add unit test

client/go/internal/cli/cmd/auth_show.go

@@ -4,6 +4,7 @@
 package cmd
 
 import (
+	"bytes"
 	"encoding/json"
 	"fmt"
 	"net/http"
@@ -69,16 +70,17 @@ func doAuthShow(cli *CLI, args []string) error {
 	if err = dec.Decode(&userResponse); err != nil {
 		return err
 	}
-	fmt.Printf("Logged in as: %s\n", userResponse.User.Email)
+	var output bytes.Buffer
+	fmt.Fprintf(&output, "Logged in as: %s\n", userResponse.User.Email)
 	for tenant, data := range userResponse.Tenants {
-		fmt.Printf("Available tenant: %s\n", tenant)
+		fmt.Fprintf(&output, "Available tenant: %s\n", tenant)
 		for idx, role := range data.Roles {
 			if idx == 0 {
-				fmt.Printf("    your roles:")
+				fmt.Fprintf(&output, "    your roles:")
 			}
-			fmt.Printf(" %s", role)
+			fmt.Fprintf(&output, " %s", role)
 		}
-		fmt.Printf("\n")
 	}
+	cli.printSuccess(output.String())
 	return nil
 }

client/go/internal/cli/cmd/auth_show_test.go

@@ -0,0 +1,39 @@
+// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
+// Author: mpolden
+
+package cmd
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/vespa-engine/vespa/client/go/internal/mock"
+)
+
+func TestAuthShow(t *testing.T) {
+	t.Run("auth show", func(t *testing.T) {
+		testAuthShow(t, []string{"auth", "show"})
+	})
+}
+
+func testAuthShow(t *testing.T, subcommand []string) {
+	cli, stdout, stderr := newTestCLI(t)
+
+	err := cli.Run("config", "set", "target", "cloud")
+	assert.Nil(t, err)
+	err = cli.Run("config", "set", "application", "t1.a1")
+	assert.Nil(t, err)
+	err = cli.Run("auth", "api-key")
+	assert.Nil(t, err)
+	stdout.Reset()
+	stderr.Reset()
+
+	httpClient := &mock.HTTPClient{}
+	httpClient.NextResponseString(200, `{"user":{"email":"foo@bar"}}`)
+	cli.httpClient = httpClient
+
+	err = cli.Run(subcommand...)
+	assert.Nil(t, err)
+	assert.Contains(t, stderr.String(), "Authenticating with API key")
+	assert.Contains(t, stdout.String(), "Logged in as: foo@bar\n")
+}