135 lines
4.2 KiB
Ruby
135 lines
4.2 KiB
Ruby
# frozen_string_literal: true
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require 'spec_helper'
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RSpec.describe Gitlab::Database::Migrations::Instrumentation do
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let(:result_dir) { Dir.mktmpdir }
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after do
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FileUtils.rm_rf(result_dir)
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end
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describe '#observe' do
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subject { described_class.new(result_dir: result_dir) }
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let(:migration_name) { 'test' }
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let(:migration_version) { '12345' }
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it 'executes the given block' do
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expect { |b| subject.observe(version: migration_version, name: migration_name, &b) }.to yield_control
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end
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context 'behavior with observers' do
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subject { described_class.new(observer_classes: [Gitlab::Database::Migrations::Observers::MigrationObserver], result_dir: result_dir).observe(version: migration_version, name: migration_name) {} }
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let(:observer) { instance_double('Gitlab::Database::Migrations::Observers::MigrationObserver', before: nil, after: nil, record: nil) }
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before do
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allow(Gitlab::Database::Migrations::Observers::MigrationObserver).to receive(:new).and_return(observer)
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end
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it 'instantiates observer with observation' do
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expect(Gitlab::Database::Migrations::Observers::MigrationObserver)
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.to receive(:new)
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.with(instance_of(Gitlab::Database::Migrations::Observation), anything) { |observation| expect(observation.version).to eq(migration_version) }
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.and_return(observer)
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subject
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end
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it 'calls #before, #after, #record on given observers' do
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expect(observer).to receive(:before).ordered
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expect(observer).to receive(:after).ordered
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expect(observer).to receive(:record).ordered
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subject
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end
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it 'ignores errors coming from observers #before' do
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expect(observer).to receive(:before).and_raise('some error')
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subject
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end
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it 'ignores errors coming from observers #after' do
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expect(observer).to receive(:after).and_raise('some error')
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subject
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end
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it 'ignores errors coming from observers #record' do
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expect(observer).to receive(:record).and_raise('some error')
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subject
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end
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end
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context 'on successful execution' do
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subject { described_class.new(result_dir: result_dir).observe(version: migration_version, name: migration_name) {} }
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it 'records walltime' do
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expect(subject.walltime).not_to be_nil
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end
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it 'records success' do
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expect(subject.success).to be_truthy
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end
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it 'records the migration version' do
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expect(subject.version).to eq(migration_version)
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end
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it 'records the migration name' do
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expect(subject.name).to eq(migration_name)
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end
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end
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context 'upon failure' do
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subject { described_class.new(result_dir: result_dir).observe(version: migration_version, name: migration_name) { raise 'something went wrong' } }
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it 'raises the exception' do
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expect { subject }.to raise_error(/something went wrong/)
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end
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context 'retrieving observations' do
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subject { instance.observations.first }
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before do
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instance.observe(version: migration_version, name: migration_name) { raise 'something went wrong' }
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rescue StandardError
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# ignore
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end
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let(:instance) { described_class.new(result_dir: result_dir) }
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it 'records walltime' do
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expect(subject.walltime).not_to be_nil
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end
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it 'records failure' do
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expect(subject.success).to be_falsey
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end
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it 'records the migration version' do
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expect(subject.version).to eq(migration_version)
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end
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it 'records the migration name' do
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expect(subject.name).to eq(migration_name)
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end
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end
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end
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context 'sequence of migrations with failures' do
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subject { described_class.new(result_dir: result_dir) }
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let(:migration1) { double('migration1', call: nil) }
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let(:migration2) { double('migration2', call: nil) }
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it 'records observations for all migrations' do
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subject.observe(version: migration_version, name: migration_name) {}
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subject.observe(version: migration_version, name: migration_name) { raise 'something went wrong' } rescue nil
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expect(subject.observations.size).to eq(2)
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end
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end
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end
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end
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