gitlab-org--gitlab-foss/spec/migrations
2018-01-24 17:25:55 +00:00
..
active_record
add_foreign_key_to_merge_requests_spec.rb Use batching to clear orphans in head_pipeline migration 2017-07-18 12:07:12 +02:00
add_head_pipeline_for_each_merge_request_spec.rb Use the DatabaseCleaner 'deletion' strategy instead of 'truncation' 2018-01-24 17:25:55 +00:00
calculate_conv_dev_index_percentages_spec.rb Use the DatabaseCleaner 'deletion' strategy instead of 'truncation' 2018-01-24 17:25:55 +00:00
clean_appearance_symlinks_spec.rb Merge branch 'bvl-remove-appearance-symlink' into 'security-9-3' 2017-07-19 22:28:17 -05:00
clean_stage_id_reference_migration_spec.rb Fix background migration cleanup specs 2017-07-20 10:53:52 +02:00
clean_stages_statuses_migration_spec.rb Make sure all stages are migrated after a cleanup 2017-09-18 13:47:46 +02:00
clean_up_for_members_spec.rb Fix user membership destroy relation 2018-01-02 15:06:44 +00:00
clean_upload_symlinks_spec.rb Update migrations to move directly into the -/system folder 2017-08-11 18:15:02 +02:00
cleanup_move_system_upload_folder_symlink_spec.rb Move the uploads/system folder to uploads/-/system 2017-07-18 15:38:54 +02:00
cleanup_namespaceless_pending_delete_projects_spec.rb Refactor project and storage types 2017-08-22 06:33:20 +02:00
cleanup_nonexisting_namespace_pending_delete_projects_spec.rb Migration to remove pending delete projects with non-existing namespace 2017-08-22 14:29:54 +02:00
convert_custom_notification_settings_to_columns_spec.rb Revert "Merge branch 'revert-f2421b2b' into 'master'" 2017-09-11 15:44:42 +00:00
delete_conflicting_redirect_routes_spec.rb Make DeleteConflictingRedirectRoutes no-op 2018-01-03 12:23:20 -08:00
fix_wrongly_renamed_routes_spec.rb Use the DatabaseCleaner 'deletion' strategy instead of 'truncation' 2018-01-24 17:25:55 +00:00
issues_moved_to_id_foreign_key_spec.rb Fix PostgreSQL implementation of migration 2017-12-27 04:12:18 -08:00
migrate_build_stage_reference_again_spec.rb Rename stage ref migration specs to match a class name 2017-06-21 15:51:00 +02:00
migrate_gcp_clusters_to_new_clusters_architectures_spec.rb Prevent cluster migration spec from interfering with later specs 2018-01-05 17:44:38 +00:00
migrate_issues_to_ghost_user_spec.rb Use the DatabaseCleaner 'deletion' strategy instead of 'truncation' 2018-01-24 17:25:55 +00:00
migrate_kubernetes_service_to_new_clusters_architectures_spec.rb Fix static analysys 2018-01-08 17:01:29 +09:00
migrate_old_artifacts_spec.rb Fix specs failures, and use factory with :ci_job_artifact, :archive 2017-12-03 12:04:49 +01:00
migrate_pipeline_sidekiq_queues_spec.rb Migrate new jobs when reverting pipeline queues migration 2017-08-25 14:25:18 +02:00
migrate_pipeline_stages_spec.rb
migrate_process_commit_worker_jobs_spec.rb Incorporate Gitaly's CommitService.FindCommit RPC 2017-08-07 23:33:43 -04:00
migrate_stage_id_reference_in_background_spec.rb Refactor matchers for background migrations 2018-01-05 13:40:31 +01:00
migrate_stages_statuses_spec.rb Refactor matchers for background migrations 2018-01-05 13:40:31 +01:00
migrate_user_activities_to_users_last_activity_on_spec.rb Use the DatabaseCleaner 'deletion' strategy instead of 'truncation' 2018-01-24 17:25:55 +00:00
migrate_user_authentication_token_to_personal_access_token_spec.rb Migrate user private tokens to personal access tokens 2017-11-02 11:39:03 +01:00
migrate_user_project_view_spec.rb Use the DatabaseCleaner 'deletion' strategy instead of 'truncation' 2018-01-24 17:25:55 +00:00
move_personal_snippets_files_spec.rb Move the personal snippet uploads from system to -/system 2017-08-11 18:17:45 +02:00
move_system_upload_folder_spec.rb Update migrations to move directly into the -/system folder 2017-08-11 18:15:02 +02:00
move_uploads_to_system_dir_spec.rb Update migrations to move directly into the -/system folder 2017-08-11 18:15:02 +02:00
normalize_ldap_extern_uids_spec.rb Run background migrations with a minimum interval 2018-01-05 16:23:25 +01:00
populate_can_push_from_deploy_keys_projects_spec.rb Applied fix 2018-01-17 21:42:18 +01:00
README.md Extend migrations testing documentation 2017-08-16 13:15:41 +02:00
remove_assignee_id_from_issue_spec.rb Add spec for removing issues.assignee_id 2017-12-11 14:09:55 +00:00
remove_dot_git_from_usernames_spec.rb Fix spec 2017-08-17 14:39:02 -07:00
remove_duplicate_mr_events_spec.rb Use the DatabaseCleaner 'deletion' strategy instead of 'truncation' 2018-01-24 17:25:55 +00:00
remove_empty_fork_networks_spec.rb Fix the Upload model being tainted after migration spec 2018-01-22 15:31:41 +00:00
remove_soft_removed_objects_spec.rb Added tests for removing soft removed objects 2018-01-10 17:33:03 +01:00
rename_duplicated_variable_key_spec.rb Rename the migration test to match the migration path 2017-06-27 18:29:23 +08:00
rename_more_reserved_project_names_spec.rb Use the DatabaseCleaner 'deletion' strategy instead of 'truncation' 2018-01-24 17:25:55 +00:00
rename_reserved_project_names_spec.rb Use the DatabaseCleaner 'deletion' strategy instead of 'truncation' 2018-01-24 17:25:55 +00:00
rename_users_with_renamed_namespace_spec.rb Use the DatabaseCleaner 'deletion' strategy instead of 'truncation' 2018-01-24 17:25:55 +00:00
schedule_create_gpg_key_subkeys_from_gpg_keys_spec.rb Refactor matchers for background migrations 2018-01-05 13:40:31 +01:00
schedule_merge_request_diff_migrations_spec.rb Refactor matchers for background migrations 2018-01-05 13:40:31 +01:00
schedule_merge_request_diff_migrations_take_two_spec.rb Refactor matchers for background migrations 2018-01-05 13:40:31 +01:00
schedule_merge_request_latest_merge_request_diff_id_migrations_spec.rb Refactor matchers for background migrations 2018-01-05 13:40:31 +01:00
schedule_populate_merge_request_metrics_with_events_data_spec.rb Denormalize commits count for merge request diffs 2018-01-10 20:40:02 +01:00
track_untracked_uploads_spec.rb Refactor matchers for background migrations 2018-01-05 13:40:31 +01:00
turn_nested_groups_into_regular_groups_for_mysql_spec.rb Rename many path_with_namespace -> full_path 2017-08-01 07:26:58 +02:00
update_legacy_diff_notes_type_for_import_spec.rb Fix notes type created from import 2017-09-29 11:18:58 +00:00
update_notes_type_for_import_spec.rb Fix notes type created from import 2017-09-29 11:18:58 +00:00
update_retried_for_ci_build_spec.rb Use the DatabaseCleaner 'deletion' strategy instead of 'truncation' 2018-01-24 17:25:55 +00:00
update_upload_paths_to_system_spec.rb Fix spec/migrations/update_upload_paths_to_system_spec.rb to use the :migration metadata 2018-01-18 12:17:22 +01:00

