1 files changed, 45 insertions, 0 deletions
diff --git a/dom/canvas/test/webgl-conf/checkout/conformance/glsl/functions/glsl-function-abs.html b/dom/canvas/test/webgl-conf/checkout/conformance/glsl/functions/glsl-function-abs.html
new file mode 100644
index 0000000000..e7e3b19207
--- /dev/null
+++ b/dom/canvas/test/webgl-conf/checkout/conformance/glsl/functions/glsl-function-abs.html
@@ -0,0 +1,45 @@
+<!--
+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>GLSL abs function test</title>
+<link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../../resources/glsl-feature-tests.css"/>
+<script src="../../../js/js-test-pre.js"></script>
+<script src="../../../js/webgl-test-utils.js"> </script>
+<script src="../../../js/glsl-generator.js"> </script>
+</head>
+<body>
+<div id="description"></div>
+<div id="console"></div>
+<script>
+"use strict";
+GLSLGenerator.runFeatureTest({
+  feature: "abs",
+  testFunc: "$(func)($(arg0))",
+  emuFunc: ["float $(func)_base(float value) {",
+            "  return value >= 0.0 ? value : -value;",
+            "}"].join("\n"),
+  gridRes: 4,
+  tests: [
+    ["$(output) = vec4(",
+     "    $(func)($(input).x * 2.0 - 1.0),",
+     "    0.5,",
+     "    0,",
+     "    1);"].join("\n"),
+    "$(output) = vec4(0, $(func)($(input).xy * 2.0 - vec2(1, 1)), 1);",
+    "$(output) = vec4($(func)($(input).xyz * 2.0 - vec3(1, 1, 1)), 1);",
+    "$(output) = $(func)($(input) * 2.0 - vec4(1, 1, 1, 1));"
+  ]
+});
+var successfullyParsed = true;
+</script>
+</body>
+</html>
+