Use one system call whenever possible, group rake and Dir.chdir calls

railties/test/application/initializers/frameworks_test.rb

@@ -196,9 +196,8 @@ def from_bar_helper
 
     test "use schema cache dump" do
       Dir.chdir(app_path) do
-        `rails generate model post title:string`
-        `bundle exec rake db:migrate`
-        `bundle exec rake db:schema:cache:dump`
+        `rails generate model post title:string;
+         bundle exec rake db:migrate db:schema:cache:dump`
       end
       require "#{app_path}/config/environment"
       ActiveRecord::Base.connection.drop_table("posts") # force drop posts table for test.
@@ -207,17 +206,13 @@ def from_bar_helper
 
     test "expire schema cache dump" do
       Dir.chdir(app_path) do
-        `rails generate model post title:string`
-        `bundle exec rake db:migrate`
-        `bundle exec rake db:schema:cache:dump`
-
-        `bundle exec rake db:rollback`
+        `rails generate model post title:string;
+         bundle exec rake db:migrate db:schema:cache:dump db:rollback`
       end
       silence_warnings {
         require "#{app_path}/config/environment"
         assert !ActiveRecord::Base.connection.schema_cache.tables["posts"]
       }
     end
-
   end
 end

railties/test/application/rake/migrations_test.rb

@@ -16,44 +16,45 @@ def teardown
       test 'running migrations with given scope' do
         Dir.chdir(app_path) do
           `rails generate model user username:string password:string`
-        end
-        app_file "db/migrate/01_a_migration.bukkits.rb", <<-MIGRATION
-          class AMigration < ActiveRecord::Migration
-          end
-        MIGRATION
 
-        output = Dir.chdir(app_path) { `rake db:migrate SCOPE=bukkits` }
-        assert_no_match(/create_table\(:users\)/, output)
-        assert_no_match(/CreateUsers/, output)
-        assert_no_match(/add_column\(:users, :email, :string\)/, output)
+          app_file "db/migrate/01_a_migration.bukkits.rb", <<-MIGRATION
+            class AMigration < ActiveRecord::Migration
+            end
+          MIGRATION
+
+          output = `rake db:migrate SCOPE=bukkits`
+          assert_no_match(/create_table\(:users\)/, output)
+          assert_no_match(/CreateUsers/, output)
+          assert_no_match(/add_column\(:users, :email, :string\)/, output)
 
-        assert_match(/AMigration: migrated/, output)
+          assert_match(/AMigration: migrated/, output)
 
-        output = Dir.chdir(app_path) { `rake db:migrate SCOPE=bukkits VERSION=0` }
-        assert_no_match(/drop_table\(:users\)/, output)
-        assert_no_match(/CreateUsers/, output)
-        assert_no_match(/remove_column\(:users, :email\)/, output)
+          output = `rake db:migrate SCOPE=bukkits VERSION=0`
+          assert_no_match(/drop_table\(:users\)/, output)
+          assert_no_match(/CreateUsers/, output)
+          assert_no_match(/remove_column\(:users, :email\)/, output)
 
-        assert_match(/AMigration: reverted/, output)
+          assert_match(/AMigration: reverted/, output)
+        end
       end
 
       test 'model and migration generator with change syntax' do
         Dir.chdir(app_path) do
-          `rails generate model user username:string password:string`
-          `rails generate migration add_email_to_users email:string`
+          `rails generate model user username:string password:string;
+           rails generate migration add_email_to_users email:string`
+
+           output = `rake db:migrate`
+           assert_match(/create_table\(:users\)/, output)
+           assert_match(/CreateUsers: migrated/, output)
+           assert_match(/add_column\(:users, :email, :string\)/, output)
+           assert_match(/AddEmailToUsers: migrated/, output)
+
+           output = `rake db:rollback STEP=2`
+           assert_match(/drop_table\("users"\)/, output)
+           assert_match(/CreateUsers: reverted/, output)
+           assert_match(/remove_column\("users", :email\)/, output)
+           assert_match(/AddEmailToUsers: reverted/, output)
         end
-
-        output = Dir.chdir(app_path){ `rake db:migrate` }
-        assert_match(/create_table\(:users\)/, output)
-        assert_match(/CreateUsers: migrated/, output)
-        assert_match(/add_column\(:users, :email, :string\)/, output)
-        assert_match(/AddEmailToUsers: migrated/, output)
-
-        output = Dir.chdir(app_path){ `rake db:rollback STEP=2` }
-        assert_match(/drop_table\("users"\)/, output)
-        assert_match(/CreateUsers: reverted/, output)
-        assert_match(/remove_column\("users", :email\)/, output)
-        assert_match(/AddEmailToUsers: reverted/, output)
       end
 
       test 'migration status when schema migrations table is not present' do
@@ -63,94 +64,94 @@ class AMigration < ActiveRecord::Migration
 
       test 'test migration status' do
         Dir.chdir(app_path) do
-          `rails generate model user username:string password:string`
-          `rails generate migration add_email_to_users email:string`
-        end
+          `rails generate model user username:string password:string;
+           rails generate migration add_email_to_users email:string;
+           rake db:migrate`
 
