Bug 742781 - Chrome mochitest for WEBGL_debug_renderer_info extension - r=bz
authorBenoit Jacob <bjacob@mozilla.com>
Wed, 17 Oct 2012 15:11:59 -0400
changeset 110710 e78db739d5896d2b023f3c05f64169ff4470db47
parent 110709 756d555fc3bfab21090da03c6a7e4ed66b573761
child 110711 e85d04cf1ed522c22da04a793af6110bd1cbb166
push id93
push usernmatsakis@mozilla.com
push dateWed, 31 Oct 2012 21:26:57 +0000
reviewersbz
bugs742781
milestone19.0a1
Bug 742781 - Chrome mochitest for WEBGL_debug_renderer_info extension - r=bz
content/canvas/test/Makefile.in
content/canvas/test/chrome/Makefile.in
content/canvas/test/chrome/nonchrome_webgl_debug_renderer_info.html
content/canvas/test/chrome/test_webgl_debug_renderer_info.html
--- a/content/canvas/test/Makefile.in
+++ b/content/canvas/test/Makefile.in
@@ -3,17 +3,17 @@
 # License, v. 2.0. If a copy of the MPL was not distributed with this
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
 
 DEPTH		= @DEPTH@
 topsrcdir	= @top_srcdir@
 srcdir		= @srcdir@
 VPATH		= @srcdir@
 relativesrcdir  = @relativesrcdir@
-DIRS		+= webgl crossorigin
+DIRS		+= webgl crossorigin chrome
 
