Self introduction,What is Test Cases,What is Bug,What is Regression Testing.

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Test cases are scenarios designed to test software functionality. Bugs are defects in software. Regression testing is retesting after changes.

Test cases are written to ensure that software meets requirements and functions as expected.
Bugs are defects or errors in software that cause it to behave unexpectedly or not as intended.
Regression testing is the process of retesting software after changes have been made to ensure that existing functionality has not been affected.
Regression testing is important to ensure that changes made to software do not introduce new bugs or break existing functionality.

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