100 lines
3.3 KiB
Ruby
100 lines
3.3 KiB
Ruby
# frozen_string_literal: true
|
|
|
|
require 'spec_helper'
|
|
|
|
RSpec.describe Gitlab::Database::SharedModel do
|
|
describe 'using an external connection' do
|
|
let!(:original_connection) { described_class.connection }
|
|
let(:new_connection) { double('connection') }
|
|
|
|
it 'overrides the connection for the duration of the block', :aggregate_failures do
|
|
expect_original_connection_around do
|
|
described_class.using_connection(new_connection) do
|
|
expect(described_class.connection).to be(new_connection)
|
|
end
|
|
end
|
|
end
|
|
|
|
it 'does not affect connections in other threads', :aggregate_failures do
|
|
expect_original_connection_around do
|
|
described_class.using_connection(new_connection) do
|
|
expect(described_class.connection).to be(new_connection)
|
|
|
|
Thread.new do
|
|
expect(described_class.connection).not_to be(new_connection)
|
|
end.join
|
|
end
|
|
end
|
|
end
|
|
|
|
context 'when multiple connection overrides are nested', :aggregate_failures do
|
|
let(:second_connection) { double('connection') }
|
|
|
|
it 'allows the nesting with the same connection object' do
|
|
expect_original_connection_around do
|
|
described_class.using_connection(new_connection) do
|
|
expect(described_class.connection).to be(new_connection)
|
|
|
|
described_class.using_connection(new_connection) do
|
|
expect(described_class.connection).to be(new_connection)
|
|
end
|
|
|
|
expect(described_class.connection).to be(new_connection)
|
|
end
|
|
end
|
|
end
|
|
|
|
it 'raises an error if the connection is changed' do
|
|
expect_original_connection_around do
|
|
described_class.using_connection(new_connection) do
|
|
expect(described_class.connection).to be(new_connection)
|
|
|
|
expect do
|
|
described_class.using_connection(second_connection) {}
|
|
end.to raise_error(/cannot nest connection overrides/)
|
|
|
|
expect(described_class.connection).to be(new_connection)
|
|
end
|
|
end
|
|
end
|
|
end
|
|
|
|
context 'when the block raises an error', :aggregate_failures do
|
|
it 're-raises the error, removing the overridden connection' do
|
|
expect_original_connection_around do
|
|
expect do
|
|
described_class.using_connection(new_connection) do
|
|
expect(described_class.connection).to be(new_connection)
|
|
|
|
raise 'here comes an error!'
|
|
end
|
|
end.to raise_error(RuntimeError, 'here comes an error!')
|
|
end
|
|
end
|
|
end
|
|
|
|
def expect_original_connection_around
|
|
# For safety, ensure our original connection is distinct from our double
|
|
# This should be the case, but in case of something leaking we should verify
|
|
expect(original_connection).not_to be(new_connection)
|
|
expect(described_class.connection).to be(original_connection)
|
|
|
|
yield
|
|
|
|
expect(described_class.connection).to be(original_connection)
|
|
end
|
|
end
|
|
|
|
describe '#connection_db_config' do
|
|
it 'returns the class connection_db_config' do
|
|
shared_model_class = Class.new(described_class) do
|
|
self.table_name = 'postgres_async_indexes'
|
|
end
|
|
|
|
shared_model = shared_model_class.new
|
|
|
|
expect(shared_model.connection_db_config). to eq(described_class.connection_db_config)
|
|
end
|
|
end
|
|
end
|