Making it so OpenLayers.Util.getResolutionFromScale returns undefined resolution when given a falsey scale. r=ahocevar (closes #2464, see #2462)

git-svn-id: http://svn.openlayers.org/trunk/openlayers@10019 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf
2010-02-04 17:02:23 +00:00
parent ae73ca0679
commit 37e881bc54
2 changed files with 16 additions and 10 deletions
@@ -670,7 +670,7 @@
    }
    
    function test_Util_getScaleResolutionTranslation(t) {
-        t.plan(4); 
+        t.plan(5); 
        
        var scale = 1/150000000; 
        var resolution = OpenLayers.Util.getResolutionFromScale(scale);
@@ -687,6 +687,11 @@
        scale = 150000000; 
        resolution = OpenLayers.Util.getResolutionFromScale(scale);
        t.eq(OpenLayers.Util.getScaleFromResolution(resolution), scale, "scale->resolution->scale works");
+        
+        scale = null;
+        resolution = OpenLayers.Util.getResolutionFromScale(scale);
+        t.eq(resolution, undefined, "falsey scale results in undefined resolution");
+        
    }
    
    function test_Util_getImgLocation(t) {