After Enabling WebGL, 3D and compositing layout tests in bug 71849 I have observed this WebGL related problems: # WebGL related failures webgl/1.0.2/conformance/canvas/drawingbuffer-test.html [ Failure Pass ] webgl/1.0.2/conformance/extensions/oes-vertex-array-object.html [ Failure Pass ] webgl/1.0.2/conformance/textures/texture-formats-test.html [ Failure Pass ] webgl/1.0.3/conformance/context/context-hidden-alpha.html [ Failure Pass ] compositing/overlap-blending/children-opacity-huge.html [ ImageOnlyFailure Pass ] compositing/video/video-border-radius.html [ ImageOnlyFailure Pass ] # WebGL timeouts or slow tests. fast/canvas/webgl/oes-texture-half-float.html [ Slow ] webgl/1.0.2/conformance/context/context-creation-and-destruction.html [ Timeout ] webgl/1.0.2/conformance/extensions/oes-texture-float-with-video.html [ Timeout ] webgl/1.0.2/conformance/glsl/misc/shader-uniform-packing-restrictions.html [ Slow ] webgl/1.0.2/conformance/glsl/misc/shader-with-non-reserved-words.html [ Slow ] webgl/1.0.2/conformance/rendering/multisample-corruption.html [ Timeout ] webgl/1.0.2/conformance/textures/tex-image-and-sub-image-2d-with-video-rgb565.html [ Timeout ] webgl/1.0.2/conformance/textures/tex-image-and-sub-image-2d-with-video-rgba4444.html [ Timeout ] webgl/1.0.2/conformance/textures/tex-image-and-sub-image-2d-with-video-rgba5551.html [ Timeout ] webgl/1.0.2/conformance/textures/tex-image-and-sub-image-2d-with-video.html [ Timeout ] webgl/1.0.2/conformance/uniforms/gl-uniform-arrays.html [ Slow ] webgl/1.0.3/conformance/extensions/oes-texture-half-float-with-video.html [ Timeout ] webgl/1.0.3/conformance/glsl/bugs/complex-glsl-does-not-crash.html [ Slow ] webgl/1.0.3/conformance/glsl/bugs/temp-expressions-should-not-crash.html [ Slow ] webgl/1.0.3/conformance/textures/texture-upload-size.html [ Timeout ] webgl/1.0.2/conformance/uniforms/out-of-bounds-uniform-array-access.html [ Slow ] webgl/1.0.2/conformance/ogles/GL/atan/atan_001_to_008.html [ Slow ] webgl/1.0.2/conformance/uniforms/uniform-default-values.html [ Slow ] webgl/1.0.2/conformance/ogles/GL/pow/pow_009_to_016.html [ Slow ] webgl/1.0.2/conformance/ogles/GL/pow/pow_017_to_024.html [ Slow ] webgl/1.0.2/conformance/ogles/GL/reflect/reflect_001_to_006.html [ Slow ] webgl/1.0.2/conformance/ogles/GL/refract/refract_001_to_006.html [ Slow ] webgl/1.0.2/conformance/ogles/GL/swizzlers/swizzlers_097_to_104.html [ Slow ] webgl/1.0.2/conformance/ogles/GL/log/log_001_to_008.html [ Slow ] webgl/1.0.3/conformance/uniforms/uniform-values-per-program.html [ Slow ] webgl/1.0.3/conformance/context/context-eviction-with-garbage-collection.html [ Slow ] webgl/1.0.3/conformance/glsl/misc/struct-nesting-of-variable-names.html [ Slow ] webgl/max-active-contexts-webglcontextlost-prevent-default.html [ Timeout ] # WebGL crashes fast/canvas/webgl/webgl-draw-buffers.html [ Failure Crash ] webgl/1.0.3/conformance/extensions/webgl-draw-buffers.html [ Crash ]
Also this ones: fast/canvas/webgl/antialiasing-enabled.html [ Failure Pass ] fast/canvas/webgl/context-attributes-alpha-depth-stencil-antialias.html [ Failure ] fast/canvas/webgl/copyBufferSubData.html [ Failure ] fast/canvas/webgl/framebuffer-object-attachment.html [ Failure ] fast/canvas/webgl/getBufferSubData-webgl1.html [ Failure ] fast/canvas/webgl/glsl-conformance.html [ Failure ] fast/canvas/webgl/premultiplyalpha-test.html [ Failure ] fast/canvas/webgl/read-pixels-test.html [ Failure Pass ] fast/canvas/webgl/oes-vertex-array-object.html [ Failure Pass ] fast/canvas/webgl/unprefixed-anisotropic-extension.html [ Failure Pass ] webgl/1.0.2/conformance/canvas/buffer-offscreen-test.html [ Failure ] webgl/1.0.2/conformance/context/context-attribute-preserve-drawing-buffer.html [ Failure ] webgl/1.0.2/conformance/context/context-attributes-alpha-depth-stencil-antialias.html [ Failure ] webgl/1.0.2/conformance/context/premultiplyalpha-test.html [ Failure ] webgl/1.0.2/conformance/extensions/oes-texture-float.html [ Failure ] webgl/1.0.2/conformance/reading/read-pixels-test.html [ Failure Pass ] webgl/1.0.2/conformance/textures/copy-tex-image-2d-formats.html [ Failure ] webgl/1.0.2/conformance/textures/texture-attachment-formats.html [ Failure ] webgl/1.0.2/conformance/textures/texture-mips.html [ Failure ] webgl/1.0.2/conformance/textures/texture-npot.html [ Failure ] webgl/1.0.2/conformance/textures/texture-size-limit.html [ Failure ] webgl/1.0.3/conformance/attribs/gl-bindAttribLocation-aliasing.html [ Failure ] webgl/1.0.3/conformance/attribs/gl-bindAttribLocation-matrix.html [ Failure ] webgl/1.0.3/conformance/extensions/oes-texture-half-float.html [ Failure ] webgl/1.0.3/conformance/extensions/webgl-compressed-texture-size-limit.html [ Failure ] webgl/1.0.3/conformance/glsl/misc/shaders-with-invariance.html [ Failure ] webgl/1.0.3/conformance/glsl/misc/shaders-with-name-conflicts.html [ Failure ] webgl/1.0.3/conformance/renderbuffers/feedback-loop.html [ Failure ] webgl/1.0.3/conformance/rendering/point-no-attributes.html [ Failure ] webgl/1.0.3/conformance/textures/texture-copying-feedback-loops.html [ Failure ] webgl/many-contexts-access-after-loss.html [ Failure ] webgl/many-contexts.html [ Failure ] webgl/max-active-contexts-console-warning.html [ Failure ] webgl/max-active-contexts-gc.html [ Failure ] webgl/max-active-contexts-oldest-context-lost.html [ Failure ] webgl/webgl-vertex-array-object-defined.html [ Failure ] webgl/webgl-border.html [ ImageOnlyFailure ] webgl/webgl-box-shadow.html [ ImageOnlyFailure ]
There are some differences on the results of those test if you run then inside xvfb or on the native display (Xorg/X11 in my case with Intel GPU. glxinfo: http://sprunge.us/WBjL ). You can run them on the native display by passing --display-server=xorg to the script run-webkit-tests. Differences between --display-server=xorg and --display-server=xvfb : * webgl/1.0.2/conformance/textures/texture-mips.html and webgl/1.0.2/conformance/textures/texture-npot.html pass on native Xorg but fail on Xvfb. * webgl/1.0.3/conformance/extensions/webgl-draw-buffers.html crashes on Xvfb (crash log: http://sprunge.us/jTBV ) but fails (without crash) on native Xorg. * fast/canvas/webgl/drawingbuffer-test.html fast/canvas/webgl/webgl-depth-texture.html pass on Xvfb but fail on native Xorg. * More tests timeout or are slow on native Xorg.
Marked the test failing (and rebaselined others were the diff looked right) in https://trac.webkit.org/r214223
Marked the diff of failures (and passes) between Xvfb and native Wayland at: https://trac.webkit.org/changeset/214229/trunk/LayoutTests/platform/gtk-wayland/TestExpectations
I'm adding a Failure expectation for webgl/1.0.3/conformance/extensions/webgl-draw-buffers.html because it has now (for the first time) run without crashing. (But it prints FAIL instead of PASS.) I'm concerned by the very high number of failures in this bug. Oh well.
*** Bug 188102 has been marked as a duplicate of this bug. ***
According to https://build.webkit.org/builders/GTK%20Linux%2064-bit%20Release%20%28Tests%29/builds/11947/steps/layout-test/logs/stdio these tests actually pass just fine: webgl/1.0.3/conformance/extensions/oes-texture-half-float.html webgl/1.0.3/conformance/glsl/misc/shaders-with-name-conflicts.html webgl/1.0.3/conformance/rendering/point-no-attributes.html webgl/1.0.3/conformance/textures/texture-copying-feedback-loops.html webgl/1.0.3/conformance/textures/texture-size-limit.html since at least a few builds that I checked. Updating expectations.