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var S = require('sanctuary');
var R = require('../source');var eq = require('./shared/eq');

describe('partition', function() {  it('splits a list into two lists according to a predicate', function() {    var pred = function(n) { return n % 2; };    eq(R.partition(pred, []), [[], []]);    eq(R.partition(pred, [0, 2, 4, 6]), [[], [0, 2, 4, 6]]);    eq(R.partition(pred, [1, 3, 5, 7]), [[1, 3, 5, 7], []]);    eq(R.partition(pred, [0, 1, 2, 3]), [[1, 3], [0, 2]]);  });
  it('works with objects', function() {    var pred = function(n) { return n % 2; };    eq(R.partition(pred, {}), [{}, {}]);    eq(R.partition(pred, { a: 0, b: 2, c: 4, d: 6 }),      [{}, { a: 0, b: 2, c: 4, d: 6 }]    );    eq(R.partition(pred, { a: 1, b: 3, c: 5, d: 7 }),      [{ a: 1, b: 3, c: 5, d: 7 }, {}]    );    eq(R.partition(pred, { a: 0, b: 1, c: 2, d: 3 }),      [{ b: 1, d: 3 }, { a: 0, c: 2 }]    );  });
  it('works with other filterables', function() {    eq(R.partition(R.isEmpty, S.Just(3)),      [S.Nothing(), S.Just(3)]    );    eq(R.partition(R.complement(R.isEmpty), S.Just(3)),      [S.Just(3), S.Nothing()]    );  });
});