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Test Info: Warnings
- This test gets skipped with pattern: os == 'android'
- Manifest: devtools/server/tests/chrome/chrome.toml
<!DOCTYPE HTML>
<html>
<!--
-->
<head>
<meta charset="utf-8">
<script type="application/javascript" src="inspector-helpers.js"></script>
<script type="application/javascript">
"use strict";
window.onload = function() {
SimpleTest.waitForExplicitFinish();
runNextTest();
};
let gWalker = null;
addTest(async function setup() {
const url = document.getElementById("inspectorContent").href;
const { target } = await attachURL(url);
const inspector = await target.getFront("inspector");
gWalker = inspector.walker;
runNextTest();
});
addTest(async function testLargeImage() {
// Select the image node from the test page
const img = await gWalker.querySelector(gWalker.rootNode, ".big-horizontal");
ok(img, "Image node found in the test page");
ok(img.getImageData, "Image node has the getImageData function");
const imageData = await img.getImageData(100);
ok(imageData.data, "Image data actor was sent back");
ok(imageData.size, "Image size info was sent back too");
is(imageData.size.naturalWidth, 5333, "Natural width of the image correct");
is(imageData.size.naturalHeight, 3000, "Natural width of the image correct");
ok(imageData.size.resized, "Image was resized");
const str = await imageData.data.string();
ok(str, "We have an image data string!");
testResizing(imageData, str);
});
addTest(async function testLargeCanvas() {
// Select the canvas node from the test page
const canvas = await gWalker.querySelector(gWalker.rootNode, ".big-vertical");
ok(canvas, "Image node found in the test page");
ok(canvas.getImageData, "Image node has the getImageData function");
const imageData = await canvas.getImageData(350);
ok(imageData.data, "Image data actor was sent back");
ok(imageData.size, "Image size info was sent back too");
is(imageData.size.naturalWidth, 1000, "Natural width of the image correct");
is(imageData.size.naturalHeight, 2000, "Natural width of the image correct");
ok(imageData.size.resized, "Image was resized");
const str = await imageData.data.string();
ok(str, "We have an image data string!");
testResizing(imageData, str);
});
addTest(async function testSmallImage() {
// Select the small image node from the test page
const img = await gWalker.querySelector(gWalker.rootNode, ".small");
ok(img, "Image node found in the test page");
ok(img.getImageData, "Image node has the getImageData function");
const imageData = await img.getImageData();
ok(imageData.data, "Image data actor was sent back");
ok(imageData.size, "Image size info was sent back too");
is(imageData.size.naturalWidth, 245, "Natural width of the image correct");
is(imageData.size.naturalHeight, 240, "Natural width of the image correct");
ok(!imageData.size.resized, "Image was NOT resized");
const str = await imageData.data.string();
ok(str, "We have an image data string!");
testResizing(imageData, str);
});
addTest(async function testDataImage() {
// Select the data image node from the test page
const img = await gWalker.querySelector(gWalker.rootNode, ".data");
ok(img, "Image node found in the test page");
ok(img.getImageData, "Image node has the getImageData function");
const imageData = await img.getImageData(14);
ok(imageData.data, "Image data actor was sent back");
ok(imageData.size, "Image size info was sent back too");
is(imageData.size.naturalWidth, 28, "Natural width of the image correct");
is(imageData.size.naturalHeight, 28, "Natural width of the image correct");
ok(imageData.size.resized, "Image was resized");
const str = await imageData.data.string();
ok(str, "We have an image data string!");
testResizing(imageData, str);
});
addTest(async function testNonImgOrCanvasElements() {
const body = await gWalker.querySelector(gWalker.rootNode, "body");
await ensureRejects(body.getImageData(), "Invalid element");
runNextTest();
});
addTest(function cleanup() {
gWalker = null;
runNextTest();
});
/**
* Checks if the server told the truth about resizing the image
*/
function testResizing(imageData, str) {
const img = document.createElement("img");
img.addEventListener("load", () => {
const resized = !(img.naturalWidth == imageData.size.naturalWidth &&
img.naturalHeight == imageData.size.naturalHeight);
is(imageData.size.resized, resized, "Server told the truth about resizing");
runNextTest();
});
img.src = str;
}
/**
* Asserts that the given promise rejects.
*/
function ensureRejects(promise, desc) {
return promise.then(() => {
ok(false, desc + ": promise resolved unexpectedly.");
}, () => {
ok(true, desc + ": promise rejected as expected.");
});
}
</script>
</head>
<body>
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=932937">Mozilla Bug 932937</a>
<a id="inspectorContent" target="_blank" href="inspector_getImageData.html">Test Document</a>
<p id="display"></p>
<div id="content" style="display: none">
</div>
<pre id="test">
</pre>
</body>
</html>