32f68c5ed5
Phase 14 complete — v0.4 Robustness milestone closed:
- HardwareTestHelper.GetIpOrSkip: Assert.Ignore when HEIDENHAIN/SIEMENS/MITSUBISHI_IP not set (ISS-007)
- Hardware_ConnectAsync_RealMachine [Category("Hardware")] added to all 3 integration test files
- LicenseFileTests: 4 tests covering empty, whitespace, valid base64, nonexistent path
- Validate_EmptyFingerprint_ReturnsFalse: confirms validator safe against empty input (ISS-008 scaffold)
- NcProgramManager.Tests.csproj: <Compile> entries for 2 new files
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
87 lines
2.6 KiB
C#
87 lines
2.6 KiB
C#
using System;
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using System.Security.Cryptography;
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using System.Text;
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using NUnit.Framework;
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using NcProgramManager.Licensing;
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namespace NcProgramManager.Tests.Unit
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{
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[TestFixture]
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internal class LicenseValidatorTests
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{
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private RSACryptoServiceProvider _rsa;
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private string _publicKeyXml;
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private LicenseValidator _validator;
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[SetUp]
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public void SetUp()
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{
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_rsa = new RSACryptoServiceProvider(2048);
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_publicKeyXml = _rsa.ToXmlString(false);
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_validator = new LicenseValidator(_publicKeyXml);
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}
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[TearDown]
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public void TearDown()
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{
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_rsa.Dispose();
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}
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private string Sign(string fingerprint)
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{
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byte[] data = Encoding.UTF8.GetBytes(fingerprint);
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byte[] sig = _rsa.SignData(data, new SHA256CryptoServiceProvider());
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return Convert.ToBase64String(sig);
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}
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[Test]
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public void Validate_ValidLicense_ReturnsTrue()
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{
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string fingerprint = "CPU123BOARD456";
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string license = Sign(fingerprint);
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Assert.IsTrue(_validator.Validate(fingerprint, license));
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}
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[Test]
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public void Validate_WrongMachineFingerprint_ReturnsFalse()
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{
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string license = Sign("CPU123BOARD456");
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Assert.IsFalse(_validator.Validate("DIFFERENT_MACHINE", license));
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}
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[Test]
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public void Validate_TamperedLicense_ReturnsFalse()
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{
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string license = Sign("CPU123BOARD456");
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string tampered = license.Substring(0, license.Length - 4) + "AAAA";
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Assert.IsFalse(_validator.Validate("CPU123BOARD456", tampered));
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}
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[Test]
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public void Validate_EmptyLicense_ReturnsFalse()
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{
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Assert.IsFalse(_validator.Validate("CPU123BOARD456", string.Empty));
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}
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[Test]
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public void Validate_NotBase64_ReturnsFalse()
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{
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Assert.IsFalse(_validator.Validate("CPU123BOARD456", "not-base64!!!"));
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}
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[Test]
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public void LicenseFile_TryRead_NonExistentPath_ReturnsFalse()
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{
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bool result = LicenseFile.TryRead(@"C:\nonexistent\path\license.lic", out string base64);
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Assert.IsFalse(result);
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Assert.IsNull(base64);
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}
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[Test]
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public void Validate_EmptyFingerprint_ReturnsFalse()
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{
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// Empty fingerprint — matches no valid license; must not throw
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Assert.IsFalse(_validator.Validate(string.Empty, Sign("CPU123")));
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}
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}
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}
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