diff --git a/.mergify.yml b/.mergify.yml
new file mode 100644
index 0000000..c1f52ac
--- /dev/null
+++ b/.mergify.yml
@@ -0,0 +1,23 @@
+pull_request_rules:
+  - name: tag no test cases update when update source code
+    conditions:
+      - files~=^lib/
+      - -files~=^t/
+    actions:
+      label:
+        add:
+          - no-test-cases
+  - name: tag test cases update when update source code
+    conditions:
+      - files~=^lib/
+      - files~=^t/
+    actions:
+      label:
+        remove:
+          - no-test-cases
+  - name: ask to resolve conflict
+    conditions:
+      - conflict
+    actions:
+      comment:
+        message: This pull request is now in conflicts.
diff --git a/lib/resty/nsq/queue.lua b/lib/resty/nsq/queue.lua
index 4d5f71e..7970741 100755
--- a/lib/resty/nsq/queue.lua
+++ b/lib/resty/nsq/queue.lua
@@ -20,6 +20,7 @@ _M._VERSION = '0.01'
 _M.new_tab = new_tab
 
 
+-- we test here
 local MAX_SIZE = 5000
 
 local mt = { __index = _M }
diff --git a/t/queue.t b/t/queue.t
index c95620f..3d6f14a 100644
--- a/t/queue.t
+++ b/t/queue.t
@@ -128,6 +128,9 @@ nil:fulled, in 11
                 if not ret then
                     ngx.say(ret, ":", err, ", in ", i)
                     -- ngx.log(ngx.ERR, ret, ":", err, ", in ", i)
+                    -- ngx.log(ngx.ERR, ret, ":", err, ", in ", i)
+                    -- ngx.log(ngx.ERR, ret, ":", err, ", in ", i)
+                    -- ngx.log(ngx.ERR, ret, ":", err, ", in ", i)
                 end
 
                 if i == 5 then