"""
TESTS is a dict with all you tests.
Keys for this will be categories' names.
Each test is dict with
    "input" -- input data for user function
    "answer" -- your right answer
    "explanation" -- not necessary key, it's using for additional info in animation.
"""

TESTS = {
    "X+Y": [
        {
            "input":[lambda x,y:x+y,lambda x,y:(x**2-y**2)/(x-y)],
            "answer":{"args": (1,3),"kwargs": {},"result": (4,'same')},
            "explanation":""
        }      
    ]
}

@@ -306,24 +306,72 @@
             
+%22input%22:1,%0A            %22answer%22:1,%0A            #
 %22input%22:%5Blam
@@ -417,32 +417,33 @@
 )%5D,%0A            
+#
 %22answer%22:%7B%22args%22

Update tests.py