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())
