spec-js/operators/bufferToggle-spec.js
"use strict";
var chai_1 = require('chai');
var Rx = require('../../dist/package/Rx');
var Observable = Rx.Observable;
/** @test {bufferToggle} */
describe('Observable.prototype.bufferToggle', function () {
asDiagram('bufferToggle')('should emit buffers using hot openings and hot closings', function () {
var e1 = hot('---a---b---c---d---e---f---g---|');
var e2 = hot('--o------------------o---------|');
var e3 = hot('---------c---------------c-----|');
var expected = '---------x---------------y-----|';
var values = {
x: ['a', 'b'],
y: ['f'],
};
var result = e1.bufferToggle(e2, function (x) { return e3; });
expectObservable(result).toBe(expected, values);
});
it('should emit buffers that are opened by an observable from the first argument ' +
'and closed by an observable returned by the function in the second argument', function () {
var e1 = hot('-----a----b----c----d----e----f----g----h----i----|');
var e2 = cold('-------------x-------------y--------------z-------|');
var e3 = cold('---------------(j|)');
// ---------------(j|)
// ---------------(j|)
var expected = '----------------------------q-------------r-------(s|)';
var values = {
q: ['c', 'd', 'e'],
r: ['f', 'g', 'h'],
s: ['i']
};
var innerVals = ['x', 'y', 'z'];
expectObservable(e1.bufferToggle(e2, function (x) {
chai_1.expect(x).to.equal(innerVals.shift());
return e3;
})).toBe(expected, values);
});
it('should emit buffers using constying cold closings', function () {
var e1 = hot('--a--^---b---c---d---e---f---g---h------| ');
var e2 = cold('--x-----------y--------z---| ');
var subs = '^ ! ';
var closings = [
cold('---------------s--| '),
cold('----(s|) '),
cold('---------------(s|)')];
var closeSubs = [' ^ ! ',
' ^ ! ',
' ^ ! '];
var expected = '-----------------ij----------------(k|) ';
var values = {
i: ['b', 'c', 'd', 'e'],
j: ['e'],
k: ['g', 'h']
};
var i = 0;
var result = e1.bufferToggle(e2, function () { return closings[i++]; });
expectObservable(result).toBe(expected, values);
expectSubscriptions(e1.subscriptions).toBe(subs);
expectSubscriptions(closings[0].subscriptions).toBe(closeSubs[0]);
expectSubscriptions(closings[1].subscriptions).toBe(closeSubs[1]);
expectSubscriptions(closings[2].subscriptions).toBe(closeSubs[2]);
});
it('should emit buffers using constying hot closings', function () {
var e1 = hot('--a--^---b---c---d---e---f---g---h------| ');
var e2 = cold('--x-----------y--------z---| ');
var subs = '^ ! ';
var closings = [
{ obs: hot('-1--^----------------s-| '),
sub: ' ^ ! ' },
{ obs: hot('-----3----4-------(s|) '),
sub: ' ^ ! ' },
{ obs: hot('-------3----4-------5----------------s|'),
sub: ' ^ ! ' }]; // eslint-disable-line key-spacing
var expected = '-----------------ij----------------(k|)';
var values = {
i: ['b', 'c', 'd', 'e'],
j: ['e'],
k: ['g', 'h']
};
var i = 0;
var result = e1.bufferToggle(e2, function () { return closings[i++].obs; });
expectObservable(result).toBe(expected, values);
expectSubscriptions(e1.subscriptions).toBe(subs);
for (var j = 0; j < closings.length; j++) {
expectSubscriptions(closings[j].obs.subscriptions).toBe(closings[j].sub);
}
});
it('should emit buffers using constying empty delayed closings', function () {
var e1 = hot('--a--^---b---c---d---e---f---g---h------| ');
var e2 = cold('--x-----------y--------z---| ');
var subs = '^ ! ';
var closings = [
cold('---------------| '),
cold('----| '),
cold('---------------|')];
var expected = '-----------------ij----------------(k|)';
var values = {
i: ['b', 'c', 'd', 'e'],
j: ['e'],
k: ['g', 'h']
};
var i = 0;
var result = e1.bufferToggle(e2, function () { return closings[i++]; });
expectObservable(result).toBe(expected, values);
expectSubscriptions(e1.subscriptions).toBe(subs);
});
it('should emit buffers using constying cold closings, outer unsubscribed early', function () {
var e1 = hot('--a--^---b---c---d---e---f---g---h------| ');
var subs = '^ ! ';
var e2 = cold('--x-----------y--------z---| ');
var closings = [
cold('---------------s--| '),
cold('----(s|) '),
cold('---------------(s|)')];
var csub0 = ' ^ ! ';
var expected = '----------- ';
var unsub = ' ! ';
var values = {
i: ['b', 'c', 'd', 'e']
};
var i = 0;
var result = e1.bufferToggle(e2, function () { return closings[i++]; });
expectObservable(result, unsub).toBe(expected, values);
