How does the "sandwich" approach of integration testing combine different methodologies?

  • Combines black-box and white-box testing
  • Combines regression and smoke testing
  • Combines top-down and bottom-up integration
  • Combines unit and system testing
The "sandwich" approach of integration testing merges both top-down and bottom-up methods. It allows simultaneous testing of the top and lower ends of software, ensuring quicker detection of interface errors throughout different levels of the application.
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