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require_relative "../helper"
require_relative "../support/watcher_test"
require "spring/watcher/polling"
class PollingWatcherTest < Spring::Test::WatcherTest
def watcher_class
Spring::Watcher::Polling
end
test "skips staleness checks if already stale" do
class << watcher
attr_reader :checked_when_stale_count
attr_reader :checked_when_not_stale_count
def check_stale
@checked_when_stale_count = 0 unless defined? @checked_when_stale_count
@checked_when_not_stale_count = 0 unless defined? @checked_when_not_stale_count
if stale?
@checked_when_stale_count += 1
else
@checked_when_not_stale_count += 1
end
super
end
# Wait for the poller thread to finish.
def join
@poller.join if @poller
end
end
# Track when we're marked as stale.
on_stale_count = 0
watcher.on_stale { on_stale_count += 1 }
# Add a file to watch and start polling.
file = "#{@dir}/omg"
touch file, Time.now - 2.seconds
watcher.add file
watcher.start
assert watcher.running?
# First touch bumps mtime and marks as stale.
touch file, Time.now - 1.second
Timeout.timeout(1) { watcher.join }
assert !watcher.running?
assert_equal 0, watcher.checked_when_stale_count
assert_equal 1, watcher.checked_when_not_stale_count
assert_equal 1, on_stale_count
# Second touch skips mtime check because it's already stale.
touch file, Time.now
sleep 1
assert_equal 0, watcher.checked_when_stale_count
assert_equal 1, watcher.checked_when_not_stale_count
assert_equal 1, on_stale_count
end
end
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