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What are the testing basics?

Excellent one!
The testing basics are basic tenets that guide the testers as to how to test and why testing is done. These were formulated by the ISTQB (International Software Testing Qualifications Board) and are universally adopted in the software sector.
7 Software Testing Basics
1. Testing Reveals the Existence of Defects, Not Their Absence
Testing can reveal defects, but it cannot prove that the software is 100% bug-free.
Even after thorough testing, there may still be undiscovered defects.
Example: You can test an app and find no errors — but that doesn’t mean none exist; maybe you just didn’t test the right conditions.
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