How to test inherited flags?

[abitrolly]

When I test Cobra command, I do this:

        cmd := NewCmdStatus(cmdutils.NewFactory())
        t.Run("no repo", func(t *testing.T) {
                err := cmd.Execute()
                assert.Error(t, err)
        })
        t.Run("no repo with -R", func(t *testing.T) {
                cmd.SetArgs([]string{"-R", "forkrepo"})
                err := cmd.Execute()
                assert.NoError(t, err)
        })

The problem is that -R is defined in parent command, so the test fails.

I tried to add the flag explicitly to NewCmdStatus, but that didn't work too.

cmd.InheritedFlags().StringP("repo", "R", "", "Select another repository.")

So how to test that?

[marckhouzam]

Try to use cmd.Flags().StringP(…)

[abitrolly]

@marckhouzam then the flag won't appear in inherited flags section.

[marckhouzam]

Try cmd.PersistentFlags().StringP(…) instead. Although I’m not sure it will add it to the inherited flags on the current command.

An alternative is to create a fake root command in your test, add the flag as persistent and add your real command as a child of this fake root.