[#4184] Load the YAML inside of #migrate.

lib/redmine_contracts/budget_plugin_migration.rb

@@ -33,9 +33,10 @@ module RedmineContracts
     def self.migrate_contracts
       ::Engines.plugins['redmine_contracts'].migrate
     end
-    
+
+    # * old_data - YAML string of deliverables to migrate
     def self.migrate(old_data)
-      @@data = old_data
+      @@data = YAML.load(old_data)
 
       ActiveRecord::Base.transaction do
         @@data.each do |old_deliverable|

test/integration/budget_plugin_migration_test.rb

@@ -6,7 +6,7 @@ class BudgetPluginMigrationTest < ActionController::IntegrationTest
   end
 
   def load_test_fixture
-    YAML.load(File.read(File.expand_path(File.dirname(__FILE__)) + "/../fixtures/budget_plugin_migration/budget.yml"))
+    File.read(File.expand_path(File.dirname(__FILE__)) + "/../fixtures/budget_plugin_migration/budget.yml")
   end
 
   context "migrate" do