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    If the boolean values are passed from external sources (meaning they aren't always validated), then combinatorial conditional coverage is often necessary. First make a table of the combinations. Then, for each entry, decide if that entry represents a meaningful use case. If not, there should be code somewhere (either software assertions or validation clause) to prevent that combination from being executed. It is important not to lump all parameters in a single combinatorial test: try to partition parameters into groups that interact with each other i.e. shares the same boolean expression. Commented Jul 7, 2012 at 4:57
  • How certain are you of the bolded terms? Your answer seems to be the only occurence of "Combinatorial Condition Coverage", and some resources say that "predicate coverage" and "conditional coverage" are the same thing. Commented Aug 18, 2016 at 12:52