Add validateAddress test

x/wasm/keeper/api_test.go

@@ -0,0 +1,34 @@
+package keeper
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestValidateAddress(t *testing.T) {
+	specs := map[string]struct {
+		human string
+		valid bool
+	}{
+		"valid address": {
+			human: RandomBech32AccountAddress(t),
+			valid: true,
+		},
+		"invalid address": {
+			human: "cosmos1invalid",
+			valid: false,
+		},
+	}
+	for name, spec := range specs {
+		t.Run(name, func(t *testing.T) {
+			_, err := validateAddress(spec.human)
+
+			if spec.valid {
+				require.NoError(t, err)
+			} else {
+				require.Error(t, err)
+			}
+		})
+	}
+}