From 4af41b41f50e6af04f16b7aee6e51891ade2d421 Mon Sep 17 00:00:00 2001
From: Marc Jansen <jansen@terrestris.de>
Date: Tue, 17 Apr 2012 20:04:49 +0200
Subject: [PATCH] Added tests for ZoomIn control.

---
 tests/Control/ZoomIn.html | 85 +++++++++++++++++++++++++++++++++++++++
 tests/list-tests.html     |  1 +
 2 files changed, 86 insertions(+)
 create mode 100644 tests/Control/ZoomIn.html
diff --git a/tests/Control/ZoomIn.html b/tests/Control/ZoomIn.html
new file mode 100644
index 0000000000..3e955426c4
--- /dev/null
+++ b/tests/Control/ZoomIn.html
@@ -0,0 +1,85 @@
+<!DOCTYPE html>
+<html>
+    <head>
+        <script src="../OLLoader.js"></script>
+        <script type="text/javascript">
+        
+function test_ZoomIn_constructor (t) {
+    t.plan( 2 );
+    
+    // setup
+    var control = new OpenLayers.Control.ZoomIn();
+    
+    // tests
+    //
+    t.ok( 
+        control instanceof OpenLayers.Control.ZoomIn, 
+        "new OpenLayers.Control.ZoomOut returns object"
+    );
+    t.eq( 
+        control.displayClass, "olControlZoomIn", 
+        "displayClass is correct"
+    );
+    
+    // tear down
+    control.destroy();
+}
+
+function test_ZoomIn_trigger (t) {
+    t.plan( 2 );
+    
+    // set up
+    var control = new OpenLayers.Control.ZoomIn(),
+        zoomlevel = 5,
+        map = new OpenLayers.Map("map", {
+            allOverlays: true,
+            layers: [
+                new OpenLayers.Layer.Vector()
+            ],
+            center: new OpenLayers.LonLat(1,1),
+            zoom: zoomlevel
+        }),
+        oldZoom;
+    
+    alert(map.getZoom());
+    
+    oldZoom = map.getZoom();
+    
+    // tests
+    //
+    // trigger the control before it is being added,
+    // nothing should change
+    control.trigger();
+    
+    t.eq(
+        oldZoom, 
+        zoomlevel,
+        'Calling trigger on a non added control doesn\'t do anything ' +
+            '(map zoom is ' + oldZoom + ').'
+    );
+            
+    // now lets add the control
+    map.addControl(control);
+
+    // trigger it again, now the map should have a different extent
+    control.trigger();
+    
+    t.eq(
+        map.getZoom(),
+        zoomlevel + 1,
+        'Calling trigger on a added control changes the map zoom ' +
+            '(map zoom was ' + zoomlevel + 
+            ' and is now ' + map.getZoom() + ').'
+    );
+    
+    // tear down
+    control.destroy();
+    map.destroy();
+}
+    
+        </script>
+    </head>
+    <body>
+        <div id="map" style="width: 1000px; height: 1000px;"></div>
+    </body>
+</html>
diff --git a/tests/list-tests.html b/tests/list-tests.html
index dbf23429c4..eafd42abf0 100644
--- a/tests/list-tests.html
+++ b/tests/list-tests.html
@@ -49,6 +49,7 @@
     <li>Control/PanPanel.html</li>
     <li>Control/SLDSelect.html</li>
     <li>Control/Zoom.html</li>
+    <li>Control/ZoomIn.html</li>
     <li>Control/ZoomOut.html</li>
     <li>Control/ZoomToMaxExtent.html</li>
     <li>Events.html</li>
