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Questions and Answers
What is the primary goal of software testing?
What is the primary goal of software testing?
Which type of testing focuses on individual subsystems and is typically performed by developers?
Which type of testing focuses on individual subsystems and is typically performed by developers?
What does system testing primarily determine?
What does system testing primarily determine?
What is the role of acceptance testing?
What is the role of acceptance testing?
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What is one important aspect of testing related to specifications?
What is one important aspect of testing related to specifications?
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What is the primary goal of implementing a system on a trial basis?
What is the primary goal of implementing a system on a trial basis?
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What does black-box testing primarily focus on?
What does black-box testing primarily focus on?
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Which type of analysis involves reading source code and checking for errors?
Which type of analysis involves reading source code and checking for errors?
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What approach is typically used in static analysis to ensure quality?
What approach is typically used in static analysis to ensure quality?
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How does equivalence partitioning help in black-box testing?
How does equivalence partitioning help in black-box testing?
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Which of the following statements about dynamic analysis is true?
Which of the following statements about dynamic analysis is true?
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What is a characteristic of unit testing?
What is a characteristic of unit testing?
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Which of the following describes a limitation of black-box testing?
Which of the following describes a limitation of black-box testing?
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What will the program print if no scores are found in the ScoreFile?
What will the program print if no scores are found in the ScoreFile?
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In the logic flow diagram, what does 'F' signify in the branching paths?
In the logic flow diagram, what does 'F' signify in the branching paths?
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What must be true for the path to continue past node 2 in the flow diagram?
What must be true for the path to continue past node 2 in the flow diagram?
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Which of the following is a key characteristic of white-box testing?
Which of the following is a key characteristic of white-box testing?
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What type of path does the flow of the program take if a score file is empty?
What type of path does the flow of the program take if a score file is empty?
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In determining test cases, what condition checks for negative scores?
In determining test cases, what condition checks for negative scores?
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What does the term 'extreme testing' imply in the context of testing methods?
What does the term 'extreme testing' imply in the context of testing methods?
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What must the program do when encountering a positive score while reading the ScoreFile?
What must the program do when encountering a positive score while reading the ScoreFile?
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Why is white-box testing considered necessary alongside black-box testing?
Why is white-box testing considered necessary alongside black-box testing?
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Which step occurs after reading a score in the loop until EOF?
Which step occurs after reading a score in the loop until EOF?
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What does an oracle in software testing contain?
What does an oracle in software testing contain?
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Which type of testing focuses on examining the functionality of the software without looking at the internal workings?
Which type of testing focuses on examining the functionality of the software without looking at the internal workings?
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What is a key feature of unit testing?
What is a key feature of unit testing?
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Which testing strategy is primarily focused on large-scale integration of system components?
Which testing strategy is primarily focused on large-scale integration of system components?
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What should a secure programming strategy include regarding testing?
What should a secure programming strategy include regarding testing?
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What is the purpose of proofs in the context of software testing?
What is the purpose of proofs in the context of software testing?
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Which of the following is NOT a type of testing mentioned?
Which of the following is NOT a type of testing mentioned?
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What does code inspection primarily focus on?
What does code inspection primarily focus on?
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What is the primary goal when developing test cases?
What is the primary goal when developing test cases?
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What should be done every time a change is made?
What should be done every time a change is made?
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What is a common challenge in regression testing?
What is a common challenge in regression testing?
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What is essential for ensuring no duplication in test cases?
What is essential for ensuring no duplication in test cases?
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What should be compared to assess the success of test execution?
What should be compared to assess the success of test execution?
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Why is covering multiple paths important in testing?
Why is covering multiple paths important in testing?
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How can test cases be executed efficiently?
How can test cases be executed efficiently?
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What is a significant consequence of insufficient regression testing?
What is a significant consequence of insufficient regression testing?
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What does white-box testing primarily focus on?
What does white-box testing primarily focus on?
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Which of the following is a limitation of black-box testing?
Which of the following is a limitation of black-box testing?
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What must be selected first in the four steps of testing?
What must be selected first in the four steps of testing?
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In the context of black-box testing, what does 'combinatorial explosion' refer to?
In the context of black-box testing, what does 'combinatorial explosion' refer to?
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Why might white-box testing fail to detect certain errors?
