Understanding Unit Testing Quiz

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Question 1/15

What is code coverage in relation to unit testing?

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Question 2/15

What does 'mocking' mean in the context of unit testing?

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Question 3/15

What tool is commonly used for unit testing in Java?

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Question 4/15

Which phase of software development benefits first from unit testing?

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Question 5/15

What is the primary goal of unit testing?

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Question 6/15

Which of the following statements is true about unit tests?

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Question 7/15

How often should unit tests be updated?

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Question 8/15

What is a common characteristic of a poorly written unit test?

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Question 9/15

Which of the following is NOT a benefit of unit testing?

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Question 10/15

What is considered a good practice in unit testing when dealing with exceptions?

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Question 11/15

Which of the following should be avoided in unit tests?

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Question 12/15

Which of these is a common challenge associated with unit tests?

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Question 13/15

Which of these principles aligns with good unit testing practices?

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Question 14/15

When using mocks in unit tests, what is the primary advantage?

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Question 15/15

When should unit tests be executed?

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Question 1/15
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What is code coverage in relation to unit testing?

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Code coverage measures the percentage of code that is executed by the test cases, indicating which parts of the code are tested.
Question 2/15
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What does 'mocking' mean in the context of unit testing?

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Mocking involves creating fake objects that mimic the behavior of real objects to test interactions in isolation.
Question 3/15
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What tool is commonly used for unit testing in Java?

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JUnit is a widely used unit testing framework for Java.
Question 4/15
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Which phase of software development benefits first from unit testing?

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The development phase benefits first from unit testing as it helps developers catch errors and issues early in the development cycle.
Question 5/15
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What is the primary goal of unit testing?

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Unit testing focuses on testing individual components (or units) to ensure they function correctly in isolation.
Question 6/15
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Which of the following statements is true about unit tests?

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Unit tests are commonly automated to ensure they can be run frequently and consistently.
Question 7/15
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How often should unit tests be updated?

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Unit tests should be updated whenever there are code changes to make sure the tests remain relevant and accurate.
Question 8/15
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What is a common characteristic of a poorly written unit test?

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A poorly written unit test is typically one that is not easy to read and understand, making it difficult to maintain and trust.
Question 9/15
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Which of the following is NOT a benefit of unit testing?

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Unit testing does not replace manual testing completely; it complements other testing methods but does not eliminate the need for manual testing.
Question 10/15
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What is considered a good practice in unit testing when dealing with exceptions?

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Unit tests should verify that exceptions are thrown correctly and handled properly under conditions where they are expected.
Question 11/15
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Which of the following should be avoided in unit tests?

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Real databases should be avoided in unit tests to ensure the tests remain fast, isolated, and independent of external systems.
Question 12/15
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Which of these is a common challenge associated with unit tests?

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While unit tests are valuable, they can be time-consuming to write initially, especially for complex logic. However, they save time in the long run by catching bugs early.
Question 13/15
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Which of these principles aligns with good unit testing practices?

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In unit testing, tests should be independent to ensure that the failure of one test does not affect others, making debugging easier.
Question 14/15
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When using mocks in unit tests, what is the primary advantage?

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Mocks simulate interactions with dependencies, allowing the unit test to remain focused on the unit itself without involving external systems.
Question 15/15
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When should unit tests be executed?

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Unit tests should be run after every change to the code to catch any new bugs that might have been introduced.