third_party/WebKit/LayoutTests/fast/canvas/webgl/instanceof-test.html

   1
   2 <!DOCTYPE html>
   3 <html>
   4 <head>
   5 <meta charset="utf-8">
   6 <title>WebGL instanceof test.</title>
   7 <script src="../../../resources/js-test.js"></script>
   8 <script src="resources/webgl-test.js"> </script>
   9 <script src="resources/webgl-test-utils.js"> </script>
  10 </head>
  11 <body>
  12 <canvas id="canvas" width="2" height="2" style="width: 40px; height: 40px;"></canvas>
  13 <div id="description"></div>
  14 <div id="console"></div>
  15 <script id="vshader" type="x-shader/x-vertex">
  16 attribute vec4 vPosition;
  17 varying vec2 texCoord;
  18 void main()
  19 {
  20     gl_Position = vPosition;
  21 }
  22 </script>
  23
  24 <script id="fshader" type="x-shader/x-fragment">
  25 precision mediump float;
  26 uniform vec4 color;
  27 void main()
  28 {
  29     gl_FragColor = color;
  30 }
  31 </script>
  32 <script>
  33 var wtu = WebGLTestUtils;
  34 description(document.title);
  35 debug("Tests that instanceof works on WebGL objects.");
  36 debug("");
  37 var gl = create3DContext(document.getElementById("canvas"));
  38 shouldBeTrue('gl instanceof WebGLRenderingContext');
  39 shouldBeTrue('gl.createBuffer() instanceof WebGLBuffer');
  40 shouldBeTrue('gl.createFramebuffer() instanceof WebGLFramebuffer');
  41 shouldBeTrue('gl.createProgram() instanceof WebGLProgram');
  42 shouldBeTrue('gl.createRenderbuffer() instanceof WebGLRenderbuffer');
  43 shouldBeTrue('gl.createShader(gl.VERTEX_SHADER) instanceof WebGLShader');
  44 shouldBeTrue('gl.createTexture() instanceof WebGLTexture');
  45
  46 var program = wtu.setupProgram(
  47     gl,
  48     [wtu.loadShaderFromScript(gl, 'vshader', gl.VERTEX_SHADER),
  49      wtu.loadShaderFromScript(gl, 'fshader', gl.FRAGMENT_SHADER)],
  50     ['vPosition'], [0]);
  51
  52 shouldBeTrue('gl.getUniformLocation(program, "color") instanceof WebGLUniformLocation');
  53 shouldBeTrue('gl.getActiveAttrib(program, 0) instanceof WebGLActiveInfo');
  54 shouldBeTrue('gl.getActiveUniform(program, 0) instanceof WebGLActiveInfo');
  55
  56 debug("");
  57 debug("Tests that those WebGL objects can not be constructed through new operator");
  58 debug("");
  59
  60 function shouldThrowWithNew(objectType, objectName)
  61 {
  62     try {
  63         new objectType;
  64         testFailed('new ' + objectName + ' did not throw');
  65     } catch (e) {
  66         testPassed('new ' + objectName + ' threw an error');
  67     }
  68 }
  69
  70 shouldThrowWithNew(window.WebGLRenderingContext, 'WebGLRenderingContext');
  71 shouldThrowWithNew(window.WebGLActiveInfo, 'WebGLActiveInfo');
  72 shouldThrowWithNew(window.WebGLBuffer, 'WebGLBuffer');
  73 shouldThrowWithNew(window.WebGLFramebuffer, 'WebGLFramebuffer');
  74 shouldThrowWithNew(window.WebGLProgram, 'WebGLProgram');
  75 shouldThrowWithNew(window.WebGLRenderbuffer, 'WebGLRenderbuffer');
  76 shouldThrowWithNew(window.WebGLShader, 'WebGLShader');
  77 shouldThrowWithNew(window.WebGLTexture, 'WebGLTexture');
  78 shouldThrowWithNew(window.WebGLUniformLocation, 'WebGLUniformLocation');
  79 shouldThrowWithNew(window.WebGLShaderPrecisionFormat, 'WebGLShaderPrecisionFormat');
  80
  81 successfullyParsed = true;
  82 </script>
  83
  84 </body>
  85 </html>
  86
  87