フリー問題

問題文

An MUnit test must exercise a flow whose first element is an HTTP listener, and the test itself sends a request to that listener. The test fails because the listener was never started. What is missing?

選択肢

1. The test does not declare the flow as a mocked processor, so MUnit did not replace the listener for the duration of that test.
2. The test does not declare the flow in a before-suite section, so MUnit did not initialize the listener before the tests of that suite.
3. The test does not declare the flow as an enabled flow source, so MUnit did not start the listener for the duration of that test.
4. The test does not declare the flow in the coverage configuration, so MUnit did not instrument the listener in that suite.