Write an integration test for two modules

Writes one integration test that checks how two parts of your web app work together, using real code paths and a small set of fakes.

Task: Write one integration test in [test framework] that checks how the two modules below work together. Context: The modules are [module A] and [module B] in my web app, written in [language]. The handoff between them matters because [why it matters]. The database and outside services should be faked, and the test must never contact a live third-party service. Rules: - Read both modules first and name, in two lines, the exact point where they hand data to each other. - Let the two modules run for real and fake only what sits outside them. - Test one happy path and one failure at the handoff. - If a fake would need to behave in a way you cannot see in the code, ask me one question before writing it. Result: Two lines naming the handoff, then one code block with the test. Close with one sentence on what this test cannot catch. Material: [paste module A and module B here]

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