public void CloudObjectsLiveSource()
{
var client = GetClient();
const string objectName = "object1";
var local = new SampleObject()
{
FirstName = "jinga",
LastName = "zamooga"
};
client.DeleteAsync(objectName).Wait();
client.SaveAsync(objectName, local).Wait();
var cache = new SampleDbCache(() => LocalDb.GetConnection(dbName));
// assume table hasn't been created yet
DropCacheTable(cache);
// first fetch is always live
var fetched = cache.GetAsync(objectName,
async() =>
{
var cloudObj = await client.GetAsync <SampleObject>(objectName);
return(cloudObj.Object);
}, TimeSpan.FromSeconds(2)).Result;
// simulate a delay past the 2-second max age allowed
Task.Delay(3000).Wait();
// it's the second fetch we care about
fetched = cache.GetAsync(objectName,
async() =>
{
var cloudObj = await client.GetAsync <SampleObject>(objectName);
return(cloudObj.Object);
}, TimeSpan.FromSeconds(2)).Result;
Assert.IsTrue(fetched.FirstName.Equals(local.FirstName));
Assert.IsTrue(fetched.LastName.Equals(local.LastName));
Assert.IsTrue(cache.Source == ObjectSource.Live);
}
public void CloudObjectsCacheSource()
{
var client = GetClient();
const string objectName = "object2";
var local = new SampleObject()
{
FirstName = "jinga",
LastName = "zamooga"
};
client.DeleteAsync(objectName).Wait();
client.SaveAsync(objectName, local).Wait();
var cache = new SampleDbCache(() => LocalDb.GetConnection(dbName));
// assume table hasn't been created yet
DropCacheTable(cache);
// first fetch will be live because it's a new object
var fetched = cache.GetAsync(objectName,
async() =>
{
var cloudObj = await client.GetAsync <SampleObject>(objectName);
return(cloudObj.Object);
}, TimeSpan.FromMinutes(5)).Result;
// second fetch will be cached because it's within 5 minute window
fetched = cache.GetAsync(objectName,
async() =>
{
var cloudObj = await client.GetAsync <SampleObject>(objectName);
return(cloudObj.Object);
}, TimeSpan.FromMinutes(5)).Result;
Assert.IsTrue(fetched.FirstName.Equals(local.FirstName));
Assert.IsTrue(fetched.LastName.Equals(local.LastName));
Assert.IsTrue(cache.Source == ObjectSource.Cache);
}
public void CloudObjectsFixedDateExpiration()
{
var client = GetClient();
var cache = new SampleDbCache(() => LocalDb.GetConnection(dbName));
var sample = new SampleObject()
{
FirstName = "Great",
LastName = "Mazinga"
};
client.DeleteAsync("object3").Wait();
client.SaveAsync("object3", sample).Wait();
// should always get live because it's always later than an hour ago
var fetched = cache.GetAsync("object3",
async() =>
{
var result = await client.GetAsync <SampleObject>("object3");
return(result.Object);
},
DateTime.UtcNow.Subtract(TimeSpan.FromHours(1))).Result;
Assert.IsTrue(cache.Source == ObjectSource.Live);
fetched = cache.GetAsync("object3",
async() =>
{
var result = await client.GetAsync <SampleObject>("object3");
return(result.Object);
},
DateTime.UtcNow.Add(TimeSpan.FromHours(1))).Result;
// should always get cache because it's always earlier than an hour from now
Assert.IsTrue(cache.Source == ObjectSource.Cache);
}