Understanding Unit Testing Quiz

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Question 1/15

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

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Question 2/15

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

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Question 3/15

Which statement is true about the test-driven development (TDD) approach?

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Question 4/15

When should unit tests be executed?

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Question 5/15

What trait is NOT desirable for a unit test?

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Question 6/15

Which of the following best describes a 'unit' in unit testing?

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Question 7/15

Why is unit testing important?

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Question 8/15

Which of these could be considered a best practice for writing unit tests?

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Question 9/15

What role does 'assertion' play in a unit test?

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Question 10/15

In a well-written unit test, what should the test focus on?

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Question 11/15

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

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Question 12/15

In terms of unit testing, what does DRY stand for?

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Question 13/15

What tool is commonly used for unit testing in Java?

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Question 14/15

What is code coverage in relation to unit testing?

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Question 15/15

In unit testing, which of these is typically tested?

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Question 1/15
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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 2/15
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What is considered a good practice in unit testing when dealing with exceptions?

Available answers

Unit tests should verify that exceptions are thrown correctly and handled properly under conditions where they are expected.
Question 3/15
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Which statement is true about the test-driven development (TDD) approach?

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TDD involves writing tests before writing the actual code, guiding the development process to ensure each unit behaves as expected.
Question 4/15
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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.
Question 5/15
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What trait is NOT desirable for a unit test?

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Unit tests should be isolated and not depend on external systems, ensuring they test only the intended unit of code.
Question 6/15
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Which of the following best describes a 'unit' in unit testing?

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In unit testing, a 'unit' typically refers to a small part of the code such as a single function, method, or class.
Question 7/15
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Why is unit testing important?

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Unit testing is important because it helps find bugs early in the development process, reducing the cost and effort needed to fix them.
Question 8/15
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Which of these could be considered a best practice for writing unit tests?

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Starting with simple tests helps ensure basic functionality, and as the application evolves, more complex test cases can be added.
Question 9/15
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What role does 'assertion' play in a unit test?

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An assertion in a unit test checks if certain conditions are met. If an assertion fails, the test fails.
Question 10/15
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In a well-written unit test, what should the test focus on?

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A well-written unit test should focus on testing a small, isolated part of the code, such as a function or method, independently from other parts.
Question 11/15
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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 12/15
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In terms of unit testing, what does DRY stand for?

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DRY, or Don't Repeat Yourself, is a principle that encourages reducing repetition to make tests easier to maintain and understand.
Question 13/15
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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 14/15
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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 15/15
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In unit testing, which of these is typically tested?

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Unit testing focuses on the smallest parts of the system, such as individual functions or methods, in isolation from other parts.