143 lines
4.3 KiB
Ruby
143 lines
4.3 KiB
Ruby
# frozen_string_literal: true
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require 'spec_helper'
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describe Terraform::RemoteStateHandler do
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let_it_be(:project) { create(:project) }
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let_it_be(:user) { create(:user) }
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describe '#find_with_lock' do
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context 'without a state name' do
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subject { described_class.new(project, user) }
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it 'raises an exception' do
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expect { subject.find_with_lock }.to raise_error(ArgumentError)
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end
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end
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context 'with a state name' do
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subject { described_class.new(project, user, name: 'state') }
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context 'with no matching state' do
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it 'raises an exception' do
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expect { subject.find_with_lock }.to raise_error(ActiveRecord::RecordNotFound)
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end
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end
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context 'with a matching state' do
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let!(:state) { create(:terraform_state, project: project, name: 'state') }
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it 'returns the state' do
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expect(subject.find_with_lock).to eq(state)
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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 '#create_or_find!' do
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it 'requires passing a state name' do
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handler = described_class.new(project, user)
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expect { handler.create_or_find! }.to raise_error(ArgumentError)
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end
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it 'allows to create states with same name in different projects' do
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project_b = create(:project)
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state_a = described_class.new(project, user, name: 'my-state').create_or_find!
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state_b = described_class.new(project_b, user, name: 'my-state').create_or_find!
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expect(state_a).to be_persisted
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expect(state_b).to be_persisted
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expect(state_a.id).not_to eq state_b.id
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end
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it 'loads the same state upon subsequent call in the project scope' do
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state_a = described_class.new(project, user, name: 'my-state').create_or_find!
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state_b = described_class.new(project, user, name: 'my-state').create_or_find!
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expect(state_a).to be_persisted
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expect(state_a.id).to eq state_b.id
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end
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end
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context 'when state locking is not being used' do
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subject { described_class.new(project, user, name: 'my-state') }
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describe '#handle_with_lock' do
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it 'allows to modify a state using database locking' do
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state = subject.handle_with_lock do |state|
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state.name = 'updated-name'
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end
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expect(state.name).to eq 'updated-name'
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end
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it 'returns the state object itself' do
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state = subject.create_or_find!
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expect(state.name).to eq 'my-state'
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end
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end
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describe '#lock!' do
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it 'raises an error' do
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expect { subject.lock! }.to raise_error(ArgumentError)
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end
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end
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end
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context 'when using locking' do
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describe '#handle_with_lock' do
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it 'handles a locked state using exclusive read lock' do
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handler = described_class
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.new(project, user, name: 'new-state', lock_id: 'abc-abc')
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handler.lock!
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state = handler.handle_with_lock do |state|
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state.name = 'new-name'
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end
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expect(state.name).to eq 'new-name'
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end
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end
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it 'raises exception if lock has not been acquired before' do
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handler = described_class
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.new(project, user, name: 'new-state', lock_id: 'abc-abc')
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expect { handler.handle_with_lock }
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.to raise_error(described_class::StateLockedError)
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end
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describe '#lock!' do
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it 'allows to lock state if it does not exist yet' do
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handler = described_class.new(project, user, name: 'new-state', lock_id: 'abc-abc')
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state = handler.lock!
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expect(state).to be_persisted
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expect(state.name).to eq 'new-state'
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end
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it 'allows to lock state if it exists and is not locked' do
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state = described_class.new(project, user, name: 'new-state').create_or_find!
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handler = described_class.new(project, user, name: 'new-state', lock_id: 'abc-abc')
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handler.lock!
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expect(state.reload.lock_xid).to eq 'abc-abc'
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expect(state).to be_locked
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end
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it 'raises an exception when trying to unlocked state locked by someone else' do
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described_class.new(project, user, name: 'new-state', lock_id: 'abc-abc').lock!
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handler = described_class.new(project, user, name: 'new-state', lock_id: '12a-23f')
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expect { handler.lock! }.to raise_error(described_class::StateLockedError)
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end
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end
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end
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end
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