This book is for absolute beginners. Familarity with any other programming language is expected.
Following is a map of Chapter name and what topics they cover.
-
Hello, World: Basic syntax, introduction to writing tests in Go.
-
Integers: Documentation, example test/documentation.
-
Iteration: For loops, benchmarks.
-
Arrays and slices: Arrays, slices, len, test coverage.
-
Structs, methods & interfaces: Structs, methods & interfaces and how are they used together.
-
Pointers & errors: Pointers (copy by reference vs copy by value). Errors.
nil. -
Maps: Maps (dictionaries), basic CRUD.
-
Dependency Injection: Prerequisite to next chapter (mocking).
-
Mocking: Test the behavior, not implementation. Don't rely on blocking resources, mimic them.
-
Concurrency: go routines, channels, race contidions, . Make it work, make it right, make it fast.
-
Select: Syntax sugar related to concurrency. Listen to multiple channels at once in a syntax similar to switch.
-
Reflection: Go's internal datatypes.
-
Sync: Supplement to concurrency. WaitGroups, Mutexes. A WaitGroup waits for a collection of goroutines to finish. A Mutex is a mutual exclusion lock. The zero value for a Mutex is an unlocked mutex.
-
Context:
The book can be found at https://quii.gitbook.io/learn-go-with-tests/. If that link is dead, head over to wayback machine https://web.archive.org/web/20200110162028/https://quii.gitbook.io/learn-go-with-tests/