This can also be done without an interface: https://play.golang.org/p/fgRX2nXIxn0
In ^ example “Thing” would be the type you are working on, with functional options (https://dave.cheney.net/2014/10/17/functional-options-for-friendly-apis <https://dave.cheney.net/2014/10/17/functional-options-for-friendly-apis>), and defaults to using os.Hostname. PS: Use whichever method works for you, this is just my opinions. > On Aug 1, 2019, at 6:46 AM, Kyle Butz <kyleb...@gmail.com> wrote: > > You'll want to look into gomock and mockgen. To get started mocking, you'll > need an interface, so maybe writing a receiver function encapsulating > os.Hostname(), then consuming that with an interface. > > type OsClient struct {} > > func (o *OsClient) GetOSHostname() (string, error) { return os.Hostname() } > > type HostnameGetter interface { GetOSHostname() (string, error) } > > Gomock repo w/ documentation: https://github.com/golang/mock > > Nice intros to gomock: > - https://blog.codecentric.de/en/2017/08/gomock-tutorial/ > - https://www.philosophicalhacker.com/post/getting-started-with-gomock/ > > Note to the mods: I accidentally posted this from the wrong, unverified > account first > > On Thursday, August 1, 2019 at 7:09:54 AM UTC-5, Nitish Saboo wrote: > Hi, > > How can we mock a function in Go like os.Hostname() or os.Getwd() ? > Any framework or Library that we can use for mocking the function calls ? > > Thanks, > Nitish > > -- > 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 > <mailto:golang-nuts+unsubscr...@googlegroups.com>. > To view this discussion on the web visit > https://groups.google.com/d/msgid/golang-nuts/2f288e99-70db-476b-8a4a-75069be9e31a%40googlegroups.com > > <https://groups.google.com/d/msgid/golang-nuts/2f288e99-70db-476b-8a4a-75069be9e31a%40googlegroups.com?utm_medium=email&utm_source=footer>. -- 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/06D9DF57-C818-4A80-AFB2-7A53CB3ECC7B%40interlix.com.
