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new 4d59b5683a Add an autest for s-maxage Cache-Control response directive
(#11601)
4d59b5683a is described below
commit 4d59b5683a91c13edf1a7e7070352fb661e097f3
Author: Brian Neradt <[email protected]>
AuthorDate: Tue Jul 23 18:12:08 2024 -0500
Add an autest for s-maxage Cache-Control response directive (#11601)
This adds an autest to verify that ATS caching funcionality behaves
correctly when handling the s-maxage Cache-Control response directive.
No production changes are needed because ATS passes all the added tests.
---
tests/gold_tests/cache/cache-control.test.py | 18 ++
.../replay/cache-control-s-maxage.replay.yaml | 232 +++++++++++++++++++++
2 files changed, 250 insertions(+)
diff --git a/tests/gold_tests/cache/cache-control.test.py
b/tests/gold_tests/cache/cache-control.test.py
index 7a4a373a30..7699fbae2e 100644
--- a/tests/gold_tests/cache/cache-control.test.py
+++ b/tests/gold_tests/cache/cache-control.test.py
@@ -137,6 +137,24 @@ tr.Processes.Default.StartBefore(server)
tr.Processes.Default.StartBefore(ts)
tr.AddVerifierClientProcess("proxy-verifier-client", replay_file,
http_ports=[ts.Variables.port])
+#
+# Verify correct handling of various s-maxage directives in responses.
+#
+ts = Test.MakeATSProcess("ts-s-maxage")
+replay_file = "replay/cache-control-s-maxage.replay.yaml"
+server = Test.MakeVerifierServerProcess("s-maxage-server", replay_file)
+ts.Disk.records_config.update(
+ {
+ 'proxy.config.diags.debug.enabled': 1,
+ 'proxy.config.diags.debug.tags': 'http',
+ 'proxy.config.http.insert_age_in_response': 0,
+ })
+ts.Disk.remap_config.AddLine('map /
http://127.0.0.1:{0}'.format(server.Variables.http_port))
+tr = Test.AddTestRun("Verify correct max-age cache-control behavior.")
+tr.Processes.Default.StartBefore(server)
+tr.Processes.Default.StartBefore(ts)
+tr.AddVerifierClientProcess("s-maxage-client", replay_file,
http_ports=[ts.Variables.port])
+
#
# Verify correct interaction between cache-control no-cache and pragma header
#
diff --git a/tests/gold_tests/cache/replay/cache-control-s-maxage.replay.yaml
b/tests/gold_tests/cache/replay/cache-control-s-maxage.replay.yaml
new file mode 100644
index 0000000000..f8cd29dbfd
--- /dev/null
+++ b/tests/gold_tests/cache/replay/cache-control-s-maxage.replay.yaml
@@ -0,0 +1,232 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements. See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership. The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License. You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+#
+# This replay file assumes that caching is enabled.
+#
+
+meta:
+ version: "1.0"
+
+ blocks:
+ - request_for_positive_s_maxage: &request_for_positive_s_maxage
+ client-request:
+ method: "GET"
+ version: "1.1"
+ scheme: "http"
+ url: /path/200_positive_s_maxage
+ headers:
+ fields:
+ - [ Host, example.com ]
+
+ # Add a delay so ATS has time to finish any caching IO for the previous
+ # transaction.
+ delay: 100ms
+
+ - request_for_zero_s_maxage: &request_for_zero_s_maxage
+ client-request:
+ method: "GET"
+ version: "1.1"
+ scheme: "http"
+ url: /path/200_zero_s_maxage
+ headers:
+ fields:
+ - [ Host, example.com ]
+
+ # Add a delay so ATS has time to finish any caching IO for the previous
+ # transaction.
+ delay: 100ms
+
+ - request_for_negative_s_maxage: &request_for_negative_s_maxage
+ client-request:
+ method: "GET"
+ version: "1.1"
+ scheme: "http"
+ url: /path/200_negative_s_maxage
+ headers:
+ fields:
+ - [ Host, example.com ]
+
+ # Add a delay so ATS has time to finish any caching IO for the previous
+ # transaction.
+ delay: 100ms
+
+ - request_for_non_number_s_maxage: &request_for_non_number_s_maxage
+ client-request:
+ method: "GET"
+ version: "1.1"
+ scheme: "http"
+ url: /path/200_non_number_s_maxage
+ headers:
+ fields:
+ - [ Host, example.com ]
+
+ # Add a delay so ATS has time to finish any caching IO for the previous
+ # transaction.
