firefox-main/browser/components/shell/test/unit/test_writeShortcutIcon.js (file symbol)

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Test Info: Warnings

/* Any copyright is dedicated to the Public Domain.
"use strict";
ChromeUtils.defineESModuleGetters(this, {
ShellService: "moz-src:///browser/components/shell/ShellService.sys.mjs",
XPCOMUtils: "resource://gre/modules/XPCOMUtils.sys.mjs",
});
XPCOMUtils.defineLazyServiceGetters(this, {
imgTools: ["@mozilla.org/image/tools;1", Ci.imgITools],
});
let gPngImage;
let gSvgImage;
add_setup(async function loadImages() {
let pngFile = do_get_file("favicon-normal16.png");
gPngImage = imgTools.decodeImageFromArrayBuffer(
(await IOUtils.read(pngFile.path)).buffer,
"image/png"
);
let svgFile = do_get_file("icon.svg");
let svgUri = Services.io.newFileURI(svgFile);
let svgChannel = Services.io.newChannelFromURI(
svgUri,
null,
Services.scriptSecurityManager.getSystemPrincipal(),
null,
Ci.nsILoadInfo.SEC_ALLOW_CROSS_ORIGIN_SEC_CONTEXT_IS_NULL,
Ci.nsIContentPolicy.TYPE_IMAGE
);
gSvgImage = await ChromeUtils.fetchDecodedImage(svgUri, svgChannel);
});
/**
* Ensures that the file is an ICO file with the correct dimensions.
*
* Currently, this doesn't actually check the file's image data, since that's
* (a) difficult to do from JavaScript for raster files (especially given the
* scaling) and (b) not easy in general for vector files without just rewriting
* createWindowsIcon inline.
*
* @param {nsIFile} file - The file containing the image.
*/
async function verifyOutput(file) {
let image = imgTools.decodeImageFromArrayBuffer(
(await IOUtils.read(file.path)).buffer,
"image/vnd.microsoft.icon"
);
ok(image, "Image decoded successfully from its native format");
Assert.equal(image.width, 256, "Image is 256 pixels wide");
Assert.equal(image.height, 256, "Image is 256 pixels tall");
}
add_task(async function test_iconDimensions_raster() {
let tempFile = FileTestUtils.getTempFile();
await ShellService.createWindowsIcon(tempFile, gPngImage);
await verifyOutput(tempFile);
await IOUtils.remove(tempFile.path);
});
add_task(async function test_iconDimensions_vector() {
let tempFile = FileTestUtils.getTempFile();
await ShellService.createWindowsIcon(tempFile, gSvgImage);
await verifyOutput(tempFile);
await IOUtils.remove(tempFile.path);
});