CharSequenceContainsChecker(times: Int, correctCall: String, wrongCall: (Int) -> String)
Represents the base class for CharSequenceContains.Checker.
It does not do much more than specifying that its super class is ContainsChecker and sub-classes have to implement CharSequenceContains.Checker.
times - The number which the check uses to compare against the actual number of times an expected object is
found in the input of the search.
correctCall - The function which should be used instead of wrongCall when times equals to zero.
wrongCall - The function call which was used and should not be used if times equals to zero.
IllegalArgumentException - In case times is smaller than 1.