n, err := Decode(out, []byte(tt.in))
		if string(out[:n]) != tt.out || err != tt.err {
			t.Errorf("Decode(%q) = %q, %v, want %q, %v", tt.in, string(out[:n]), err, tt.out, tt.err)
		}
	}
}

func TestDecodeStringErr(t *testing.T) {
	for _, tt := range errTests {
		out, err := DecodeString(tt.in)
		if string(out) != tt.out || err != tt.err {
			t.Errorf("DecodeString(%q) = %q, %v, want %q, %v", tt.in, out, err, tt.out, tt.err)