In Qodex, test rules define the expected behavior of your APIs — including assertions on response data, status codes, and even validations against your database.

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1. AI-Suggested Rules (No Setup Required)

When you create test scenarios using the AI Agent, Qodex automatically suggests a set of relevant rules under the Suggested tab.

These are intelligently generated based on:

  • The API’s response schema
  • Typical validation patterns (e.g., status code checks, key presence)
  • Historical assertions across similar endpoints

Common examples:

  • Status code should be 200
  • Response body should contain user_id
  • Error message should be shown if email is missing

Click to apply the rules directly, or customize as needed.

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2. Manual Rules (Assertions + DB Validation)

If your scenario needs custom logic:

  1. Switch to the Write tab
  2. Choose from:
    • Assertion: validate status codes, keys, values in the response
    • DB Validation: write natural language rules to cross-check against your database (e.g., Postgres)

You can simply write the rule in English like:

  • “If the user is created, their name and email should match the DB”
  • “If token is missing, return 401”

Qodex converts this into JS-style test logic and executes it for you.