127 lines
4.6 KiB
Ruby
127 lines
4.6 KiB
Ruby
# frozen_string_literal: true
|
|
require 'spec_helper'
|
|
|
|
RSpec.describe Gitlab::Database::Migrations::Runner do
|
|
let(:result_dir) { Pathname.new(Dir.mktmpdir) }
|
|
|
|
let(:migration_runs) { [] } # This list gets populated as the runner tries to run migrations
|
|
|
|
# Tests depend on all of these lists being sorted in the order migrations would be applied
|
|
let(:applied_migrations_other_branches) { [double(ActiveRecord::Migration, version: 1, name: 'migration_complete_other_branch')] }
|
|
|
|
let(:applied_migrations_this_branch) do
|
|
[
|
|
double(ActiveRecord::Migration, version: 2, name: 'older_migration_complete_this_branch'),
|
|
double(ActiveRecord::Migration, version: 3, name: 'newer_migration_complete_this_branch')
|
|
].sort_by(&:version)
|
|
end
|
|
|
|
let(:pending_migrations) do
|
|
[
|
|
double(ActiveRecord::Migration, version: 4, name: 'older_migration_pending'),
|
|
double(ActiveRecord::Migration, version: 5, name: 'newer_migration_pending')
|
|
].sort_by(&:version)
|
|
end
|
|
|
|
before do
|
|
stub_const('Gitlab::Database::Migrations::Runner::BASE_RESULT_DIR', result_dir)
|
|
allow(ActiveRecord::Migrator).to receive(:new) do |dir, _all_migrations, _schema_migration_class, version_to_migrate|
|
|
migrator = double(ActiveRecord::Migrator)
|
|
expect(migrator).to receive(:run) do
|
|
migration_runs << double('migrator', dir: dir, version_to_migrate: version_to_migrate)
|
|
end
|
|
migrator
|
|
end
|
|
|
|
all_versions = (applied_migrations_other_branches + applied_migrations_this_branch).map(&:version)
|
|
migrations = applied_migrations_other_branches + applied_migrations_this_branch + pending_migrations
|
|
ctx = double(ActiveRecord::MigrationContext, get_all_versions: all_versions, migrations: migrations, schema_migration: ActiveRecord::SchemaMigration)
|
|
|
|
allow(described_class).to receive(:migration_context).and_return(ctx)
|
|
|
|
names_this_branch = (applied_migrations_this_branch + pending_migrations).map { |m| "db/migrate/#{m.version}_#{m.name}.rb"}
|
|
allow(described_class).to receive(:migration_file_names_this_branch).and_return(names_this_branch)
|
|
end
|
|
|
|
after do
|
|
FileUtils.rm_rf(result_dir)
|
|
end
|
|
|
|
it 'creates the results dir when one does not exist' do
|
|
FileUtils.rm_rf(result_dir)
|
|
|
|
expect do
|
|
described_class.new(direction: :up, migrations: [], result_dir: result_dir).run
|
|
end.to change { Dir.exist?(result_dir) }.from(false).to(true)
|
|
end
|
|
|
|
describe '.up' do
|
|
context 'result directory' do
|
|
it 'uses the /up subdirectory' do
|
|
expect(described_class.up.result_dir).to eq(result_dir.join('up'))
|
|
end
|
|
end
|
|
|
|
context 'migrations to run' do
|
|
subject(:up) { described_class.up }
|
|
|
|
it 'is the list of pending migrations' do
|
|
expect(up.migrations).to eq(pending_migrations)
|
|
end
|
|
end
|
|
|
|
context 'running migrations' do
|
|
subject(:up) { described_class.up }
|
|
|
|
it 'runs the unapplied migrations in version order', :aggregate_failures do
|
|
up.run
|
|
|
|
expect(migration_runs.map(&:dir)).to match_array([:up, :up])
|
|
expect(migration_runs.map(&:version_to_migrate)).to eq(pending_migrations.map(&:version))
|
|
end
|
|
|
|
it 'writes a metadata file with the current schema version' do
|
|
up.run
|
|
|
|
metadata_file = result_dir.join('up', described_class::METADATA_FILENAME)
|
|
expect(metadata_file.exist?).to be_truthy
|
|
metadata = Gitlab::Json.parse(File.read(metadata_file))
|
|
expect(metadata).to match('version' => described_class::SCHEMA_VERSION)
|
|
end
|
|
end
|
|
end
|
|
|
|
describe '.down' do
|
|
subject(:down) { described_class.down }
|
|
|
|
context 'result directory' do
|
|
it 'is the /down subdirectory' do
|
|
expect(down.result_dir).to eq(result_dir.join('down'))
|
|
end
|
|
end
|
|
|
|
context 'migrations to run' do
|
|
it 'is the list of migrations that are up and on this branch' do
|
|
expect(down.migrations).to eq(applied_migrations_this_branch)
|
|
end
|
|
end
|
|
|
|
context 'running migrations' do
|
|
it 'runs the applied migrations for the current branch in reverse order', :aggregate_failures do
|
|
down.run
|
|
|
|
expect(migration_runs.map(&:dir)).to match_array([:down, :down])
|
|
expect(migration_runs.map(&:version_to_migrate)).to eq(applied_migrations_this_branch.reverse.map(&:version))
|
|
end
|
|
end
|
|
|
|
it 'writes a metadata file with the current schema version' do
|
|
down.run
|
|
|
|
metadata_file = result_dir.join('down', described_class::METADATA_FILENAME)
|
|
expect(metadata_file.exist?).to be_truthy
|
|
metadata = Gitlab::Json.parse(File.read(metadata_file))
|
|
expect(metadata).to match('version' => described_class::SCHEMA_VERSION)
|
|
end
|
|
end
|
|
end
|