lucene-filter.js

Data filter for lucene queries
git clone git://git.finwo.net/lib/lucene-filter.js
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and-not.test.js (896B)

      1 const tape      = require('tape');
      2 const operators = require('./index');
      3 
      4 const andNot = operators['AND NOT'];
      5 
      6 const minus = n => () => -n(),
      7   zero  = () => 0,
      8   one   = () => 1,
      9   two   = () => 2,
     10   three = () => 3,
     11   four  = () => 4,
     12   five  = () => 5;
     13 
     14 tape('Verifying positive numbers', async t => {
     15   t.plan(5);
     16   t.equal(andNot(zero , one  )(), 0, '0 &! 1 == 0');
     17   t.equal(andNot(one  , two  )(), 1, '1 &! 2 == 1');
     18   t.equal(andNot(two  , three)(), 2, '2 &! 3 == 2');
     19   t.equal(andNot(three, four )(), 3, '3 &! 4 == 3');
     20   t.equal(andNot(four , five )(), 4, '4 &! 5 == 4');
     21 });
     22 
     23 tape('Mixing negative numbers', async t => {
     24   t.plan(2);
     25   t.equal(andNot(minus(two),       one )(), -1, '-2 &!  1 == -1');
     26   t.equal(andNot(      two , minus(one))(),  1, ' 2 &! -1 ==  1');
     27 });
     28 
     29 tape('Matching abs', async t => {
     30   t.plan(1);
     31   t.equal(andNot(minus(two), two)(), -2, '-2 &! 2 == -2');
     32 });