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module FileUpdateCheckerWithEnumerableTestCases
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 = build_new_watcher([]) { 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 = build_new_watcher(FILES) { i += 1 }
assert !checker.execute_if_updated
assert_equal 0, i
end
def test_should_invoke_the_block_if_a_file_has_changed
i = 0
checker = build_new_watcher(FILES) { i += 1 }
sleep 1
FileUtils.touch(FILES)
sleep 1
assert checker.execute_if_updated
assert_equal 1, i
end
def test_updated_should_become_true_when_watched_files_are_deleted
watcher = build_new_watcher(FILES) { i += 1 }
assert !watcher.updated?
FileUtils.rm(FILES)
sleep 1
assert watcher.updated?
end
def test_should_be_robust_enough_to_handle_deleted_files
i = 0
checker = build_new_watcher(FILES) { i += 1 }
FileUtils.rm_f(FILES)
sleep 1
assert checker.execute_if_updated
assert_equal 1, i
end
def test_should_be_robust_to_handle_files_with_wrong_modified_time
i = 0
now = Time.now
time = Time.mktime(now.year + 1, now.month, now.day) # wrong mtime from the future
File.utime(time, time, FILES[2])
checker = build_new_watcher(FILES) { i += 1 }
sleep 1
FileUtils.touch(FILES[0..1])
sleep 1
assert checker.execute_if_updated
assert_equal 1, i
end
def test_should_cache_updated_result_until_execute
i = 0
checker = build_new_watcher(FILES) { i += 1 }
assert !checker.updated?
sleep 1
FileUtils.touch(FILES)
sleep 1
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 = build_new_watcher([], 'tmp_watcher' => [:txt]) { i += 1 }
FileUtils.cd 'tmp_watcher' do
FileUtils.touch(FILES)
end
sleep 1
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 = build_new_watcher([], 'tmp_watcher' => :rb) { i += 1 }
FileUtils.cd 'tmp_watcher' do
FileUtils.touch(FILES)
end
sleep 1
assert !checker.execute_if_updated
assert_equal 0, i
end
def test_should_not_block_with_unusual_file_names
unusual_dirname = 'tmp_watcher/valid,yetstrange,path,'
FileUtils.mkdir_p(unusual_dirname)
FileUtils.touch(FILES.map { |file_name| "#{unusual_dirname}/#{file_name}" })
test = Thread.new do
build_new_watcher([], unusual_dirname => :txt) { i += 1 }
Thread.exit
end
test.priority = -1
test.join(5)
assert !test.alive?
end
end
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