feat(golang-rewrite): update PluginAdd function to return error when …

…repo does not exist

plugins/main.go

@@ -42,6 +42,10 @@ func PluginAdd(config config.Config, pluginName, pluginUrl string) error {
 		URL: pluginUrl,
 	})
 
+	if err != nil {
+		return fmt.Errorf("Unable to clone plugin: %w", err)
+	}
+
 	// TODO: Implement this function
 	return nil
 }

plugins/main_test.go

@@ -5,6 +5,8 @@ import (
 	"os"
 	"strings"
 	"testing"
+
+	"github.com/stretchr/testify/assert"
 )
 
 func TestPluginAdd(t *testing.T) {
@@ -49,6 +51,11 @@ func TestPluginAdd(t *testing.T) {
 	})
 
 	t.Run("when plugin name is valid but URL is invalid prints an error", func(t *testing.T) {
+		conf := config.Config{DataDir: testDataDir}
+
+		err := PluginAdd(conf, "foo", "foobar")
+
+		assert.ErrorContains(t, err, "Unable to clone plugin: repository not found")
 	})
 
 	t.Run("when plugin name and URL are valid installs plugin", func(t *testing.T) {