External Debugger vs Unit Testing

Developers should learn external debuggers when working with low-level systems, embedded devices, or complex applications where traditional IDE debugging tools are unavailable or inadequate meets developers should learn and use unit testing to catch defects early, reduce debugging time, and facilitate code refactoring without breaking existing functionality. Here's our take.

External Debugger

Nice Pick

Developers should learn external debuggers when working with low-level systems, embedded devices, or complex applications where traditional IDE debugging tools are unavailable or inadequate

Pros

• They are essential for debugging crashes, memory leaks, and performance issues in native code, such as C/C++ programs, kernel modules, or multi-process systems, providing deeper insights into runtime behavior
• Related to: gdb, lldb

Cons

• Specific tradeoffs depend on your use case

Unit Testing

Developers should learn and use unit testing to catch defects early, reduce debugging time, and facilitate code refactoring without breaking existing functionality

Pros

• It is essential in agile and test-driven development (TDD) environments, where tests are written before the code to guide design and ensure quality
• Related to: test-driven-development, integration-testing

Cons

• Specific tradeoffs depend on your use case

The Verdict

These tools serve different purposes. External Debugger is a tool while Unit Testing is a methodology. We picked External Debugger based on overall popularity, but your choice depends on what you're building.

The Bottom Line

External Debugger wins

Based on overall popularity. External Debugger is more widely used, but Unit Testing excels in its own space.