go test - skip one test

[sundar.v...@gmail.com]

Hello,

I’m trying to skip one test with the "go test" command. 

I found that it is easy to run only one test using the -run option (go test -run="Test_function_that_I_want_to_run")

How to skip only one function (go test -run="!Do_not_run_this_function") => does not seem to do the trick.

Any help

Thanks

Sundar

[Fatih Arslan]

By adding "SkipNow()" inside the test function:
http://golang.org/pkg/testing/#T.SkipNow

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[sundar.v...@gmail.com]

Thanks.. But I don’t want to modify the code.

I see from the help that -run supports regular expression.

" -run regexp

   Run only those tests and examples matching the regular

   expression.

"

 Hence wanted to see if I can find a way to do that from command line.

[Dave Cheney]

Interestingly this is the second request for this feature in the last two weeks - but for five years prior to that, zip.

If you could skip a test from the cli,  what would that enable you to do ?

[Fatih Arslan]

You are right. What you can do is defining a flag yourself and doing
the skipping automatically based on the flag name. I've just tested it
and it works. Note that this is experimental and just a proof of
concept:

main.go: http://play.golang.org/p/B93z1q1hrT
main_test.go: http://play.golang.org/p/OuXCiJOuv3

Example outputs:

demo ❯ go test
Running TestA
Running TestB
PASS
ok _/Users/fatih/demo 0.004s

demo ❯ go test -skipTest "TestB"
Running TestA
PASS
ok _/Users/fatih/demo 0.004s

[Michael Banzon]

You could use build tags[1]. Put the test you want to be able to skip in a file and guard the file with the build tag.

[1] http://golang.org/pkg/go/build/

[sundar.v...@gmail.com]

Hello Dave,

I have two binaries - a consumer and a server. I validate consumer and then it also populates the DB. Then I test the server, in which there is a test for checking if deleting an entry in the test works. I want to avoid running this "delete" test alone during development, because, if I run this test alone, then every time I have to repopulate the database freshly for again testing the "server".

I could add a flag, as suggested by Fatih, however, if an option using the "-run" works, it would be much more cleaner.

Thanks,

Sundar

[Dave Cheney]

This sounds like you're solving the wrong problem. You want a flag to avoid running the test that deletes some information from a shared database. It sounds like you should add code that populates your database to a known state before each test run.

[Matthew Zimmerman]

I've wanted this feature before too.  Usually I'd use it when one of my tests starts panic'ing (then other tests don't run). In debugging the panic, I'll often notice that it's a more specific test that I want to validate as working before diagnosing the larger (panic'ing) test.  So often, I've wanted to validate that the rest of the tests are passing before addressing the panic.

--

[Dave Cheney]

I see these examples, but I'm unconvinced in general that this -runnot flag pays for itself over the cost of documenting and describing the interactions with -run. It seems there are always more appropriate or simpler solutions to achieve the same result.

I don't know if you were redirects here after trying to raise this on the issue tracker, but in the case that you haven't, you could try raising a request for this on the issue tracker.

Dave

[Jan Mercl]

On Thu, Apr 23, 2015 at 1:41 PM <sundar.v...@gmail.com> wrote:

> I found that it is easy to run only one test using the -run option (go test -

> run="Test_function_that_I_want_to_run")

> How to skip only one function (go test -run="!Do_not_run_this_function") 

> => does not seem to do the trick.

Use the -run option again, ie. simply write a regexp which does not accept the test(s) you don't want to run. For example, if I would need to run all test of cznic/b except for TestDelete*:

jnml@4670:~$ cd $GOPATH/src/github.com/cznic/b

jnml@4670:~/src/github.com/cznic/b$ go test -v -run Test[^D]

-j