rake:db:test:prepare falls back to original environment after execution.

2 files changed, 11 insertions, 3 deletions

diff --git a/activerecord/CHANGELOG.md b/activerecord/CHANGELOG.md
index c1b849ce68..b69f7d6090 100644
--- a/activerecord/CHANGELOG.md
+++ b/activerecord/CHANGELOG.md
@@ -35,5 +35,9 @@
 *   Abort a rake task when missing db/structure.sql like `db:schema:load` task.
 
     *kennyj*
+    
+*   rake:db:test:prepare falls back to original environment after execution.
+    
+    *Slava Markevich*
 
 Please check [4-0-stable](https://github.com/rails/rails/blob/4-0-stable/activerecord/CHANGELOG.md) for previous changes.
diff --git a/activerecord/lib/active_record/railties/databases.rake b/activerecord/lib/active_record/railties/databases.rake
index 92bef09ff5..434af3c5f8 100644
--- a/activerecord/lib/active_record/railties/databases.rake
+++ b/activerecord/lib/active_record/railties/databases.rake
@@ -319,9 +319,13 @@ db_namespace = namespace :db do
 
     # desc "Recreate the test database from an existent schema.rb file"
     task :load_schema => 'db:test:purge' do
-      ActiveRecord::Base.establish_connection(ActiveRecord::Base.configurations['test'])
-      ActiveRecord::Schema.verbose = false
-      db_namespace["schema:load"].invoke
+      begin
+        ActiveRecord::Base.establish_connection(ActiveRecord::Base.configurations['test'])
+        ActiveRecord::Schema.verbose = false
+        db_namespace["schema:load"].invoke
+      ensure
+        ActiveRecord::Base.establish_connection(ActiveRecord::Base.configurations[Rails.env])
+      end
     end
 
     # desc "Recreate the test database from an existent structure.sql file"