rubocops: test whitelists.

Library/Homebrew/test/rubocops/conflicts_spec.rb

@@ -26,4 +26,6 @@ describe RuboCop::Cop::FormulaAudit::Conflicts do
       RUBY
     end
   end
+
+  include_examples "formulae exist", described_class::WHITELIST
 end

Library/Homebrew/test/rubocops/lines_spec.rb

@@ -860,4 +860,6 @@ describe RuboCop::Cop::FormulaAudit::Miscellaneous do
       RUBY
     end
   end
+
+  include_examples "formulae exist", described_class::MAKE_CHECK_WHITELIST
 end

Library/Homebrew/test/rubocops/urls_spec.rb

@@ -218,6 +218,8 @@ describe RuboCop::Cop::FormulaAudit::Urls do
       RUBY
     end
   end
+
+  include_examples "formulae exist", described_class::BINARY_BOOTSTRAP_FORMULA_URLS_WHITELIST
 end
 
 describe RuboCop::Cop::FormulaAudit::PyPiUrls do

Library/Homebrew/test/rubocops/uses_from_macos_spec.rb

@@ -16,4 +16,6 @@ describe RuboCop::Cop::FormulaAudit::UsesFromMacos do
       end
     RUBY
   end
+
+  include_examples "formulae exist", described_class::ALLOWED_USES_FROM_MACOS_DEPS
 end

Library/Homebrew/test/spec_helper.rb

@@ -52,6 +52,7 @@ require "test/support/helper/output_as_tty"
 
 require "test/support/helper/spec/shared_context/homebrew_cask" if OS.mac?
 require "test/support/helper/spec/shared_context/integration_test"
+require "test/support/helper/spec/shared_examples/formulae_exist"
 
 TEST_DIRECTORIES = [
   CoreTap.instance.path/"Formula",

Library/Homebrew/test/support/helper/spec/shared_examples/formulae_exist.rb

@@ -0,0 +1,10 @@
+# frozen_string_literal: true
+
+shared_examples "formulae exist" do |array|
+  array.each do |f|
+    it "#{f} formula exists" do
+      formula_path = Pathname("#{HOMEBREW_LIBRARY_PATH}/../Taps/homebrew/homebrew-core/Formula/#{f}.rb")
+      expect(formula_path.exist?).to be true
+    end
+  end
+end

Library/Homebrew/test/support/lib/config.rb

@@ -17,7 +17,7 @@ TEST_TMPDIR = ENV.fetch("HOMEBREW_TEST_TMPDIR") do |k|
 end.freeze
 
 # Paths pointing into the Homebrew code base that persist across test runs
-HOMEBREW_SHIMS_PATH = (HOMEBREW_LIBRARY_PATH.parent/"Homebrew/shims").freeze
+HOMEBREW_SHIMS_PATH = (HOMEBREW_LIBRARY_PATH/"shims").freeze
 
 require "extend/git_repository"