I want to share a Flutter package I made. It is called golden_matrix . It helps you write golden tests when your app has many themes, locales, and devices. The problem My app has 5 locales, light and dark themes, and many device sizes. I also need to test different text scales for accessibility. If I want to test one button, I need many golden tests: testGoldens ( 'button - en - light - small phone' , ...); testGoldens ( 'button - en - dark - small phone' , ...); testGoldens ( 'button - ru - light - small phone' , ...); testGoldens ( 'button - ru - dark - small phone' , ...); // ...30 more tests Enter fullscreen mode Exit fullscreen mode This is too much copy-paste. Most people give up and only test one combination. Then bugs come from the combinations they did not test.…