Tests to specify the behaviour of ActiveRecord::Migrator.get_all_vers…

…ions() [#5066 state:resolved]

Signed-off-by: José Valim <jose.valim@gmail.com>

activerecord/test/cases/migration_test.rb

@@ -1358,6 +1358,20 @@ def test_migrator_forward
       ActiveRecord::Migrator.forward(MIGRATIONS_ROOT + "/valid")
       assert_equal(3, ActiveRecord::Migrator.current_version)
     end
+
+    def test_get_all_versions
+      ActiveRecord::Migrator.migrate(MIGRATIONS_ROOT + "/valid")
+      assert_equal([1,2,3], ActiveRecord::Migrator.get_all_versions)      
+
+      ActiveRecord::Migrator.rollback(MIGRATIONS_ROOT + "/valid")
+      assert_equal([1,2], ActiveRecord::Migrator.get_all_versions)
+
+      ActiveRecord::Migrator.rollback(MIGRATIONS_ROOT + "/valid")
+      assert_equal([1], ActiveRecord::Migrator.get_all_versions)
+
+      ActiveRecord::Migrator.rollback(MIGRATIONS_ROOT + "/valid")
+      assert_equal([], ActiveRecord::Migrator.get_all_versions)
+    end
 
     def test_schema_migrations_table_name
       ActiveRecord::Base.table_name_prefix = "prefix_"