Ensure remote URL parsing tests don't read user SSH config files

command/root.go

@@ -17,9 +17,7 @@ var (
 func init() {
 	RootCmd.PersistentFlags().StringVarP(&currentRepo, "repo", "R", "", "current GitHub repository")
 	RootCmd.PersistentFlags().StringVarP(&currentBranch, "current-branch", "B", "", "current git branch")
-}
 
-func initContext() {
 	ctx := context.InitDefaultContext()
 	ctx.SetBranch(currentBranch)
 	repo := currentRepo
@@ -27,6 +25,7 @@ func initContext() {
 		repo = os.Getenv("GH_REPO")
 	}
 	ctx.SetBaseRepo(repo)
+
 	git.InitSSHAliasMap(nil)
 }
 
@@ -36,9 +35,6 @@ var RootCmd = &cobra.Command{
 	Short: "GitHub CLI",
 	Long:  `Do things with GitHub from your terminal`,
 	Args:  cobra.MinimumNArgs(1),
-	PersistentPreRun: func(cmd *cobra.Command, args []string) {
-		initContext()
-	},
 	Run: func(cmd *cobra.Command, args []string) {
 		fmt.Println("root")
 	},

context/remote_test.go

@@ -2,15 +2,36 @@ package context
 
 import (
 	"testing"
+
+	"github.com/github/gh-cli/git"
 )
 
 func Test_repoFromURL(t *testing.T) {
+	git.InitSSHAliasMap(nil)
+
 	r, err := repoFromURL("http://github.com/monalisa/octo-cat.git")
 	eq(t, err, nil)
 	eq(t, r, &GitHubRepository{Owner: "monalisa", Name: "octo-cat"})
 }
 
+func Test_repoFromURL_SSH(t *testing.T) {
+	git.InitSSHAliasMap(map[string]string{
+		"gh":         "github.com",
+		"github.com": "ssh.github.com",
+	})
+
+	r, err := repoFromURL("git@gh:monalisa/octo-cat")
+	eq(t, err, nil)
+	eq(t, r, &GitHubRepository{Owner: "monalisa", Name: "octo-cat"})
+
+	r, err = repoFromURL("git@github.com:monalisa/octo-cat")
+	eq(t, err, nil)
+	eq(t, r, &GitHubRepository{Owner: "monalisa", Name: "octo-cat"})
+}
+
 func Test_parseRemotes(t *testing.T) {
+	git.InitSSHAliasMap(nil)
+
 	remoteList := []string{
 		"mona\tgit@github.com:monalisa/myfork.git (fetch)",
 		"origin\thttps://github.com/monalisa/octo-cat.git (fetch)",