diff --git a/tests/AT-9331_test.py b/tests/AT-9331_test.py
new file mode 100644
index 0000000..6f84a02
--- /dev/null
+++ b/tests/AT-9331_test.py
@@ -0,0 +1,28 @@
+import time
+n=10
+m=10
+
+def fx(n,a):
+    for t in range(n):
+        
+        return(str(" "+'-'*n**2+' ' + '\\'*(m-a)))
+        
+
+def transition(a,stg,t):
+    for b in range(a):
+        print(str(stg) , end='')
+        time.sleep(t)
+
+        
+
+
+
+for a in range(m):
+    time.sleep(0.2)
+    transition(a ,' ',0.05) 
+    l=a**2
+    transition(l,'+',0.005)  
+    print(fx(n,a)) 
+    print('')
+
+