%PDF-
%PDF-
Mini Shell
Mini Shell
$(document).ready(function () {
"use strict";
var col;
module("Backbone.PageableCollection - Infinite", {
setup: function () {
col = new (Backbone.PageableCollection.extend({
url: "url"
}))([
{id: 1},
{id: 3},
{id: 2},
{id: 4}
], {
state: {
pageSize: 2,
currentPage: 2
},
mode: "infinite"
});
}
});
test("constructor", function () {
ok(col.fullCollection instanceof Backbone.Collection);
strictEqual(col.url, "url");
strictEqual(col.mode, "infinite");
strictEqual(col.state.totalRecords, 4);
deepEqual(col.links, {
"1": "url",
"2": "url"
});
deepEqual(col.toJSON(), [{id: 2}, {id: 4}]);
deepEqual(col.fullCollection.toJSON(), [{id: 1}, {id: 3}, {id: 2}, {id: 4}]);
col = new (Backbone.PageableCollection.extend({
url: "url"
}))(null, {
state: {
firstPage: 0
},
mode: "infinite"
});
ok(col.links[0] === "url");
});
test("parseLinks", function () {
var xhr = {
getResponseHeader: function (header) {
if (header.toLowerCase() == "link") {
return '<https://api.github.com/user/repos?page=3&per_page=2>; rel="next", <https://api.github.com/user/repos?page=50&per_page=2>; rel="last"';
}
return null;
}
};
var links = col.parseLinks({}, {xhr: xhr});
deepEqual(links, {
next: "https://api.github.com/user/repos?page=3&per_page=2"
});
xhr.getResponseHeader = function () {
return null;
};
links = col.parseLinks({}, {xhr: xhr});
deepEqual(links, {});
});
test("fetch", 3, function () {
var oldParse = col.parse;
col.parse = function () {
ok(true);
return oldParse.apply(this, arguments);
};
col.parseLinks = function () {
return {first: "url-1", next: "url-2"};
};
// makes sure collection events on the current page are not suppressed when
// refetching the same page
col.on("all", function (event) {
if (!_.contains(["request", "sync", "reset"], event)) {
ok(false);
}
});
col.fetch();
strictEqual(this.ajaxSettings.url, "url");
deepEqual(this.ajaxSettings.data, {
page: 2,
"per_page": 2,
"total_entries": 4,
"total_pages": 2
});
this.ajaxSettings.success([
{id: 1},
{id: 3}
]);
col.parse = oldParse;
});
test("get*Page", 53, function () {
var col = new (Backbone.PageableCollection.extend({
url: "url"
}))(null, {
state: {
pageSize: 2
},
mode: "infinite"
});
throws(function () {
col.getPage("nosuchpage");
});
sinon.spy(col, "parse");
sinon.stub(col, "parseLinks").returns({next: "url2", last: "lastUrl"});
var currentPageResetEventCount = 0;
col.on("reset", function () {
currentPageResetEventCount++;
});
var fullCollectionAddEventCount = 0;
col.fullCollection.on("add", function () {
fullCollectionAddEventCount++;
});
var fullCollectionRemoveEventCount = 0;
col.fullCollection.on("remove", function () {
fullCollectionRemoveEventCount++;
});
var fullCollectionResetEventCount = 0;
col.fullCollection.on("reset", function () {
fullCollectionResetEventCount++;
});
// test paging in the first page gets a page full of models and a link for
// the next page
col.getFirstPage({success: function () {
strictEqual(col.state.currentPage, col.state.firstPage);
strictEqual(col.state.totalRecords, 2);
strictEqual(col.state.totalPages, 1);
strictEqual(col.state.lastPage, 1);
strictEqual(col.fullCollection.length, 2);
deepEqual(col.links, {
"1": "url",
"2": "url2"
});
deepEqual(col.toJSON(), [{id: 2}, {id: 1}]);
