5. Construct a Python Unit Test 200-901 Practice Questions (Page 6)

Questions 26–30

1. 26application · medium

   A project has multiple test modules that need to be run together as a group, but the engineer also wants to run them individually. What is the best way to organize the tests?

   • AUse a separate Python script that imports each test module and calls unittest.main() for each.
   • BCreate a separate test suite for each module and manually combine them in a main script.
   • CPlace all test modules in a single directory and use unittest discovery to run them all.
   • DPut all test methods in a single test class.
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2. 27expert · hard

   A team has a test suite organized into multiple packages. They want to generate a coverage report that includes only the application code, not the test code itself. They are using the coverage.py tool. Which command should they use?

   • Acoverage run --omit=tests/* -m unittest discover
   • Bcoverage report --include=tests/*
   • Ccoverage run -m unittest discover
   • Dcoverage run --source=app -m unittest discover
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4. 28application · medium

   A function send_notification(device) calls an external email service. The test needs to verify that send_notification calls the email service's send method exactly once with the device's IP address. Which approach is correct?

   • AUse a mock for the email service and assert that the send method was called once with the expected argument.
   • BUse assertTrue to check that the email service was called.
   • CUse assertEqual to compare the email service's send method to the expected value.
   • DUse a fake email service that records the call in a list and assert the list contents.
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5. 29foundation · easy

   What is the primary purpose of using unittest.mock in a unit test?

   • ATo measure the code coverage of the test suite.
   • BTo speed up test execution by running tests in parallel.
   • CTo automatically generate test data for the code under test.
   • DTo replace external dependencies with controlled objects to isolate the code under test.
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6. 30foundation · easy

   Which class from the unittest.mock module is used to create a mock object that can replace a function or method?

   • AMock
   • Bpatch
   • CMagicMock
   • DPropertyMock
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