testConstructor()
testToStringNull()
testToStringNotNull()
testKeys()
testGetDate()
testGetDateException()
testGetCacheControlHeader()
testAll()
testReplace()
testGet()
testSetAssociativeArray()
testContains()
testCacheControlDirectiveAccessors()
testCacheControlDirectiveParsing()
testCacheControlDirectiveParsingQuotedZero()
testCacheControlDirectiveOverrideWithReplace()
testCacheControlClone()
testGetIterator()
testCount()
