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AP Computer Science Principles
Big Idea 3: Algorithms and Programming
3.6 Debugging and Testing
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The purpose of debugging is to verify code correctness and performance.
False
Match the error type with its description:
Syntax Error ↔️ Violates grammar rules
Logic Error ↔️ Incorrect reasoning
Runtime Error ↔️ Occurs during execution
Testing verifies that code behaves as expected under different conditions.
True
What type of error occurs when code violates the programming language's grammar?
Syntax error
What is the primary focus of unit testing?
Testing individual units
What are the three main types of programming errors?
Syntax, Logic, Runtime
What happens during a runtime error?
Program crashes or behaves unpredictably
What does unit testing verify?
Individual code units
Steps for writing and running unit tests
1️⃣ Choose a unit testing framework
2️⃣ Write test cases
3️⃣ Use assertion functions
4️⃣ Run the tests
What are the three categories of bugs in programming?
Syntax, Logic, Runtime
What is code review useful for in debugging?
Catching obvious mistakes
What is the primary purpose of debugging in programming?
Fixing errors
What is the goal of testing in programming?
Verify code behavior
Division by zero is an example of a
runtime
error.
Debugging focuses on finding and fixing specific
errors
Match the error type with its example:
Syntax Error ↔️ Missing semicolon
Logic Error ↔️ Incorrect loop condition
Runtime Error ↔️ Division by zero
Integration testing verifies the interaction between different
units of code
.
True
Syntax errors occur when the code violates the programming language's
rules
Match the debugging technique with its description:
Print Statements ↔️ Output variable values or program flow
Debugger ↔️ Step through code line by line
What does integration testing ensure?
Units work together correctly
Which unit testing framework is commonly used for Python?
pytest
Inserting
print
statements is a debugging technique called tracing.
Tracing code involves inserting
print
statements at key points to monitor variable values and execution flow.
Match the debugging strategy with its description:
Code Review ↔️ Reviewing the code for errors
Tracing ↔️ Using print statements to track variable values
Debugger ↔️ Stepping through code line by line
Debugging tools are used to identify the
root causes
of issues in code.
True
Match the type of error with its description:
Syntax Error ↔️ Violation of language grammar
Logic Error ↔️ Incorrect algorithm behavior
Runtime Error ↔️ Error during program execution
In Python, the `pdb` module is used to set a
breakpoint
in code for debugging.
In unit testing, assertion functions are used to verify if the actual output matches the
expected
output.
Code review is useful for catching obvious mistakes and improving code
clarity
A debugger allows programmers to step through code line by line and examine
variables
What are the three categories of bugs in programming?
Syntax, logic, runtime
What is the purpose of branching in source control systems?
Experiment with new features
Debugging and testing ensure code quality and
reliability
Debugging involves tracing code flow using debug
tools
Steps for debugging using print statements:
1️⃣ Insert print statements at strategic points
2️⃣ Execute the code
3️⃣ Analyze the output
4️⃣ Identify the error location
5️⃣ Fix the bug
Debuggers allow you to step through code and inspect
values
.
The objective of integration testing is to ensure units work
together
.
Logic errors result from incorrect reasoning or
algorithms
in the code.
True
A debugger allows you to set
breakpoints
Unit testing and integration testing complement each other to improve
code reliability
.
True
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