116 lines
3.2 KiB
Ruby
116 lines
3.2 KiB
Ruby
# frozen_string_literal: true
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require 'spec_helper'
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describe Gitlab::DowntimeCheck do
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subject { described_class.new }
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let(:path) { 'foo.rb' }
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describe '#check' do
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before do
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expect(subject).to receive(:require).with(path)
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end
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context 'when a migration does not specify if downtime is required' do
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it 'raises RuntimeError' do
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expect(subject).to receive(:class_for_migration_file)
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.with(path)
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.and_return(Class.new)
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expect { subject.check([path]) }
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.to raise_error(RuntimeError, /it requires downtime/)
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end
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end
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context 'when a migration requires downtime' do
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context 'when no reason is specified' do
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it 'raises RuntimeError' do
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stub_const('TestMigration::DOWNTIME', true)
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expect(subject).to receive(:class_for_migration_file)
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.with(path)
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.and_return(TestMigration)
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expect { subject.check([path]) }
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.to raise_error(RuntimeError, /no reason was given/)
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end
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end
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context 'when a reason is specified' do
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it 'returns an Array of messages' do
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stub_const('TestMigration::DOWNTIME', true)
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stub_const('TestMigration::DOWNTIME_REASON', 'foo')
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expect(subject).to receive(:class_for_migration_file)
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.with(path)
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.and_return(TestMigration)
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messages = subject.check([path])
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expect(messages).to be_an_instance_of(Array)
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expect(messages[0]).to be_an_instance_of(Gitlab::DowntimeCheck::Message)
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message = messages[0]
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expect(message.path).to eq(path)
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expect(message.offline).to eq(true)
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expect(message.reason).to eq('foo')
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end
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end
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end
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end
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describe '#check_and_print' do
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it 'checks the migrations and prints the results to STDOUT' do
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stub_const('TestMigration::DOWNTIME', true)
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stub_const('TestMigration::DOWNTIME_REASON', 'foo')
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expect(subject).to receive(:require).with(path)
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expect(subject).to receive(:class_for_migration_file)
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.with(path)
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.and_return(TestMigration)
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expect(subject).to receive(:puts).with(an_instance_of(String))
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subject.check_and_print([path])
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end
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end
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describe '#class_for_migration_file' do
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it 'returns the class for a migration file path' do
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expect(subject.class_for_migration_file('123_string.rb')).to eq(String)
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end
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end
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describe '#online?' do
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it 'returns true when a migration can be performed online' do
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stub_const('TestMigration::DOWNTIME', false)
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expect(subject.online?(TestMigration)).to eq(true)
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end
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it 'returns false when a migration can not be performed online' do
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stub_const('TestMigration::DOWNTIME', true)
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expect(subject.online?(TestMigration)).to eq(false)
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end
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end
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describe '#downtime_reason' do
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context 'when a reason is defined' do
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it 'returns the downtime reason' do
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stub_const('TestMigration::DOWNTIME_REASON', 'hello')
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expect(subject.downtime_reason(TestMigration)).to eq('hello')
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end
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end
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context 'when a reason is not defined' do
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it 'returns nil' do
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expect(subject.downtime_reason(Class.new)).to be_nil
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end
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end
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end
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end
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