class RedditReader: def __init__(self): self.looper = Looper(wait=0.01) self.client = HttpsSocketAsync(self.looper, 'www.reddit.com') def request_top_post(self, subreddit, n=4): url = '/r/{0}/top.json?sort=top&t=day&limit={1}'.format(subreddit, n) self.client.request("GET", url, ExtensibleCallback(self.on_response)) def on_response(self, response): if response.status == 200: json_body = json.loads(response.read()) self.on_json(json_body) else: self.on_http_error(None, response) def on_json(self, response): for post in response['data']['children']: data = post["data"] print u"/r/{subreddit:<12} {ups:>4}↕{downs:<3} {title} ({url})".format( **data) def run(self): self.looper.enqueue_now(self.request_top_post, "python") self.looper.enqueue_now(self.request_top_post, "programming") self.looper.enqueue_now(self.request_top_post, "java") self.looper.enqueue_now(self.request_top_post, "android") self.looper.enqueue_now(self.request_top_post, "vive") self.looper.loop() def on_http_error(self, url, response): print "Error {0} at {1}".format(response.status, url) for header in response.getheaders(): print header self.looper.stop()
class LooperTest(unittest.TestCase): def setUp(self): self.looper = Looper(wait=0) def dummy(self): pass def dummy2(self): pass def stopper(self): self.looper.stop() def test_empty_loop_exits(self): self.looper.loop() def test_stop_stops(self): self.looper.enqueue_now(self.stopper) self.looper.enqueue_now(self.dummy) self.looper.enqueue_now(self.dummy) self.looper.loop() self.assertEquals(2, self.looper.size()) def test_enqueue_now(self): # race condition - will fail sometimes time = Time.now() self.looper.enqueue_now(self.dummy) self.assertEquals(1, self.looper.size()) self.assertEquals(time, self.looper._queue[0].time) def test_enqueue_next(self): self.looper.enqueue_now(self.dummy) self.looper.enqueue_next(self.dummy2) self.assertEquals(2, self.looper.size()) self.assertEquals(0, self.looper._queue[0].time) self.assertEquals(self.dummy2, self.looper._queue[0].func) def test_enqueue_with_millis(self): # race condition - will fail sometimes time = Time.millis_from_now(1000) self.looper.enqueue(1000, self.dummy) self.assertEquals(1, self.looper.size()) self.assertEquals(time, self.looper._queue[0].time) def test_enqueue_with_datetime(self): d = datetime(2016, 1, 1, 12, 12, 12) self.looper.enqueue(d, self.dummy) self.assertEquals(1, self.looper.size()) self.assertEquals(Time.on_date(d), self.looper._queue[0].time) def test_enqueue_with_date(self): d = date(2016, 1, 1) self.looper.enqueue(d, self.dummy) self.assertEquals(1, self.looper.size()) self.assertEquals(Time.on_date(d), self.looper._queue[0].time) def test_enqueue_with_timedelta(self): # race condition - will fail sometimes d = timedelta(milliseconds=340) self.looper.enqueue(d, self.dummy) self.assertEquals(1, self.looper.size()) self.assertEquals(Time.after_timedelta(d), self.looper._queue[0].time) def test_enqueue_at(self): # race condition - will fail sometimes time = Time.millis_from_now(1000) self.looper.enqueue_at(time, self.dummy) self.assertEquals(1, self.looper.size()) self.assertEquals(time, self.looper._queue[0].time) def test_size(self): self.assertEquals(0, self.looper.size()) self.looper.enqueue_now(self.stopper) self.assertEquals(1, self.looper.size()) self.looper.enqueue_now(self.stopper) self.assertEquals(2, self.looper.size()) self.looper.loop() self.assertEquals(1, self.looper.size())