Create Pattern Rules

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In this tutorial, you will learn how to create pattern rules. A pattern ruleset lets you catch a pattern of code and emits violations/errors.

Objectives

You are going to write an analysis rule that

1. Detects assert foo and replaces with assert bar
2. Pass any check on a test file

To make a rule, we need to go through the following steps:

1. Create a ruleset
2. Create a rule
3. Write the rule
4. Add some tests

Click next at the top for a walkthrough step by step.