Software Testing Fundamentals
48 Questions
0 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the primary objective of software testing?

  • To enhance the aesthetic design of a program.
  • To create more software features.
  • To reduce the total cost of software development.
  • To check how well something works. (correct)

Which example illustrates the need for thorough testing?

  • Implementing a new marketing strategy.
  • Conducting a survey to measure customer satisfaction.
  • The Tacoma Narrows Bridge collapse due to inadequate wind testing. (correct)
  • Designing a new logo for a product.

Which of the following types of testing was not mentioned in the overview of software testing?

  • Usability testing. (correct)
  • White box testing.
  • Black box testing.
  • Performance testing.

What would be an example of a software defect?

<p>Errors in user input processing. (A)</p> Signup and view all the answers

Why is it important to validate user input in forms during testing?

<p>To guarantee correct data processing. (D)</p> Signup and view all the answers

What does the term 'black box testing' refer to?

<p>Testing without knowledge of internal code structure. (C)</p> Signup and view all the answers

What is the role of test reports in software testing?

<p>To highlight and address any issues found during testing. (D)</p> Signup and view all the answers

What can be a result of not conducting adequate software testing?

<p>Unforeseen problems in software functionality. (C)</p> Signup and view all the answers

What is a primary advantage of automated testing?

<p>Automated tests can run faster and more efficiently than manual testing. (D)</p> Signup and view all the answers

What is a common disadvantage of automated testing?

<p>Writing the automated tests can be time-consuming and requires technical knowledge. (D)</p> Signup and view all the answers

In what context is automated testing considered black box testing?

<p>When the tests check functionality without seeing the underlying code. (A)</p> Signup and view all the answers

What change must be made in the getSquare function for it to pass the test?

<p>Change the return statement to return <code>num * num</code>. (C)</p> Signup and view all the answers

Why is automated testing considered more consistent than manual testing?

<p>Automated tests are run in the exact same way once created. (B)</p> Signup and view all the answers

What should the software testing team do after detecting defects?

<p>Prepare a report listing all detected defects. (C)</p> Signup and view all the answers

Which of the following is an essential requirement before running automated tests?

<p>Acquiring comprehensive knowledge of software development and programming languages. (B)</p> Signup and view all the answers

What is indicated if an automated test does not show any AssertionError message?

<p>The function being tested has returned the expected result. (D)</p> Signup and view all the answers

What is the primary focus of black box testing?

<p>Evaluating the functionality of the software without knowledge of the internal code. (B)</p> Signup and view all the answers

Which of the following statements about white box testing is true?

<p>It requires knowledge of the internal logic of the code. (B)</p> Signup and view all the answers

Which skill set is most essential for a tester performing white box testing?

<p>Software development knowledge. (A)</p> Signup and view all the answers

What is a key difference between manual and automated black box testing?

<p>Automated testing uses software to simulate user inputs. (D)</p> Signup and view all the answers

What is typically the first step a tester takes in white box testing?

<p>Refer to the requirements document. (C)</p> Signup and view all the answers

What is a common misconception about black box testing?

<p>It can identify the location of a defect in the code. (A)</p> Signup and view all the answers

Which scenario illustrates structural testing effectively?

<p>Disassembling a device to check each internal component. (D)</p> Signup and view all the answers

When performing white box testing, what is an important aspect to test?

<p>The various paths that the code can take during execution. (C)</p> Signup and view all the answers

What output will the code provide if the input is 0?

<p>0 is zero (B)</p> Signup and view all the answers

What is an error that will occur when a non-numeric value is entered?

<p>An error will occur causing the program to halt (B)</p> Signup and view all the answers

What is the primary purpose of automated testing as described?

<p>To enable faster and more precise testing than manual methods (C)</p> Signup and view all the answers

What will happen if a decimal number is inputted into the initial code?

<p>An error will occur because of the invalid input (C)</p> Signup and view all the answers

What is the significance of the assert keyword in the testing function?

<p>It checks that a condition is true and raises an error if false (B)</p> Signup and view all the answers

What value should the function getSquare(num) return when num equals 4?

