apply Kevin's refactoring

- lower case file names
- use define(function(require, exports, module) {..})

lib/ace/test/virtual_renderer_test.js

@@ -0,0 +1,48 @@
+/**
+ * Ajax.org Code Editor (ACE)
+ *
+ * @copyright 2010, Ajax.org Services B.V.
+ * @license LGPLv3 <http://www.gnu.org/licenses/lgpl-3.0.txt>
+ * @author Fabian Jakobs <fabian AT ajax DOT org>
+ */
+
+require.def([
+     "ace/Document",
+     "ace/VirtualRenderer"
+ ], function(
+     Document,
+     VirtualRenderer
+ ) {
+
+var VirtualRendererTest = new TestCase("VirtualRendererTest", {
+
+    "test: screen2text the column should be rounded to the next character edge" : function() {
+        var el = document.createElement("div");
+        el.style.left = "0px";
+        el.style.top = "0px";
+        el.style.width = "100px";
+        el.style.height = "100px";
+        document.body.style.margin = "0px";
+        document.body.style.padding = "0px";
+        document.body.appendChild(el);
+
+        var renderer = new VirtualRenderer(el);
+        renderer.setDocument(new Document("1234"));
+
+        renderer.characterWidth = 10;
+        renderer.lineHeight = 15;
+
+        assertPosition(0, 0, renderer.screenToTextCoordinates(0, 0));
+        assertPosition(0, 0, renderer.screenToTextCoordinates(4, 0));
+        assertPosition(0, 1, renderer.screenToTextCoordinates(5, 0));
+        assertPosition(0, 1, renderer.screenToTextCoordinates(9, 0));
+        assertPosition(0, 1, renderer.screenToTextCoordinates(10, 0));
+        assertPosition(0, 1, renderer.screenToTextCoordinates(14, 0));
+        assertPosition(0, 2, renderer.screenToTextCoordinates(15, 0));
+        document.body.removeChild(el);
+    }
+
+    // change tab size after setDocument (for text layer)
+});
+
+});