okaybase commented on a change in pull request #4965:
URL: https://github.com/apache/apisix/pull/4965#discussion_r701641380
##########
File path: t/plugin/proxy-mirror.t
##########
@@ -445,3 +445,143 @@ GET /t
passed
--- no_error_log
[error]
+
+
+
+=== TEST 13: sanity check (invalid percentage)
+--- config
+ location /t {
+ content_by_lua_block {
+ local t = require("lib.test_admin").test
+ local code, body = t('/apisix/admin/routes/1',
+ ngx.HTTP_PUT,
+ [[{
+ "plugins": {
+ "proxy-mirror": {
+ "host": "http://127.0.0.1:1986";,
+ "percentage": 10
+ }
+ },
+ "upstream": {
+ "nodes": {
+ "127.0.0.1:1980": 1
+ },
+ "type": "roundrobin"
+ },
+ "uri": "/hello"
+ }]]
+ )
+
+ if code >= 300 then
+ ngx.status = code
+ end
+ ngx.print(body)
+ }
+ }
+--- request
+GET /t
+--- error_code: 400
+--- response_body
+{"error_msg":"failed to check the configuration of plugin proxy-mirror err:
property \"percentage\" validation failed: expected 10 to be smaller than 1"}
+--- no_error_log
+[error]
+
+
+
+=== TEST 14: set mirror requests percentage to 1
+--- config
+ location /t {
+ content_by_lua_block {
+ local t = require("lib.test_admin").test
+ local code, body = t('/apisix/admin/routes/1',
+ ngx.HTTP_PUT,
+ [[{
+ "plugins": {
+ "proxy-mirror": {
+ "host": "http://127.0.0.1:1986";,
+ "percentage": 1
+ }
+ },
+ "upstream": {
+ "nodes": {
+ "127.0.0.1:1980": 1
+ },
+ "type": "roundrobin"
+ },
+ "uri": "/hello"
+ }]]
+ )
+
+ if code >= 300 then
+ ngx.status = code
+ end
+ ngx.say(body)
+ }
+ }
+--- request
+GET /t
+--- error_code: 200
+--- response_body
+passed
+--- no_error_log
+[error]
+
+
+
+=== TEST 15: hit route with percentage 1
+--- request
+GET /hello?percentage=1
+--- error_code: 200
+--- response_body
+hello world
+--- error_log_like eval
+qr/uri: \/hello\?percentage=1/
+
+
+
+=== TEST 16: set mirror requests percentage to 0.5
+--- config
+ location /t {
+ content_by_lua_block {
+ local t = require("lib.test_admin").test
+ local code, body = t('/apisix/admin/routes/1',
+ ngx.HTTP_PUT,
+ [[{
+ "plugins": {
+ "proxy-mirror": {
+ "host": "http://127.0.0.1:1986";,
+ "percentage": 0.5
+ }
+ },
+ "upstream": {
+ "nodes": {
+ "127.0.0.1:1980": 1
+ },
+ "type": "roundrobin"
+ },
+ "uri": "/hello"
+ }]]
+ )
+
+ if code >= 300 then
+ ngx.status = code
+ end
+ ngx.say(body)
+ }
+ }
+--- request
+GET /t
+--- error_code: 200
+--- response_body
+passed
+--- no_error_log
+[error]
+
+
+
+=== TEST 17: hit route with percentage 0.5
Review comment:
50% it might not be very very accurate in the random case~
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