public void TestRegionCacheWithExpectedResult()
{
// arrange
var regionDao = MockRepository.GenerateMock<IRegionDao>();
try
{
// Create some mock region objects
Region region1 = new Region
{
Name = "UK",
Id = 1,
SupportEmail = "*****@*****.**",
SupportNumber = "+4424778845214"
};
Region region2 = new Region
{
Name = "ZA",
Id = 2,
SupportEmail = "*****@*****.**",
SupportNumber = "+4424778845214"
};
List<Region> regionList = new List<Region>();
regionList.Add(region1);
regionList.Add(region2);
regionDao.Stub(x => x.GetAll()).Return(regionList);
regionDao.Stub(x => x.GetByKey(2)).Return(null);
// Make sure the cache doesn't cheat and get the value from the db
regionDao.Expect(x => x.GetByKey(2)).Repeat.Never();
Cache.Region.RegionDao = regionDao;
// act
Cache.Region.Invalidate();
Cache.Region.GetValue(2);
// assert
regionDao.VerifyAllExpectations();
}
finally
{
// Make sure this is reset for future tests
Cache.Region.RegionDao = new RegionDao();
}
}
/// <summary>
/// Converts Region to RegionDto
/// </summary>
/// <param name="region">Region to convert</param>
/// <returns>RegionDto</returns>
private static RegionDto ConvertRegionToDto(Region region)
{
return new RegionDto
{
Id = region.Id,
Description = region.Name,
SupportEmail = region.SupportEmail,
SupportNumber = region.SupportNumber
};
}
public void TestInvalidRequestToRegionCacheThrowsException()
{
// arrange
var regionDao = MockRepository.GenerateStub<IRegionDao>();
try
{
// Create some mock region objects
Region region1 = new Region
{
Name = "UK",
Id = 1,
SupportEmail = "*****@*****.**",
SupportNumber = "+4424778845214"
};
Region region2 = new Region
{
Name = "ZA",
Id = 2,
SupportEmail = "*****@*****.**",
SupportNumber = "+4424778845214"
};
List<Region> regionList = new List<Region>();
regionList.Add(region1);
regionList.Add(region2);
regionDao.Stub(x => x.GetAll()).Return(regionList);
regionDao.Stub(x => x.GetByKey(3)).Return(null);
// act
Cache.Region.RegionDao = regionDao;
Cache.Region.Invalidate();
Cache.Region.GetValue(3);
// assert
// Exception should be thrown above
}
finally
{
// Make sure this is reset for future tests
Cache.Region.RegionDao = new RegionDao();
}
}
public void TestVolatilityOfTheCacheWithExpectedResult()
{
// arrange
var regionDao = MockRepository.GenerateMock<IRegionDao>();
Cache.Region.RegionDao = regionDao;
try
{
// Create some mock region objects
Region region1Old = new Region
{
Name = "UK",
Id = 1,
SupportEmail = "*****@*****.**",
SupportNumber = "+4424778845214"
};
Region region1New = new Region
{
Name = "UK",
Id = 1,
SupportEmail = "*****@*****.**",
SupportNumber = "+4424778845214"
};
Region region2 = new Region
{
Name = "ZA",
Id = 2,
SupportEmail = "*****@*****.**",
SupportNumber = "+4424778845214"
};
// Outdated data
List<Region> regionListOld = new List<Region>();
regionListOld.Add(region1Old);
regionListOld.Add(region2);
// New data
List<Region> regionListNew = new List<Region>();
regionListNew.Add(region1New);
regionListNew.Add(region2);
// Set expectations on the mock
regionDao.Stub(x => x.GetAll()).Return(regionListOld);
// Make sure the cache didn't cheat and get the value from the database
regionDao.Expect(x => x.GetByKey(Arg<int>.Is.Anything)).Repeat.Never();
// Declare some thread helpers
bool internalThreadInvalidatedCacheComplete = false;
// act
// Invalidate cache on seperate thread and then on this one and check values each time
new Thread(() =>
{
// Do the invalidate
Cache.Region.Invalidate();
internalThreadInvalidatedCacheComplete = true;
}).Start();
// Wait for the thread to finish
while (!internalThreadInvalidatedCacheComplete)
{
Thread.Sleep(100);
}
Cache.Region.TryGetValue(1);
// assert
regionDao.VerifyAllExpectations();
}
finally
{
// Make sure this is reset for future tests
Cache.Region.RegionDao = new RegionDao();
}
}
public void TestInvalidationWithExpectedResult()
{
// arrange
var regionDao = MockRepository.GenerateStub<IRegionDao>();
try
{
// Create some mock region objects
Region region1Old = new Region
{
Name = "UK",
Id = 1,
SupportEmail = "*****@*****.**",
SupportNumber = "+4424778845214"
};
Region region1New = new Region
{
Name = "UK",
Id = 1,
SupportEmail = "*****@*****.**",
SupportNumber = "+4424778845214"
};
Region region2 = new Region
{
Name = "ZA",
Id = 2,
SupportEmail = "*****@*****.**",
SupportNumber = "+4424778845214"
};
// Outdated data
List<Region> regionListOld = new List<Region>();
regionListOld.Add(region1Old);
regionListOld.Add(region2);
// New data
List<Region> regionListNew = new List<Region>();
regionListNew.Add(region1New);
regionListNew.Add(region2);
regionDao.Stub(x => x.GetAll()).Return(regionListOld).Repeat.Once();
regionDao.Stub(x => x.GetAll()).Return(regionListNew).Repeat.Once();
Cache.Region.RegionDao = regionDao;
// act
Cache.Region.Invalidate();
// assert
Assert.AreEqual(region1Old.SupportEmail, Cache.Region.GetValue(1).SupportEmail, "Check that the initial cache value was correctly loaded");
// act again
Cache.Region.Invalidate();
// assert
Assert.AreEqual(region1New.SupportEmail, Cache.Region.GetValue(1).SupportEmail, "Check thay the updated cache value has been updated after invalidation");
}
finally
{
// Make sure this is reset for future tests
Cache.Region.RegionDao = new RegionDao();
}
}
public void TestTryInvalidRequestToRegionCacheWithExpectedResult()
{
// arrange
var regionDao = MockRepository.GenerateMock<IRegionDao>();
try
{
// Create some mock region objects
Region region1 = new Region
{
Name = "UK",
Id = 1,
SupportEmail = "*****@*****.**",
SupportNumber = "+4424778845214"
};
Region region2 = new Region
{
Name = "ZA",
Id = 2,
SupportEmail = "*****@*****.**",
SupportNumber = "+4424778845214"
};
List<Region> regionList = new List<Region>();
regionList.Add(region1);
regionList.Add(region2);
regionDao.Stub(x => x.GetAll()).Return(regionList);
// Confirm that the cache attempts to resolve the missing entry from the database
regionDao.Expect(x => x.GetByKey(3)).Return(null);
// act
Cache.Region.RegionDao = regionDao;
Cache.Region.Invalidate();
// Try to access a value not in the cache
Cache.Region.TryGetValue(3);
// assert
regionDao.VerifyAllExpectations();
}
finally
{
// Make sure this is reset for future tests
Cache.Region.RegionDao = new RegionDao();
}
}
