From f8db509725cbb43ff4a7c2c3fcd1e0867c8a6075 Mon Sep 17 00:00:00 2001
From: crschmidt <crschmidt@crschmidt.net>
Date: Wed, 23 Feb 2011 22:24:35 +0000
Subject: [PATCH] Test that getLonLatFromPixel and getPixelFromLonLat are
 inverses of each other (within a reasonable tolerance)

git-svn-id: http://svn.openlayers.org/trunk/openlayers@11374 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf
---
 tests/Map.html | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/tests/Map.html b/tests/Map.html
index 13712f81af..12841e7cfd 100644
--- a/tests/Map.html
+++ b/tests/Map.html
@@ -1667,6 +1667,25 @@
         map.destroy();
         
     }
+    function test_pixel_lonlat(t) {
+        
+        t.plan(4);
+
+        var map = new OpenLayers.Map({
+            div: "map",
+            layers: [
+                new OpenLayers.Layer("name", {isBaseLayer:true})
+            ]
+        });
+        map.zoomToMaxExtent();
+        var px = map.getPixelFromLonLat(map.getLonLatFromPixel(new OpenLayers.Pixel(100, 100)));
+        t.eq(px.x, 100, "x is the same in and ot");
+        t.eq(px.y, 100, "y is the same in and out");
+        var ll = map.getLonLatFromPixel(map.getPixelFromLonLat(new OpenLayers.LonLat(100, 100)));
+        t.ok((ll.lon > (100 -map.getResolution()) && (ll.lon < (100 + map.getResolution()))), "lon is the same in and ot");
+        t.ok((ll.lat > (100 -map.getResolution()) && (ll.lat < (100 + map.getResolution()))), "lat is the same in and ot");
+        map.destroy();
+    }    
 
   </script>
 </head>