2021-01-22  Kimmo Kinnunen  <kkinnunen@apple.com>

        WebGL powerPreference is not tested

        https://bugs.webkit.org/show_bug.cgi?id=220846

        Reviewed by NOBODY (OOPS!).

        WIP: placeholder

        * fast/canvas/webgl/high-performance-context-expected.txt: Added.

        * fast/canvas/webgl/high-performance-context.html: Added.

Tests that a high-performance contexts do not fail.

On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".

PASS gl.getContextAttributes().powerPreference is "high-performance"

PASS program != null is true

PASS getError was expected value: NO_ERROR : Should be no errors from setup.

PASS successfullyParsed is true

TEST COMPLETE

<!DOCTYPE html>

<html>

  <head>

  <meta charset="utf-8">

    <title>High performance WebGL context test</title>

    <script src="../../../resources/js-test.js"></script>

    <script src="resources/webgl-test.js"> </script>

    <script src="resources/webgl-test-utils.js"> </script>

</head>

<body>

<div id="description"></div>

<div id="console"></div>

<script>

description("Tests that a high-performance contexts do not fail.");

if (window.testRunner) {

    testRunner.dumpAsText();

    testRunner.waitUntilDone();

}

var wtu = WebGLTestUtils;

var canvas = document.createElement('canvas');

canvas.addEventListener("webglcontextchanged", () => {

    testRunner.notifyDone();

}, false);

var gl = wtu.create3DContext(canvas, { powerPreference: "high-performance" });

shouldBe("gl.getContextAttributes().powerPreference", '"high-performance"');

canvas.width = 200;

canvas.height = 200;

gl.viewport(0, 0, 0, 0);

var program = wtu.setupTexturedQuad(gl);

shouldBeTrue("program != null");

var tex = gl.createTexture();

gl.bindTexture(gl.TEXTURE_2D, tex);

var pixel = new Uint8Array([0, 255, 0, 255]);

gl.texImage2D(

  gl.TEXTURE_2D, 0, gl.RGBA, 1, 1, 0, gl.RGBA, gl.UNSIGNED_BYTE, pixel);

wtu.drawQuad(gl);

glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup.");

</script>

</body>

</html>