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var R = require('../source');var eq = require('./shared/eq');var listXf = require('./helpers/listXf');

describe('findLast', function() {  var obj1 = {x: 100};  var obj2 = {x: 200};  var a = [11, 10, 9, 'cow', obj1, 8, 7, 100, 200, 300, obj2, 4, 3, 2, 1, 0];  var even = function(x) { return x % 2 === 0; };  var gt100 = function(x) { return x > 100; };  var isStr = function(x) { return typeof x === 'string'; };  var xGt100 = function(o) { return o && o.x > 100; };  var intoArray = R.into([]);
  it('returns the index of the last element that satisfies the predicate', function() {    eq(R.findLast(even, a), 0);    eq(R.findLast(gt100, a), 300);    eq(R.findLast(isStr, a), 'cow');    eq(R.findLast(xGt100, a), obj2);  });
  it('returns the index of the last element that satisfies the predicate into an array', function() {    eq(intoArray(R.findLast(even), a), [0]);    eq(intoArray(R.findLast(gt100), a), [300]);    eq(intoArray(R.findLast(isStr), a), ['cow']);    eq(intoArray(R.findLast(xGt100), a), [obj2]);  });
  it('returns `undefined` when no element satisfies the predicate', function() {    eq(R.findLast(even, ['zing']), undefined);  });
  it('returns `undefined` into an array when no element satisfies the predicate', function() {    eq(intoArray(R.findLast(even), ['zing']), [undefined]);  });
  it('works when the first element matches', function() {    eq(R.findLast(even, [2, 3, 5]), 2);  });
  it('does not go into an infinite loop on an empty array', function() {    eq(R.findLast(even, []), undefined);  });
  it('dispatches to transformer objects', function() {    eq(R.findLast(R.identity, listXf), {      f: R.identity,      xf: listXf    });  });});