# File lib/minitest/unit.rb, line 106 def assert_kind_of cls, obj, msg = nil # TODO: merge with instance_of msg = message(msg) { "Expected #{mu_pp(obj)} to be a kind of #{cls}, not #{obj.class}" } flip = (Module === obj) && ! (Module === cls) # HACK for specs obj, cls = cls, obj if flip assert obj.kind_of?(cls), msg end