<ul><li>Continuous Delivery authors, Jez Humble and David Farley, emphasize the importance of transforming testing into a strategic pillar for reliable software delivery.</li><li>Humble and Farley introduce testing quadrants that structure the testing strategy into four quadrants (Q1, Q2, Q3, Q4), highlighting the significance of addressing all quadrants.</li><li>Shift-left testing is crucial for reducing the cost of bug fixes by integrating testing early in the development cycle, with suggestions like Test-Driven Development (TDD) and Behavior-Driven Development (BDD).</li><li>Aim for 80% code coverage for critical components, use tools like Cucumber or SpecFlow, and implement a test automation pyramid for streamlining testing efforts as suggested by Humble and Farley.</li></ul>

Testing Strategies That Actually Work: How to Build Confidence in Every Release

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