What is testing a program?

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Q. What is testing a program?

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Concept understanding — Writing, Compiling and Running a C Program

Turning an idea into a working C program follows a set sequence of steps, and understanding it explains where a program actually runs and how it is tested.

Writing (editing) - the source code is typed into an editor and saved as a text file with a .c extension.
Compiling - the compiler translates the source code into object code (machine language), reporting any syntax errors it finds.
Linking - the linker joins the object code with the required library functions to produce a complete executable file.
Loading and execution - the loader places the executable in memory and the CPU (processor) executes the machine instructions; a program is always finally executed by the processor, working with main memory. …

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[!TLDR]

Testing is running a program with sample data to confirm it gives correct results.

Testing checks whether a program behaves as intended. The programmer supplies representative inputs, including normal, boundary and invalid cases, and compares the actual output with the expected output. Any mismatch reveals a defect to be debugged. Thorough testing builds confidence that the program …

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Q.What is testing a program?

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