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Test
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A simple macro example.

| script                | lisp interpreter fixture     |
| check | evaluate text | (load "lisp/macro/nif.lisp") | T |
| check | evaluate text | (nif 10 'p 'z 'n)            | P |
| check | evaluate text | (nif 0 'p 'z 'n)             | Z |
| check | evaluate text | (nif -2 'p 'z 'n)            | N |
| check | evaluate text | (nif (- 10 9) 'p 'z 'n)      | P |