Python Testing with pytest

Selecting Tests with Custom Markers

Custom markers are markers we make up ourselves and apply to tests. Think of them like tags or labels. Custom markers can be used to select tests to run or skip.

To see custom markers in action, let’s take a look at a couple of tests for the “start” behavior:

ch6/smoke/test_start_unmarked.py

import pytest
from cards import Card, InvalidCardId


def test_start(cards_db):
    """
    start changes state from "todo" to "in prog"
    """
    i = cards_db.add_card(Card("foo", state="todo"))
    cards_db.start(i)
    c = cards_db.get_card(i)
    assert c.state == "in prog"


def test_start_non_existent(cards_db):
    """
    Shouldn't be able to start a non-existent card.
    """
 any_number ...