Retire wipe_draft! and find_or_create_draft from production code

Both had already lost their reason to exist as production API:
wipe_draft!'s one remaining callsite (nodes#show) was removed two
sessions ago, and find_or_create_draft had zero production callers
left at all -- confirmed by a fresh grep, not assumed -- every one of
its ~65 call sites was test setup, unrelated to what those tests
actually cover.

wipe_draft! is deleted outright, along with its two tests -- the
lock/draft/autosave cleanup it silently performed already has
explicit, always-visible manual equivalents (Unlock, Discard
Autosave, Destroy Draft), so nothing real is lost.

find_or_create_draft moves to test_helper.rb as a plain method on
ActiveSupport::TestCase, alongside the create_node_with_draft/
create_node_with_published_page helpers already living there --
extending the framework's own designated test-extension point
rather than reopening the Node model from test code. Its three
tests of real dispatch behavior (idempotency on repeat calls, and
raising when a second user contends for the lock) are kept, since
~65 other tests depend on this helper actually working correctly;
only the call syntax changed, from node.find_or_create_draft(user)
to find_or_create_draft(node, user).

1 files changed, 8 insertions, 8 deletions

diff --git a/test/controllers/revisions_controller_test.rb b/test/controllers/revisions_controller_test.rb
index e5726f7..96c6d6c 100644
--- a/test/controllers/revisions_controller_test.rb
+++ b/test/controllers/revisions_controller_test.rb
@@ -10,7 +10,7 @@ class RevisionsControllerTest < ActionController::TestCase
     draft = @node.draft
     draft.body = "first"
     @node.publish_draft!
-    @node.find_or_create_draft @user
+    find_or_create_draft(@node, @user)
     draft = @node.draft
     draft.update(:body => "second")
     @node.publish_draft!
@@ -103,7 +103,7 @@ class RevisionsControllerTest < ActionController::TestCase
 
   test "diffing head against draft by name" do
     login_as :quentin
-    @node.find_or_create_draft(@user)
+    find_or_create_draft(@node, @user)
     @node.draft.update(:body => "draft body")
 
     post(:diff, params: { :node_id => @node.id, :start_revision => "head", :end_revision => "draft" })
@@ -119,7 +119,7 @@ class RevisionsControllerTest < ActionController::TestCase
 
   test "diffing by name shows a clear comparison label instead of a misleading revision picker" do
     login_as :quentin
-    @node.find_or_create_draft(@user)
+    find_or_create_draft(@node, @user)
 
     post(:diff, params: { :node_id => @node.id, :start_revision => "head", :end_revision => "draft" })
     assert_response :success
@@ -130,7 +130,7 @@ class RevisionsControllerTest < ActionController::TestCase
 
   test "pair-switcher buttons carry their params as real hidden fields, not a query string" do
     login_as :quentin
-    @node.find_or_create_draft(@user)
+    find_or_create_draft(@node, @user)
     @node.lock_for_editing!(@user)
     @node.autosave!({ :body => "unsaved" }, @user)
 
@@ -142,7 +142,7 @@ class RevisionsControllerTest < ActionController::TestCase
 
   test "the view toggle is available even when comparing named layers" do
     login_as :quentin
-    @node.find_or_create_draft(@user)
+    find_or_create_draft(@node, @user)
 
     post(:diff, params: { :node_id => @node.id, :start_revision => "head", :end_revision => "draft" })
     assert_response :success
@@ -151,7 +151,7 @@ class RevisionsControllerTest < ActionController::TestCase
 
   test "diffing two revisions also shows tag, template, and asset changes" do
     login_as :quentin
-    @node.find_or_create_draft(@user)
+    find_or_create_draft(@node, @user)
     @node.draft.tag_list = "update"
     @node.draft.save!
 
@@ -175,7 +175,7 @@ class RevisionsControllerTest < ActionController::TestCase
     node.draft.save!
     node.publish_draft!
 
-    node.find_or_create_draft(@user)
+    find_or_create_draft(node, @user)
     Globalize.with_locale(:en) { node.draft.update!(:title => "Changed in English only") }
     node.draft.save!
 
@@ -191,7 +191,7 @@ class RevisionsControllerTest < ActionController::TestCase
     node.draft.save!
     node.publish_draft!
 
-    node.find_or_create_draft(@user)
+    find_or_create_draft(node, @user)
     Globalize.with_locale(:en) { node.draft.update!(:title => "English changed") }
     node.draft.save!