Testing
Adopt the Newest Go Testing Features in an Old Codebase
Adopt newer Go testing features in an old codebase: t.Context, t.Chdir, b.Loop, t.Attr, t.Output and testing/synctest, with the go.mod rules that gate each.
7 min read
Tag
migration
6 articles
Testing
Migrate From Testify Suites to the Standard Library
Move testify suites to plain Go tests: TestMain for suite hooks, a helper plus t.Cleanup for SetupTest, subtests for methods. Both versions run, order shown.
7 min read
Testing
Remove Testify From a Project and Use the Standard Library
Remove testify from a Go project in steps: map assert and require calls to if statements, keep go-cmp for diffs, convert mocks to fakes and drop the module.
7 min read
Concurrency
Replace Mutex Guarded Values With Typed Atomics in Go
When a mutex around a single value can become atomic.Int64, atomic.Bool or atomic.Pointer, with before and after code and a read-heavy benchmark.
8 min read
APIs
Migrate a Go API From Gin to the Standard Library Mux
Move a Gin API to net/http route by route, using a parity test that finds the real differences: 405 versus 404 and trailing slashes.
10 min read
Concurrency
Modernize Old Go Concurrency Code for Newer Releases
Update old Go concurrency idioms to current ones, with before and after code that gives the same result: WaitGroup.Go, typed atomics, OnceValue.
7 min read