..0cc2dcd85 100644
--- a/crypto/test/src/openssl/test/AllTests.cs
+++ b/crypto/test/src/openssl/test/AllTests.cs
@@ -1,9 +1,10 @@
-#if !LIB
using System;
using System.IO;
using System.Text;
+#if !LIB
using NUnit.Core;
+#endif
using NUnit.Framework;
using Org.BouncyCastle.Crypto;
@@ -34,6 +35,7 @@ namespace Org.BouncyCastle.OpenSsl.Tests
}
}
+#if !LIB
public static void Main(string[] args)
{
Suite.Run(new NullListener(), NUnit.Core.TestFilter.Empty);
@@ -49,6 +51,7 @@ namespace Org.BouncyCastle.OpenSsl.Tests
return suite;
}
}
+#endif
[Test]
public void TestOpenSsl()
@@ -129,4 +132,3 @@ namespace Org.BouncyCastle.OpenSsl.Tests
}
}
}
-#endif
diff --git a/crypto/test/src/util/io/pem/test/AllTests.cs b/crypto/test/src/util/io/pem/test/AllTests.cs
index 5f0c12c10..921c40cb8 100644
--- a/crypto/test/src/util/io/pem/test/AllTests.cs
+++ b/crypto/test/src/util/io/pem/test/AllTests.cs
@@ -1,11 +1,12 @@
-#if !LIB
using System;
using System.Collections;
using System.Collections.Specialized;
using System.IO;
using System.Text;
+#if !LIB
using NUnit.Core;
+#endif
using NUnit.Framework;
using Org.BouncyCastle.Crypto;
@@ -20,6 +21,7 @@ namespace Org.BouncyCastle.Utilities.IO.Pem.Tests
[TestFixture]
public class AllTests
{
+#if !LIB
public static void Main(string[] args)
{
Suite.Run(new NullListener(), NUnit.Core.TestFilter.Empty);
@@ -35,6 +37,7 @@ namespace Org.BouncyCastle.Utilities.IO.Pem.Tests
return suite;
}
}
+#endif
[Test]
public void TestPemLength()
@@ -73,4 +76,3 @@ namespace Org.BouncyCastle.Utilities.IO.Pem.Tests
}
}
}
-#endif
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