+ delay: 100ms
+
+ - 200_ok_response: &200_ok_response
+ server-response:
+ status: 200
+ reason: OK
+ headers:
+ fields:
+ - [ Content-Length, 16 ]
+ - [ Cache-Control, s-maxage=300 ]
+
+sessions:
+- transactions:
+
+ #
+ # Test 1: Verify that a 200 response with a positive s-maxage is cached.
+ #
+ - all: { headers: { fields: [[ uuid, 1 ]]}}
+ <<: *request_for_positive_s_maxage
+
+ server-response:
+ status: 200
+ reason: OK
+ headers:
+ fields:
+ - [ Content-Length, 16 ]
+ - [ Cache-Control, s-maxage=300 ]
+
+ proxy-response:
+ status: 200
+
+ - all: { headers: { fields: [[ uuid, 2 ]]}}
+ <<: *request_for_positive_s_maxage
+
+ # This should not go through to the server. Return a non-200 response to
+ # verify it is served from cache.
+ server-response:
+ status: 400
+ reason: "Bad Request"
+ headers:
+ fields:
+ - [ Content-Length, 0 ]
+
+ # Expect the cached 200 response.
+ proxy-response:
+ status: 200
+
+ #
+ # Test 2: Verify that a 200 response with a 0 s-maxage is considered stale.
+ #
+ - all: { headers: { fields: [[ uuid, 3 ]]}}
+ <<: *request_for_zero_s_maxage
+
+ server-response:
+ status: 200
+ reason: OK
+ headers:
+ fields:
+ - [ Content-Length, 16 ]
+ # Note that ATS as a shared caching proxy should treat s-maxage with
+ # priority over max-age.
+ - [ Cache-Control, "s-maxage=0,public,max-age=300" ]
+
+ proxy-response:
+ status: 200
+
+ - all: { headers: { fields: [[ uuid, 4 ]]}}
+ <<: *request_for_zero_s_maxage
+
+ # This should go through to the server because the response's s-maxage was 0
+ # and therefore object should be considered stale.
+ server-response:
+ status: 400
+ reason: "Bad Request"
+ headers:
+ fields:
+ - [ Content-Length, 0 ]
+
+ # Expect the 400 response from the server because the 200 response should
+ # be considered stale.
+ proxy-response:
+ status: 400
+
+ #
+ # Test 3: Verify that a 200 response with a negative max age is not served
+ # from the cache. Since it is invalid, the item should be considered stale.
+ #
+ - all: { headers: { fields: [[ uuid, 5 ]]}}
+ <<: *request_for_negative_s_maxage
+
+ server-response:
+ status: 200
+ reason: OK
+ headers:
+ fields:
+ - [ Content-Length, 16 ]
+ # Notice the negative s-maxage.
+ - [ Cache-Control, s-maxage=-300 ]
+
+ proxy-response:
+ status: 200
+
+ - all: { headers: { fields: [[ uuid, 6 ]]}}
+ <<: *request_for_negative_s_maxage
+
+ # This should go through to the server because the above should not be
+ # served from the cache.
+ server-response:
+ status: 400
+ reason: "Bad Request"
+ headers:
+ fields:
+ - [ Content-Length, 0 ]
+
+ # Expect the 400 response from the server because the 200 response should
+ # not be served from the cache.
+ proxy-response:
+ status: 400
+
+ #
+ # Test 4: Verify that a 200 response with a non-integer s-maxage is not
served
+ # from the cache. Since it is invalid, it should be considered stale.
+ #
+ - all: { headers: { fields: [[ uuid, 7 ]]}}
+ <<: *request_for_non_number_s_maxage
+
+ server-response:
+ status: 200
+ reason: OK
+ headers:
+ fields:
+ - [ Content-Length, 16 ]
+ # Notice the invalid, non-integer s-maxage value.
+ - [ Cache-Control, s-maxage=not_a_number ]
+
+ proxy-response:
+ status: 200
+
+ - all: { headers: { fields: [[ uuid, 8 ]]}}
+ <<: *request_for_non_number_s_maxage
+
+ # This should go through to the server because the above should not be
+ # cached.
+ server-response:
+ status: 400
+ reason: "Bad Request"
+ headers:
+ fields:
+ - [ Content-Length, 0 ]
+
+ # Expect the 400 response from the server because the 200 response should
+ # not be cached.
+ proxy-response:
+ status: 400