1 files changed, 63 insertions, 0 deletions
diff --git a/dom/canvas/test/webgl-conf/checkout/conformance2/glsl3/uniform-block-layouts.html b/dom/canvas/test/webgl-conf/checkout/conformance2/glsl3/uniform-block-layouts.html
new file mode 100644
index 0000000000..2dbfc664ee
--- /dev/null
+++ b/dom/canvas/test/webgl-conf/checkout/conformance2/glsl3/uniform-block-layouts.html
@@ -0,0 +1,63 @@
+<!--
+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>Disallowed uniform block layouts</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>
+<script src="../../js/glsl-conformance-test.js"></script>
+</head>
+<body>
+<div id="description"></div>
+<div id="console"></div>
+<script id="fshaderPackedUniformBlock" type="x-shader/x-fragment">#version 300 es
+precision mediump float;
+
+out vec4 my_FragColor;
+layout(packed) uniform foo {
+    vec4 bar;
+};
+
+void main() {
+    my_FragColor = bar;
+}
+</script>
+<script id="fshaderSharedUniformBlock" type="x-shader/x-fragment">#version 300 es
+precision mediump float;
+
+out vec4 my_FragColor;
+layout(shared) uniform foo {
+    vec4 bar;
+};
+
+void main() {
+    my_FragColor = bar;
+}
+</script>
+<script type="application/javascript">
+"use strict";
+description("WebGL does not allow interface blocks with shared or packed layouts.");
+
+GLSLConformanceTester.runTests([
+{
+  fShaderId: 'fshaderPackedUniformBlock',
+  fShaderSuccess: false,
+  passMsg: 'Packed uniform buffers are disallowed'
+},
+{
+  fShaderId: 'fshaderSharedUniformBlock',
+  fShaderSuccess: false,
+  passMsg: 'Shared uniform buffers are disallowed'
+}
+], 2);
+</script>
+</body>
+</html>
+