Cover a couple special paths in keychain unit tests.

[mattmoor]

Looks like it works. 👍

[dprotaso]

This throws me off

go-containerregistry/pkg/authn/keychain.go

Lines 117 to 133 in dd8d514

	var cfg, empty types.AuthConfig
	for _, key := range []string{
	target.String(),
	target.RegistryStr(),
	} {
	if key == name.DefaultRegistry {
	key = DefaultAuthKey
	}
	cfg, err = cf.GetAuthConfig(key)
	if err != nil {
	return nil, err
	}
	if cfg != empty {
	break
	}
	}

Since the test for repos uses a config file that doesn't have schemes

go-containerregistry/pkg/authn/keychain_test.go

Lines 252 to 260 in dd8d514

	}, {
	desc: "valid config file; matches repo",
	target: testRepo,
	content: fmt.Sprintf(`{
	"auths": {
	"test.io/my-repo": {"auth": %q},
	"test.io/another-repo": {"auth": %q},
	"test.io": {"auth": %q}
	}

But I think the the scheme should be present - hence my K8S PR - #1299

[dprotaso]

So my ./.dockerconfig has

{
  "https://gcr.io": {...},
  "https://us.gcr.io": {...},
  ...
}

But my /.docker/config.json has

{
	"auths": {
		"https://index.docker.io/v1/": {},
		"registry.gitlab.com": {}
	},
	"credsStore": "desktop",
	"credHelpers": {
		"asia.gcr.io": "gcloud",
		"eu.gcr.io": "gcloud",
		"gcr.io": "gcloud",
		"marketplace.gcr.io": "gcloud",
		"staging-k8s.gcr.io": "gcloud",
		"us.gcr.io": "gcloud"
	}
}

[dprotaso]

looks like the docker code handles the scheme properly 🎉