third_party/WebKit/LayoutTests/fast/canvas/webgl/error-reporting.html

   1 <html>
   2 <head>
   3 <script src="../../../resources/js-test.js"></script>
   4 <script src="resources/webgl-test.js"></script>
   5 </head>
   6 <body>
   7 <div id="description"></div>
   8 <div id="console"></div>
   9
  10 <script>
  11 description("Tests generation of synthetic and real GL errors");
  12
  13 if (window.internals)
  14     window.internals.settings.setWebGLErrorsToConsoleEnabled(false);
  15
  16 var context = create3DContext();
  17 var program = loadStandardProgram(context);
  18
  19 // Other tests in this directory like getActiveTest and
  20 // incorrect-context-object-behaviour already test the raising of many
  21 // synthetic GL errors. This test verifies the raising of certain
  22 // known real GL errors, and contains a few regression tests for bugs
  23 // discovered in the synthetic error generation and in the WebGL
  24 // implementation itself.
  25
  26 glErrorShouldBe(context, context.NO_ERROR);
  27
  28 debug("Testing getActiveAttrib");
  29 // Synthetic OpenGL error
  30 shouldBeNull("context.getActiveAttrib(null, 2)");
  31 glErrorShouldBe(context, context.INVALID_VALUE);
  32 // Error state should be clear by this point
  33 glErrorShouldBe(context, context.NO_ERROR);
  34 // Real OpenGL error
  35 shouldBeNull("context.getActiveAttrib(program, 2)");
  36 glErrorShouldBe(context, context.INVALID_VALUE);
  37 // Error state should be clear by this point
  38 glErrorShouldBe(context, context.NO_ERROR);
  39
  40 debug("Testing getActiveUniform");
  41 // Synthetic OpenGL error
  42 shouldBeNull("context.getActiveUniform(null, 0)");
  43 glErrorShouldBe(context, context.INVALID_VALUE);
  44 // Error state should be clear by this point
  45 glErrorShouldBe(context, context.NO_ERROR);
  46 // Real OpenGL error
  47 shouldBeNull("context.getActiveUniform(program, 50)");
  48 glErrorShouldBe(context, context.INVALID_VALUE);
  49 // Error state should be clear by this point
  50 glErrorShouldBe(context, context.NO_ERROR);
  51
  52 debug("Testing attempts to manipulate the default framebuffer");
  53 shouldBeUndefined("context.bindFramebuffer(context.FRAMEBUFFER, null)");
  54 glErrorShouldBe(context, context.NO_ERROR);
  55 shouldBeUndefined("context.framebufferRenderbuffer(context.FRAMEBUFFER, context.DEPTH_ATTACHMENT, context.RENDERBUFFER, null)");
  56 // Synthetic OpenGL error
  57 glErrorShouldBe(context, context.INVALID_OPERATION);
  58 // Error state should be clear by this point
  59 glErrorShouldBe(context, context.NO_ERROR);
  60 shouldBeUndefined("context.framebufferTexture2D(context.FRAMEBUFFER, context.COLOR_ATTACHMENT0, context.TEXTURE_2D, null, 0)");
  61 // Synthetic OpenGL error
  62 glErrorShouldBe(context, context.INVALID_OPERATION);
  63 // Error state should be clear by this point
  64 glErrorShouldBe(context, context.NO_ERROR);
  65 </script>
  66
  67 </body>
  68 </html>