Bug 1533883 - Test loading XHTML with and without the prototype. r=smaug

Ensure the prototype is used when the pref is enabled and likewise when disabled. Also, compare the contents of the DOM with and without the prototype. Depends on D27745 Differential Revision: https://phabricator.services.mozilla.com/D27746 --HG-- extra : moz-landing-system : lando
2019-04-16 18:46:52 +00:00 · 2019-04-16 18:46:52 +00:00 · 05719da576
--- a/dom/prototype/moz.build
+++ b/dom/prototype/moz.build
@ -21,4 +21,6 @@ LOCAL_INCLUDES += [
    '/dom/xul',
 ]

+MOCHITEST_CHROME_MANIFESTS += ['tests/chrome/chrome.ini']
+
 FINAL_LIBRARY = 'xul'
--- a/dom/prototype/tests/chrome/chrome.ini
+++ b/dom/prototype/tests/chrome/chrome.ini
@ -0,0 +1,6 @@
+[DEFAULT]
+support-files =
+  whitespace.xhtml
+  no_whitespace.xhtml
+
+[test_prototype_document.xhtml]
--- a/dom/prototype/tests/chrome/no_whitespace.xhtml
+++ b/dom/prototype/tests/chrome/no_whitespace.xhtml
@ -0,0 +1,3 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/strict.dtd">
+<html xmlns="http://www.w3.org/TR/xhtml1/strict"><body>Hello<p>there!</p></body></html>
--- a/dom/prototype/tests/chrome/test_prototype_document.xhtml
+++ b/dom/prototype/tests/chrome/test_prototype_document.xhtml
@ -0,0 +1,66 @@
+<?xml version="1.0"?>
+<?xml-stylesheet type="text/css" href="chrome://global/skin"?>
+<?xml-stylesheet type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css"?>
+<window title="Test prototype document"
+        xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">
+  <script type="application/javascript"
+          src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="application/javascript"
+          src="chrome://mochikit/content/tests/SimpleTest/AddTask.js"></script>
+  <script><![CDATA[
+    SimpleTest.waitForExplicitFinish();
+  ]]></script>
+  <browser type="chrome" id="browser" flex="1"/>
+  <body xmlns="http://www.w3.org/1999/xhtml">
+<p id="display"></p>
+<div id="content" style="display: none">
+
+</div>
+<pre id="test">
+</pre>
+
+
+<script><![CDATA[
+
+async function load(frame, url) {
+  return new Promise((resolve) => {
+    frame.addEventListener("load", () => {
+      resolve();
+    }, {once: true});
+
+    if (frame.src === url) {
+      frame.reload();
+    } else {
+      frame.src = url;
+    }
+  });
+}
+
+// Load a file with and without the prototype document cache enabled.
+async function compare(filename) {
+  let browser = document.getElementById("browser");
+  // Load the page with no prototype document cache (the regular loading flow of
+  // an XHTML page).
+  await SpecialPowers.pushPrefEnv({ set: [["dom.prototype_document_cache.enabled", false]] });
+  await load(browser, filename);
+  ok(!browser.contentDocument.loadedFromPrototype, `${filename} should not use prototype.`);
+  const contentWithoutPrototype = browser.contentDocument.documentElement.outerHTML;
+
+  // Load the page with the prototype document cache enabled. The prototype should
+  // be built from the source file.
+  await SpecialPowers.pushPrefEnv({ set: [["dom.prototype_document_cache.enabled", true]] });
+  await load(browser, filename);
+  ok(browser.contentDocument.loadedFromPrototype, `${filename} should load from prototype.`);
+  const contentWithPrototype = browser.contentDocument.documentElement.outerHTML;
+  is(contentWithPrototype, contentWithoutPrototype, `${filename} document contents should be the same.`);
+}
+
+add_task(async function test_prototype_document() {
+  await compare("no_whitespace.xhtml");
+  await compare("whitespace.xhtml");
+  // TODO: Test whitespace within XUL elements, since it is handled differently
+  // with and without the prototype sink (bug 1544567).
+});
+]]></script>
+</body>
+</window>
--- a/dom/prototype/tests/chrome/whitespace.xhtml
+++ b/dom/prototype/tests/chrome/whitespace.xhtml
@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/strict.dtd">
+<html xmlns="http://www.w3.org/TR/xhtml1/strict">
+  <body>
+    Hello
+    <p>there!</p>
+  </body>
+</html>