chore: better error handling

Signed-off-by: Norman <[email protected]>
gnolang · Dec 28, 2024 · 8b1ddaf · 8b1ddaf
1 parent 3a519b3
commit 8b1ddaf
Show file tree

Hide file tree

Showing 2 changed files with 9 additions and 4 deletions.
diff --git a/gnovm/cmd/gno/pkgaddr.go b/gnovm/cmd/gno/pkgaddr.go
@@ -2,7 +2,7 @@ package main
 
 import (
 	"context"
-	"fmt"
+	"flag"
 
 	"github.com/gnolang/gno/gnovm/pkg/gnolang"
 	"github.com/gnolang/gno/tm2/pkg/commands"
@@ -24,7 +24,7 @@ func newPkgAddrCmd(io commands.IO) *commands.Command {
 
 func execPkgAddr(args []string, io commands.IO) error {
 	if len(args) != 1 {
-		return fmt.Errorf("expected 1 arg, got %d", len(args))
+		return flag.ErrHelp
 	}
 
 	io.Println(gnolang.DerivePkgAddr(args[0]))

diff --git a/gnovm/cmd/gno/pkgaddr_test.go b/gnovm/cmd/gno/pkgaddr_test.go
@@ -7,8 +7,13 @@ import (
 func TestPkgAddrApp(t *testing.T) {
 	tc := []testMainCase{
 		{
-			args:        []string{"pkgaddr"},
-			errShouldBe: "expected 1 arg, got 0",
+			args:             []string{"pkgaddr"},
+			errShouldContain: "flag: help requested",
+		},
+
+		{
+			args:             []string{"pkgaddr", "bli", "blu"},
+			errShouldContain: "flag: help requested",
 		},
 
 		{