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require 'abstract_unit'
require 'fileutils'
require 'thread'
MTIME_FIXTURES_PATH = File.expand_path("../fixtures", __FILE__)
class FileUpdateCheckerWithEnumerableTest < ActiveSupport::TestCase
FILES = %w(1.txt 2.txt 3.txt)
def setup
FileUtils.mkdir_p("tmp_watcher")
FileUtils.touch(FILES)
end
def teardown
FileUtils.rm_rf("tmp_watcher")
FileUtils.rm_rf(FILES)
end
def test_should_not_execute_the_block_if_no_paths_are_given
i = 0
checker = ActiveSupport::FileUpdateChecker.new([]){ i += 1 }
checker.execute_if_updated
assert_equal 0, i
end
def test_should_not_invoke_the_block_if_no_file_has_changed
i = 0
checker = ActiveSupport::FileUpdateChecker.new(FILES){ i += 1 }
5.times { assert !checker.execute_if_updated }
assert_equal 0, i
end
def test_should_invoke_the_block_if_a_file_has_changed
i = 0
checker = ActiveSupport::FileUpdateChecker.new(FILES){ i += 1 }
sleep(1)
FileUtils.touch(FILES)
assert checker.execute_if_updated
assert_equal 1, i
end
def test_should_be_robust_enough_to_handle_deleted_files
i = 0
checker = ActiveSupport::FileUpdateChecker.new(FILES){ i += 1 }
FileUtils.rm(FILES)
assert !checker.execute_if_updated
assert_equal 0, i
end
def test_should_cache_updated_result_until_execute
i = 0
checker = ActiveSupport::FileUpdateChecker.new(FILES){ i += 1 }
assert !checker.updated?
sleep(1)
FileUtils.touch(FILES)
assert checker.updated?
checker.execute
assert !checker.updated?
end
def test_should_invoke_the_block_if_a_watched_dir_changed_its_glob
i = 0
checker = ActiveSupport::FileUpdateChecker.new([], "tmp_watcher" => [:txt]){ i += 1 }
FileUtils.cd "tmp_watcher" do
FileUtils.touch(FILES)
end
assert checker.execute_if_updated
assert_equal 1, i
end
def test_should_not_invoke_the_block_if_a_watched_dir_changed_its_glob
i = 0
checker = ActiveSupport::FileUpdateChecker.new([], "tmp_watcher" => :rb){ i += 1 }
FileUtils.cd "tmp_watcher" do
FileUtils.touch(FILES)
end
assert !checker.execute_if_updated
assert_equal 0, i
end
def test_should_not_block_if_a_strange_filename_used
FileUtils.mkdir_p("tmp_watcher/valid,yetstrange,path,")
FileUtils.touch(FILES.map { |file_name| "tmp_watcher/valid,yetstrange,path,/#{file_name}" })
test = Thread.new do
ActiveSupport::FileUpdateChecker.new([],"tmp_watcher/valid,yetstrange,path," => :txt) { i += 1 }
Thread.exit
end
test.priority = -1
test.join(5)
assert !test.alive?
end
end
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