Fixed automatic maintaining test schema to properly handle sql structure schema format.

Additionally:
* It changes `purge` task on `sqlite3` adapter to recreate database file, to
be consistent with other adapters.
* Adds `purge` step when loading from `schema.rb`

1 files changed, 52 insertions, 2 deletions

diff --git a/railties/test/application/test_test.rb b/railties/test/application/test_test.rb
index d3ea8ebc72..c724c867ec 100644
--- a/railties/test/application/test_test.rb
+++ b/railties/test/application/test_test.rb
@@ -125,12 +125,12 @@ module ApplicationTests
 
       assert_unsuccessful_run "models/user_test.rb", "Migrations are pending"
 
-      app_file 'db/structure.sql', <<-RUBY
+      app_file 'db/structure.sql', <<-SQL
         CREATE TABLE "schema_migrations" ("version" varchar(255) NOT NULL);
         CREATE UNIQUE INDEX "unique_schema_migrations" ON "schema_migrations" ("version");
         CREATE TABLE "users" ("id" INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, "name" varchar(255));
         INSERT INTO schema_migrations (version) VALUES ('#{version}');
-      RUBY
+      SQL
 
       app_file 'config/initializers/disable_maintain_test_schema.rb', <<-RUBY
         Rails.application.config.active_record.maintain_test_schema = false
@@ -143,6 +143,56 @@ module ApplicationTests
       assert_successful_test_run('models/user_test.rb')
     end
 
+    test "sql structure migrations when adding column to existing table" do
+      output_1  = script('generate model user name:string')
+      version_1 = output_1.match(/(\d+)_create_users\.rb/)[1]
+
+      app_file 'test/models/user_test.rb', <<-RUBY
+        require 'test_helper'
+        class UserTest < ActiveSupport::TestCase
+          test "user" do
+            User.create! name: "Jon"
+          end
+        end
+      RUBY
+
+      app_file 'config/initializers/enable_sql_schema_format.rb', <<-RUBY
+        Rails.application.config.active_record.schema_format = :sql
+      RUBY
+
+      app_file 'db/structure.sql', <<-SQL
+        CREATE TABLE "schema_migrations" ("version" varchar(255) NOT NULL);
+        CREATE UNIQUE INDEX "unique_schema_migrations" ON "schema_migrations" ("version");
+        CREATE TABLE "users" ("id" INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, "name" varchar(255));
+        INSERT INTO schema_migrations (version) VALUES ('#{version_1}');
+      SQL
+
+      assert_successful_test_run('models/user_test.rb')
+
+      output_2  = script('generate migration add_email_to_users')
+      version_2 = output_2.match(/(\d+)_add_email_to_users\.rb/)[1]
+
+      app_file 'test/models/user_test.rb', <<-RUBY
+        require 'test_helper'
+
+        class UserTest < ActiveSupport::TestCase
+          test "user" do
+            User.create! name: "Jon", email: "jon@doe.com"
+          end
+        end
+      RUBY
+
+      app_file 'db/structure.sql', <<-SQL
+        CREATE TABLE "schema_migrations" ("version" varchar(255) NOT NULL);
+        CREATE UNIQUE INDEX "unique_schema_migrations" ON "schema_migrations" ("version");
+        CREATE TABLE "users" ("id" INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, "name" varchar(255), "email" varchar(255));
+        INSERT INTO schema_migrations (version) VALUES ('#{version_1}');
+        INSERT INTO schema_migrations (version) VALUES ('#{version_2}');
+      SQL
+
+      assert_successful_test_run('models/user_test.rb')
+    end
+
     private
       def assert_unsuccessful_run(name, message)
         result = run_test_file(name)