Merge pull request rails#41238 from samjewell/sj/fix-has_one-create_a…

…ssociated-test-names

Update test names to match their behaviour

activerecord/test/cases/associations/has_one_associations_test.rb

@@ -488,7 +488,7 @@ def test_attributes_are_being_set_when_initialized_from_has_one_association_with
     assert_equal new_account.firm_name, "Account"
   end
 
-  def test_creation_failure_without_dependent_option
+  def test_create_association_replaces_existing_without_dependent_option
     pirate = pirates(:blackbeard)
     orig_ship = pirate.ship
 
@@ -501,7 +501,7 @@ def test_creation_failure_without_dependent_option
     assert_not orig_ship.changed? # check it was saved
   end
 
-  def test_creation_failure_with_dependent_option
+  def test_create_association_replaces_existing_with_dependent_option
     pirate = pirates(:blackbeard).becomes(DestructivePirate)
     orig_ship = pirate.dependent_ship