Voice agent testing

Catch regressions with simulated callers before a real one ever hears them.

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  • Reply, tool, and full-conversation tests
  • Simulation runs on the real worker runtime
  • Results judged server-side

Definition

Voice agent testing means running simulated callers against an agent before a real one connects. A caller talks over the agent, goes quiet, or asks the same thing two ways in three seconds. Simulation reproduces those situations on demand, so failures surface in a test run rather than on a live call.

Test kinds

Three kinds cover the failure modes. Reply tests check a single turn: did the agent say the right thing. Tool tests confirm the agent calls your APIs correctly with the right arguments. Full-conversation tests replay entire scenarios end to end.

Real runtime

Tests run on the real worker runtime, not a mock. A simulated call takes the same path a live call would, so passing a test means the agent behaves correctly where it counts. Results are judged server-side against your criteria.

Why it matters

A voice agent breaks in ways a unit test never sees. Simulated callers make those breaks repeatable and catchable, so you ship changes with confidence instead of hoping the next live call goes well.

FAQ

Frequently asked questions

How do you test a voice agent?
With simulated callers. Reply tests check a single turn, tool tests confirm the agent calls your APIs correctly, and full-conversation tests replay whole scenarios. They run on the real worker runtime, so a test exercises the same path a live call would, and results are judged server-side.
Why simulate instead of just calling in?
Manual calling does not scale and does not repeat. Simulated callers run the same scenarios every time, so a regression shows up in the test runner instead of surprising a real customer. You can run them before every change.
What kinds of tests are there?
Three: reply tests for individual turns, tool tests for the agent's API calls, and full-conversation tests for end-to-end scenarios. Together they cover the ways a voice conversation actually breaks.
Related
voice agent tool calling voice agent webhooks voice agent platform Voice Agent API

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Catch regressions with simulated callers before a real one ever hears them.

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