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  2. Flex Gateway Policy Development Kit (PDK) (1.8)
  3. Developing Custom Policies

  4. Testing and Debugging Custom Policies

Testing and Debugging Custom Policies

Use the Policy Development Kit (PDK) testing options to validate behavior, catch regressions, and debug before you publish your policy to Exchange:

  • Debugging Custom Policies with the PDK Debugging Playground — Use the preconfigured API instance in your project’s playground directory to exercise and debug the policy interactively.

  • Writing Unit Tests: Run fast, deterministic Rust unit tests that exercise the full request and response lifecycle without configuring Envoy, WebAssembly, or external services.

  • Writing Integration Tests: Run automated tests on a local mode Flex Gateway to verify your policy with real gateway behavior and surrounding configuration.