<p>8 (A)</p> Signup and view all the answers

Which statement accurately describes the behavior of the test function?

<p>It checks if the output of getSquare(4) is 16 and raises an error if not (C)</p> Signup and view all the answers

What would be the correct response for a negative input in the initial code?

<p>It will indicate that the number is a negative number (B)</p> Signup and view all the answers

What is the total number of test cases to be created according to the plan?

<p>16 (D)</p> Signup and view all the answers

What type of inputs should throw an error in the Sub Function?

<p>Two floats (B), An integer and a string (D)</p> Signup and view all the answers

Which keyword is used to create tests in Python according to the document?

<p>assert (B)</p> Signup and view all the answers

What should be verified when testing the Mul and Div functions?

<p>Only whole numbers should provide valid outputs (A), Similar test cases should apply as in the Sub Function (B)</p> Signup and view all the answers

What is the expected error message when invalid inputs are provided?

<p>Error: The calculator can only accept whole numbers (A)</p> Signup and view all the answers

In Python, where should the Expected Result of a test case be defined?

<p>Within the assert statement (A)</p> Signup and view all the answers

What outcome is expected when the test for two floats is executed?

<p>Throws a specified error (D)</p> Signup and view all the answers

What type of number combinations are explicitly tested in the Sub Function?

<p>Two distinct whole numbers and error cases (A)</p> Signup and view all the answers

What is the first set of test data used for the subtract function?

<p>The numbers 2 and 'cat' (D)</p> Signup and view all the answers

What should the assert statement for the second test case look like without the try part?

<p>assert subtract(2, 'cat') raises an error (A)</p> Signup and view all the answers

What conclusion can be drawn if all tests pass?

<p>The function may still have untested edge cases. (C)</p> Signup and view all the answers

What is the expected result when testing the case with data values 62 and 20?

<p>42 (B)</p> Signup and view all the answers

Why is it essential to perform multiple tests on a function?

<p>To detect new defects and address the pesticide paradox (D)</p> Signup and view all the answers

What happens if a new test fails but is written correctly?

<p>It implies the subtract function cannot handle incorrect data types. (C)</p> Signup and view all the answers

What should be included in the code structure when adding a test for the subtract function?

<p>Test data and assertion statements (A)</p> Signup and view all the answers

What is demonstrated by the error message functioning correctly?

<p>Input validation is successfully implemented. (D)</p> Signup and view all the answers

Flashcards

What is software testing?

Software testing focuses on checking how well software works. This includes ensuring functionality, performance, and adherence to requirements.

Why is testing important?

Testing is essential to catch potential issues before software is released. This helps avoid problems for users and reduces costs associated with fixing errors later.

What are software defects?

Software defects are bugs or errors that hinder the software from working as intended. Types include functional failures, performance issues, security vulnerabilities, and usability problems.

Tacoma Narrows Bridge Collapse

The Tacoma Narrows Bridge collapsed due to a lack of wind testing. This highlights how crucial testing is to spot potential issues before they cause major problems.

Signup and view all the flashcards

What is the purpose of software testing?

Software testing is the process of evaluating software to identify defects and ensure quality. It helps improve user experience, reduce development costs, and ensure software meets requirements.

Signup and view all the flashcards

What are the consequences of software defects?

Software defects can lead to several problems, including poor user experience, security breaches, financial losses, and damage to brand reputation.

Signup and view all the flashcards

Black Box Testing

A method to test software by providing input and observing the output, without looking at the internal code.

Signup and view all the flashcards

Manual Black Box Testing

A type of black box testing where a human tester performs the tests manually.

Signup and view all the flashcards

Automated Black Box Testing

A type of black box testing where automated software tools are used to perform the tests.

Signup and view all the flashcards

White Box Testing (Structural Testing)

This testing method focuses on the internal structure and logic of software code.

Signup and view all the flashcards

White Box Test

Code written specifically to test another piece of software.

Signup and view all the flashcards

Path Testing

The ability to test different paths within the software code, exploring all possible execution scenarios.

