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01Ask for work you can check 02Read the whole diff 03Keep secrets out of the code 04Treat every input as hostile 05Check who is asking 06Check that it exists 07Make tests able to fail 08Plan for when it breaks

Hall Pass $1.95/month or $19.50/year · one room $1.00 · Free during preview

07Make tests able to fail

Tests for a cart total

Tests Python (pytest) 15 lines

The askYou asked for "tests for cart_total, including discount codes." The run is green. Tick the lines that make the suite prove less than it seems.

This bench is in the Hall Pass ($1.95/month or $19.50/year) or Room 07 on its own for $1.00. Free during preview. Prices

Tick every line you would not accept. Tap or click the line; you can untick it again.

Tick the lines you would send back.