Tags » golang

Quick-and-dirty print debugging in Go

I wrote a Go module to help with my print debugging, which logs expressions and values to a separate file.

TIL: Use the -v flag to get verbose output from Go tests

This prints all t.Log and t.Logf calls, even if the test succeeds or times out.

TIL: Using Go to write to a file, but only if it doesn’t exist yet

Opening a file with os.O_CREATE|os.O_EXCL will ensure you only create the file if it doesn’t already exist.

TIL: Repeatedly run flaky Go tests with stress

It runs your test hundreds of times, which can be useful for finding flaky failures.

TIL: How to list the tests that will be run by a go test command

Use go test -list={pattern}.

TIL: You can change the size of tabs on web pages with the tab-size property

TIL: Go’s compiler is smart enough to spot division by zero errors

TIL: Parsing JSON in Go with a required field

Finding SNS topics without any subscriptions

I’m trying out Go, and I wrote a tool to help me find SNS topics that don’t have any subscriptions.