diff -r 000000000000 -r 6474c204b198 layout/reftests/bidi/unicode-bidi-isolate-basic.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/layout/reftests/bidi/unicode-bidi-isolate-basic.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,44 @@
+function buildTable()
+{
+    var seed = 0;
+
+    var neutrals = ['"', ")", "("];
+    var strongRTLs = ['א', 'ב', 'ג', 'ד', 'ה', 'ו', 'ז'];
+    var strongLTRs = ['a', 'b', 'c', 'd', 'e', 'f', 'g'];
+    var neutral = function() { return neutrals[seed++ % neutrals.length]; }
+    var strongRTL = function() { return strongRTLs[seed++ % strongRTLs.length]; }
+    var strongLTR = function() { return strongLTRs[seed++ % strongLTRs.length]; }
+    var charClassExamples = [neutral, strongRTL, strongLTR];
+    var possibleDirs = ['ltr', 'rtl'];
+
+    var elem=document.getElementById("elem");
+    for (outerDirIndex in possibleDirs) {
+	var outerDir = possibleDirs[outerDirIndex];
+	for (beforeSpanIndex in charClassExamples) {
+            var beforeSpan = charClassExamples[beforeSpanIndex];
+            for (spanDirIndex in possibleDirs) {
+		var spanDir = possibleDirs[spanDirIndex];
+		for (inSpanIndex in charClassExamples) {
+                    var inSpan = charClassExamples[inSpanIndex];
+                    for (afterSpanIndex in charClassExamples) {
+			var afterSpan = charClassExamples[afterSpanIndex];
+			function caseWithStyle() {
+                            seed = 0;
+                            var outerDiv = document.createElement("div");
+                            outerDiv.dir = outerDir;
+                            outerDiv.appendChild(document.createTextNode(beforeSpan()));
+                            var span = document.createElement("span");
+                            span.dir = spanDir;
+                            span.setAttribute("class", "enclosed")
+                            span.appendChild(document.createTextNode(inSpan()));
+                            outerDiv.appendChild(span);
+                            outerDiv.appendChild(document.createTextNode(afterSpan()));
+                            return outerDiv;
+			}
+			elem.appendChild(caseWithStyle());
+                    }
+		}
+            }
+	}
+    }
+}