expectSubscriptions(e1.subscriptions).toBe(subs);
expectSubscriptions(closings[0].subscriptions).toBe(csub0);
expectSubscriptions(closings[1].subscriptions).toBe([]);
expectSubscriptions(closings[2].subscriptions).toBe([]);
});
it('should not break unsubscription chains when result is unsubscribed explicitly', function () {
var e1 = hot('--a--^---b---c---d---e---f---g---h------| ');
var subs = '^ ! ';
var e2 = cold('--x-----------y--------z---| ');
var closings = [
cold('---------------s--| '),
cold('----(s|) '),
cold('---------------(s|)')];
var expected = '-----------------i- ';
var unsub = ' ! ';
var values = {
i: ['b', 'c', 'd', 'e']
};
var i = 0;
var result = e1
.mergeMap(function (x) { return Observable.of(x); })
.bufferToggle(e2, function () { return closings[i++]; })
.mergeMap(function (x) { return Observable.of(x); });
expectObservable(result, unsub).toBe(expected, values);
expectSubscriptions(e1.subscriptions).toBe(subs);
});
it('should propagate error thrown from closingSelector', function () {
var e1 = hot('--a--^---b---c---d---e---f---g---h------| ');
var e2 = cold('--x-----------y--------z---| ');
var subs = '^ ! ';
var closings = [
cold('---------------s--| '),
cold('----(s|) '),
cold('---------------(s|)')];
var closeSubs0 = ' ^ ! ';
var expected = '--------------# ';
var i = 0;
var result = e1.bufferToggle(e2, function () {
if (i === 1) {
throw 'error';
}
return closings[i++];
});
expectObservable(result).toBe(expected);
expectSubscriptions(e1.subscriptions).toBe(subs);
expectSubscriptions(closings[0].subscriptions).toBe(closeSubs0);
expectSubscriptions(closings[1].subscriptions).toBe([]);
expectSubscriptions(closings[2].subscriptions).toBe([]);
});
it('should propagate error emitted from a closing', function () {
var e1 = hot('--a--^---b---c---d---e---f---g---h------|');
var e2 = cold('--x-----------y--------z---| ');
var subs = '^ ! ';
var closings = [
cold('---------------s--| '),
cold('# ')];
var closeSubs = [' ^ ! ',
' (^!) '];
var expected = '--------------# ';
var i = 0;
var result = e1.bufferToggle(e2, function () { return closings[i++]; });
expectObservable(result).toBe(expected);
expectSubscriptions(e1.subscriptions).toBe(subs);
expectSubscriptions(closings[0].subscriptions).toBe(closeSubs[0]);
expectSubscriptions(closings[1].subscriptions).toBe(closeSubs[1]);
});
it('should propagate error emitted late from a closing', function () {
var e1 = hot('--a--^---b---c---d---e---f---g---h------|');
var e2 = cold('--x-----------y--------z---| ');
var subs = '^ ! ';
var closings = [
cold('---------------s--| '),
cold('-----# ')];
var closeSubs = [' ^ ! ',
' ^ ! '];
var expected = '-----------------i-# ';
var values = {
i: ['b', 'c', 'd', 'e']
};
var i = 0;
var result = e1.bufferToggle(e2, function () { return closings[i++]; });
expectObservable(result).toBe(expected, values);
expectSubscriptions(e1.subscriptions).toBe(subs);
expectSubscriptions(closings[0].subscriptions).toBe(closeSubs[0]);
expectSubscriptions(closings[1].subscriptions).toBe(closeSubs[1]);
});
it('should handle errors', function () {
var e1 = hot('--a--^---b---c---d---e--# ');
var e2 = cold('--x-----------y--------z---|');
var subs = '^ ! ';
var closings = [
cold('---------------s--| '),
cold('-------s| ')];
var closeSubs = [' ^ ! ',
' ^ ! '];
var expected = '-----------------i-# ';
var values = {
i: ['b', 'c', 'd', 'e']
};
var i = 0;
var result = e1.bufferToggle(e2, function () { return closings[i++]; });
expectObservable(result).toBe(expected, values);
expectSubscriptions(e1.subscriptions).toBe(subs);
expectSubscriptions(closings[0].subscriptions).toBe(closeSubs[0]);
expectSubscriptions(closings[1].subscriptions).toBe(closeSubs[1]);
});
it('should handle empty source', function () {
var e1 = cold('|');
var e2 = cold('--o-----|');
var e3 = cold('-----c--|');
var expected = '|';
var values = { x: [] };
var result = e1.bufferToggle(e2, function () { return e3; });
expectObservable(result).toBe(expected, values);
});
it('should handle throw', function () {
var e1 = cold('#');
var e2 = cold('--o-----|');
var e3 = cold('-----c--|');
var expected = '#';
var values = { x: [] };
var result = e1.bufferToggle(e2, function () { return e3; });
expectObservable(result).toBe(expected, values);
});
it('should handle never', function () {
var e1 = hot('-');