-        Dir.chdir(app_path) { `rake db:migrate` }
-        output = Dir.chdir(app_path) { `rake db:migrate:status` }
+          output = `rake db:migrate:status`
 
-        assert_match(/up\s+\d{14}\s+Create users/, output)
-        assert_match(/up\s+\d{14}\s+Add email to users/, output)
+          assert_match(/up\s+\d{14}\s+Create users/, output)
+          assert_match(/up\s+\d{14}\s+Add email to users/, output)
 
-        Dir.chdir(app_path) { `rake db:rollback STEP=1` }
-        output = Dir.chdir(app_path) { `rake db:migrate:status` }
+          `rake db:rollback STEP=1`
+          output = `rake db:migrate:status`
 
-        assert_match(/up\s+\d{14}\s+Create users/, output)
-        assert_match(/down\s+\d{14}\s+Add email to users/, output)
+          assert_match(/up\s+\d{14}\s+Create users/, output)
+          assert_match(/down\s+\d{14}\s+Add email to users/, output)
+        end
       end
 
       test 'migration status without timestamps' do
         add_to_config('config.active_record.timestamped_migrations = false')
 
         Dir.chdir(app_path) do
-          `rails generate model user username:string password:string`
-          `rails generate migration add_email_to_users email:string`
-        end
+          `rails generate model user username:string password:string;
+           rails generate migration add_email_to_users email:string;
+           rake db:migrate`
 
-        Dir.chdir(app_path) { `rake db:migrate` }
-        output = Dir.chdir(app_path) { `rake db:migrate:status` }
+          output = `rake db:migrate:status`
 
-        assert_match(/up\s+\d{3,}\s+Create users/, output)
-        assert_match(/up\s+\d{3,}\s+Add email to users/, output)
+          assert_match(/up\s+\d{3,}\s+Create users/, output)
+          assert_match(/up\s+\d{3,}\s+Add email to users/, output)
 
-        Dir.chdir(app_path) { `rake db:rollback STEP=1` }
-        output = Dir.chdir(app_path) { `rake db:migrate:status` }
+          `rake db:rollback STEP=1`
+          output = `rake db:migrate:status`
 
-        assert_match(/up\s+\d{3,}\s+Create users/, output)
-        assert_match(/down\s+\d{3,}\s+Add email to users/, output)
+          assert_match(/up\s+\d{3,}\s+Create users/, output)
+          assert_match(/down\s+\d{3,}\s+Add email to users/, output)
+        end
       end
 
       test 'test migration status after rollback and redo' do
         Dir.chdir(app_path) do
-          `rails generate model user username:string password:string`
-          `rails generate migration add_email_to_users email:string`
-        end
+          `rails generate model user username:string password:string;
+           rails generate migration add_email_to_users email:string;
+           rake db:migrate`
 
-        Dir.chdir(app_path) { `rake db:migrate` }
-        output = Dir.chdir(app_path) { `rake db:migrate:status` }
+           output = `rake db:migrate:status`
 
-        assert_match(/up\s+\d{14}\s+Create users/, output)
-        assert_match(/up\s+\d{14}\s+Add email to users/, output)
+           assert_match(/up\s+\d{14}\s+Create users/, output)
+           assert_match(/up\s+\d{14}\s+Add email to users/, output)
 
-        Dir.chdir(app_path) { `rake db:rollback STEP=2` }
-        output = Dir.chdir(app_path) { `rake db:migrate:status` }
+           `rake db:rollback STEP=2`
+           output = `rake db:migrate:status`
 
-        assert_match(/down\s+\d{14}\s+Create users/, output)
-        assert_match(/down\s+\d{14}\s+Add email to users/, output)
+           assert_match(/down\s+\d{14}\s+Create users/, output)
+           assert_match(/down\s+\d{14}\s+Add email to users/, output)
 
-        Dir.chdir(app_path) { `rake db:migrate:redo` }
-        output = Dir.chdir(app_path) { `rake db:migrate:status` }
+           `rake db:migrate:redo`
+           output = `rake db:migrate:status`
 
-        assert_match(/up\s+\d{14}\s+Create users/, output)
-        assert_match(/up\s+\d{14}\s+Add email to users/, output)
+           assert_match(/up\s+\d{14}\s+Create users/, output)
+           assert_match(/up\s+\d{14}\s+Add email to users/, output)
+        end
       end
 
       test 'migration status after rollback and redo without timestamps' do
         add_to_config('config.active_record.timestamped_migrations = false')
 
