feat(core): fix code

spec/02-integration/05-proxy/34-proxy_with_compress_spec.lua

@@ -0,0 +1,70 @@
+local helpers = require "spec.helpers"
+
+local TCP_PORT = helpers.get_available_port()
+
+
+for _, strategy in helpers.each_strategy() do
+  describe("Proxy with compressor [#" .. strategy .. "]", function()
+
+    describe("[http] brotli", function()
+      local proxy_client
+      local proxy_ssl_client
+      lazy_setup(function()
+        local bp = helpers.get_db_utils(strategy, {
+          "routes",
+          "services",
+          "plugins",
+        })
+
+        local s0 = bp.services:insert {
+          name = "service0",
+        }
+
+        local r0 = bp.routes:insert {
+          paths = { "/0" },
+          service = s0,
+        }
+
+        assert(helpers.start_kong({
+          database      = strategy,
+          nginx_conf    = "spec/fixtures/custom_nginx.template",
+          nginx_proxy_brotli = "on",
+          nginx_proxy_brotli_comp_level = 6,
+          nginx_proxy_brotli_types = "text/plain text/css application/json application/x-javascript text/xml application/xml application/xml+rss text/javascript application/javascript text/x-js",
+          stream_listen = "off",
+          admin_listen  = "off",
+        }))
+      end)
+
+      lazy_teardown(function()
+        helpers.stop_kong()
+      end)
+
+      before_each(function()
+        proxy_client = helpers.proxy_client()
+        proxy_ssl_client = helpers.proxy_ssl_client()
+      end)
+
+      after_each(function()
+        if proxy_client then
+          proxy_client:close()
+        end
+
+        if proxy_ssl_client then
+          proxy_ssl_client:close()
+        end
+      end)
+
+      it("header can be set when brotli compressor works fine", function()
+        local res = proxy_client:get("/0/xml", {
+          headers = {
+            ["Accept-Encoding"] = "br",
+            ["Content-Type"] = "application/xml",
+          }
+        })
+        assert.res_status(200, res)
+        assert.equal("br", res.headers["Content-Encoding"])
+      end)
+    end)
+  end)
+end