Just to pick at a nit with you, it's a little meaningless to say "100% test coverage", without specifying whether you're talking about line coverage, branch cov

Just to pick at a nit with you, it's a little meaningless to say "100% test coverage", without specifying whether you're talking about line coverage, branch coverage, path coverage... This is especially true for one-liner modules in js, where any test at all might let you claim 100% statement coverage, without accounting for branches or loops within method calls.