So it operates completely on memory (RAM) instead of storage devices (SSD/HDD). Redis, on the other hand, focuses a lot on latency and the fast retrieval and storage of data. Var value = await _connection.GetDatabase().StringGetAsync(key, CommandFlags.PreferReplica) Traditional databases keep part of the database (usually the 'hot' or often-accessed indices) in memory for faster access, and the rest of the database on disk. _connection = connectionProvider.GetConnection(_config.FullAddress) IElastiCacheConnectionProvider connectionProvider) Private readonly IConnectionMultiplexer _connection = null Private readonly ElastiCacheConfig _config Public class ElastiCacheService : IElastiCacheService Task SetAsync(string key, string value, TimeSpan expiry) In the code below my cache service can be tested and only the connection provider class needs to be excluded from code coverage. The benefit of this approach is that the connection provider is the only code not tested (basically a single line of someone else's code) and your cache service can be tested by mocking the injected interfaces as normal. The connection provider class can simply be injected into your cache service. I have solved this problem by using a connection provider class to create the instance of the ConnectionMultiplexer. Ultimately I want to control whether that property is true or false in my tests, so is there a correct way to mock up something like this? _mockCache.Setup(cache => cache.Multiplexer).Returns(mockMultiplexer.Object) MockMultiplexer.Setup(c => c.IsConnected).Returns(false) I have also tried mocking the multiplexer class itself, and providing that to my mocked cache, but I run into the fact the multiplexer class is sealed: _mockCache = new Mock() However, while that code compiles just fine, I get this error when running the test: _mockCache.Setup(cache => ).Returns(false) So in my tests I want to mock up this behavior with something like this: _mockCache = new Mock() The key line in there is _ where I'm checking to make sure I have a valid connection before using the cache. _logger.Debug("Not using the cache because the connection is not available") A specific example is in my calling code I'm doing something like this: var cachable = command as IRedisCacheable
#Idatabase redis how to
I am working to mock up behaviors related to the StackExchange.Redis library, but can't figure out how to properly mock the sealed classes it uses.
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