public void GetOrCreateValue_AfterTokenWasInvalidated_RefreshesRevision_ReturnsValue()
{
var cache = new Cache <object, string>();
var decorator = new InvalidationTokenBasedCacheDecorator <object, string> (cache, InvalidationToken.Create());
var key = new object();
cache.Add(key, "Value1");
decorator.InvalidationToken.Invalidate();
var valueOnFirstCall = decorator.GetOrCreateValue(key, o => "Value2");
Assert.That(valueOnFirstCall, Is.EqualTo("Value2"));
var valueOnSecondCall = decorator.GetOrCreateValue(key, o => { throw new InvalidOperationException(); });
Assert.That(valueOnSecondCall, Is.EqualTo("Value2"));
}
public void GetOrCreateValue_WithValueInCache_ReturnsValue()
{
var cache = new Cache <object, string>();
var decorator = new InvalidationTokenBasedCacheDecorator <object, string> (cache, InvalidationToken.Create());
var key = new object();
cache.Add(key, "Value");
var value = decorator.GetOrCreateValue(key, o => { throw new InvalidOperationException(); });
Assert.That(value, Is.EqualTo("Value"));
}
public void GetOrCreateValue_WithValueNotInCache_CreatedValue_ReturnsValue()
{
var cache = new Cache <object, string>();
var decorator = new InvalidationTokenBasedCacheDecorator <object, string> (cache, InvalidationToken.Create());
var key = new object();
var value = decorator.GetOrCreateValue(key, o => "Value");
Assert.That(value, Is.EqualTo("Value"));
string cachedValue;
cache.TryGetValue(key, out cachedValue);
Assert.That(cachedValue, Is.EqualTo("Value"));
}
public void GetOrCreateValue_AfterTokenWasInvalidated_CreatesNewValue_ReturnsValue()
{
var cache = new Cache <object, string>();
var decorator = new InvalidationTokenBasedCacheDecorator <object, string> (cache, InvalidationToken.Create());
var key = new object();
cache.Add(key, "Value1");
decorator.InvalidationToken.Invalidate();
var value = decorator.GetOrCreateValue(key, o => "Value2");
Assert.That(value, Is.EqualTo("Value2"));
string cachedValue;
cache.TryGetValue(key, out cachedValue);
Assert.That(cachedValue, Is.EqualTo("Value2"));
}