Signup and view all the flashcards

Component

A part of the software code that can be tested independently, often a specific function.

Signup and view all the flashcards

Requirements Document

Detailed instructions and information that describe how a software system should function.

Signup and view all the flashcards

Automated Testing

A method that uses code to perform a test. Tests can be run automatically and repeatedly, helping find bugs and ensure software works as intended.

Signup and view all the flashcards

Automated Tests

Lines of code that test a specific component of a program for its intended purpose.

Signup and view all the flashcards

Assert in Automated Tests

A keyword used in programming to check if a condition is true or false.

Signup and view all the flashcards

Automated Test Function

A code block that tests a specific function or feature, such as calculating a square value.

Signup and view all the flashcards

Benefits of Automated Testing

A powerful approach for finding and fixing errors early in the development process, ensuring high-quality software.

Signup and view all the flashcards

Software Defect

An error in the code that prevents a program from working as expected.

Signup and view all the flashcards

Role of Automated Testing in Software Quality

Automated tests help catch bugs before they affect real users, by running repeatedly and flagging errors.

Signup and view all the flashcards

String

A type of input that contains only characters (letters, numbers, symbols, etc.)

Signup and view all the flashcards

Assert

A statement used in Python to check if a condition is true. If it's true, the code continues running; otherwise, it throws an error.

Signup and view all the flashcards

Test Steps

A section in a test plan document that lists the steps needed to execute a test case.

Signup and view all the flashcards

Test Plan

A document that outlines how software testing will be performed, covering the scope, methods, and expected outcomes of the testing process.

Signup and view all the flashcards

Test Data

The values used as input for a test to check how a software component behaves under different scenarios.

Signup and view all the flashcards

Expected Result

The anticipated outcome of a test case, based on the given test data and the software's expected behavior.

Signup and view all the flashcards

Prerequisites

The initial conditions or pre-requisites that must be met for a test to be run successfully.

Signup and view all the flashcards

Testing Framework

A framework or structure used in Python to write and run tests for software components.

Signup and view all the flashcards

Pesticide Paradox

The principle that existing tests may not be sufficient to catch all new errors, so new tests are needed.

Signup and view all the flashcards

Test Plan Document

A set of specific instructions that detail how a software system should function.

Signup and view all the flashcards

What is a software defect?

A defect in software is an error or bug that prevents the software from working as intended. It can be a missing feature, wrong behavior, or failing to meet a specific requirement.

Signup and view all the flashcards

What is the main advantage of automated testing?

Automated testing helps speed up and improve the consistency of software testing. It allows running tests repeatedly, eliminating human error and ensuring accuracy.

Signup and view all the flashcards

What is a primary disadvantage of automated testing?

Automated testing requires initial setup time to write test scripts. This investment upfront can save time and effort later on.

Signup and view all the flashcards

Explain automated black box testing.

Automated black box testing checks software functionality without accessing the internal code. It mimics how users would interact with the system.

Signup and view all the flashcards

What does it mean to fix a defect?

Fixing a defect means addressing the error in the code that caused the bug, ensuring the software operates correctly.

Signup and view all the flashcards

Why is software testing important?

Software testing is a crucial part of software development that involves identifying defects and ensuring quality. It helps enhance user experience, lower development costs, and guarantee the software meets requirements.

Signup and view all the flashcards

How do testing and development teams collaborate?

The development team receives a report from the testing team that lists all the discovered software defects. This information is used to improve the code and make the software better.

Signup and view all the flashcards

What happened with the Tacoma Narrows Bridge?

The Tacoma Narrows Bridge collapse was a tragic event caused by a lack of proper wind testing, highlighting the importance of testing for safety and reliability.

Signup and view all the flashcards

Study Notes

Introduction to Software Testing

  • Software testing is a crucial part of ensuring a software product works as required, and produces accurate test reports to identify and solve issues.
  • Understanding testing helps create and implement a test strategy for quality software.
  • The process includes theoretical principles, common software issues, different testing types, and validating user input, as well as practical demonstrations of white-box and black-box testing.

Why Do We Need Testing?

