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templating_tests.js
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templating_tests.js
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Tinytest.add("templating - assembly", function (test) {
// Test for a bug that made it to production -- after a replacement,
// we need to also check the newly replaced node for replacements
var frag = Meteor.ui.render(Template.test_assembly_a0);
test.equal(canonicalizeHtml(Meteor.ui._fragmentToHtml(frag)),
"Hi");
// Another production bug -- we must use LiveRange to replace the
// placeholder, or risk breaking other LiveRanges
Session.set("stuff", true); // XXX bad form to use Session in a test?
Template.test_assembly_b1.stuff = function () {
return Session.get("stuff");
};
var onscreen = DIV({style: "display: none"}, [
Meteor.ui.render(Template.test_assembly_b0)]);
document.body.appendChild(onscreen);
test.equal(canonicalizeHtml(onscreen.innerHTML), "xyhi");
Session.set("stuff", false);
Meteor.flush();
test.equal(canonicalizeHtml(onscreen.innerHTML), "xhi");
document.body.removeChild(onscreen);
});
// Test that if a template throws an error, then pending_partials is
// cleaned up properly (that template rendering doesn't break..)
Tinytest.add("templating - table assembly", function(test) {
var childWithTag = function(node, tag) {
return _.find(node.childNodes, function(n) {
return n.nodeName === tag;
});
};
var table;
table = childWithTag(Meteor.ui.render(Template.test_table_a0), "TABLE");
// table.rows is a great test, as it fails not only when TR/TD tags are
// stripped due to improper html-to-fragment, but also when they are present
// but don't show up because we didn't create a TBODY for IE.
test.equal(table.rows.length, 3);
// this time with an explicit TBODY
table = childWithTag(Meteor.ui.render(Template.test_table_b0), "TABLE");
test.equal(table.rows.length, 3);
var c = new LocalCollection();
c.insert({bar:'a'});
c.insert({bar:'b'});
c.insert({bar:'c'});
var onscreen = DIV({style: "display: none;"});
onscreen.appendChild(
Meteor.ui.render(_.bind(Template.test_table_each, null, {foo: c.find()})));
document.body.appendChild(onscreen);
table = childWithTag(onscreen, "TABLE");
test.equal(table.rows.length, 3, table.parentNode.innerHTML);
var tds = onscreen.getElementsByTagName("TD");
test.equal(tds.length, 3);
test.equal(tds[0].innerHTML, "a");
test.equal(tds[1].innerHTML, "b");
test.equal(tds[2].innerHTML, "c");
document.body.removeChild(onscreen);
});
Tinytest.add("templating - event handler this", function(test) {
Template.test_event_data_with.ONE = {str: "one"};
Template.test_event_data_with.TWO = {str: "two"};
Template.test_event_data_with.THREE = {str: "three"};
var event_buf = [];
var tmpl = OnscreenDiv(
Meteor.ui.render(
function() {
return Template.test_event_data_with(
Template.test_event_data_with.ONE);
},
{ events: { 'click': function() {
test.isTrue(this.str);
event_buf.push(this.str);
} }}));
var divs = tmpl.node().getElementsByTagName("div");
test.equal(3, divs.length);
clickElement(divs[0]);
test.equal(event_buf, ['one']);
event_buf.length = 0;
clickElement(divs[1]);
test.equal(event_buf, ['two']);
event_buf.length = 0;
clickElement(divs[2]);
test.equal(event_buf, ['three']);
event_buf.length = 0;
tmpl.kill();
Meteor.flush();
});
Tinytest.add("templating - safestring", function(test) {
Template.test_safestring_a.foo = function() {
return "1<2";
};
Template.test_safestring_a.bar = function() {
return new Handlebars.SafeString("3<4");
};
var obj = {fooprop: "1<2",
barprop: new Handlebars.SafeString("3<4")};
test.equal(Template.test_safestring_a(obj).replace(/\s+/g, ' '),
"1<2 1<2 3<4 3<4 1<2 3<4 "+
"1<2 1<2 3<4 3<4 1<2 3<4");
});
Tinytest.add("templating - helpers and dots", function(test) {
Handlebars.registerHelper("platypus", function() {
return "eggs";
});
Handlebars.registerHelper("watermelon", function() {
return "seeds";
});
Handlebars.registerHelper("daisygetter", function() {
return this.daisy;
});
var getFancyObject = function() {
return {
foo: 'bar',
apple: {banana: 'smoothie'},
currentFruit: function() {
return 'guava';
},
currentCountry: function() {
return {name: 'Iceland',
population: function() {
return 321007;
},
unicorns: 0, // falsy value
daisyGetter: function() {
return this.daisy;
}
};
}
};
};
Handlebars.registerHelper("fancyhelper", getFancyObject);
Template.test_helpers_a.platypus = 'bill';
Template.test_helpers_a.warthog = function() {
return 'snout';
};
var dataObj = {
zero: 0,
platypus: 'weird',
watermelon: 'rind',
daisy: 'petal',
tree: function() { return 'leaf'; },
thisTest: function() { return this.tree(); },
fancy: getFancyObject()
};
test.equal(Template.test_helpers_a(dataObj).match(/\S+/g), [
'platypus=bill', // helpers on Template object take first priority
'watermelon=seeds', // global helpers take second priority
'daisy=petal', // unshadowed object property
'tree=leaf', // function object property
'warthog=snout' // function Template property
]);
test.equal(Template.test_helpers_b(dataObj).match(/\S+/g), [
// unknown properties silently fail
'unknown=',
// falsy property comes through
'zero=0'
]);
test.equal(Template.test_helpers_c(dataObj).match(/\S+/g), [
// property gets are supposed to silently fail
'platypus.X=',
'watermelon.X=',
'daisy.X=',
'tree.X=',
'warthog.X='
]);
test.equal(Template.test_helpers_d(dataObj).match(/\S+/g), [
// helpers should get current data context in `this`
'daisygetter=petal',
// object methods should get current data context in `this`
'thisTest=leaf'
]);
test.equal(Template.test_helpers_e(dataObj).match(/\S+/g), [
'fancy.foo=bar',
'fancy.apple.banana=smoothie',
'fancy.currentFruit=guava',
'fancy.currentCountry.name=Iceland',
'fancy.currentCountry.population=321007',
'fancy.currentCountry.unicorns=0',
// all functions receive the current data context in `this`,
// for consistency
'fancy.currentCountry.daisyGetter=petal'
]);
test.equal(Template.test_helpers_f(dataObj).match(/\S+/g), [
'fancyhelper.foo=bar',
'fancyhelper.apple.banana=smoothie',
'fancyhelper.currentFruit=guava',
'fancyhelper.currentCountry.name=Iceland',
'fancyhelper.currentCountry.population=321007',
'fancyhelper.currentCountry.unicorns=0',
// all functions receive the current data context in `this`,
// for consistency
'fancyhelper.currentCountry.daisyGetter=petal'
]);
});