The book is a great introduction to understand the concepts of Agile testing and Test Driven Development methodology. A lot of good examples were provide in explaining the concepts. The language used is pretty straightforward. Unlike many technical books about programming that’ll either put you to sleep or make you grab your hair, this book does a very decent job in being straight to point. As a newbie to swift programming, this book taught me a lot of new stuff, especially limitations of Swift language when it comes to testing. My only problem is that at times the author missed detail in some examples that may send you scrambling for clues to understand. Apart from that, the book was a delight to read.
A shallow book that only covers some basic introductions. I just read it in less than an hour. Half of the book describes creating projects and files in Xcode or Ubuntu and connecting outlets and the other half some super basic stuff. no architecture or test engineering. The swift codes are also so naive. It's like a ten-years-old's draft. I would never recommend this nonsense.