Enterprise Library Test Guide - Willy .Net

Using the Test Cases 255
Verification
Running the test case again after applying the preceding code verified that no scavenging
took place when the number of items to scavenge was set to zero.
Testing the Security Application Block
The test case checked to see that the Security Application Block’s secure cache did not
generate valid tokens for an invalid identity, principal, or profile. Instead, the cache
should throw an exception.
Test Case
The test case used the SecurityCacheFactory to create an in-memory cache store. It
passed null values to the SaveIdentity, SavePrincipal, and SaveProfile methods. The
following code shows the test case for the SaveProfile method.
[TestMethod]
[ExpectedException(typeof(ArgumentNullException))]
public void InMemorySaveWithNullProfileTestFixture()
{
ISecurityCacheProvider securityCache = SecurityCacheFactory.GetSecurityCachePro
vider("CacheProvider");
IToken token = securityCache.SaveProfile(null);
if (token != null)
{
Assert.Fail();
}
}
Problem
The test case failed because the cache issued a valid token for an invalid value. The
problem was that the CachingStoreProvider class did not validate the input values.
The following is the code that caused the problem.
public override IToken SaveProfile(object profile)
{
GuidToken guidToken = new GuidToken();
SaveProfile(profile, guidToken);
return guidToken;
}