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

describe('where', function() {
  it('returns true if the test object satisfies the spec', function() {    var spec = {x: R.equals(1), y: R.equals(2)};    var test1 = {x: 0, y: 200};    var test2 = {x: 0, y: 10};    var test3 = {x: 1, y: 101};    var test4 = {x: 1, y: 2};    eq(R.where(spec, test1), false);    eq(R.where(spec, test2), false);    eq(R.where(spec, test3), false);    eq(R.where(spec, test4), true);  });
  it('does not need the spec and the test object to have the same interface (the test object will have a superset of the specs properties)', function() {    var spec = {x: R.equals(100)};    var test1 = {x: 20, y: 100, z: 100};    var test2 = {w: 1, x: 100, y: 100, z: 100};
    eq(R.where(spec, test1), false);    eq(R.where(spec, test2), true);  });
  it('matches specs that have undefined properties', function() {    var spec = {x: R.equals(undefined)};    var test1 = {};    var test2 = {x: null};    var test3 = {x: undefined};    var test4 = {x: 1};    eq(R.where(spec, test1), true);    eq(R.where(spec, test2), false);    eq(R.where(spec, test3), true);    eq(R.where(spec, test4), false);  });
  it('is true for an empty spec', function() {    eq(R.where({}, {a: 1}), true);  });
  it('matches inherited properties', function() {    var spec = {      toString: R.equals(Object.prototype.toString),      valueOf: R.equals(Object.prototype.valueOf)    };    eq(R.where(spec, {}), true);  });
  it('does not match inherited spec', function() {    function Spec() { this.y = R.equals(6); }    Spec.prototype.x = R.equals(5);    var spec = new Spec();
    eq(R.where(spec, {y: 6}), true);    eq(R.where(spec, {x: 5}), false);  });
});