/
linux_spec.rb
197 lines (160 loc) · 6.36 KB
/
linux_spec.rb
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# frozen_string_literal: true
RSpec.describe Listen::Adapter::Linux do
describe 'class methods' do
subject { described_class }
if linux?
it { should be_usable }
else
it { should_not be_usable }
end
end
if linux?
describe 'instance methods' do
before(:all) do
require 'rb-inotify'
end
let(:dir1) { Pathname.new("/foo/dir1") }
let(:queue) { instance_double(Queue, "queue", close: nil) }
let(:config) { instance_double(Listen::Adapter::Config, "config", queue: queue) }
let(:silencer) { instance_double(Listen::Silencer, "silencer") }
let(:snapshot) { instance_double(Listen::Change, "snapshot") }
let(:record) { instance_double(Listen::Record, "record") }
# TODO: fix other adapters too!
subject { described_class.new(config) }
after do
subject.stop
end
describe 'watch events' do
let(:directories) { [Pathname.pwd] }
let(:adapter_options) { {} }
let(:default_events) { [:recursive, :attrib, :create, :modify, :delete, :move, :close_write] }
let(:fake_worker) { double(:fake_worker_for_watch_events) }
let(:fake_notifier) { double(:fake_notifier, new: fake_worker) }
before do
stub_const('INotify::Notifier', fake_notifier)
allow(config).to receive(:directories).and_return(directories)
allow(config).to receive(:adapter_options).and_return(adapter_options)
allow(config).to receive(:silencer).and_return(silencer)
allow(fake_worker).to receive(:close)
end
after do
subject.stop
end
it 'starts by calling watch with default events' do
expect(fake_worker).to receive(:watch).with(*directories.map(&:to_s), *default_events)
subject.start
end
end
describe 'inotify max watches exceeded' do
let(:directories) { [Pathname.pwd] }
let(:adapter_options) { {} }
before do
fake_worker = double(:fake_worker_for_inotify_limit_message)
allow(fake_worker).to receive(:watch).and_raise(Errno::ENOSPC)
allow(fake_worker).to receive(:close)
fake_notifier = double(:fake_notifier, new: fake_worker)
stub_const('INotify::Notifier', fake_notifier)
allow(config).to receive(:directories).and_return(directories)
allow(config).to receive(:adapter_options).and_return(adapter_options)
end
it 'raises exception' do
expect { subject.start }.to raise_exception(Listen::Error::INotifyMaxWatchesExceeded, /inotify max watches exceeded/i)
end
end
# TODO: should probably be adapted to be more like adapter/base_spec.rb
describe '_callback' do
let(:directories) { [dir1] }
let(:adapter_options) { { events: [:recursive, :close_write] } }
before do
fake_worker = double(:fake_worker_for_callback)
events = [:recursive, :close_write]
allow(fake_worker).to receive(:watch).with('/foo/dir1', *events)
allow(fake_worker).to receive(:close)
fake_notifier = double(:fake_notifier, new: fake_worker)
stub_const('INotify::Notifier', fake_notifier)
allow(config).to receive(:directories).and_return(directories)
allow(config).to receive(:adapter_options).and_return(adapter_options)
allow(config).to receive(:silencer).and_return(silencer)
allow(Listen::Record).to receive(:new).with(dir1, silencer).and_return(record)
allow(Listen::Change::Config).to receive(:new).with(queue, silencer).
and_return(config)
allow(Listen::Change).to receive(:new).with(config, record).
and_return(snapshot)
allow(subject).to receive(:require).with('rb-inotify')
subject.configure
end
let(:expect_change) do
lambda do |change|
expect(snapshot).to receive(:invalidate).with(
:file,
'path/foo.txt',
cookie: 123,
change: change
)
end
end
let(:event_callback) do
lambda do |flags|
callbacks = subject.instance_variable_get(:'@callbacks')
callbacks.values.flatten.each do |callback|
callback.call double(
:inotify_event,
name: 'foo.txt',
watcher: double(:watcher, path: '/foo/dir1/path'),
flags: flags,
cookie: 123)
end
end
end
# TODO: get fsevent adapter working like INotify
unless /1|true/ =~ ENV['LISTEN_GEM_SIMULATE_FSEVENT']
it 'recognizes close_write as modify' do
expect_change.call(:modified)
event_callback.call([:close_write])
end
it 'recognizes moved_to as moved_to' do
expect_change.call(:moved_to)
event_callback.call([:moved_to])
end
it 'recognizes moved_from as moved_from' do
expect_change.call(:moved_from)
event_callback.call([:moved_from])
end
end
end
describe '#stop' do
let(:fake_worker) { double(:fake_worker_for_stop, close: true) }
let(:directories) { [dir1] }
let(:adapter_options) { { events: [:recursive, :close_write] } }
before do
allow(config).to receive(:directories).and_return(directories)
allow(config).to receive(:adapter_options).and_return(adapter_options)
end
context 'when configured' do
before do
events = [:recursive, :close_write]
allow(fake_worker).to receive(:watch).with('/foo/dir1', *events)
fake_notifier = double(:fake_notifier, new: fake_worker)
stub_const('INotify::Notifier', fake_notifier)
allow(config).to receive(:silencer).and_return(silencer)
allow(subject).to receive(:require).with('rb-inotify')
subject.configure
end
it 'stops the worker' do
subject.stop
end
end
context 'when not even initialized' do
before do
allow(queue).to receive(:close)
end
it 'does not crash' do
expect do
subject.stop
end.to_not raise_error
end
end
end
end
end
end