Revert "Make it possible to provide schema version in tests"

This reverts commit 775cee73.

spec/lib/gitlab/background_migration/migrate_events_to_push_event_payloads_spec.rb

@@ -210,11 +210,7 @@ describe Gitlab::BackgroundMigration::MigrateEventsToPushEventPayloads::Event do
   end
 end
 
-##
-# The background migration relies on a temporary table, hence we're migrating
-# to a specific version of the database where said table is still present.
-#
-describe Gitlab::BackgroundMigration::MigrateEventsToPushEventPayloads, :migration, schema: 20170608152748 do
+describe Gitlab::BackgroundMigration::MigrateEventsToPushEventPayloads do
   let(:migration) { described_class.new }
   let(:project) { create(:project_empty_repo) }
   let(:author) { create(:user) }
@@ -233,6 +229,21 @@ describe Gitlab::BackgroundMigration::MigrateEventsToPushEventPayloads, :migrati
     )
   end
 
+  # The background migration relies on a temporary table, hence we're migrating
+  # to a specific version of the database where said table is still present.
+  before :all do
+    ActiveRecord::Migration.verbose = false
+
+    ActiveRecord::Migrator
+      .migrate(ActiveRecord::Migrator.migrations_paths, 20170608152748)
+  end
+
+  after :all do
+    ActiveRecord::Migrator.migrate(ActiveRecord::Migrator.migrations_paths)
+
+    ActiveRecord::Migration.verbose = true
+  end
+
   describe '#perform' do
     it 'returns if data should not be migrated' do
       allow(migration).to receive(:migrate?).and_return(false)

spec/spec_helper.rb

@@ -136,12 +136,17 @@ RSpec.configure do |config|
     Sidekiq.redis(&:flushall)
   end
 
-  config.before(:context, :migration) do
-    schema_migrate_down!
+  config.before(:example, :migration) do
+    ActiveRecord::Migrator
+      .migrate(migrations_paths, previous_migration.version)
+
+    reset_column_in_migration_models
   end
 
-  config.after(:context, :migration) do
-    schema_migrate_up!
+  config.after(:example, :migration) do
+    ActiveRecord::Migrator.migrate(migrations_paths)
+
+    reset_column_in_migration_models
   end
 
   config.around(:each, :nested_groups) do |example|

spec/support/migrations_helpers.rb

@@ -33,21 +33,6 @@ module MigrationsHelpers
     end
   end
 
-  def migration_schema_version
-    self.class.metadata[:schema] || previous_migration.version
-  end
-
-  def schema_migrate_down!
-    ActiveRecord::Migrator
-      .migrate(migrations_paths, migration_schema_version)
-    reset_column_in_migration_models
-  end
-
-  def schema_migrate_up!
-    ActiveRecord::Migrator.migrate(migrations_paths)
-    reset_column_in_migration_models
-  end
-
   def migrate!
     ActiveRecord::Migrator.up(migrations_paths) do |migration|
       migration.name == described_class.name