public async Task WhenNonceIsRegistered_ReturnsNonce_EvenIfItExpired()
{
var nonce = new Nonce(_keyId, _value, DateTimeOffset.Now.AddMinutes(-1));
var cacheKey = "Nonce_c1_abc123";
var cacheEntry = _cache.CreateEntry(cacheKey);
cacheEntry.Value = nonce;
var actual = await _sut.Get(_keyId, _value);
actual.Should().Be(nonce);
}
/// <summary>
/// Registers usage of the specified <see cref="Nonce" /> value.
/// </summary>
/// <param name="nonce">The <see cref="Nonce" /> that is received from a client.</param>
public Task Register(Nonce nonce)
{
if (nonce == null)
{
throw new ArgumentNullException(nameof(nonce));
}
var cacheKey = CacheKeyCreator(nonce.ClientId, nonce.Value);
_cache.Set(cacheKey, nonce, nonce.Expiration);
return(Task.CompletedTask);
}
public async Task WhenNonceIsInCache_AndItIsNotNull_DoesNotCallDecoratedService()
{
var cachedNonce = new Nonce("c1", "abc123", _now.AddMinutes(1));
var cacheKey = CacheKeyFactory(cachedNonce);
var cacheEntry = _cache.CreateEntry(cacheKey);
cacheEntry.Value = cachedNonce;
await _sut.Get(cachedNonce.ClientId, cachedNonce.Value);
A.CallTo(() => _decorated.Get(A <KeyId> ._, A <string> ._))
.MustNotHaveHappened();
}
public async Task WhenNonceIsAlreadyRegistered_Overwrites()
{
var cacheKey = "Nonce_c1_abc123";
var cacheEntry = _cache.CreateEntry(cacheKey);
cacheEntry.Value = _nonce;
var newNonce = new Nonce(_nonce.ClientId, _nonce.Value, _now.AddMinutes(10));
await _sut.Register(newNonce);
_cache.TryGetValue(_cacheKey, out var actualNonce).Should().BeTrue();
actualNonce.Should().Be(newNonce);
}
public Task Register(Nonce nonce)
{
if (nonce == null)
{
throw new ArgumentNullException(nameof(nonce));
}
var cacheKey = CacheKeyFactory(nonce.ClientId, nonce.Value);
_cache.Set(cacheKey, nonce, nonce.Expiration);
return(_decorated.Register(nonce));
}
public async Task AddsToCacheWithExpectedExpiration()
{
var nonce = new Nonce(new KeyId("c1"), "abc123", _now.AddSeconds(30));
var cacheKey = "CacheEntry_Nonce_c1_abc123";
_cache.TryGetValue(cacheKey, out _).Should().BeFalse();
await _sut.Register(nonce);
_cache.TryGetEntry(cacheKey, out var actualEntry).Should().BeTrue();
actualEntry.As <ICacheEntry>().Value.Should().Be(nonce);
actualEntry.As <ICacheEntry>().AbsoluteExpiration.Should().Be(nonce.Expiration);
}
public async Task WhenNonceIsNotCached_AndNonceIsResolved_ReturnsResolvedNonce()
{
var cacheKey = CacheKeyFactory("c1", "abc123");
_cache.TryGetValue(cacheKey, out _).Should().BeFalse();
var resolvedNonce = new Nonce("c1", "abc123", _now.AddMinutes(2));
A.CallTo(() => _decorated.Get("c1", "abc123"))
.Returns(resolvedNonce);
var actual = await _sut.Get("c1", "abc123");
actual.Should().Be(resolvedNonce);
}
public async Task WhenNonceIsNotCached_AndItIsResolved_AddsToCacheWithExpectedExpiration()
{
var cacheKey = CacheKeyFactory("c1", "abc123");
_cache.TryGetValue(cacheKey, out _).Should().BeFalse();
var resolvedNonce = new Nonce("c1", "abc123", _now.AddMinutes(2));
A.CallTo(() => _decorated.Get("c1", "abc123"))
.Returns(resolvedNonce);
await _sut.Get("c1", "abc123");
_cache.TryGetEntry(cacheKey, out var actualEntry).Should().BeTrue();
actualEntry.As <ICacheEntry>().AbsoluteExpiration.Should().Be(resolvedNonce.Expiration);
}
public async Task WhenNonceIsInCache_ButItIsNull_AndNonceIsResolved_ReturnsResolvedNonce()
{
var cacheKey = CacheKeyFactory("c1", "abc123");
var cacheEntry = _cache.CreateEntry(cacheKey);
cacheEntry.Value = null;
var resolvedNonce = new Nonce("c1", "abc123", _now.AddMinutes(2));
A.CallTo(() => _decorated.Get("c1", "abc123"))
.Returns(resolvedNonce);
var actual = await _sut.Get("c1", "abc123");
actual.Should().Be(resolvedNonce);
}
private static string CacheKeyFactory(Nonce nonce)
{
return($"CacheEntry_Nonce_{nonce.ClientId}_{nonce.Value}");
}
public Register()
{
_now = new DateTimeOffset(2020, 3, 20, 12, 12, 14, TimeSpan.Zero);
_cacheKey = "Nonce_c1_abc123";
_nonce = new Nonce(new KeyId("c1"), "abc123", _now.AddMinutes(1));
}