Added unit tests for changes to Crypt functions

UnitTests/PInvoke/Security/AdvApi32/WinCryptTests.cs

@@ -0,0 +1,49 @@
+using NUnit.Framework;
+using System.Linq;
+using static Vanara.PInvoke.AdvApi32;
+using static Vanara.PInvoke.Crypt32;
+
+namespace Vanara.PInvoke.Tests;
+
+[TestFixture()]
+public class WinCryptTests
+{
+	private const string myContName = "MyTestingContainer";
+
+	[Test]
+	public void CryptExportKeyTest()
+	{
+		CryptAcquireContext(out _, myContName, CryptProviderName.MS_ENHANCED_PROV, PROV_RSA_FULL, CryptAcquireContextFlags.CRYPT_DELETEKEYSET);
+		Assert.That(CryptAcquireContext(out SafeHCRYPTPROV hProv, myContName, CryptProviderName.MS_ENHANCED_PROV, PROV_RSA_FULL, CryptAcquireContextFlags.CRYPT_NEWKEYSET), ResultIs.Successful);
+		using (hProv)
+		{
+			// get user key from container
+			Assert.That(CryptGenKey(hProv, (ALG_ID)CertKeySpec.AT_KEYEXCHANGE, CryptGenKeyFlags.CRYPT_EXPORTABLE, out SafeHCRYPTKEY hKey), ResultIs.Successful);
+			using (hKey)
+			{
+				uint dwBlobLen = 0;
+				CryptExportKey(hKey, default, BlobType.PUBLICKEYBLOB, 0, null, ref dwBlobLen);
+				Assert.That(dwBlobLen, Is.GreaterThan(0));
+
+				var pbKeyBlobBuffer = new byte[dwBlobLen];
+				Assert.That(CryptExportKey(hKey, default, BlobType.PUBLICKEYBLOB, 0, pbKeyBlobBuffer, ref dwBlobLen), ResultIs.Successful);
+			}
+		}
+	}
+
+	[Test]
+	public void CryptEnumProviderTypesTest()
+	{
+		var output = CryptEnumProviderTypes().ToArray();
+		Assert.That(output, Is.Not.Empty);
+		output.WriteValues();
+	}
+
+	[Test]
+	public void CryptEnumKeyIdentifierPropertiesTest()
+	{
+		var output = CryptEnumKeyIdentifierProperties().ToArray();
+		Assert.That(output, Is.Not.Empty);
+		output.WriteValues();
+	}
+}