deepEqual(col.fullCollection.toJSON(), [{id: 2}, {id: 1}]);
}});
this.ajaxSettings.success([
{id: 2},
{id: 1}
]);
equal(currentPageResetEventCount, 1);
equal(fullCollectionAddEventCount, 2);
equal(fullCollectionRemoveEventCount, 0);
equal(fullCollectionResetEventCount, 0);
equal(col.parse.callCount, 1);
currentPageResetEventCount = 0;
fullCollectionAddEventCount = 0;
fullCollectionRemoveEventCount = 0;
fullCollectionResetEventCount = 0;
col.parse.reset();
col.parseLinks.reset();
// test paging for a page that has a link but no models results in a fetch
col.parseLinks.returns({next: "url3"});
col.getNextPage({success: function () {
strictEqual(col.state.currentPage, 2);
strictEqual(col.state.totalRecords, 4);
strictEqual(col.state.totalPages, 2);
strictEqual(col.state.lastPage, 2);
strictEqual(col.fullCollection.length, 4);
deepEqual(col.links, {
"1": "url",
"2": "url2",
"3": "url3"
});
deepEqual(col.toJSON(), [{id: 3}, {id: 4}]);
deepEqual(col.fullCollection.toJSON(), [{id: 2}, {id: 1}, {id: 3}, {id: 4}]);
}});
this.ajaxSettings.success([
{id: 3},
{id: 4}
]);
equal(currentPageResetEventCount, 1);
equal(fullCollectionAddEventCount, 2);
equal(fullCollectionRemoveEventCount, 0);
equal(fullCollectionResetEventCount, 0);
equal(col.parse.callCount, 1);
currentPageResetEventCount = 0;
fullCollectionAddEventCount = 0;
fullCollectionRemoveEventCount = 0;
fullCollectionResetEventCount = 0;
col.parse.reset();
col.parseLinks.reset();
// test paging backward use cache
col.getPreviousPage();
strictEqual(col.parseLinks.called, false);
strictEqual(col.state.currentPage, 1);
strictEqual(col.state.totalRecords, 4);
strictEqual(col.state.totalPages, 2);
strictEqual(col.state.lastPage, 2);
strictEqual(col.fullCollection.length, 4);
deepEqual(col.links, {
"1": "url",
"2": "url2",
"3": "url3"
});
deepEqual(col.toJSON(), [{id: 2}, {id: 1}]);
deepEqual(col.fullCollection.toJSON(), [{id: 2}, {id: 1}, {id: 3}, {id: 4}]);
equal(currentPageResetEventCount, 1);
equal(fullCollectionAddEventCount, 0);
equal(fullCollectionRemoveEventCount, 0);
equal(fullCollectionResetEventCount, 0);
currentPageResetEventCount = 0;
// test paging to last page
col.getLastPage();
strictEqual(col.parseLinks.called, false);
strictEqual(col.state.currentPage, 2);
strictEqual(col.state.totalRecords, 4);
strictEqual(col.state.totalPages, 2);
strictEqual(col.state.lastPage, 2);
strictEqual(col.fullCollection.length, 4);
deepEqual(col.links, {
"1": "url",
"2": "url2",
"3": "url3"
});
deepEqual(col.toJSON(), [{id: 3}, {id: 4}]);
deepEqual(col.fullCollection.toJSON(), [{id: 2}, {id: 1}, {id: 3}, {id: 4}]);
equal(currentPageResetEventCount, 1);
equal(fullCollectionAddEventCount, 0);
equal(fullCollectionRemoveEventCount, 0);
equal(fullCollectionResetEventCount, 0);
col.parseLinks.restore();
});
test("hasNextPage and hasPreviousPage", function () {
var col = new (Backbone.PageableCollection.extend({
url: "url"
}))([
{id: 1},
{id: 2},
{id: 3}
], {
state: {
pageSize: 1
},
mode: "infinite"
});
strictEqual(col.hasPreviousPage(), false);
strictEqual(col.hasNextPage(), true);
col.getNextPage();
strictEqual(col.hasPreviousPage(), true);
strictEqual(col.hasNextPage(), true);
col.getLastPage();
strictEqual(col.hasPreviousPage(), true);
strictEqual(col.hasNextPage(), false);
});
});
Zerion Mini Shell 1.0