spec-js/operators/let-spec.js
"use strict";
var chai_1 = require('chai');
var Rx = require('../../dist/cjs/Rx');
/** @test {let} */
describe('Observable.prototype.let', function () {
it('should be able to compose with let', function (done) {
var expected = ['aa', 'bb'];
var i = 0;
var foo = function (observable) { return observable.map(function (x) { return x + x; }); };
Rx.Observable
.from(['a', 'b'])
.let(foo)
.subscribe(function (x) {
chai_1.expect(x).to.equal(expected[i++]);
}, function (x) {
done(new Error('should not be called'));
}, function () {
done();
});
});
});
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