uninstall: test should_check_for_dependents?

Library/Homebrew/cmd/uninstall.rb

@@ -24,8 +24,7 @@ module Homebrew
       ARGV.kegs.group_by(&:rack)
     end
 
-    # --ignore-dependencies, to be consistent with install
-    if !ARGV.include?("--ignore-dependencies") && !ARGV.homebrew_developer?
+    if should_check_for_dependents?
       all_kegs = kegs_by_rack.values.flatten(1)
       return if check_for_dependents all_kegs
     end
@@ -75,6 +74,13 @@ module Homebrew
     end
   end
 
+  def should_check_for_dependents?
+    # --ignore-dependencies, to be consistent with install
+    return false if ARGV.include?("--ignore-dependencies")
+    return false if ARGV.homebrew_developer?
+    true
+  end
+
   def check_for_dependents(kegs)
     return false unless result = Keg.find_some_installed_dependents(kegs)
 

Library/Homebrew/test/test_uninstall.rb

@@ -1,4 +1,26 @@
 require "helper/integration_command_test_case"
+require "cmd/uninstall"
+
+class UninstallTests < Homebrew::TestCase
+  def test_check_for_testball_f2s_when_developer
+    refute_predicate Homebrew, :should_check_for_dependents?
+  end
+
+  def test_check_for_dependents_when_not_developer
+    run_as_not_developer do
+      assert_predicate Homebrew, :should_check_for_dependents?
+    end
+  end
+
+  def test_check_for_dependents_when_ignore_dependencies
+    ARGV << "--ignore-dependencies"
+    run_as_not_developer do
+      refute_predicate Homebrew, :should_check_for_dependents?
+    end
+  ensure
+    ARGV.delete("--ignore-dependencies")
+  end
+end
 
 class IntegrationCommandTestUninstall < IntegrationCommandTestCase
   def setup