def test_post_cached_with_id(self):
response = post_through_spectre(
'/post_id_cache/',
data='{"request_id":123, "vary_id":"abc"}',
extra_headers={'content-type': 'application/json'})
assert response.status_code == 200
assert response.headers['Spectre-Cache-Status'] == 'miss'
# When calling with different data, we will see a cache miss.
response = post_through_spectre(
'/post_id_cache/',
data='{"request_id":234, "vary_id":"abc"}',
extra_headers={'content-type': 'application/json'})
assert response.status_code == 200
assert response.headers['Spectre-Cache-Status'] == 'miss'
# When calling with different data with same id, we will see a cache miss.
response = post_through_spectre(
'/post_id_cache/',
data='{"request_id":234, "vary_id":"def"}',
extra_headers={'content-type': 'application/json'})
assert response.status_code == 200
assert response.headers['Spectre-Cache-Status'] == 'miss'
# Calling again with same request_id should be a cache hit
assert_is_in_spectre_cache(
'/post_id_cache/',
data='{"request_id":234, "vary_id":"abc"}',
extra_headers={'content-type': 'application/json'})
def test_default_vary_headers(self):
assert get_through_spectre('/long_ttl/vary').headers['Spectre-Cache-Status'] == 'miss'
assert assert_is_in_spectre_cache('/long_ttl/vary')
# namespace vary_headers do not contain X-Mode
assert assert_is_in_spectre_cache('/long_ttl/vary', {'x-mode': 'ro'})
assert get_through_spectre('/long_ttl/vary', {'accept-encoding': 'text'}).headers['Spectre-Cache-Status'] == 'miss'
def test_purge_cassandra_by_id(self):
get_through_spectre('/bulk_requester?ids=1')
assert_is_in_spectre_cache('/bulk_requester?ids=1')
# Purge id 1
purge_resource({'namespace': 'backend.main', 'cache_name': 'bulk_requester_does_not_cache_missing_ids', 'id': '1'})
get_resp_3 = get_through_spectre('/bulk_requester?ids=1')
# resp 3 was no longer cached.
assert get_resp_3.headers['Spectre-Cache-Status'] == 'miss'
def test_post_always_cached_for_extended_json_content_type(self):
response = post_through_spectre(
'/post_always_cache/',
data={},
extra_headers={'content-type': 'application/json; charset=utf-8'})
assert response.status_code == 200
assert response.headers['Spectre-Cache-Status'] == 'miss'
# When calling again the result should be cached
assert_is_in_spectre_cache(
'/post_always_cache/',
data={},
extra_headers={'content-type': 'application/json; charset=utf-8'})
def test_post_cache_hit_even_if_body_doesnt_match_without_vary(self):
response = post_through_spectre(
'/post_always_cache/',
data='{"field1":"key1"}',
extra_headers={'content-type': 'application/json'})
assert response.status_code == 200
assert response.headers['Spectre-Cache-Status'] == 'miss'
# When calling again the result should be cached
assert_is_in_spectre_cache(
'/post_always_cache/',
data='{"field1":"key2"}',
extra_headers={'content-type': 'application/json'})
def test_post_cached_with_id_ignore_fields(self):
response = post_through_spectre(
'/post_id_cache_variable_body/',
data='{"request_id":234, "ignore_field1":"abc"}',
extra_headers={'content-type': 'application/json'})
assert response.status_code == 200
assert response.headers['Spectre-Cache-Status'] == 'miss'
# Calling again with more fields in body which are ignored would also be a cache hit
assert_is_in_spectre_cache(
'/post_id_cache_variable_body/',
data=
'{"request_id":234, "ignore_field1":"xyz", "ignore_field3":"21"}',
extra_headers={'content-type': 'application/json'})
def test_spectre_status_response_header(self):
response = get_through_spectre('/not_cacheable')
assert response.headers['Spectre-Cache-Status'] == 'non-cacheable-uri (backend.main)'
response = get_through_spectre('/timestamp/spectre_status_header')
assert response.headers['Spectre-Cache-Status'] == 'miss'
assert_is_in_spectre_cache('/timestamp/spectre_status_header')
response = get_through_spectre('/timestamp/spectre_status_header', extra_headers={'Pragma': 'no-cache'})
assert response.headers['Spectre-Cache-Status'] == 'no-cache-header'
