Nuclex.Support/Source/Licensing/LicenseKey.Test.cs
Markus Ewald f4b2062e19 Added license key class that had been lingering in the code snippets sections of my homepage for months now
git-svn-id: file:///srv/devel/repo-conversion/nusu@6 d2e56fa2-650e-0410-a79f-9358c0239efd
2007-03-28 22:19:34 +00:00

76 lines
2.0 KiB
C#

using System;
using System.Collections;
#if UNITTEST
using NUnit.Framework;
namespace Nuclex.Licensing {
/// <summary>Unit test for the license key class</summary>
[TestFixture]
public class LicenseKeyTest {
/// <summary>Validates the correct translation of keys to GUIDs and back</summary>
[Test]
public void TestGuidKeyConversion() {
for(int i = 0; i < 128; ++i) {
// Create a new BitArray with the n.th bit set
BitArray guidBits = new BitArray(128);
guidBits[i] = true;
// Create a GUID from this Bitarray
byte[] guidBytes = new byte[16];
guidBits.CopyTo(guidBytes, 0);
Guid originalGuid = new Guid(guidBytes);
// Convert the GUID into a license key and back to a GUID
string licenseKey = new LicenseKey(originalGuid).ToString();
Guid rebuiltGuid = LicenseKey.Parse(licenseKey).ToGuid();
// Verify that the original GUID matches the fore-and-back converted one
Assert.AreEqual(originalGuid, rebuiltGuid, "Test for GUID bit " + i);
}
}
/// <summary>Tests whether license keys can be modified without destroying them</summary>
[Test]
public void TestKeyModification() {
for(int i = 0; i < 4; ++i) {
for(int j = 0; j < 8; ++j) {
LicenseKey testKey = new LicenseKey(
new Guid(-1, -1, -1, 255, 255, 255, 255, 255, 255, 255, 255)
);
string originalString = testKey.ToString();
testKey[i] &= ~(1 << j);
string modifiedString = testKey.ToString();
Assert.IsTrue(
originalString != modifiedString, "Modified string differs from original"
);
testKey[i] |= (1 << j);
string revertedString = testKey.ToString();
Assert.AreEqual(
originalString, revertedString, "Original state restorable"
);
} // for j
} // for i
}
}
} // namespace Nuclex.Licensing
#endif // UNITTEST