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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using NUnit.Framework;
namespace TwoStepsAuthenticator.UnitTests {
[TestFixture]
public class CounterAuthenticatorTests {
private MockUsedCodesManager mockUsedCodesManager { get; set; }
[SetUp]
public void SetUp() {
this.mockUsedCodesManager = new MockUsedCodesManager();
}
[Test]
public void Uses_usedCodesManager() {
var authenticator = new CounterAuthenticator(usedCodeManager: mockUsedCodesManager);
var secret = Authenticator.GenerateKey();
var code = authenticator.GetCode(secret, 42uL);
authenticator.CheckCode(secret, code, 42uL);
Assert.AreEqual(mockUsedCodesManager.LastChallenge, 42uL);
Assert.AreEqual(mockUsedCodesManager.LastCode, code);
}
[Test]
public void CreateKey() {
var authenticator = new CounterAuthenticator(usedCodeManager: mockUsedCodesManager);
var secret = Authenticator.GenerateKey();
var code = authenticator.GetCode(secret, 0uL);
Assert.IsTrue(authenticator.CheckCode(secret, code, 0uL), "Generated Code doesn't verify");
}
// Test Values from http://www.ietf.org/rfc/rfc4226.txt - Appendix D
[TestCase("12345678901234567890", 0uL, "755224")]
[TestCase("12345678901234567890", 1uL, "287082")]
[TestCase("12345678901234567890", 2uL, "359152")]
[TestCase("12345678901234567890", 3uL, "969429")]
[TestCase("12345678901234567890", 4uL, "338314")]
[TestCase("12345678901234567890", 5uL, "254676")]
[TestCase("12345678901234567890", 6uL, "287922")]
[TestCase("12345678901234567890", 7uL, "162583")]
[TestCase("12345678901234567890", 8uL, "399871")]
[TestCase("12345678901234567890", 9uL, "520489")]
public void VerifyKeys(string secret, ulong counter, string code) {
var authenticator = new CounterAuthenticator(usedCodeManager: mockUsedCodesManager);
var base32Secret = Base32Encoding.ToString(Encoding.ASCII.GetBytes(secret));
Assert.IsTrue(authenticator.CheckCode(base32Secret, code, counter));
}
[Test]
public void VerifyUsedCounter() {
var authenticator = new CounterAuthenticator(usedCodeManager: mockUsedCodesManager);
// Test Values from http://www.ietf.org/rfc/rfc4226.txt - Appendix D
var base32Secret = Base32Encoding.ToString(Encoding.ASCII.GetBytes("12345678901234567890"));
ulong usedCounter;
Assert.True(authenticator.CheckCode(base32Secret, "520489", 0uL, out usedCounter));
Assert.AreEqual(usedCounter, 9uL);
}
}
}
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