Testing migrations

In order to reliably test a migration, we need to test it against a database schema that this migration has been written for. In order to achieve that we have some migration helpers and RSpec test tag, called :migration.

If you want to write a test for a migration consider adding :migration tag to the test signature, like describe SomeMigrationClass, :migration.

How does it work?

Adding a :migration tag to a test signature injects a few before / after hooks to the test.

The most important change is that adding a :migration tag adds a before hook that will revert all migrations to the point that a migration under test is not yet migrated.

In other words, our custom RSpec hooks will find a previous migration, and migrate the database down to the previous migration version.

With this approach you can test a migration against a database schema that this migration has been written for.

Use migrate! helper to run the migration that is under test.

The after hook will migrate the database up and reinstitutes the latest schema version, so that the process does not affect subsequent specs and ensures proper isolation.

Testing a class that is not an ActiveRecord::Migration

In order to test a class that is not a migration itself, you will need to manually provide a required schema version. Please add a schema tag to a context that you want to switch the database schema within.

Example: describe SomeClass, :migration, schema: 20170608152748.

Available helpers

Use table helper to create a temporary ActiveRecord::Base derived model for a table.

Use migrate! helper to run the migration that is under test. It will not only run migration, but will also bump the schema version in the schema_migrations table. It is necessary because in the after hook we trigger the rest of the migrations, and we need to know where to start.

See spec/support/migrations_helpers.rb for all the available helpers.

An example

require 'spec_helper'

# Load a migration class.

require Rails.root.join('db', 'post_migrate', '20170526185842_migrate_pipeline_stages.rb')

describe MigratePipelineStages, :migration do

  # Create test data - pipeline and CI/CD jobs.

  let(:jobs) { table(:ci_builds) }
  let(:stages) { table(:ci_stages) }
  let(:pipelines) { table(:ci_pipelines) }
  let(:projects) { table(:projects) }

  before do
    projects.create!(id: 123, name: 'gitlab1', path: 'gitlab1')
    pipelines.create!(id: 1, project_id: 123, ref: 'master', sha: 'adf43c3a')
    jobs.create!(id: 1, commit_id: 1, project_id: 123, stage_idx: 2, stage: 'build')
    jobs.create!(id: 2, commit_id: 1, project_id: 123, stage_idx: 1, stage: 'test')
  end

  # Test the migration.

  it 'correctly migrates pipeline stages' do
    expect(stages.count).to be_zero

    migrate!

    expect(stages.count).to eq 2
    expect(stages.all.pluck(:name)).to match_array %w[test build]
  end
end

Best practices

  1. Note that this type of tests do not run within the transaction, we use a truncation database cleanup strategy. Do not depend on transaction being present.