Is Flutter a Good Tool for Android Development?

I understand correctly that you're saying because testing was not so simple in Android, that's why you didn't focus so much on it. Yes, yes, exactly. And also because I quite often worked with some old code that was written a few years back. And if they didn't write the code with testing in mind, it was later very hard to write tests for thatBecause it was not testable because you got errors. As far as I remember, it was hard to mock things because the code was quite awful to tangle.