response = post_through_spectre('/timestamp/spectre_status_header')
assert response.headers['Spectre-Cache-Status'] == 'non-cacheable-method'
def test_different_vary_headers(self):
# same vary header
val1 = get_through_spectre('/timestamp/cached', {'accept-encoding': 'testzip, deflate, custom'})
assert val1.headers['Spectre-Cache-Status'] == 'miss'
assert_is_in_spectre_cache('/timestamp/cached', {'accept-encoding': 'testzip, deflate, custom'})
# different vary headers --> val3 is a miss
val3 = get_through_spectre('/timestamp/cached', {'accept-encoding': 'none'})
assert val3.headers['Spectre-Cache-Status'] == 'miss'
# contains x-mode --> miss
val4 = get_through_spectre('/timestamp/cached', {'X-Mode': 'ro'})
assert val4.headers['Spectre-Cache-Status'] == 'miss'
# Host is not a Vary header --> hit
assert_is_in_spectre_cache('/timestamp/cached', {'X-Mode': 'ro', 'Host': 'localhost'})
def test_caching_works_with_id_extraction(self):
response = get_through_spectre('/biz?foo=bar&business_id=1234')
assert response.headers['Spectre-Cache-Status'] == 'miss'
# ensure extracting the id is not messing up the caching logic
assert_is_in_spectre_cache('/biz?foo=bar&business_id=1234')
# check that invalidation is actually supported
purge_resource({
'namespace': 'backend.main',
'cache_name': 'url_with_id_extraction',
'id': '1234',
})
# now this should be a cache miss
response = get_through_spectre('/biz?foo=bar&business_id=1234')
assert response.headers['Spectre-Cache-Status'] == 'miss'
def test_post_cached_with_id_can_be_purged(self):
response = post_through_spectre(
'/post_id_cache/',
data='{"request_id":123, "vary_id":"abc"}',
extra_headers={'content-type': 'application/json'})
assert response.status_code == 200
assert response.headers['Spectre-Cache-Status'] == 'miss'
# When calling with different data with same id, we will see a cache miss.
response = post_through_spectre(
'/post_id_cache/',
data='{"request_id":123, "vary_id":"def"}',
extra_headers={'content-type': 'application/json'})
assert response.status_code == 200
assert response.headers['Spectre-Cache-Status'] == 'miss'
# Calling again with same request_id should be a cache hit
assert_is_in_spectre_cache(
'/post_id_cache/',
data='{"request_id":123, "vary_id":"abc"}',
extra_headers={'content-type': 'application/json'})
# Purge all resources with same id.
purge_resource({
'namespace': 'backend.main',
'cache_name': 'post_with_id',
'id': '123'
})
# All resources with same id should be a miss now.
response = post_through_spectre(
'/post_id_cache/',
data='{"request_id":123, "vary_id":"def"}',
extra_headers={'content-type': 'application/json'})
assert response.status_code == 200
assert response.headers['Spectre-Cache-Status'] == 'miss'
response = post_through_spectre(
'/post_id_cache/',
data='{"request_id":123, "vary_id":"abc"}',
extra_headers={'content-type': 'application/json'})
assert response.status_code == 200
assert response.headers['Spectre-Cache-Status'] == 'miss'
def test_response_headers_passed_back(self):
response = get_through_spectre('/not_cacheable')
assert response.headers['Some-Header'] == 'abc'
assert response.headers['Spectre-Cache-Status'] == 'non-cacheable-uri (backend.main)'
response = get_through_spectre('/timestamp/response_header')
assert response.headers['Spectre-Cache-Status'] == 'miss'
assert response.headers['Some-Header'] == 'abc'
response = assert_is_in_spectre_cache('/timestamp/response_header')
assert response.headers['Some-Header'] == 'abc'
def test_with_invalid_id_when_cache_missing_ids_is_true(self):
path = '/bulk_requester_2/{ids}/v1?k1=v1'
# 0 < ids < 1000 are valid
response = get_through_spectre(path.format(ids='10,5000,11'))
assert len(response.json()) == 2
assert response.headers['Spectre-Cache-Status'] == 'miss'
# "5000" is an invalid id; but by default cache_missing_ids is set to true, so the
# empty response would've been cached from the above request
hit_response = assert_is_in_spectre_cache(path.format(ids='5000'))
assert hit_response.json() == []
