Following are the main red flags in test assignments that should be avoided:

• The assignment was read and understood in full.

• All parts are implemented.

• Industry-standard tools and frameworks are used.

• The code is split into small, readable functions.

• Variables have descriptive names.

• Complex parts have comments.

• Errors are handled, error messages are easy to follow.

• Source files are organized reasonably.

• The web interface looks nice.

• There are tests.

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