Write a bunch of tests for jsdomparser
Gijs Kruitbosch
9 years ago
parent
d0df9d8479
commit
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var path = require("path");
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var fs = require("fs");
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var chai = require("chai");
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chai.config.includeStack = true;
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var expect = chai.expect;
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// We want to load JSDOMParser, which isn't set up as commonjs libraries,
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// and so we need to do some hocus-pocus with 'vm' to import them on a separate scope
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// (identical) scope context.
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var vm = require("vm");
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var jsdomPath = path.join(__dirname, "..", "JSDOMParser.js");
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var scopeContext = {};
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// We generally expect dump() and console.{whatever} to work, so make these available
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// in the scope we're using:
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scopeContext.dump = console.log
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scopeContext.console = console;
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// Actually load file. NB: if the file has parse errors,
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// node is dumb and shows you a syntax error *at this callsite* . Don't try to find
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// a syntax error on this line, there isn't one. Go look in the file it's loading instead.
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vm.runInNewContext(fs.readFileSync(jsdomPath), scopeContext, jsdomPath);
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var JSDOMParser = scopeContext.JSDOMParser;
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var BASETESTCASE = '<html><body><p>Some text and <a class="someclass" href="#">a link</a></p>' +
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'<div id="foo">With a <script>With < fancy " characters in it because' +
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'</script> that is fun.<span>And another node to make it harder</span></div><form><input type="text"/><input type="number"/>Here\'s a form</form></body></html>';
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var baseDoc = new JSDOMParser().parse(BASETESTCASE);
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describe("Test JSDOM functionality", function() {
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function nodeExpect(actual, expected) {
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try {
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expect(actual).eql(expected);
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} catch (ex) {
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throw ex.message;
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}
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}
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it("should work for basic operations using the parent child hierarchy and innerHTML", function() {
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expect(baseDoc.childNodes.length).eql(1);
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expect(baseDoc.getElementsByTagName("*").length).eql(10);
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var foo = baseDoc.getElementById("foo");
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expect(foo.parentNode.localName).eql("body");
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nodeExpect(baseDoc.body, foo.parentNode);
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nodeExpect(baseDoc.body.parentNode, baseDoc.documentElement);
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expect(baseDoc.body.childNodes.length).eql(3);
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var generatedHTML = "<html>" + baseDoc.documentElement.innerHTML + "</html>";
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expect(generatedHTML).eql(BASETESTCASE);
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});
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it("should deal with script tags", function() {
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// Check our script parsing worked:
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var scripts = baseDoc.getElementsByTagName("script");
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expect(scripts.length).eql(1);
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expect(scripts[0].textContent).eql("With < fancy \" characters in it because");
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});
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it("should have working sibling/first+lastChild properties", function() {
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var foo = baseDoc.getElementById("foo");
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nodeExpect(foo.previousSibling.nextSibling, foo);
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nodeExpect(foo.nextSibling.previousSibling, foo);
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nodeExpect(foo.nextSibling, foo.nextElementSibling);
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nodeExpect(foo.previousSibling, foo.previousElementSibling);
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var beforeFoo = foo.previousSibling;
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var afterFoo = foo.nextSibling;
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nodeExpect(baseDoc.body.lastChild, afterFoo);
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nodeExpect(baseDoc.body.firstChild, beforeFoo);
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});
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it("should have working removeChild and appendChild functionality", function() {
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var foo = baseDoc.getElementById("foo");
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var beforeFoo = foo.previousSibling;
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var afterFoo = foo.nextSibling;
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var removedFoo = foo.parentNode.removeChild(foo);
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nodeExpect(foo, removedFoo);
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nodeExpect(foo.parentNode, null);
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nodeExpect(foo.previousSibling, null);
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nodeExpect(foo.nextSibling, null);
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nodeExpect(foo.previousElementSibling, null);
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nodeExpect(foo.nextElementSibling, null);
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expect(beforeFoo.localName).eql("p");
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nodeExpect(beforeFoo.nextSibling, afterFoo);
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nodeExpect(afterFoo.previousSibling, beforeFoo);
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nodeExpect(beforeFoo.nextElementSibling, afterFoo);
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nodeExpect(afterFoo.previousElementSibling, beforeFoo);
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expect(baseDoc.body.childNodes.length).eql(2);
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baseDoc.body.appendChild(foo);
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expect(baseDoc.body.childNodes.length).eql(3);
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nodeExpect(afterFoo.nextSibling, foo);
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nodeExpect(foo.previousSibling, afterFoo);
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nodeExpect(afterFoo.nextElementSibling, foo);
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nodeExpect(foo.previousElementSibling, afterFoo);
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// This should reorder back to sanity:
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baseDoc.body.appendChild(afterFoo);
