def test_get_posts_order(db, order: Optional[str]):
"""This test ensures that ordering works correct."""
test_posts = posts.get_posts(order=order, limit=30, offset=0)
if order.startswith('-'):
order_field = order[1:]
check_func = _check_order_desc
else:
order_field = order
check_func = _check_order_asc
for post_index in range(len(test_posts) - 1):
check_func(
test_posts[post_index],
test_posts[post_index + 1],
order_field,
)
def get_posts(request: http.HttpRequest) -> http.JsonResponse:
"""Get hackernews posts."""
form = post_forms.PostsRequest(request.GET)
if not form.is_valid():
return JsonResponseBadRequest(
message='invalid GET data',
details=form.errors,
)
post_list = posts.get_posts(
order=form.cleaned_data.get('order'),
limit=form.cleaned_data.get('limit'),
offset=form.cleaned_data.get('offset'),
)
response_posts = []
for post in post_list:
response_posts.append(post.to_dict())
return http.JsonResponse({'posts': response_posts})
def test_get_posts_offset_empty(db):
"""This test ensures that offset bigger than objects return nothing."""
test_posts = posts.get_posts(order='id', limit=1, offset=50)
assert not test_posts
def test_get_posts_offset(db, offset):
"""This test ensures that offset works correct."""
test_posts = posts.get_posts(order='id', limit=1, offset=offset)
assert test_posts[0].pk == offset + 1
def test_get_posts_limit(db):
"""This test ensures that limit works correct."""
limit = 30
test_posts = posts.get_posts(order=None, limit=limit, offset=0)
assert len(test_posts) == limit