The testing package documentation mentions this case explicitly: https://pkg.go.dev/testing#hdr-Main
In short, you can define a main function (called TestMain) for your test package and call flag.Parse from there. On Saturday, May 6, 2023 at 4:03:59 PM UTC-4 Robert Solomon wrote: > A related issue: > Now that I can run go test and it's running, how do I define the flag. > Currently, I define it in main(), and also the flag.Parse() is in main(). > But main() is not run in go test, so I tried putting flag.BoolVar() and > flag.Parse() in an init() function, but that doesn''t work either. > > How do I test the operations of the flag package when running go test? > > > > On Saturday, May 6, 2023 at 3:45:10 PM UTC-4 Robert Solomon wrote: > >> Looks like I didn't copy everything I have to the playground. But I do >> have the correct imports and the top statement, package main. >> >> Thank you for answering, that's working. >> >> --rob solomon >> >> >> On Saturday, May 6, 2023 at 11:24:11 AM UTC-4 Brian Candler wrote: >> >>> Your code is incomplete (it's missing all the imports), and "go test" >>> doesn't run your main() function anyway, so it's not going to parse the >>> flags. >>> >>> But otherwise I think it would be something like this: (single dash, >>> -args not --args) >>> >>> go test . -v -args - -dots >>> >>> https://go.dev/play/p/HFJBO1j54iE >>> >>> On Saturday, 6 May 2023 at 14:02:35 UTC+1 Robert Solomon wrote: >>> >>>> >>>> I have a routine that I want to test, that I have to pass a flag into >>>> this test. This is on Win10 using Go 1.20.4. This code is here: >>>> https://go.dev/play/p/p-YeGDk1KaM >>>> >>>> I want to pass a flag I call dots into the test code for this >>>> function. I tried from within the correct directory >>>> >>>> go test --args -dots >>>> or >>>> go test . --args -dots >>>> >>>> Or from the top of my source tree where the go.mod file is : >>>> >>>> go test .\detox --args -dots >>>> go test .\detox\... --args -dots >>>> >>>> I get an error message saying: >>>> >>>> flag provided but not defined: -dots. >>>> >>>> But that flag does show up when I run the program using the -h flag, >>>> and it works when not in go test mode. >>>> The full pgm is in the link above. >>>> >>>> What am I missing? >>>> >>>> --rob solomon >>>> >>>> PS: a stackoverflow question that's similar to this, from 2014, does >>>> not work for me. >>>> >>>> -- You received this message because you are subscribed to the Google Groups "golang-nuts" group. To unsubscribe from this group and stop receiving emails from it, send an email to golang-nuts+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/golang-nuts/918eb03b-b8e3-49c3-9fa5-44bb1bb91e59n%40googlegroups.com.
