tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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getContextAttributes.html (4047B)

      1 <!DOCTYPE html>
      2 <script src="/resources/testharness.js"></script>
      3 <script src="/resources/testharnessreport.js"></script>
      4 
      5 <script>
      6 
      7 var testScenarios = [
      8    // defaults
      9    {testDescription: "Test default context creation attributes",
     10        canvasContextAttributes: {},
     11        expectedContextAttributes: {
     12            alpha: true,
     13            desynchronized: false,
     14            willReadFrequently: false,
     15            colorSpace: "srgb",
     16            colorType:"unorm8"}},
     17    // alpha
     18    {testDescription: "Test context creation attributes alpha: true",
     19        canvasContextAttributes: {alpha: true},
     20        expectedContextAttributes: {alpha: true}},
     21    {testDescription: "Test context creation attributes alpha: false",
     22        canvasContextAttributes: {alpha: false},
     23        expectedContextAttributes: {alpha: false}},
     24    // colorSpace
     25    {testDescription: "Test context creation attributes colorSpace: 'srgb'",
     26        canvasContextAttributes: {colorSpace: "srgb"},
     27        expectedContextAttributes: {colorSpace: "srgb"}},
     28    {testDescription: "Test context creation attributes colorSpace: 'display-p3'",
     29        canvasContextAttributes: {colorSpace: "display-p3"},
     30        expectedContextAttributes: {colorSpace: "display-p3"}},
     31    // desynchronized
     32    {testDescription: "Test context creation attributes desynchronized: true",
     33        canvasContextAttributes: {desynchronized: true},
     34        expectedContextAttributes: {desynchronized: true}},
     35    {testDescription: "Test context creation attributes desynchronized: false",
     36        canvasContextAttributes: {desynchronized: false},
     37        expectedContextAttributes: {desynchronized: false}},
     38    // willReadFrequently
     39    {testDescription: "Test context creation attributes willReadFrequently: true",
     40        canvasContextAttributes: {willReadFrequently: true},
     41        expectedContextAttributes: {willReadFrequently: true}},
     42    {testDescription: "Test context creation attributes willReadFrequently: false",
     43        canvasContextAttributes: {willReadFrequently: false},
     44        expectedContextAttributes: {willReadFrequently: false}},
     45    // colorType
     46    {testDescription: "Test context creation attributes colorType: unorm8",
     47        canvasContextAttributes: {colorType: "unorm8"},
     48        expectedContextAttributes: {colorType: "unorm8"}},
     49    {testDescription: "Test context creation attributes colorType: float16",
     50        canvasContextAttributes: {colorType: "float16"},
     51        expectedContextAttributes: {colorType: "float16"}},
     52 ];
     53 
     54 function runTestScenario(canvas, testScenario) {
     55    var t = test(function() {
     56        var ctx = canvas.getContext('2d', testScenario.canvasContextAttributes);
     57        var contextAttributes = ctx.getContextAttributes();
     58        if (testScenario.expectedContextAttributes.alpha !== undefined) {
     59            assert_equals(contextAttributes.alpha,
     60                testScenario.expectedContextAttributes.alpha);
     61        }
     62        if (testScenario.expectedContextAttributes.colorSpace !== undefined) {
     63            assert_equals(contextAttributes.colorSpace,
     64                testScenario.expectedContextAttributes.colorSpace);
     65        }
     66        if (testScenario.expectedContextAttributes.desynchronized !== undefined) {
     67            assert_equals(contextAttributes.desynchronized,
     68                testScenario.expectedContextAttributes.desynchronized);
     69        }
     70        if (testScenario.expectedContextAttributes.willReadFrequently !== undefined) {
     71            assert_equals(contextAttributes.willReadFrequently,
     72                testScenario.expectedContextAttributes.willReadFrequently);
     73        }
     74        if (testScenario.expectedContextAttributes.colorType !== undefined) {
     75            assert_equals(contextAttributes.colorType,
     76                testScenario.expectedContextAttributes.colorType);
     77        }
     78    }, testScenario.testDescription);
     79 }
     80 
     81 function runAllTests() {
     82    for (var i = 0; i < testScenarios.length; i++) {
     83        runTestScenario(document.createElement('canvas'), testScenarios[i]);
     84    }
     85 }
     86 
     87 runAllTests();
     88 </script>