Essential Concepts of Code Coverage: Purpose and Benefits Quiz

1. Definition of Code Coverage

   Which statement best describes code coverage in software testing?

   1. Code coverage measures the percentage of source code executed during testing.
   2. Code coverage counts the total number of test cases created.
   3. Code coverage refers to the number of developers writing code.
   4. Code coverage is the process of fixing software bugs.
   5. Code coverage calculates the runtime of a test suite.

2. Purpose of Code Coverage

   What is one main purpose of using code coverage metrics in test automation?

   1. To ensure that most parts of the code are exercised by tests.
   2. To track code compilation errors.
   3. To generate user documentation.
   4. To speed up the deployment process.
   5. To estimate the popularity of a software application.

3. Types of Code Coverage

   If a team is interested in knowing which individual lines in a program were tested, what type of code coverage are they likely using?

   1. Line coverage
   2. Function coversage
   3. Class coverage
   4. Path converage
   5. Object covergage

4. Benefits for Code Quality

   How does code coverage help improve the overall quality of software?

   1. By highlighting untested and potentially risky areas in the codebase.
   2. By automatically removing unused code.
   3. By rewriting code to be more efficient.
   4. By managing the software release schedule.
   5. By generating user interface designs.

5. Interpreting Coverage Results

   If a project shows 75% code coverage, what does this number indicate?

   1. Tests have executed 75% of the code statements.
   2. The tests will always pass with 75% probability.
   3. 75% of the tests failed.
   4. Only 75% of code is written.
   5. The code runs 75% faster than before.

6. Limitations of High Coverage

   Why does achieving 100% code coverage not necessarily mean the code is free of bugs?

   1. Code can still have logic errors not caught by existing tests.
   2. All code at 100% coverage is always correct.
   3. Tests with 100% coverage never need updating.
   4. It means no more code changes are required.
   5. High coverage removes the need for human review.

7. Branch Coverage Purpose

   When is branch coverage particularly helpful in testing software?

   1. When ensuring every possible decision path, like if/else statements, is tested.
   2. When counting the number of source files in the project.
   3. When documenting all the functions in code.
   4. When optimizing database queries.
   5. When rewriting code into another programming language.

8. Code Coverage and Testing Gaps

   A module with low code coverage is likely to indicate what about its tests?

   1. Some important code paths have not been tested.
   2. All bugs in that module are fixed.
   3. It contains only comment lines.
   4. It has more developers assigned to it.
   5. It is automatically documented.

9. Comparing Coverage Metrics

   Which of the following code coverage metrics specifically measures whether every possible outcome of a decision in the code has been tested?

   1. Branch coverage
   2. Object coverage
   3. Lint coverege
   4. Class converage
   5. Syntax coverege

10. Best Practices for Code Coverage

    What is generally recommended after analyzing your code coverage report?

    1. Add additional tests to cover gaps identified in the report.
    2. Delete all existing tests and start over.
    3. Ignore uncovered code as it is unimportant.
    4. Increase the number of comments in the code.
    5. Upload the report to an unrelated project.