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require 'spec_helper'
describe Gitlab::CurrentSettings do
include StubENV
before do
stub_env('IN_MEMORY_APPLICATION_SETTINGS', 'false')
end
describe '#current_application_settings' do
context 'with DB available' do
before do
allow_any_instance_of(Gitlab::CurrentSettings).to receive(:connect_to_db?).and_return(true)
end
it 'attempts to use cached values first' do
expect(ApplicationSetting).to receive(:current)
expect(ApplicationSetting).not_to receive(:last)
expect(current_application_settings).to be_a(ApplicationSetting)
end
it 'falls back to DB if Redis returns an empty value' do
expect(ApplicationSetting).to receive(:last).and_call_original
expect(current_application_settings).to be_a(ApplicationSetting)
end
it 'falls back to DB if Redis fails' do
expect(ApplicationSetting).to receive(:current).and_raise(::Redis::BaseError)
expect(ApplicationSetting).to receive(:last).and_call_original
expect(current_application_settings).to be_a(ApplicationSetting)
end
end
context 'with DB unavailable' do
before do
allow_any_instance_of(Gitlab::CurrentSettings).to receive(:connect_to_db?).and_return(false)
end
it 'returns an in-memory ApplicationSetting object' do
expect(ApplicationSetting).not_to receive(:current)
expect(ApplicationSetting).not_to receive(:last)
expect(current_application_settings).to be_a(OpenStruct)
end
end
context 'when ENV["IN_MEMORY_APPLICATION_SETTINGS"] is true' do
before do
stub_env('IN_MEMORY_APPLICATION_SETTINGS', 'true')
end
it 'returns an in-memory ApplicationSetting object' do
expect(ApplicationSetting).not_to receive(:current)
expect(ApplicationSetting).not_to receive(:last)
expect(current_application_settings).to be_a(ApplicationSetting)
expect(current_application_settings).not_to be_persisted
end
end
end
end