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2.3 Producing Robust Programs
2.3.2 Testing
Understanding how to identify and correct errors
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Cards (33)
Common types of errors in computer programs include syntax, logic, and
runtime
Debugging is the process of finding and fixing errors in a computer
program
Testing is a debugging technique that involves manually reviewing code for errors.
False
To track a variable 'x' in a loop, use `print("x =",
x
)
Version control is the management of changes to documents, computer programs, websites, and other collections of
information
Arrange the key benefits of using version control in the correct order according to the study material.
1️⃣ Traceability
2️⃣ Collaboration
3️⃣ Rollback
Syntax errors occur when the code violates the grammar rules of the
programming language
.
True
Runtime errors are often caught through exception handling.
True
What debugging technique involves manually reviewing code to find errors?
Code walkthrough
Unit testing is particularly effective for identifying and fixing
logic
What happens to the likelihood of errors as code complexity increases?
Increases
Match the error type with its definition:
Syntax Errors ↔️ Errors in the structure or grammar of the code
Logic Errors ↔️ Errors in the logic or algorithm of the program
Runtime Errors ↔️ Errors that occur during program execution
Match the debugging tool with its definition:
Debugger ↔️ A program that allows you to step through code
IDE ↔️ A software suite with debugging tools
Logging ↔️ Recording program events or values
Logging is used to track
program
execution and identify where errors occur.
True
Version control allows you to
collaborate
with others by merging their changes into your work.
True
Version control allows you to track changes made over time and revert to previous versions if needed.
True
Traceability in version control refers to the ability to see who made what changes and
when
What type of error occurs when the program's logic is flawed but the code runs correctly?
Logic error
Match the type of error with its definition:
Syntax Error ↔️ Errors in code structure
Logic Error ↔️ Errors in program algorithm
Runtime Error ↔️ Errors during execution
Effective debugging helps identify and correct syntax, logic, and
runtime errors
.
True
Arrange the key steps to implement unit testing in the correct order.
1️⃣ Identify testable units
2️⃣ Write test cases
3️⃣ Run the tests
4️⃣ Fix the errors
Complex nested loops or recursive functions are difficult to test exhaustively, potentially leading to hidden
errors
Different types of errors require the same debugging techniques to identify and fix.
False
Steps in the debugging technique 'Divide and Conquer':
1️⃣ Split code into smaller segments
2️⃣ Isolate the error source
3️⃣ Fix the error
Steps to apply print statements for debugging:
1️⃣ Identify key points in code
2️⃣ Insert print statements
3️⃣ Run the program
4️⃣ Observe the output
Match the benefit of version control with its description:
Traceability ↔️ Ability to see who made what changes
Collaboration ↔️ Multiple people working on the same project
Rollback ↔️ Revert to previous versions if needed
What is one benefit of using version control in collaboration?
Merge changes with others
Why is effective use of version control crucial for complex projects?
Ensures code integrity
A runtime error occurs during program
execution
A debugger allows you to step through your code line by line and inspect
variables
How can print statements be used as a debugging technique?
Track variable values
Unit testing helps isolate
errors
before they affect the overall system.
True
Thorough testing is essential for ensuring robust and reliable code despite its
complexity
.
True