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Diffstat (limited to 'testing/web-platform/tests/html/canvas/element/manual/shadows/canvas_shadows_001.htm')
-rw-r--r-- | testing/web-platform/tests/html/canvas/element/manual/shadows/canvas_shadows_001.htm | 60 |
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diff --git a/testing/web-platform/tests/html/canvas/element/manual/shadows/canvas_shadows_001.htm b/testing/web-platform/tests/html/canvas/element/manual/shadows/canvas_shadows_001.htm new file mode 100644 index 0000000000..1763950d61 --- /dev/null +++ b/testing/web-platform/tests/html/canvas/element/manual/shadows/canvas_shadows_001.htm @@ -0,0 +1,60 @@ +<!doctype HTML> +<html> + <head> + <title>HTML5 Canvas Test: Shadows for linear gradients</title> + <script src="/resources/testharness.js"></script> + <script src="/resources/testharnessreport.js"></script> + <link rel="author" title="Microsoft" href="http://www.microsoft.com" /> + <link rel="help" href="http://www.w3.org/TR/2dcontext/#shadows" /> + <meta name="assert" content="Shadows must be drawn for linear gradients." /> + <script type="text/javascript"> + async_test(function(t) { + window.addEventListener("load", t.step_func_done(function runTest() { + var canvas = document.getElementById("canvas1"); + var ctx = canvas.getContext("2d"); + + // Draw a red rectangle. + ctx.fillStyle = "rgba(255, 0, 0, 1.0)"; + ctx.fillRect(150, 0, 100, 50); + + // Set shadow styles to draw a black shadow to overlap the red rectangle. + ctx.shadowOffsetX = 150; + ctx.shadowColor = "rgba(0, 0, 0, 1.0)"; + + // Draw a left to right, green-to-blue linear gradient. + var lingrad = ctx.createLinearGradient(0, 50, 100, 50); + lingrad.addColorStop(0, "rgba(0, 255, 0, 1.0)"); + lingrad.addColorStop(1, "rgba(0, 0, 255, 1.0)"); + ctx.fillStyle = lingrad; + ctx.fillRect(0, 0, 100, 50); + + // Check the red is gone + var data = ctx.getImageData(150, 0, 100, 50); + for (var i = 0; i < data.data.length; i += 4) { + var r = data.data[i]; + var g = data.data[i+1]; + var b = data.data[i+2]; + var a = data.data[i+3]; + assert_equals(r, 0, "r channel"); + assert_equals(g, 0, "g channel"); + assert_equals(b, 0, "b channel"); + assert_equals(a, 0xFF, "a channel"); + } + + for (var j = 0; j < data.data.length; j += 4) { + var r2 = data.data[j]; + var g2 = data.data[j+1]; + var b2 = data.data[j+2]; + var a2 = data.data[j+3]; + assert_false(r2 == 0xFF && g2 == 0 && b2 == 0 && a2 == 0xFF, "no red"); + } + })); + }, "linear gradient fillRect draws shadow (black rectange)"); + </script> + </head> + <body> + <p>Description: Shadows must be drawn for linear gradients.</p> + <p>Test passes if there is one gradient filled rectangle and one black rectangle, and no red seen on the page.</p> + <canvas id="canvas1" width="300" height="150">Browser does not support HTML5 Canvas.</canvas> + </body> +</html> |