Logging in Golang test case

Question

I have this:

package utils_test

import (
    "huru/utils"
    "testing"
)

func TestSetFields(t *testing.T) {

    t.Log("dest.Foo")

    src := struct{}{}
    dest := struct{}{}
    utils.SetFields(&src, &dest)

    t.Log("dest.Foo", dest)
}

and I run this command:

go test -run TestSetFields ./src/huru/utils/utils_test.go

all I see this output:

ok      command-line-arguments  (cached)

I can't get any logging output, I tried log.Println and t.Log, to no avail.

"For tests, the text will be printed only if the test fails or the -test.v flag is set." https://golang.org/pkg/testing/#T.Log — Peter, Oct 28 '18 at 06:45
It's also cached, so set the environment variable GOCACHE to off — poy, Oct 28 '18 at 13:22
@poy why this then lol https://stackoverflow.com/questions/53038556/setting-gocache-on-put-a-bunch-of-files-in-the-on-directory-lol — , Oct 29 '18 at 04:13
well using "on" clearly means something - it tells Golang where to put the cache, maybe? — , Oct 29 '18 at 04:14

score 3 · Accepted Answer · answered Oct 28 '18 at 07:54

3

Hope this helps:

go test -v -run TestSetFields ./src/huru/utils/utils_test.go

Here is the answer How do you print in a Go test using the "testing" package?

answered Oct 28 '18 at 07:54

Andrii Soluk

520
1
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thanks so you have to point to the full file path? I was hoping you could just run `go test -v -run TestSetFields` from the base of your project, oh well. – Oct 29 '18 at 03:37
perhaps mention the `-test.v` flag? – Oct 29 '18 at 03:38

Logging in Golang test case

1 Answers1