Read the guideline before start.
An isogram is a word that has no repeating letters, consecutive or non-consecutive.
Inside app/test_main.py, write tests for a function is_isogram that takes a string word, that contains only letters,
and checks whether this word is an isogram.
Notes:
- for this task, the empty string is an isogram;
- function should be case-insensitive (M and m are considered the same letter).
Please note: you have to use pytest for writing tests.
Examples:
is_isogram('playgrounds') is True
is_isogram('look') is False
is_isogram('Adam') is False
is_isogram('') is TrueRun pytest app/ to check if function pass your tests.
Run pytest --numprocesses=auto tests/ to check if your tests cover all boundary conditions
and pass task tests.