本文整理匯總了TypeScript中angular2-meteor.ObservableCursor類的典型用法代碼示例。如果您正苦於以下問題：TypeScript ObservableCursor類的具體用法？TypeScript ObservableCursor怎麽用？TypeScript ObservableCursor使用的例子？那麽, 這裏精選的類代碼示例或許可以為您提供幫助。
在下文中一共展示了ObservableCursor類的2個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的TypeScript代碼示例。
示例1: describe
describe('toObservable', function() {
let collection : Mongo.Collection;
let cursor : Mongo.Cursor;
let observable : ObservableCursor;
beforeEach(function() {
collection = new Mongo.Collection(null);
collection.allow({
insert: function () {
return true;
},
update: function () {
return true;
},
remove: function () {
return true;
}
});
cursor = collection.find({});
observable = toObservable(cursor);
});
it ("Should wrap the Mongo.Cursor and return RxJS Observable", function() {
expect(observable instanceof Observable).to.equal(true);
});
it ("Should not use the actual Cursor 'observe' method without Observable subscription", function() {
let spy = sinon.spy(cursor, "observe");
expect(spy.called).to.equal(false);
spy.restore();
});
it ("Should use the actual Cursor 'observe' after using Observable subscription", function() {
let spy = sinon.spy(cursor, "observe");
let subscriptionHandler = observable.subscribe(() => {});
expect(spy.calledOnce).to.equal(true);
spy.restore();
subscriptionHandler.unsubscribe();
});
it ("Should not trigger subscription callback when creating the subscription", function() {
let spy = sinon.spy();
let subscriptionHandler = observable.subscribe(spy);
expect(spy.called).to.equal(false);
subscriptionHandler.unsubscribe();
});
it ("Should trigger subscription callback when adding data to the collection", function() {
let spy = sinon.spy();
let subscriptionHandler = observable.subscribe(spy);
collection.insert({test: true});
expect(spy.calledOnce).to.equal(true);
subscriptionHandler.unsubscribe();
});
it ("Should trigger subscription callback when removing data to the collection", function() {
let spy = sinon.spy();
let subscriptionHandler = observable.subscribe(spy);
let idToRemove = collection.insert({test: true});
collection.remove(idToRemove);
expect(spy.callCount).to.equal(2);
subscriptionHandler.unsubscribe();
});
it ("Should trigger subscription callback when updating data on the collection", function() {
let spy = sinon.spy();
let subscriptionHandler = observable.subscribe(spy);
let idToUpdate = collection.insert({test: true});
collection.update({_id: idToUpdate}, {$set: {test: false}});
expect(spy.callCount).to.equal(2);
subscriptionHandler.unsubscribe();
});
it ("Should trigger the subscription callback multiple times when inserting multiple objects", function() {
let spy = sinon.spy();
let subscriptionHandler = observable.subscribe(spy);
collection.insert({test: 1});
collection.insert({test: 2});
collection.insert({test: 3});
expect(spy.callCount).to.equal(3);
subscriptionHandler.unsubscribe();
});
it ("Should NOT trigger the subscription callback when trying to update non-existing object", function() {
let spy = sinon.spy();
let subscriptionHandler = observable.subscribe(spy);
collection.insert({test: 1});
collection.update({test: 'B'}, {$set: {test: 'C'}});
expect(spy.callCount).to.equal(1);
subscriptionHandler.unsubscribe();
});
//.........這裏部分代碼省略.........
示例2: it
it ("Should trigger subscription callback when adding data to the collection", function() {
let spy = sinon.spy();
let subscriptionHandler = observable.subscribe(spy);
collection.insert({test: true});
expect(spy.calledOnce).to.equal(true);
subscriptionHandler.unsubscribe();
});