Static Unit Testing Preparation Step 2: Code Review

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What types of system documents are generated by the engineering department?

Requirement, Functional Specification, High-level Design, Low-level Design, Code

What are some steps to prevent defects in code?

Build clean code, Use standard control, Validate input data, Provide error messages from a common source, Use assertions

What are some metrics that can be collected from a code review?

LOC/Hr, CRs/Hr, CRs/KLOC, KHr

Why is it important to handle counter data fields and buffer overflow/underflow appropriately?

To prevent potential vulnerabilities and ensure data integrity Signup and view all the answers

What is the purpose of using assertions in code?

To detect impossible conditions Signup and view all the answers

How can standard control help in detecting possible error conditions?

By detecting occurrences like dividing by zero and array index out of bounds Signup and view all the answers

What is the purpose of a test driver in dynamic unit testing?

A test driver is a program that invokes the unit under test, provides input data, and reports the test result. Signup and view all the answers

Define stubs in the context of dynamic unit testing.

Stubs are dummy programs that emulate the units called by the unit under test. Signup and view all the answers

What is the purpose of scaffolding in dynamic unit testing?

Scaffolding refers to the combination of the test driver and stubs. Signup and view all the answers

What does the low-level design document provide guidance on in dynamic unit testing?

The low-level design document provides guidance on the selection of input test data. Signup and view all the answers

Why is it important to include a loop counter within each loop in dynamic unit testing?

Including a loop counter helps in tracking the iterations of the loop and ensures proper testing. Signup and view all the answers

What are the different team roles involved in the code review process?

Moderator, Author, Presenter, Record keeper, Reviewers, Observer Signup and view all the answers

During the Preparation step of code review, what are some of the questions reviewers develop?

Does the code do what has been specified? Does the procedure solve the problem correctly? Does a software module duplicate another existing module? Signup and view all the answers

What is the purpose of Potential Change Request (CR) in the code review process?

To suggest change requests rather than defect reports. Signup and view all the answers

What is the role of the Moderator during the Examination step of code review?

To ensure the review is on track. Signup and view all the answers

What is done at the end of the code review meeting, as part of the Re-work step?

The record keeper produces a summary of the meeting. Signup and view all the answers

What details are included in a Change Request (CR) according to the text?

Brief description of the issue, Priority level, Assigned person, Deadline for addressing Signup and view all the answers

What is control flow testing and how is it performed?

Control flow testing involves drawing a control flow graph, selecting criteria, identifying a path, deriving a path predicate expression, and generating test data. Signup and view all the answers

How is data flow testing different from control flow testing?

Data flow testing is similar to control flow testing but focuses on the data flow within a program unit. Signup and view all the answers

What is domain testing and why is it important?

Domain testing involves defining domain errors and selecting test data to catch those faults. Signup and view all the answers

Explain mutation testing and its purpose.

Mutation testing is a way to measure test case quality and is used to supplement traditional unit testing techniques. Signup and view all the answers

When is a mutant considered 'killed' or 'dead' in mutation testing?

A mutant is considered killed/dead when the execution of a test case causes it to fail. Signup and view all the answers

What is the purpose of functional program testing?

Functional program testing defines input/output domains to compute input values that produce expected output values. Signup and view all the answers

What is the formula to calculate the mutation score for a set of test cases T?

Mutation score = 100×D/(N −E) Signup and view all the answers

If the estimated mutation adequacy of T is not sufficiently high in step 5, what should be done?

Design a new test case that distinguishes Pi from P, add it to T, and go to step 2. Signup and view all the answers

What are the two major assumptions made in mutation testing?

Competent Programmer hypothesis and Coupling effects Signup and view all the answers

What is the purpose of debugging?

The purpose of debugging is to isolate and determine the specific cause of a failure. Signup and view all the answers

What are the three approaches to debugging mentioned in the text?

Brute force, Induction Deduction, Backtracking Signup and view all the answers

When should a set of test cases T be accepted as a good measure of the correctness of P with respect to the set of mutant programs Pi?

When the computed adequacy of T is more than an appropriate threshold. Signup and view all the answers