         Dir.chdir(app_path) do
-          `rails generate model user username:string password:string`
-          `rails generate migration add_email_to_users email:string`
-        end
+          `rails generate model user username:string password:string;
+           rails generate migration add_email_to_users email:string;
+           rake db:migrate`
 
-        Dir.chdir(app_path) { `rake db:migrate` }
-        output = Dir.chdir(app_path) { `rake db:migrate:status` }
+           output = `rake db:migrate:status`
 
-        assert_match(/up\s+\d{3,}\s+Create users/, output)
-        assert_match(/up\s+\d{3,}\s+Add email to users/, output)
+           assert_match(/up\s+\d{3,}\s+Create users/, output)
+           assert_match(/up\s+\d{3,}\s+Add email to users/, output)
 
-        Dir.chdir(app_path) { `rake db:rollback STEP=2` }
-        output = Dir.chdir(app_path) { `rake db:migrate:status` }
+           `rake db:rollback STEP=2`
+           output = `rake db:migrate:status`
 
-        assert_match(/down\s+\d{3,}\s+Create users/, output)
-        assert_match(/down\s+\d{3,}\s+Add email to users/, output)
+           assert_match(/down\s+\d{3,}\s+Create users/, output)
+           assert_match(/down\s+\d{3,}\s+Add email to users/, output)
 
-        Dir.chdir(app_path) { `rake db:migrate:redo` }
-        output = Dir.chdir(app_path) { `rake db:migrate:status` }
+           `rake db:migrate:redo`
+           output = `rake db:migrate:status`
 
-        assert_match(/up\s+\d{3,}\s+Create users/, output)
-        assert_match(/up\s+\d{3,}\s+Add email to users/, output)
+           assert_match(/up\s+\d{3,}\s+Create users/, output)
+           assert_match(/up\s+\d{3,}\s+Add email to users/, output)
+        end
       end
     end
   end

railties/test/application/rake/notes_test.rb

@@ -3,7 +3,7 @@
 module ApplicationTests
   module RakeTests
     class RakeNotesTest < ActiveSupport::TestCase
-      def setup 
+      def setup
         build_app
         require "rails/all"
       end
@@ -13,7 +13,6 @@ def teardown
       end
 
       test 'notes' do
-
         app_file "app/views/home/index.html.erb", "<% # TODO: note in erb %>"
         app_file "app/views/home/index.html.haml", "-# TODO: note in haml"
         app_file "app/views/home/index.html.slim", "/ TODO: note in slim"

railties/test/application/rake_test.rb

@@ -107,9 +107,9 @@ def test_logger_is_flushed_when_exiting_production_rake_tasks
 
     def test_loading_specific_fixtures
       Dir.chdir(app_path) do
-        `rails generate model user username:string password:string`
-        `rails generate model product name:string`
-        `rake db:migrate`
+        `rails generate model user username:string password:string;
+         rails generate model product name:string;
+         rake db:migrate`
       end
 
       require "#{rails_root}/config/environment"
@@ -124,38 +124,35 @@ def test_loading_specific_fixtures
 
     def test_scaffold_tests_pass_by_default
       content = Dir.chdir(app_path) do
-        `rails generate scaffold user username:string password:string`
-        `bundle exec rake db:migrate db:test:clone test`
+        `rails generate scaffold user username:string password:string;
+         bundle exec rake db:migrate db:test:clone test`
       end
 
       assert_match(/\d+ tests, \d+ assertions, 0 failures, 0 errors/, content)
     end
 
     def test_rake_dump_structure_should_respect_db_structure_env_variable
       Dir.chdir(app_path) do
-        `bundle exec rake db:migrate` # ensure we have a schema_migrations table to dump
-        `bundle exec rake db:structure:dump DB_STRUCTURE=db/my_structure.sql`
+        # ensure we have a schema_migrations table to dump
+        `bundle exec rake db:migrate db:structure:dump DB_STRUCTURE=db/my_structure.sql`
       end
       assert File.exists?(File.join(app_path, 'db', 'my_structure.sql'))
     end
 
     def test_rake_dump_schema_cache
       Dir.chdir(app_path) do
-        `rails generate model post title:string`
-        `rails generate model product name:string`
-        `bundle exec rake db:migrate`
-        `bundle exec rake db:schema:cache:dump`
+        `rails generate model post title:string;
+         rails generate model product name:string;
+         bundle exec rake db:migrate db:schema:cache:dump`
       end
       assert File.exists?(File.join(app_path, 'db', 'schema_cache.dump'))
     end
 
     def test_rake_clear_schema_cache
       Dir.chdir(app_path) do
-        `bundle exec rake db:schema:cache:dump`
-        `bundle exec rake db:schema:cache:clear`
+        `bundle exec rake db:schema:cache:dump db:schema:cache:clear`
       end
       assert !File.exists?(File.join(app_path, 'db', 'schema_cache.dump'))
     end
-
   end
 end