def test_with_invalid_id_when_cache_missing_ids_is_true(self):
base_path = '/bulk_requester_2'
# 0 < ids < 1000 are valid
resp1 = get_through_spectre("{}/{}/v1?k1=v2".format(base_path, '10,5000,11'))
headers1, body1 = resp1.headers, resp1.json()
assert len(body1) == 2
assert headers1['Spectre-Cache-Status'] == 'miss'
# "5000" is an invalid id; but by default cache_missing_ids is set to true, so the
# empty response would've been cached from the above request
resp2 = assert_is_in_spectre_cache("{}/{}/v1?k1=v2".format(base_path, '5000'))
resp2.json() == []
def test_bulk_ids_in_path(self):
base_path = '/bulk_requester_2'
resp_1 = get_through_spectre("{}/{}/v1?k1=v2".format(base_path, '1,2,3'))
# Bulk was a miss
bulk_headers, bulk_body = resp_1.headers, resp_1.json()
assert bulk_headers['Spectre-Cache-Status'] == 'miss'
resp_2 = assert_is_in_spectre_cache("{}/{}/v1?k1=v2".format(base_path, '2'))
_, body = resp_2.headers, resp_2.json()
# Check for correctness
assert len(body) == 1
assert bulk_body[1] == body[0]
def test_purge_cassandra_by_id_backward_compatible(self):
# Delete after PERF-2453 is done
get_through_spectre('/bulk_requester?ids=1')
assert_is_in_spectre_cache('/bulk_requester?ids=1')
# Purge id 1
res = requests.request(
'PURGE',
util.SPECTRE_BASE_URL +
'?cache_name=bulk_requester_does_not_cache_missing_ids&id=1',
headers=util.HAPROXY_ADDED_HEADERS)
assert res.status_code == 200
get_resp_3 = get_through_spectre('/bulk_requester?ids=1')
# resp 3 was no longer cached.
assert get_resp_3.headers['Spectre-Cache-Status'] == 'miss'
res = requests.request(
'PURGE',
util.SPECTRE_BASE_URL +
'?cache_name=bulk_requester_does_not_cache_missing_ids',
headers=util.HAPROXY_ADDED_HEADERS)
assert res.status_code == 200
def test_uncacheable_headers_not_passed_back(self):
"""Spectre doesn't store uncacheable headers in the cache, but it always
passes back all response headers in the uncached (or uncacheable) case.
"""
response = get_through_spectre('/not_cacheable')
assert response.headers['Spectre-Cache-Status'] == 'non-cacheable-uri (backend.main)'
assert 'Uncacheable-Header' in response.headers
response = get_through_spectre('/timestamp/uncacheable_header')
assert response.headers['Spectre-Cache-Status'] == 'miss'
assert 'Uncacheable-Header' in response.headers
# This is the cached case, where the uncacheable header isn't expected
# in the response.
response = assert_is_in_spectre_cache('/timestamp/uncacheable_header')
assert 'Uncacheable-Header' not in response.headers
def make_request(self, ids, cache=True, extra_headers=None, assert_hit=False):
base_path = '/bulk_requester'
ids = [str(i) for i in ids]
ids = "%2C".join(ids)
if not cache:
cache_headers = {'Cache-Control': 'no-cache'}
if extra_headers is None:
extra_headers = {}
extra_headers.update(cache_headers)
if assert_hit:
resp = assert_is_in_spectre_cache("{}?ids={}".format(base_path, ids), extra_headers)
else:
resp = get_through_spectre("{}?ids={}".format(base_path, ids), extra_headers)
return resp.headers, resp.json()
def test_different_params_same_id(self):
base_path = '/bulk_requester'
resp1 = get_through_spectre("{}?ids={}&data=false".format(base_path, '5%2C6'))
assert resp1.headers['Spectre-Cache-Status'] == 'miss'
resp2 = get_through_spectre("{}?ids={}&data=true".format(base_path, '5'))
assert resp2.headers['Spectre-Cache-Status'] == 'miss'
assert_is_in_spectre_cache("{}?data=false&ids={}".format(base_path, '5'))
assert_is_in_spectre_cache("{}?data=false&ids={}".format(base_path, '6'))
assert_is_in_spectre_cache("{}?ids={}&data=false".format(base_path, '6'))
def test_gzipped_responses_work(self):
assert get_through_spectre(
'/gzipped').headers['Spectre-Cache-Status'] == 'miss'
assert_is_in_spectre_cache('/gzipped')
def test_query_params_ordering(self):
val1 = get_through_spectre('/happy/?k1=v1&k2=v2')
assert val1.headers['Spectre-Cache-Status'] == 'miss'
assert_is_in_spectre_cache('/happy/?k1=v1&k2=v2')
assert_is_in_spectre_cache('/happy/?k2=v2&k1=v1')