Why might white-box testing fail to detect certain errors?
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Which of the following statements about test cases is true?
Which of the following statements about test cases is true?
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What is a critical aspect of developing test cases?
What is a critical aspect of developing test cases?
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What does the analysis phase of testing typically assess?
What does the analysis phase of testing typically assess?
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Which aspect is NOT considered in black-box testing?
Which aspect is NOT considered in black-box testing?
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What is a key focus area for black-box testing?
What is a key focus area for black-box testing?
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Study Notes
Secure Programming
- Course Instructor: Dr. Haroon Mahmood
- Institution: Al-Ain University, UAE
Outline
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What is testing?: Includes why testing is performed
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Testing Standards: Specifications for behavior and quality
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Selecting Good Tests: Methods like functional (black-box) and structural (white-box) testing
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Assessing Test Suites: Testing techniques including coverage, mutation, capture/recapture
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Effective Testing Practices: Different testing levels (unit, integration, system) along with lifecycle and metrics integration
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Limits of Testing: Discusses complementary approaches, inspections, static and dynamic analysis
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Software Testing: Direct execution of code on test data within a controlled environment
- Goals of testing: revealing failures, assessing quality, clarifying specifications, learning about the program, and verifying contracts.
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Specification: Contains functional behavior, erroneous behavior, and quality attributes. Desirable attributes include completeness, minimal, unambiguous, consistent, testable, correct, and representing end-user needs.
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Types of Testing:
- Unit Testing: Individual subsystems, performed by developers to verify functionality.
- Integration Testing: Testing interactions between subsystems (classes), leading to complete system testing.
- System Testing: The entire system is tested to ensure it meets required functionalities and global requirements. Terminology: System testing = validation testing
- Acceptance Testing: The system is evaluated by the client, may involve trial transactions, and ensures it meets customer needs. Two kinds of Acceptance Testing.
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Unit Testing:
- Informal: Incremental coding with "write a little, test a little" approach.
- Static Analysis: Reading the source code, walk-throughs, and code inspections using automated tools for errors.
- Dynamic Analysis: Black-box testing (input/output behavior), white-box testing (internal logic), and data-structure based testing.
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Black-box Testing:
- Focus: input/output behavior (predicting output for an input).
- Goal: Reduce test cases
- Equivalence Partitioning: Divides input conditions into classes
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Continues blackbox testing:
- Equivalence class selection (no rules, only guidelines) – inputs are valid across a range of values—select test cases below, within, and above the range; also input is valid discrete value.
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Black-box Testing (Continued):
- Solutions to select limited amount of test cases
- Another method of selecting cases: understanding the inner workings of the unit being tested (white-box testing)
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Types of black-box testing:
- Requirements based, Positive/negative, Good/bad results, Boundary value analysis, decision tables, equivalence partitioning, state-based diagrams (based on object), compatibility testing, user documentation testing, and domain testing.
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White-box Testing:
- Focus: Thoroughness (coverage). Every statement is executed at least once.
- Four types include statement, loop, path, and branch testing.
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White-box Testing (Continued)
- Statement testing: test single statements.
- Loop testing: executing loops completely, exactly once, or more than once.
- Path testing: verifying all paths in a program are executed.
- Branch testing: making sure all outcomes from conditions are tested.
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Example of white-box testing:
- A programming example, showing how code works, and how to create a flow-chart for it
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Constructing the Logic Flow: Flow charts of logic and branching.
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Finding the Test Cases: How to create test cases based on a logical flow-chart
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Comparison of White & Black Box Testing:
- Both are necessary. -White-box testing focuses on the internal structures and paths, potentially missed scenarios; black-box testing focuses on the inputs and outputs, may not find every error -White-box is often more difficult; black-box often has more test cases
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The 4 Testing Steps: Selecting what to measure (analysis, completeness, design, and implementation of code tests); deciding on testing methods (code inspection, proofs, etc.); developing test cases; and creating the test oracles (prediction of results).
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Unit-testing Heuristics: Creating, verifying, and checking for duplicates
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Description
This quiz covers essential concepts in secure programming focusing on various testing methods. You will learn about testing standards, the significance of selecting effective tests, and the assessment of test suites. Delve into the limits of testing and explore software testing practices crucial for ensuring code quality.
