spacewander commented on a change in pull request #3955:
URL: https://github.com/apache/apisix/pull/3955#discussion_r604682035
##########
File path: t/plugin/traffic-split2.t
##########
@@ -311,3 +311,93 @@ host: localhost
x-real-ip: 127.0.0.1
--- no_error_log
[error]
+
+
+
+=== TEST 10: the upstream.type is `chash` and `key` is header
+--- config
+ location /t {
+ content_by_lua_block {
+ local t = require("lib.test_admin").test
+ local code, body = t('/apisix/admin/routes/1',
+ ngx.HTTP_PATCH,
+ [=[{
+ "uri": "/server_port",
+ "plugins": {
+ "traffic-split": {
+ "rules": [
+ {
+ "weighted_upstreams": [
+ {
+ "upstream": {
+ "name": "chash_test",
+ "type": "chash",
+ "hash_on": "header",
+ "key": "custom_header",
+ "nodes": {
+ "127.0.0.1:1981":1,
+ "127.0.0.1:1982":1
+ }
+ },
+ "weight": 1
+ }
+ ]
+ }
+ ]
+ }
+ },
+ "upstream": {
+ "type": "roundrobin",
+ "nodes": {
+ "127.0.0.1:1980": 1
+ }
+ }
+ }]=]
+ )
+ if code >= 300 then
+ ngx.status = code
+ end
+ ngx.say(body)
+ }
+ }
+--- request
+GET /t
+--- response_body
+passed
+--- no_error_log
+[error]
+
+
+
+=== TEST 11: hit routes, hash_on custom header
+--- config
+location /t {
+ content_by_lua_block {
+ local t = require("lib.test_admin").test
+ local bodys = {}
+ local headers = {}
+ headers["custom_header"] = "custom-one"
+ for i = 1, 4 do
+ local _, _, body = t('/server_port', ngx.HTTP_GET, "", nil,
headers)
+ bodys[i] = body
+ end
+
+ table.sort(bodys)
+ ngx.say(table.concat(bodys, ", "))
+ }
+}
+--- request
+GET /t
+--- response_body eval
+qr/1981, 1981, 1981, 1981|1982, 1982, 1982, 1982/
Review comment:
Since we only use `custom-one` as the key, in what situation 1982 will
be used?
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