# Code coverage report for RxJS/dist/cjs/testing/TestScheduler.js

## Statements: 93.71% (149 / 159) Branches: 82.28% (65 / 79) Functions: 100% (27 / 27) Lines: 94.7% (143 / 151) Ignored: none

All files » RxJS/dist/cjs/testing/ » TestScheduler.js

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    1'use strict';

    exports.__esModule = true;

    function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

    function _classCallCheck(instance, Constructor) { Iif (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function'); } }

    function _inherits(subClass, superClass) { Iif (typeof superClass !== 'function' && superClass !== null) { throw new TypeError('Super expression must either be null or a function, not ' + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); Eif (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }

    var _Observable = require('../Observable');

    var _Observable2 = _interopRequireDefault(_Observable);

    var _schedulersVirtualTimeScheduler = require('../schedulers/VirtualTimeScheduler');

    var _schedulersVirtualTimeScheduler2 = _interopRequireDefault(_schedulersVirtualTimeScheduler);

    var _Notification = require('../Notification');

    var _Notification2 = _interopRequireDefault(_Notification);

    var _ColdObservable = require('./ColdObservable');

    var _ColdObservable2 = _interopRequireDefault(_ColdObservable);

    var _HotObservable = require('./HotObservable');

    var _HotObservable2 = _interopRequireDefault(_HotObservable);

    var _SubscriptionLog = require('./SubscriptionLog');

    var _SubscriptionLog2 = _interopRequireDefault(_SubscriptionLog);

    var TestScheduler = (function (_VirtualTimeScheduler) {
        _inherits(TestScheduler, _VirtualTimeScheduler);

        function TestScheduler(assertDeepEqual) {
            _classCallCheck(this, TestScheduler);

            _VirtualTimeScheduler.call(this);
            this.assertDeepEqual = assertDeepEqual;
            this.hotObservables = [];
            this.flushTests = [];
        }

        TestScheduler.prototype.createColdObservable = function createColdObservable(marbles, values, error) {
            Iif (marbles.indexOf('^') !== -1) {
                throw new Error('Cold observable cannot have subscription offset "^"');
            }
            Iif (marbles.indexOf('!') !== -1) {
                throw new Error('Cold observable cannot have unsubscription marker "!"');
            }
            var messages = TestScheduler.parseMarbles(marbles, values, error);
            return new _ColdObservable2['default'](messages, this);
        };

        TestScheduler.prototype.createHotObservable = function createHotObservable(marbles, values, error) {
            Iif (marbles.indexOf('!') !== -1) {
                throw new Error('Hot observable cannot have unsubscription marker "!"');
            }
            var messages = TestScheduler.parseMarbles(marbles, values, error);
            var subject = new _HotObservable2['default'](messages, this);
            this.hotObservables.push(subject);
            return subject;
        };

        TestScheduler.prototype.materializeInnerObservable = function materializeInnerObservable(observable, outerFrame) {
            var _this = this;

            var messages = [];
            observable.subscribe(function (value) {
                messages.push({ frame: _this.frame - outerFrame, notification: _Notification2['default'].createNext(value) });
            }, function (err) {
                messages.push({ frame: _this.frame - outerFrame, notification: _Notification2['default'].createError(err) });
            }, function () {
                messages.push({ frame: _this.frame - outerFrame, notification: _Notification2['default'].createComplete() });
            });
            return messages;
        };

        TestScheduler.prototype.expectObservable = function expectObservable(observable) {
            var _this2 = this;

            var unsubscriptionMarbles = arguments.length <= 1 || arguments[1] === undefined ? null : arguments[1];

            var actual = [];
            var flushTest = { actual: actual, ready: false };
            var unsubscriptionFrame = TestScheduler.parseMarblesAsSubscriptions(unsubscriptionMarbles).unsubscribedFrame;
            var subscription = undefined;
            this.schedule(function () {
                subscription = observable.subscribe(function (x) {
                    var value = x;
                    // Support Observable-of-Observables
                    if (x instanceof _Observable2['default']) {
                        value = _this2.materializeInnerObservable(value, _this2.frame);
                    }
                    actual.push({ frame: _this2.frame, notification: _Notification2['default'].createNext(value) });
                }, function (err) {
                    actual.push({ frame: _this2.frame, notification: _Notification2['default'].createError(err) });
                }, function () {
                    actual.push({ frame: _this2.frame, notification: _Notification2['default'].createComplete() });
                });
            }, 0);
            if (unsubscriptionFrame !== Number.POSITIVE_INFINITY) {
                this.schedule(function () {
                    return subscription.unsubscribe();
                }, unsubscriptionFrame);
            }
            this.flushTests.push(flushTest);
            return {
                toBe: function toBe(marbles, values, errorValue) {
                    flushTest.ready = true;
                    flushTest.expected = TestScheduler.parseMarbles(marbles, values, errorValue, true);
                }
            };
        };