var e2 = cold('--o-----o------o-----o---o-----|');
var e3 = cold('--c-|');
var unsub = ' !';
var subs = '^ !';
var expected = '----x-----x------x-----x---x-----------------';
var values = { x: [] };
var result = e1.bufferToggle(e2, function () { return e3; });
expectObservable(result, unsub).toBe(expected, values);
expectSubscriptions(e1.subscriptions).toBe(subs);
});
it('should handle a never opening Observable', function () {
var e1 = hot('--a--^---b---c---d---e---f---g---h------|');
var e2 = cold('-');
var e3 = cold('--c-|');
var expected = '-----------------------------------|';
var result = e1.bufferToggle(e2, function () { return e3; });
expectObservable(result).toBe(expected);
});
it('should handle a never closing Observable', function () {
var e1 = hot('--a--^---b---c---d---e---f---g---h------|');
var e2 = cold('---o---------------o-----------|');
var e3 = cold('-');
var expected = '-----------------------------------(xy|)';
var values = {
x: ['b', 'c', 'd', 'e', 'f', 'g', 'h'],
y: ['f', 'g', 'h']
};
var result = e1.bufferToggle(e2, function () { return e3; });
expectObservable(result).toBe(expected, values);
});
it('should handle opening Observable that just throws', function () {
var e1 = hot('--a--^---b---c---d---e---f---g---h------|');
var e1subs = '(^!)';
var e2 = cold('#');
var e2subs = '(^!)';
var e3 = cold('--c-|');
var expected = '#';
var result = e1.bufferToggle(e2, function () { return e3; });
expectObservable(result).toBe(expected);
expectSubscriptions(e1.subscriptions).toBe(e1subs);
expectSubscriptions(e2.subscriptions).toBe(e2subs);
});
it('should accept openings resolved promise', function (done) {
var e1 = Observable.concat(Observable.timer(10).mapTo(1), Observable.timer(100).mapTo(2), Observable.timer(150).mapTo(3), Observable.timer(200).mapTo(4));
var expected = [[1]];
e1.bufferToggle(new Promise(function (resolve) { resolve(42); }), function () {
return Observable.timer(50);
}).subscribe(function (x) {
chai_1.expect(x).to.deep.equal(expected.shift());
}, function (x) {
done(new Error('should not be called'));
}, function () {
chai_1.expect(expected.length).to.be.equal(0);
done();
});
});
it('should accept openings rejected promise', function (done) {
var e1 = Observable.concat(Observable.of(1), Observable.timer(10).mapTo(2), Observable.timer(10).mapTo(3), Observable.timer(100).mapTo(4));
var expected = 42;
e1.bufferToggle(new Promise(function (resolve, reject) { reject(expected); }), function () {
return Observable.timer(50);
}).subscribe(function (x) {
done(new Error('should not be called'));
}, function (x) {
chai_1.expect(x).to.equal(expected);
done();
}, function () {
done(new Error('should not be called'));
});
});
it('should accept closing selector that returns a resolved promise', function (done) {
var e1 = Observable.concat(Observable.of(1), Observable.timer(10).mapTo(2), Observable.timer(10).mapTo(3), Observable.timer(100).mapTo(4));
var expected = [[1]];
e1.bufferToggle(Observable.of(10), function () { return new Promise(function (resolve) { resolve(42); }); })
.subscribe(function (x) {
chai_1.expect(x).to.deep.equal(expected.shift());
}, function () {
done(new Error('should not be called'));
}, function () {
chai_1.expect(expected.length).to.be.equal(0);
done();
});
});
it('should accept closing selector that returns a rejected promise', function (done) {
var e1 = Observable.concat(Observable.of(1), Observable.timer(10).mapTo(2), Observable.timer(10).mapTo(3), Observable.timer(100).mapTo(4));
var expected = 42;
e1.bufferToggle(Observable.of(10), function () { return new Promise(function (resolve, reject) { reject(expected); }); })
.subscribe(function (x) {
done(new Error('should not be called'));
}, function (x) {
chai_1.expect(x).to.equal(expected);
done();
}, function () {
done(new Error('should not be called'));
});
});
it('should handle empty closing observable', function () {
var e1 = hot('--a--^---b---c---d---e---f---g---h------|');
var subs = '^ !';
var e2 = cold('--x-----------y--------z---| ');
var expected = '--l-----------m--------n-----------|';
var result = e1.bufferToggle(e2, function () { return Observable.empty(); });
expectObservable(result).toBe(expected, { l: [], m: [], n: [] });
expectSubscriptions(e1.subscriptions).toBe(subs);
});
});
//# sourceMappingURL=bufferToggle-spec.js.map
