Dependency failure

What it does

This scenario blocks network traffic to a dependency to test your application's ability to gracefully handle failure.

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Why it's recommended

Modern applications have complex chains of services that they rely on. Each link in this chain is a dependency. This chain is essential to the application's operation, and this Scenario tests what happens when one of the links in the chain breaks by dropping network traffic to it.

• Verify that your application can gracefully detect and recover from an unavailable dependency.
• Test whether your platform / networking solution routes network traffic around the unavilable dependency.
• Catch unexpected errors or crashes caused by missing dependencies.