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Bug 1275958 - Rewrite SDK 'Get Image' clipboard test to prevent its intermittent failures. r=mossop

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MozReview-Commit-ID: DHC9lsmNOXl

--HG--
extra : rebase_source : 69c572ae0df1a16ae0866e5e04ed3d3764e8a72a
This commit is contained in:
Luca Greco 2017-03-16 14:23:37 +01:00
parent 74b3bef8a5
commit 6e9cfad46e
1 changed files with 30 additions and 64 deletions
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94
addon-sdk/source/test/test-clipboard.js
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@ -7,12 +7,11 @@ require("sdk/clipboard");
const { Cc, Ci } = require("chrome");
const imageTools = Cc["@mozilla.org/image/tools;1"].
getService(Ci.imgITools);
const io = Cc["@mozilla.org/network/io-service;1"].
getService(Ci.nsIIOService);
const imageTools = Cc["@mozilla.org/image/tools;1"].getService(Ci.imgITools);
const io = Cc["@mozilla.org/network/io-service;1"].getService(Ci.nsIIOService);
const appShellService = Cc['@mozilla.org/appshell/appShellService;1'].getService(Ci.nsIAppShellService);
const XHTML_NS = "http://www.w3.org/1999/xhtml";
const base64png = "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACAAAAAgCAYA" +
"AABzenr0AAAASUlEQVRYhe3O0QkAIAwD0eyqe3Q993AQ3cBSUKpygfsNTy" +
"N5ugbQpK0BAADgP0BRDWXWlwEAAAAAgPsA3rzDaAAAAHgPcGrpgAnzQ2FG" +
@ -24,58 +23,6 @@ const { platform } = require("sdk/system");
// For Windows, Mac and Linux, platform returns the following: winnt, darwin and linux.
var isWindows = platform.toLowerCase().indexOf("win") == 0;
const canvasHTML = "data:text/html," + encodeURIComponent(
"<html>\
<body>\
<canvas width='32' height='32'></canvas>\
</body>\
</html>"
);
function comparePixelImages(imageA, imageB, callback) {
let tabs = require("sdk/tabs");
tabs.open({
url: canvasHTML,
onReady: function onReady(tab) {
let worker = tab.attach({
contentScript: "new " + function() {
let canvas = document.querySelector("canvas");
let context = canvas.getContext("2d");
self.port.on("draw-image", function(imageURI) {
let img = new Image();
img.onload = function() {
context.drawImage(this, 0, 0);
let pixels = Array.join(context.getImageData(0, 0, 32, 32).data);
self.port.emit("image-pixels", pixels);
}
img.src = imageURI;
});
}
});
let compared = "";
worker.port.on("image-pixels", function (pixels) {
if (!compared) {
compared = pixels;
this.emit("draw-image", imageB);
} else {
tab.close(callback.bind(null, compared === pixels))
}
});
worker.port.emit("draw-image", imageA);
}
});
}
// Test the typical use case, setting & getting with no flavors specified
exports["test With No Flavor"] = function(assert) {
var contents = "hello there";
@ -160,20 +107,39 @@ exports["test Set Image"] = function(assert) {
assert.equal(clip.currentFlavors[0], flavor, "flavor is set");
};
exports["test Get Image"] = function(assert, done) {
exports["test Get Image"] = function* (assert) {
var clip = require("sdk/clipboard");
clip.set(base64png, "image");
var contents = clip.get();
const hiddenWindow = appShellService.hiddenDOMWindow;
const Image = hiddenWindow.Image;
const canvas = hiddenWindow.document.createElementNS(XHTML_NS, "canvas");
let context = canvas.getContext("2d");
comparePixelImages(base64png, contents, function (areEquals) {
assert.ok(areEquals,
"Image gets from clipboard equals to image sets to the clipboard");
const imageURLToPixels = (imageURL) => {
return new Promise((resolve) => {
let img = new Image();
done();
});
}
img.onload = function() {
context.drawImage(this, 0, 0);
let pixels = Array.join(context.getImageData(0, 0, 32, 32).data);
resolve(pixels);
};
img.src = imageURL;
});
};
let [base64pngPixels, clipboardPixels] = yield Promise.all([
imageURLToPixels(base64png), imageURLToPixels(contents),
]);
assert.ok(base64pngPixels === clipboardPixels,
"Image gets from clipboard equals to image sets to the clipboard");
};
exports["test Set Image Type Not Supported"] = function(assert) {
var clip = require("sdk/clipboard");