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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /dom/base/test/test_fileapi_slice.html
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
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+<!DOCTYPE HTML>
+<html>
+<head>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=575946
+-->
+ <title>Test for Bug 575946</title>
+ <script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
+ <script type="text/javascript" src="fileutils.js"></script>
+ <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+
+<body>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=575946">Mozilla Bug 575946</a>
+<p id="display">
+ <canvas id=canvas width=1100 height=1100 hidden moz-opaque></canvas>
+ <canvas id=testcanvas hidden moz-opaque></canvas>
+ <input id="fileList" type="file"></input>
+</p>
+<div id="content" style="display: none">
+</div>
+
+<pre id="test">
+<script class="testbody" type="text/javascript">
+var fileNum = 1;
+SimpleTest.waitForExplicitFinish();
+
+// Create files containing data we'll test with. We'll want long
+// strings to ensure they span multiple buffers while loading
+
+// Create a decent-sized image
+cx = $("canvas").getContext('2d');
+var s = cx.canvas.width;
+var grad = cx.createLinearGradient(0, 0, s-1, s-1);
+for (i = 0; i < 0.95; i += .1) {
+ grad.addColorStop(i, "white");
+ grad.addColorStop(i + .05, "black");
+}
+grad.addColorStop(1, "white");
+cx.fillStyle = grad;
+cx.fillRect(0, 0, s-1, s-1);
+cx.fillStyle = "rgba(200, 0, 0, 0.9)";
+cx.fillRect(.1 * s, .1 * s, .7 * s, .7 * s);
+cx.strokeStyle = "rgba(0, 0, 130, 0.5)";
+cx.lineWidth = .14 * s;
+cx.beginPath();
+cx.arc(.6 * s, .6 * s, .3 * s, 0, Math.PI*2, true);
+cx.stroke();
+cx.closePath();
+cx.fillStyle = "rgb(0, 255, 0)";
+cx.beginPath();
+cx.arc(.1 * s, .8 * s, .1 * s, 0, Math.PI*2, true);
+cx.fill();
+cx.closePath();
+
+
+function imageLoadHandler(event) {
+ var origcanvas = $("canvas");
+ var testcanvas = $("testcanvas");
+ var image = event.target;
+ is(image.naturalWidth, origcanvas.width, "width correct");
+ is(image.naturalHeight, origcanvas.height, "height correct");
+
+ testcanvas.width = origcanvas.width;
+ testcanvas.height = origcanvas.height;
+ testcanvas.getContext("2d").drawImage(image, 0, 0);
+ // Do not use |is(testcanvas.toDataURL("image/png"), origcanvas.toDataURL("image/png"), "...");| that results in a _very_ long line.
+ var origDataURL = origcanvas.toDataURL("image/png");
+ var testDataURL = testcanvas.toDataURL("image/png");
+ is(testDataURL.length, origDataURL.length,
+ "Length of correct image data");
+ ok(testDataURL == origDataURL,
+ "Content of correct image data");
+
+ testHasRun();
+}
+
+var fileData =
+ atob(cx.canvas.toDataURL("image/png").substring("data:text/png;base64,".length + 1));
+var size = fileData.length;
+var testBinaryData = "";
+
+// This might fail if we dramatically improve the png encoder. If that happens
+// please increase the complexity or size of the image generated above to ensure
+// that we're testing with files that are large enough.
+ok(size > 65536, "test data sufficiently large");
+
+SpecialPowers.createFiles([{name: "basicTestFile", data: fileData}],
+ basicTest);
+
+function basicTest(files) {
+ var fileFile = files[0];
+
+ // Test that basic properties work
+ var memFile = cx.canvas.mozGetAsFile("image/png");
+ testSlice(memFile, size, "image/png", fileData, "memFile");
+ testSlice(fileFile, size, "", fileData, "fileFile");
+
+ // Try loading directly from slice into an image
+ for (var i = 0; i < 256; i++) {
+ testBinaryData += String.fromCharCode(i);
+ }
+ while (testBinaryData.length < 20000) {
+ testBinaryData += testBinaryData;
+ }
+
+ // image in the middle
+ SpecialPowers.createFiles([{name: "middleTestFile",
+ data: testBinaryData + fileData + testBinaryData}],
+ imageMiddleTest);
+}
+
+function imageMiddleTest(files) {
+ var imgfile = files[0];
+ is(imgfile.size, size + testBinaryData.length * 2, "correct file size (middle)");
+ var img = new Image;
+ img.src = URL.createObjectURL(imgfile.slice(testBinaryData.length, testBinaryData.length + size));
+ img.onload = imageLoadHandler;
+ expectedTestCount++;
+
+ // image at start
+ SpecialPowers.createFiles([{name: "startTestFile",
+ data: fileData + testBinaryData}],
+ imageStartTest);
+}
+
+function imageStartTest(files) {
+ var imgfile = files[0];
+ is(imgfile.size, size + testBinaryData.length, "correct file size (start)");
+ var img = new Image;
+ img.src = URL.createObjectURL(imgfile.slice(0, size));
+ img.onload = imageLoadHandler;
+ expectedTestCount++;
+
+ // image at end
+ SpecialPowers.createFiles([{name: "endTestFile",
+ data: testBinaryData + fileData}],
+ imageEndTest);
+}
+
+function imageEndTest(files) {
+ var imgfile = files[0];
+ is(imgfile.size, size + testBinaryData.length, "correct file size (end)");
+ var img = new Image;
+ img.src = URL.createObjectURL(imgfile.slice(testBinaryData.length, testBinaryData.length + size));
+ img.onload = imageLoadHandler;
+ expectedTestCount++;
+
+ // image past end
+ SpecialPowers.createFiles([{name: "pastEndTestFile",
+ data: testBinaryData + fileData}],
+ imagePastEndTest);
+}
+
+function imagePastEndTest(files) {
+ var imgfile = files[0];
+ is(imgfile.size, size + testBinaryData.length, "correct file size (past end)");
+ var img = new Image;
+ img.src = URL.createObjectURL(imgfile.slice(testBinaryData.length, testBinaryData.length + size + 1000));
+ img.onload = imageLoadHandler;
+ expectedTestCount++;
+}
+
+</script>
+</pre>
+</body>
+</html>
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