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diff --git a/vendor/rails/activerecord/test/cases/multiple_db_test.rb b/vendor/rails/activerecord/test/cases/multiple_db_test.rb
new file mode 100644
index 0000000..7c3e0f2
--- /dev/null
+++ b/vendor/rails/activerecord/test/cases/multiple_db_test.rb
@@ -0,0 +1,85 @@
+require "cases/helper"
+require 'models/entrant'
+
+# So we can test whether Course.connection survives a reload.
+require_dependency 'models/course'
+
+class MultipleDbTest < ActiveRecord::TestCase
+  self.use_transactional_fixtures = false
+
+  def setup
+    @courses  = create_fixtures("courses") { Course.retrieve_connection }
+    @entrants = create_fixtures("entrants")
+  end
+
+  def test_connected
+    assert_not_nil Entrant.connection
+    assert_not_nil Course.connection
+  end
+
+  def test_proper_connection
+    assert_not_equal(Entrant.connection, Course.connection)
+    assert_equal(Entrant.connection, Entrant.retrieve_connection)
+    assert_equal(Course.connection, Course.retrieve_connection)
+    assert_equal(ActiveRecord::Base.connection, Entrant.connection)
+  end
+
+  def test_find
+    c1 = Course.find(1)
+    assert_equal "Ruby Development", c1.name
+    c2 = Course.find(2)
+    assert_equal "Java Development", c2.name
+    e1 = Entrant.find(1)
+    assert_equal "Ruby Developer", e1.name
+    e2 = Entrant.find(2)
+    assert_equal "Ruby Guru", e2.name
+    e3 = Entrant.find(3)
+    assert_equal "Java Lover", e3.name
+  end
+
+  def test_associations
+    c1 = Course.find(1)
+    assert_equal 2, c1.entrants.count
+    e1 = Entrant.find(1)
+    assert_equal e1.course.id, c1.id
+    c2 = Course.find(2)
+    assert_equal 1, c2.entrants.count
+    e3 = Entrant.find(3)
+    assert_equal e3.course.id, c2.id
+  end
+
+  def test_course_connection_should_survive_dependency_reload
+    assert Course.connection
+
+    ActiveSupport::Dependencies.clear
+    Object.send(:remove_const, :Course)
+    require_dependency 'models/course'
+
+    assert Course.connection
+  end
+
+  def test_transactions_across_databases
+    c1 = Course.find(1)
+    e1 = Entrant.find(1)
+
+    begin
+      Course.transaction do
+        Entrant.transaction do
+          c1.name = "Typo"
+          e1.name = "Typo"
+          c1.save
+          e1.save
+          raise "No I messed up."
+        end
+      end
+    rescue
+      # Yup caught it
+    end
+
+    assert_equal "Typo", c1.name
+    assert_equal "Typo", e1.name
+
+    assert_equal "Ruby Development", Course.find(1).name
+    assert_equal "Ruby Developer", Entrant.find(1).name
+  end
+end