7. Runtime Techniques
The ultimate source of truth regarding a program is its execution. While a program is running, everything comes to light: its correctness, its CPU and memory utilization, even its interactions with buggy libraries, operating systems, and hardware. Yet, typically, this source of truth is also fleeting, rushing into oblivion at the tune of billions of instructions per second. Worse, capturing that truth can be a tricky, tortuous, or downright treacherous affair. Tests, application logs, and monitoring tools allow you to peek into the program’s runtime behavior to locate the bug that’s bothering you.
Item 54: Find the Fault by Constructing a Test Case
You can often pinpoint and even correct a bug simply by working on appropriate ...
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