        TestScheduler.prototype.expectSubscriptions = function expectSubscriptions(actualSubscriptionLogs) {
            var flushTest = { actual: actualSubscriptionLogs, ready: false };
            this.flushTests.push(flushTest);
            return {
                toBe: function toBe(marbles) {
                    var marblesArray = typeof marbles === 'string' ? [marbles] : marbles;
                    flushTest.ready = true;
                    flushTest.expected = marblesArray.map(function (marbles) {
                        return TestScheduler.parseMarblesAsSubscriptions(marbles);
                    });
                }
            };
        };

        TestScheduler.prototype.flush = function flush() {
            var hotObservables = this.hotObservables;
            while (hotObservables.length > 0) {
                hotObservables.shift().setup();
            }
            _VirtualTimeScheduler.prototype.flush.call(this);
            var readyFlushTests = this.flushTests.filter(function (test) {
                return test.ready;
            });
            while (readyFlushTests.length > 0) {
                var test = readyFlushTests.shift();
                this.assertDeepEqual(test.actual, test.expected);
            }
        };

        TestScheduler.parseMarblesAsSubscriptions = function parseMarblesAsSubscriptions(marbles) {
            if (typeof marbles !== 'string') {
                return new _SubscriptionLog2['default'](Number.POSITIVE_INFINITY);
            }
            var len = marbles.length;
            var groupStart = -1;
            var subscriptionFrame = Number.POSITIVE_INFINITY;
            var unsubscriptionFrame = Number.POSITIVE_INFINITY;
            for (var i = 0; i < len; i++) {
                var frame = i * this.frameTimeFactor;
                var c = marbles[i];
                switch (c) {
                    case '-':
                    case ' ':
                        break;
                    case '(':
                        groupStart = frame;
                        break;
                    case ')':
                        groupStart = -1;
                        break;
                    case '^':
                        Iif (subscriptionFrame !== Number.POSITIVE_INFINITY) {
                            throw new Error('Found a second subscription point \'^\' in a ' + 'subscription marble diagram. There can only be one.');
                        }
                        subscriptionFrame = groupStart > -1 ? groupStart : frame;
                        break;
                    case '!':
                        Iif (unsubscriptionFrame !== Number.POSITIVE_INFINITY) {
                            throw new Error('Found a second subscription point \'^\' in a ' + 'subscription marble diagram. There can only be one.');
                        }
                        unsubscriptionFrame = groupStart > -1 ? groupStart : frame;
                        break;
                    default:
                        throw new Error('There can only be \'^\' and \'!\' markers in a ' + 'subscription marble diagram. Found instead \'' + c + '\'.');
                }
            }
            Iif (unsubscriptionFrame < 0) {
                return new _SubscriptionLog2['default'](subscriptionFrame);
            } else {
                return new _SubscriptionLog2['default'](subscriptionFrame, unsubscriptionFrame);
            }
        };

        TestScheduler.parseMarbles = function parseMarbles(marbles, values, errorValue) {
            var materializeInnerObservables = arguments.length <= 3 || arguments[3] === undefined ? false : arguments[3];

            Iif (marbles.indexOf('!') !== -1) {
                throw new Error('Conventional marble diagrams cannot have the ' + 'unsubscription marker "!"');
            }
            var len = marbles.length;
            var testMessages = [];
            var subIndex = marbles.indexOf('^');
            var frameOffset = subIndex === -1 ? 0 : subIndex * -this.frameTimeFactor;
            var getValue = typeof values !== 'object' ? function (x) {
                return x;
            } : function (x) {
                // Support Observable-of-Observables
                if (materializeInnerObservables && values[x] instanceof _ColdObservable2['default']) {
                    return values[x].messages;
                }
                return values[x];
            };
            var groupStart = -1;
            for (var i = 0; i < len; i++) {
                var frame = i * this.frameTimeFactor;
                var notification = undefined;
                var c = marbles[i];
                switch (c) {
                    case '-':
                    case ' ':
                        break;
                    case '(':
                        groupStart = frame;
                        break;
                    case ')':
                        groupStart = -1;
                        break;
                    case '|':
                        notification = _Notification2['default'].createComplete();
                        break;
                    case '^':
                        break;
                    case '#':
                        notification = _Notification2['default'].createError(errorValue || 'error');
                        break;
                    default:
                        notification = _Notification2['default'].createNext(getValue(c));
                        break;
                }
                frame += frameOffset;
                if (notification) {
                    testMessages.push({ frame: groupStart > -1 ? groupStart : frame, notification: notification });
                }
            }
            return testMessages;
        };

        return TestScheduler;
    })(_schedulersVirtualTimeScheduler2['default']);

    exports.TestScheduler = TestScheduler;