test: increase code coverage

cmd/gaiad/cmd/root.go

@@ -46,7 +46,8 @@ func NewRootCmd() (*cobra.Command, params.EncodingConfig) {
 		WithLegacyAmino(encodingConfig.Amino).
 		WithInput(os.Stdin).
 		WithAccountRetriever(types.AccountRetriever{}).
-		WithHomeDir(gaia.DefaultNodeHome)
+		WithHomeDir(gaia.DefaultNodeHome).
+		WithViper("")
 
 	rootCmd := &cobra.Command{
 		Use:   "gaiad",

cmd/gaiad/cmd/root_test.go

@@ -0,0 +1,23 @@
+package cmd_test
+
+import (
+	"testing"
+
+	svrcmd "github.com/cosmos/cosmos-sdk/server/cmd"
+
+	app "github.com/cosmos/gaia/v5/app"
+	"github.com/cosmos/gaia/v5/cmd/gaiad/cmd"
+	"github.com/stretchr/testify/require"
+)
+
+func TestRootCmdConfig(t *testing.T) {
+
+	rootCmd, _ := cmd.NewRootCmd()
+	rootCmd.SetArgs([]string{
+		"config",          // Test the config cmd
+		"keyring-backend", // key
+		"test",            // value
+	})
+
+	require.NoError(t, svrcmd.Execute(rootCmd, app.DefaultNodeHome))
+}