Merge pull request #1546 from marler8997/dontLinkConflicts

Author: MikeMcQuaid

lib/tests/formulae.rb

@@ -158,6 +158,7 @@ def setup_formulae_deps_instances(formula, formula_name, args:)
           link_formula = Formulary.factory(name)
           next if link_formula.keg_only?
           next if link_formula.linked_keg.exist?
+          next if unlink_formulae.include?(name)
 
           test "brew", "link", name
         end