1 files changed, 79 insertions, 1 deletions
diff --git a/railties/test/application/rake/multi_dbs_test.rb b/railties/test/application/rake/multi_dbs_test.rb
index ef99365e75..31ea2246a9 100644
--- a/railties/test/application/rake/multi_dbs_test.rb
+++ b/railties/test/application/rake/multi_dbs_test.rb
@@ -24,7 +24,6 @@ module ApplicationTests
           assert_no_match(/already exists/, output)
           assert File.exist?(expected_database)
 
-
           output = rails("db:drop")
           assert_match(/Dropped database/, output)
           assert_match_namespace(namespace, output)
@@ -137,6 +136,51 @@ module ApplicationTests
         end
       end
 
+      def db_up_and_down(version, namespace = nil)
+        Dir.chdir(app_path) do
+          generate_models_for_animals
+          rails("db:migrate")
+
+          if namespace
+            down_output = rails("db:migrate:down:#{namespace}", "VERSION=#{version}")
+            up_output = rails("db:migrate:up:#{namespace}", "VERSION=#{version}")
+          else
+            assert_raises RuntimeError, /You're using a multiple database application/ do
+              down_output = rails("db:migrate:down", "VERSION=#{version}")
+            end
+
+            assert_raises RuntimeError, /You're using a multiple database application/ do
+              up_output = rails("db:migrate:up", "VERSION=#{version}")
+            end
+          end
+
+          case namespace
+          when "primary"
+            assert_match(/OneMigration: reverting/, down_output)
+            assert_match(/OneMigration: migrated/, up_output)
+          when nil
+          else
+            assert_match(/TwoMigration: reverting/, down_output)
+            assert_match(/TwoMigration: migrated/, up_output)
+          end
+        end
+      end
+
+      def db_prepare
+        Dir.chdir(app_path) do
+          generate_models_for_animals
+          output = rails("db:prepare")
+
+          ActiveRecord::Base.configurations.configs_for(env_name: Rails.env).each do |db_config|
+            if db_config.spec_name == "primary"
+              assert_match(/CreateBooks: migrated/, output)
+            else
+              assert_match(/CreateDogs: migrated/, output)
+            end
+          end
+        end
+      end
+
       def write_models_for_animals
         # make a directory for the animals migration
         FileUtils.mkdir_p("#{app_path}/db/animals_migrate")
@@ -170,6 +214,7 @@ module ApplicationTests
         rails "generate", "model", "book", "title:string"
         rails "generate", "model", "dog", "name:string"
         write_models_for_animals
+        reload
       end
 
       test "db:create and db:drop works on all databases for env" do
@@ -203,6 +248,34 @@ module ApplicationTests
         end
       end
 
+      test "db:migrate:down and db:migrate:up without a namespace raises in a multi-db application" do
+        require "#{app_path}/config/environment"
+
+        app_file "db/migrate/01_one_migration.rb", <<-MIGRATION
+          class OneMigration < ActiveRecord::Migration::Current
+          end
+        MIGRATION
+
+        db_up_and_down "01"
+      end
+
+      test "db:migrate:down:namespace and db:migrate:up:namespace works" do
+        require "#{app_path}/config/environment"
+
+        app_file "db/migrate/01_one_migration.rb", <<-MIGRATION
+          class OneMigration < ActiveRecord::Migration::Current
+          end
+        MIGRATION
+
+        app_file "db/animals_migrate/02_two_migration.rb", <<-MIGRATION
+          class TwoMigration < ActiveRecord::Migration::Current
+          end
+        MIGRATION
+
+        db_up_and_down "01", "primary"
+        db_up_and_down "02", "animals"
+      end
+
       test "db:migrate:status works on all databases" do
         require "#{app_path}/config/environment"
         db_migrate_and_migrate_status
@@ -225,6 +298,11 @@ module ApplicationTests
         require "#{app_path}/config/environment"
         db_migrate_and_schema_cache_dump_and_schema_cache_clear
       end
+
+      test "db:prepare works on all databases" do
+        require "#{app_path}/config/environment"
+        db_prepare
+      end
     end
   end
 end