- Setup
golang is opinionated with where the code base should reside, by default $GOPATH is set to ~HOME/go/
- Syntax
- Go programs are written in a
main package with a main() function defined
- Packages are ways to group similar functions together
- Functions are be declared within other functions as variables
- Test file is name
xxx_test.go, test code must start with Test, should only take one argument t *testing.T
- The variable
t of type testing.T give access to methods of the testing framework
- Good practice
- Separate “domain” code from the outside world (side-effects)
- Go docs is well written and maintained, launch with
godoc -http :8000 and visit http://locahost:8000/pkg/
- Use
t.Helper() for the test suite to return the appropriate line number when the test fails
- The typical TOD cycle is:
- Write a test
- Make the compiler pass
- Run the test, see if the test fails
- Write enough code for the test to pass
- Refactor