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nodeExpect(foo.previousSibling, beforeFoo);
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nodeExpect(foo.nextSibling, afterFoo);
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nodeExpect(foo.previousElementSibling, beforeFoo);
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nodeExpect(foo.nextElementSibling, afterFoo);
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nodeExpect(foo.previousSibling.nextSibling, foo);
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nodeExpect(foo.nextSibling.previousSibling, foo);
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nodeExpect(foo.nextSibling, foo.nextElementSibling);
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nodeExpect(foo.previousSibling, foo.previousElementSibling);
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});
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it("should handle attributes", function() {
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var link = baseDoc.getElementsByTagName("a")[0];
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expect(link.getAttribute("href")).eql("#");
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expect(link.getAttribute("class")).eql(link.className);
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var foo = baseDoc.getElementById("foo");
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expect(foo.id).eql(foo.getAttribute("id"));
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});
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it("should have a working replaceChild", function() {
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var parent = baseDoc.getElementsByTagName('div')[0];
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var p = baseDoc.createElement("p");
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p.setAttribute("id", "my-replaced-kid");
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var childCount = parent.childNodes.length;
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var childElCount = parent.children.length;
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for (var i = 0; i < parent.childNodes.length; i++) {
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var replacedNode = parent.childNodes[i];
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var replacedAnElement = replacedNode.nodeType === replacedNode.ELEMENT_NODE;
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var oldNext = replacedNode.nextSibling;
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var oldNextEl = replacedNode.nextElementSibling;
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var oldPrev = replacedNode.previousSibling;
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var oldPrevEl = replacedNode.previousElementSibling;
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parent.replaceChild(p, replacedNode);
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// Check siblings and parents on both nodes were set:
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nodeExpect(p.nextSibling, oldNext);
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nodeExpect(p.previousSibling, oldPrev);
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nodeExpect(p.parentNode, parent);
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nodeExpect(replacedNode.parentNode, null);
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nodeExpect(replacedNode.nextSibling, null);
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nodeExpect(replacedNode.previousSibling, null);
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// if the old node was an element, element siblings should now be null
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if (replacedAnElement) {
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nodeExpect(replacedNode.nextElementSibling, null);
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nodeExpect(replacedNode.previousElementSibling, null);
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}
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// Check the siblings were updated
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if (oldNext)
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nodeExpect(oldNext.previousSibling, p);
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if (oldPrev)
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nodeExpect(oldPrev.nextSibling, p);
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// check the array was updated
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nodeExpect(parent.childNodes[i], p);
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// Now check element properties/lists:
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var kidElementIndex = parent.children.indexOf(p);
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// should be in the list:
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expect(kidElementIndex).not.eql(-1);
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if (kidElementIndex > 0) {
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nodeExpect(parent.children[kidElementIndex - 1], p.previousElementSibling);
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nodeExpect(p.previousElementSibling.nextElementSibling, p);
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} else {
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nodeExpect(p.previousElementSibling, null);
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}
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if (kidElementIndex < parent.children.length - 1) {
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nodeExpect(parent.children[kidElementIndex + 1], p.nextElementSibling);
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nodeExpect(p.nextElementSibling.previousElementSibling, p);
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} else {
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nodeExpect(p.nextElementSibling, null);
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}
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if (replacedAnElement) {
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nodeExpect(oldNextEl, p.nextElementSibling);
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nodeExpect(oldPrevEl, p.previousElementSibling);
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}
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expect(parent.childNodes.length).eql(childCount);
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expect(parent.children.length).eql(replacedAnElement ? childElCount : childElCount + 1);
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parent.replaceChild(replacedNode, p);
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nodeExpect(oldNext, replacedNode.nextSibling);
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nodeExpect(oldNextEl, replacedNode.nextElementSibling);
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nodeExpect(oldPrev, replacedNode.previousSibling);
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nodeExpect(oldPrevEl, replacedNode.previousElementSibling);
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if (replacedNode.nextSibling)
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nodeExpect(replacedNode.nextSibling.previousSibling, replacedNode);
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if (replacedNode.previousSibling)
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nodeExpect(replacedNode.previousSibling.nextSibling, replacedNode);
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if (replacedAnElement) {
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if (replacedNode.previousElementSibling)
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nodeExpect(replacedNode.previousElementSibling.nextElementSibling, replacedNode);
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if (replacedNode.nextElementSibling)
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nodeExpect(replacedNode.nextElementSibling.previousElementSibling, replacedNode);
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}
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}
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});
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});
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