1..13
# ->getValue()
ok 1 - ->getValue() returns the embedded value
# ->__set() ->__get()
ok 2 - ->__get() returns the object parameter
ok 3 - ->__set() sets the object parameter
# ->__call()
ok 4 - ->__call() invokes the embedded method
# ->__isset() ->__unset()
ok 5 - ->__isset() returns true if the property is not null
ok 6 - ->__isset() returns false if the property is null
ok 7 - ->__isset() returns false if the property does not exist
ok 8 - ->__unset() unsets the embedded property
# Iterator
ok 9 - Iterator implementation imitates an array
# ArrayAccess
ok 10 - ArrayAccess implementation returns a value from the embedded array
ok 11 - ArrayAccess implementation sets a value on the embedded array
ok 12 - ArrayAccess checks if a value is set on the embedded array
ok 13 - ArrayAccess unsets a value on the embedded array
# Looks like everything went fine.