1 files changed, 69 insertions, 0 deletions
diff --git a/dom/canvas/test/webgl-conf/checkout/conformance/buffers/element-array-buffer-delete-recreate.html b/dom/canvas/test/webgl-conf/checkout/conformance/buffers/element-array-buffer-delete-recreate.html
new file mode 100644
index 0000000000..d4fb81af9b
--- /dev/null
+++ b/dom/canvas/test/webgl-conf/checkout/conformance/buffers/element-array-buffer-delete-recreate.html
@@ -0,0 +1,69 @@
+<!--
+Copyright (c) 2019 The Khronos Group Inc.
+Use of this source code is governed by an MIT-style license that can be
+found in the LICENSE.txt file.
+-->
+<!DOCTYPE html>
+<html>
+<head>
+<meta charset="utf-8">
+  <title>Element Array Buffer Deletion and Recreation Test</title>
+  <link rel="stylesheet" href="../../resources/js-test-style.css"/>
+  <script src="../../js/js-test-pre.js"></script>
+  <script src="../../js/webgl-test-utils.js"> </script>
+</head>
+<body>
+<canvas id="example" width="32" height="32"></canvas>
+<div id="description"></div>
+<div id="console"></div>
+<script>
+"use strict";
+var wtu = WebGLTestUtils;
+function init()
+{
+  description();
+
+  // Clear the background with red.
+  var gl = wtu.create3DContext("example");
+  wtu.setupSimpleColorProgram(gl);
+  var color = [0, 255, 0, 255];
+  wtu.setUByteDrawColor(gl, color);
+
+  var vertexBuffer = gl.createBuffer();
+  gl.bindBuffer(gl.ARRAY_BUFFER, vertexBuffer);
+  gl.bufferData(gl.ARRAY_BUFFER, new Float32Array([
+    -1, -1,
+     1, -1,
+    -1,  1,
+     1,  1
+  ]), gl.STATIC_DRAW);
+  gl.enableVertexAttribArray(0);
+  gl.vertexAttribPointer(0, 2, gl.FLOAT, false, 0, 0);
+
+  // Create an element array buffer.
+  var indexBuffer = gl.createBuffer();
+  gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, indexBuffer);
+  gl.bufferData(gl.ELEMENT_ARRAY_BUFFER, new Uint8Array([0, 1, 2, 3]), gl.STATIC_DRAW);
+
+  // Delete the element array buffer.
+  gl.deleteBuffer(indexBuffer);
+
+  // Create a new element array buffer.
+  indexBuffer = gl.createBuffer();
+  gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, indexBuffer);
+  gl.bufferData(gl.ELEMENT_ARRAY_BUFFER, new Uint8Array([0, 1, 2, 3]), gl.STATIC_DRAW);
+
+  // Draw with the new element array buffer.
+  // If the geometry is drawn successfully, the fragment shader will color it green.
+  gl.drawElements(gl.TRIANGLE_STRIP, 4, gl.UNSIGNED_BYTE, 0);
+
+  wtu.glErrorShouldBe(gl, gl.NO_ERROR, "no errors from draw");
+  wtu.checkCanvas(gl, color, "should be green")
+}
+
+init();
+var successfullyParsed = true;
+</script>
+<script src="../../js/js-test-post.js"></script>
+</body>
+</html>