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test_food_post.py
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# Tests for the FoodPost class
from datetime import datetime
from food_post import FoodPost, DATETIME_FMT
import unittest
class DummySubmission:
def __init__(self, **kwargs):
self.id = kwargs.get("id")
self.url = kwargs.get("url")
self.permalink = kwargs.get("permalink")
self.title = kwargs.get("title")
self.media_metadata = kwargs.get("media_metadata")
self.created_utc = kwargs.get("created_utc")
class FoodPostTest(unittest.TestCase):
def test_truncate_does_nothing_for_shorter_title(self):
title = "something short"
self.assertEqual(FoodPost.truncate(title), title)
def test_truncate_returns_none_for_none_input(self):
self.assertIsNone(FoodPost.truncate(None))
def test_truncate_title_that_is_too_long(self):
truncated_title = "a" * 253 # the title will be truncated this much
title = truncated_title + "aaaaa" # len(title) > 256
expected = truncated_title + "..."
actual = FoodPost.truncate(title)
self.assertNotEqual(actual, title)
self.assertEqual(actual, expected)
def test_transform_reddit_submission_to_food_post(self):
submission_params = {
"id": "foo",
"url": "bar",
"permalink": "baz",
"title": "something",
}
fp = FoodPost.from_submission(DummySubmission(**submission_params))
self.assertIsNotNone(fp)
self.assertEqual(fp.id, submission_params["id"])
self.assertEqual(fp.image_url, submission_params["url"])
self.assertEqual(fp.title, submission_params["title"])
self.assertEqual(
fp.post_url, f'https://www.reddit.com{submission_params["permalink"]}'
)
def test_transform_submission_with_timestamp(self):
now = datetime.utcnow()
submission_params = {
"id": "foo",
"url": "bar",
"permalink": "baz",
"title": "something",
"created_utc": now.timestamp(),
}
fp = FoodPost.from_submission(DummySubmission(**submission_params))
self.assertIsNotNone(fp)
self.assertEqual(fp.id, submission_params["id"])
self.assertEqual(fp.image_url, submission_params["url"])
self.assertEqual(fp.title, submission_params["title"])
self.assertEqual(
fp.post_url, f'https://www.reddit.com{submission_params["permalink"]}'
)
self.assertEqual(fp.date_posted, now)
def test_discord_embed_omits_image_if_not_provided(self):
fp = FoodPost(id="1", title="2", permalink="3")
em = fp.to_embed()
self.assertEqual(em["title"], "2")
self.assertEqual(em["description"], "3")
self.assertNotIn("image", em)
def test_discord_embed_truncates_title(self):
truncated_title = "a" * 253 # the title will be truncated this much
title = truncated_title + "aaaaa" # len(title) > 256
expected = truncated_title + "..."
fp = FoodPost(id="1", title=title, permalink="2", image_url="3")
em = fp.to_embed()
self.assertEqual(fp.title, title)
self.assertEqual(em["title"], expected)
self.assertEqual(em["description"], "2")
self.assertEqual(em["image"], {"url": "3"})
def test_json(self):
now = datetime.now()
fp = FoodPost(id="1", title="hello", img_hash=123, created_utc=now.timestamp())
d = fp.to_json()
self.assertEqual(d["id"], "1")
self.assertEqual(d["hash"], "123")
self.assertEqual(d["title"], "hello")
self.assertEqual(d["date"], now.strftime(DATETIME_FMT))
def test_derive_image_url_from_gallery(self):
submission_params = {
"id": "foo",
"url": "https://www.reddit.com/gallery/bar",
"permalink": "baz",
"title": "something",
"media_metadata": {"foo1": 1, "bar2": 3}, # the value here isn't used
}
fp = FoodPost.from_submission(DummySubmission(**submission_params))
self.assertIsNotNone(fp)
self.assertEqual(fp.image_url, "https://i.redd.it/bar2.jpg")
def test_none_url_returns_none(self):
submission_params = {"id": "foo", "permalink": "baz", "title": "something"}
res = FoodPost.derive_image_url(DummySubmission(**submission_params))
self.assertIsNone(res)
def test_normal_url_does_not_mutate(self):
submission_params = {
"id": "foo",
"url": "bar",
"permalink": "baz",
"title": "something",
}
res = FoodPost.derive_image_url(DummySubmission(**submission_params))
self.assertEqual(res, submission_params["url"])
def test_derive_image_url_truncates_query_parameters(self):
# https://github.com/SaxyPandaBear/my-webhooks/issues/12
img_url = "https://preview.redd.it/chun02can1f81.png?width=640&format=png&auto=webp&s=e05f245a349e5971ced5ed125327bb69fa0a4ccc"
expected = "https://preview.redd.it/chun02can1f81.png"
submission_params = {
"id": "foo",
"url": img_url,
"permalink": "baz",
"title": "something",
}
res = FoodPost.derive_image_url(DummySubmission(**submission_params))
self.assertEqual(res, expected)
def test_empty_metadata_returns_none(self):
submission_params = {
"id": "foo",
"url": "https://www.reddit.com/gallery/bar",
"permalink": "baz",
"title": "something",
"media_metadata": {},
}
res = FoodPost.derive_image_url(DummySubmission(**submission_params))
self.assertIsNone(res)
def test_none_metadata_returns_none(self):
submission_params = {
"id": "foo",
"url": "https://www.reddit.com/gallery/bar",
"permalink": "baz",
"title": "something",
}
res = FoodPost.derive_image_url(DummySubmission(**submission_params))
self.assertIsNone(res)