package daemon

import "testing"

func TestFirstNonEmpty(t *testing.T) {
	cases := []struct {
		name   string
		values []string
		want   string
	}{
		{"all empty", []string{"", "   ", "\t"}, ""},
		{"first wins", []string{"a", "b"}, "a"},
		{"skips blanks", []string{"", "  ", "first", "second"}, "first"},
		{"nil input", nil, ""},
	}
	for _, tc := range cases {
		t.Run(tc.name, func(t *testing.T) {
			got := firstNonEmpty(tc.values...)
			if got != tc.want {
				t.Errorf("firstNonEmpty(%v) = %q, want %q", tc.values, got, tc.want)
			}
		})
	}
}