  • Testing is essential to verify that software functions correctly.
  • It helps identify and resolve issues before release, reducing costs and improving user experience.
  • Examples include car safety tests, quizzes, and online forms, where appropriate testing prevents costly failures and maintains user trust.

Types of Software Defects

  • Software errors and bugs impact a product's usability.
  • Errors relate to the core functionality of the software, such as a cancel button not working or a navigation app crashing.
  • Other common issues include not getting correct feedback from the system (e.g., no confirmation email), incorrect calculation results, and control flow errors (skipping or repeating steps incorrectly).

Verification and Validation

  • Verification checks if the software is built correctly, meeting specifications.
  • Validation checks if the correct software has been built to meet user requirements.
  • Verification and validation are crucial activities in the software testing life cycle (STLC).
  • Example: Testing whether a product is correctly registered at a checkout machine is verification. Asking staff if the checkout machine is easy to use is validation.

The Seven Principles of Software Testing

  • Testing shows the presence of defects, not their absence.
  • Exhaustive testing is impossible.
  • Early testing saves time & money.
  • Defects cluster together.
  • Beware of the pesticide paradox (repeating tests becomes less effective).
  • Testing is context-dependent.
  • Absence of errors is a fallacy.

Software Testing Life Cycle (STLC)

  • The STLC outlines the phases involved in the software testing process.
  •   The phases include requirements analysis, test planning, test case development, test environment setup, test execution and test closure.
  • These phases work together as a structured method to ensure software quality and meet client requirements. 

Black-Box and White-Box Testing

  • Black-box testing focuses on user interaction with the software without looking at the code.
  • White-box testing involves analysing the code and testing its internal structures.
  • Both are important for verifying software and detecting defects in different situations.

Manual Testing

  • Manual testing involves interacting with the software as a user would.
  • It's a type of black-box testing technique
  • It is flexible, allows the tester to explore different aspects of the software and discover unexpected issues.
  • It can be time-consuming compared to automated testing

Automated Testing

  • Automated testing uses code to perform tests automatically and repeatedly, which is faster and more precise than manual testing.
  • It is a type of white-box testing; it requires a programmer to write code that directly tests the program's logic.
  • It can simulate user inputs and execute multiple tests at the same time.
  • Is useful for comprehensive testing and helps to ensure correctness.

Measuring Test Coverage

  • Test coverage indicates how much of the software has been tested by the tests.
  • Software testers use two common techniques:  test coverage and code coverage.
  • Both methods are important in different situations
  • Test coverage assesses the number of requirements met and code coverage measures the number of code lines tested/covered.

The Calculator

  • This focuses on building tests for functions within a calculator program.
  • The tests include checking various inputs, including whole numbers and strings, to ascertain correct calculation outcomes and whether errors are returned as expected.
  • The main objective is to catch programming bugs as early as possible.

Test Plan Document

  • The document outlines the objectives, deliverables, and testing strategy to guide testing processes.
  • It's vital for effective testing documentation for software.
  • It should also indicate what will be tested, when and by whom.

Test Cases

  • Test cases define the individual steps to test each part of a piece of software
  • It helps to test the program with many different inputs.
  • Cases should include expected results and comments.

Test Reports

  • A written summary of the testing results
  • It outlines the tests that have been carried out, the status of each test (passed/failed/not run) and comments about any observed issues or errors.
  • It is the final document required for the testing process
  • Test reports are important for delivering feedback to software developers and other relevant stakeholders.

Test-Driven Development

  • Write the tests first, then write the code that makes the tests pass, then refactor and optimize.
  • Red-Green-Refactor methodology is a good testing process to deliver better quality software.
  • Supports development of quality software.

Studying That Suits You

Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

Quiz Team

Related Documents

Software Testing PDF

Description

This quiz covers essential concepts in software testing, including objectives, types, defects, and the roles of automated testing. Understand the importance of validating input and the implications of inadequate testing. Test your knowledge of black box testing and the effectiveness of automated methods.

More Like This

Use Quizgecko on...
Browser
Open
Browser
Browser