Test isCollapsed 
diff --git a/selecttest/isCollapsed.html b/selecttest/isCollapsed.html new file mode 100644 index 0000000..3b1dda3 --- /dev/null +++ b/selecttest/isCollapsed.html 
@@ -0,0 +1,30 @@ +<!doctype html> +<title>Selection.isCollapsed tests</title> +<div id=log></div> +<script src=http://w3c-test.org/resources/testharness.js></script> +<script src=common.js></script> +<script> +"use strict"; + +test(function() { +	selection.removeAllRanges(); +	assert_true(selection.isCollapsed, "isCollapsed must be true if both anchor and focus are null"); +}, "Empty selection"); + +for (var i = 0; i < testRanges.length; i++) { +	test(function() { +	selection.removeAllRanges(); +	var endpoints = eval(testRanges[i]); +	var range = ownerDocument(endpoints[0]).createRange(); +	range.setStart(endpoints[0], endpoints[1]); +	range.setEnd(endpoints[2], endpoints[3]); +	selection.addRange(range); + +	assert_equals(selection.isCollapsed, +	endpoints[0] === endpoints[2] && endpoints[1] === endpoints[3], +	"Value of isCollapsed"); +	}, "Range " + i + " " + testRanges[i]); +} + +testDiv.style.display = "none"; +</script>