{`ABCDEFGHIJKLMNOPQRSTUVWXYZ`, true},
	{`abcdefghijklmnopqrstuvwxyz`, true},
	{`☺`, true},
	{"\x80", false},
	{"a\xe0\xa0z", false},
	{"\ufeffabc", false},
	{"a\ufeffz", false},
}

func TestCanBackquote(t *testing.T) {
	for _, tt := range canbackquotetests {
		if out := CanBackquote(tt.in); out != tt.out {
			t.Errorf("CanBackquote(%q) = %v, want %v", tt.in, out, tt.out)
		}
	}
}