 # TEST_DIRS += compiled
 
 include $(DEPTH)/config/autoconf.mk
 MOCHITEST_FILES = \
 	test_canvas.html \
 	image_transparent50.png \
 	image_redtransparent.png \
new file mode 100644
--- /dev/null
+++ b/content/canvas/test/chrome/Makefile.in
@@ -0,0 +1,19 @@
+#
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+DEPTH           = @DEPTH@
+topsrcdir       = @top_srcdir@
+srcdir          = @srcdir@
+VPATH           = @srcdir@
+relativesrcdir  = @relativesrcdir@
+
+include $(DEPTH)/config/autoconf.mk
+
+MOCHITEST_CHROME_FILES = \
+	test_webgl_debug_renderer_info.html \
+	nonchrome_webgl_debug_renderer_info.html \
+	$(NULL)
+
+include $(topsrcdir)/config/rules.mk
new file mode 100644
--- /dev/null
+++ b/content/canvas/test/chrome/nonchrome_webgl_debug_renderer_info.html
@@ -0,0 +1,57 @@
+<!DOCTYPE HTML>
+<html>
+<script>
+
+// This file has the portion of the test_webgl_renderer_info chrome mochitest
+// that has to run as non-chrome to check that this WebGL extension is not exposed to content
+
+// we can't call the chrome Mochitest ok() function ourselves from non-chrome code.
+// So we remote it to the chrome test.
+
+function ok(res, msg) {
+  // Note we post to ourselves as posting to the chrome code doesn't seem to work here.
+  // This works by having the chrome code put an event handler on our own window.
+  window.postMessage({ subTestFinished: true, result: res, message: msg }, "*");
+}
+
+function messageListener(e) {
+  // This is how the chrome test tells us to start running -- we have to wait for this
+  // message to avoid running before it's set up its event handler.
+  if (e.data == "run") {
+    run();
+  }
+}
+
+window.addEventListener("message", messageListener, true);
+
+function run() {
+  const UNMASKED_VENDOR_WEBGL = 0x9245;
+  const UNMASKED_RENDERER_WEBGL = 0x9246;
+
+  var canvas = document.createElement("canvas");
+  var gl = canvas.getContext("experimental-webgl");
+
+  ok(!gl.getError(), "getError on newly created WebGL context should return NO_ERROR");
+
+  ok(!gl.getParameter(UNMASKED_VENDOR_WEBGL) && gl.getError() == gl.INVALID_ENUM,
+      "Should not be able to query UNMASKED_VENDOR_WEBGL without having enabled the WEBGL_debug_renderer_info extension");
+  ok(!gl.getParameter(UNMASKED_RENDERER_WEBGL) && gl.getError() == gl.INVALID_ENUM,
+      "Should not be able to query UNMASKED_RENDERER_WEBGL without having enabled the WEBGL_debug_renderer_info extension");
+
+  var exts = gl.getSupportedExtensions();
+  ok(exts.indexOf("WEBGL_debug_renderer_info") == -1,
+      "WEBGL_debug_renderer_info should not be listed by getSupportedExtensions in non-chrome contexts");
+  var debugRendererInfoExtension = gl.getExtension("WEBGL_debug_renderer_info");
+  ok(!debugRendererInfoExtension,
+      "WEBGL_debug_renderer_info should not be available through getExtension in non-chrome contexts");
+
+  ok(!gl.getParameter(UNMASKED_VENDOR_WEBGL) && gl.getError() == gl.INVALID_ENUM,
+      "Should not be able to query UNMASKED_VENDOR_WEBGL if enabling WEBGL_debug_renderer_info failed");
+  ok(!gl.getParameter(UNMASKED_RENDERER_WEBGL) && gl.getError() == gl.INVALID_ENUM,
+      "Should not be able to query UNMASKED_RENDERER_WEBGL if enabling WEBGL_debug_renderer_info failed");
+
+  window.postMessage({allTestsFinished: true}, "*");
+}
+
+</script>
+</html>
\ No newline at end of file
new file mode 100644
--- /dev/null
+++ b/content/canvas/test/chrome/test_webgl_debug_renderer_info.html
@@ -0,0 +1,90 @@
+<!DOCTYPE HTML>
+<html>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=666446
+-->
+<head>
+  <title>Test for WEBGL_debug_renderer_info chrome-only extension</title>
+  <script type="application/javascript" src="chrome://mochikit/content/MochiKit/packed.js"></script>
+  <script type="application/javascript" src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css" />
+</head>
+<body>
+
+<pre id="test">
+<script>
+
+const UNMASKED_VENDOR_WEBGL = 0x9245;
+const UNMASKED_RENDERER_WEBGL = 0x9246;
+
+function isNonEmptyString(s)
+{
+  return s && (typeof s) == "string";
+}
+
+function messageListener(e) {
+  if (e.data.allTestsFinished) {
+    SimpleTest.finish();
+  } else if (e.data.subTestFinished) {
+    ok(e.data.result, "content iframe: " + e.data.message);
+  }
+}
+
+function checkChromeCase(canvas) {
+
+  var gl = canvas.getContext("experimental-webgl");
+  ok(!gl.getError(), "getError on newly created WebGL context should return NO_ERROR");
+
+  ok(!gl.getParameter(UNMASKED_VENDOR_WEBGL) && gl.getError() == gl.INVALID_ENUM,
+     "Should not be able to query UNMASKED_VENDOR_WEBGL without having enabled the WEBGL_debug_renderer_info extension");
+  ok(!gl.getParameter(UNMASKED_RENDERER_WEBGL) && gl.getError() == gl.INVALID_ENUM,
+     "Should not be able to query UNMASKED_RENDERER_WEBGL without having enabled the WEBGL_debug_renderer_info extension");
+
+  var exts = gl.getSupportedExtensions();
+  ok(exts.indexOf("WEBGL_debug_renderer_info") != -1,
+     "WEBGL_debug_renderer_info should be listed by getSupportedExtensions in chrome contexts");
+  var debugRendererInfoExtension = gl.getExtension("WEBGL_debug_renderer_info");
+  ok(debugRendererInfoExtension,
+     "WEBGL_debug_renderer_info should be available through getExtension in chrome contexts");
+
+  ok(debugRendererInfoExtension.UNMASKED_VENDOR_WEBGL == UNMASKED_VENDOR_WEBGL,
+     "UNMASKED_VENDOR_WEBGL has the correct value");
+  ok(debugRendererInfoExtension.UNMASKED_RENDERER_WEBGL == UNMASKED_RENDERER_WEBGL,
+     "UNMASKED_RENDERER_WEBGL has the correct value");
+
+  ok(isNonEmptyString(gl.getParameter(UNMASKED_VENDOR_WEBGL)) && gl.getError() == gl.NO_ERROR,
+     "Should be able to query UNMASKED_VENDOR_WEBGL in chrome context with WEBGL_debug_renderer_info enabled");
+  ok(isNonEmptyString(gl.getParameter(UNMASKED_RENDERER_WEBGL)) && gl.getError() == gl.NO_ERROR,
+     "Should be able to query UNMASKED_RENDERER_WEBGL in chrome context with WEBGL_debug_renderer_info enabled");
+}
+
+function main()
+{
+  SimpleTest.waitForExplicitFinish();
+
+  checkChromeCase(document.createElement("canvas"));
+
+  // Now run the non-chrome code to verify the security of this WebGL chrome-only extension.
+
+  var iframe = document.createElement("iframe");
+  iframe.src = "http://mochi.test:8888/chrome/content/canvas/test/chrome/nonchrome_webgl_debug_renderer_info.html";
+
+  iframe.onload = function () {
+
+    // test that chrome can get WEBGL_debug_renderer_info on a canvas on the iframe...
+    // this is useful to check in itself, and is also useful so the subsequent non-chrome test
+    // will also test that doing so doesn't confuse our chrome-only check.
+    checkChromeCase(iframe.contentDocument.createElement("canvas"));
+
+    iframe.contentWindow.addEventListener("message", messageListener, false);
+    iframe.contentWindow.postMessage("run", "*");
+  };
+
+  document.body.appendChild(iframe);
+}
+
+window.onload = main;
+</script>
+</pre>
+</body>
+</html>