| PASS "foo\0" becomes "foo�" | |
| PASS "f\0oo" becomes "f�oo" | |
| PASS "\0foo" becomes "�foo" | |
| PASS "\0" becomes "�" | |
| PASS "\0\0\0" becomes "���" | |
| PASS "fooU+d800" becomes "foo�" | |
| PASS "fU+d800oo" becomes "f�oo" | |
| PASS "U+d800foo" becomes "�foo" | |
| PASS "U+d800" becomes "�" | |
| PASS "U+d800U+d800U+d800" becomes "���" | |