Index: trunk/test/functional/mapcss/performance/PerformanceTest.groovy
===================================================================
--- trunk/test/functional/mapcss/performance/PerformanceTest.groovy	(revision 4074)
+++ trunk/test/functional/mapcss/performance/PerformanceTest.groovy	(revision 4074)
@@ -0,0 +1,132 @@
+
+// License: GPL. For details, see LICENSE file.
+package mapcss.performance;
+
+import static org.junit.Assert.*
+
+import java.awt.Graphics2D
+import java.awt.image.BufferedImage
+
+import org.junit.*
+import org.openstreetmap.josm.Main
+import org.openstreetmap.josm.data.Bounds
+import org.openstreetmap.josm.data.osm.DataSet
+import org.openstreetmap.josm.data.osm.visitor.paint.MapPaintVisitor
+import org.openstreetmap.josm.gui.MainApplication
+import org.openstreetmap.josm.gui.layer.OsmDataLayer
+import org.openstreetmap.josm.gui.mappaint.MapPaintStyles
+import org.openstreetmap.josm.gui.mappaint.mapcss.MapCSSStyleSource
+import org.openstreetmap.josm.gui.preferences.SourceEntry
+import org.openstreetmap.josm.io.OsmReader
+
+/**
+ * This performance tests measures the time for a full run of MapPaintVisitor.visitAll()
+ * against a test data set using a test style.
+ * 
+ */
+class PerformanceTest {
+
+    /* ------------------------ configuration section  ---------------------------- */
+    /**
+    * The path to the JOSM home environment
+    */
+   def static JOSM_HOME="/my/josm/home/dir"
+   
+   /**
+    * The path to the style file used for rendering.
+    */
+   def static STYLE_FILE="/my/test-style.mapcss"
+
+   /**
+    * The data file to be rendered
+    */
+   def static DATA_FILE = "/my/test-data.osm"
+    /* ------------------------ / configuration section  ---------------------------- */     
+    
+    def DataSet ds
+    
+    def static boolean checkTestEnvironment() {
+          File f = new File(JOSM_HOME)
+          if  (!f.isDirectory() || !f.exists()) {
+              fail("JOSM_HOME refers to '${JOSM_HOME}. This is either not a directory or doesn't exist.\nPlease update configuration settings in the unit test file.")              
+          }
+          
+          f = new File(STYLE_FILE);
+          if ( !f.isFile() || ! f.exists()) {
+              fail("STYLE_FILE refers to '${STYLE_FILE}. This is either not a file or doesn't exist.\nPlease update configuration settings in the unit test file.")
+          }
+          
+          f = new File(DATA_FILE);
+          if ( !f.isFile() || ! f.exists()) {
+              fail("DATA_FILE refers to '${DATA_FILE}. This is either not a file or doesn't exist.\nPlease update configuration settings in the unit test file.")
+          }
+    }
+    
+    @BeforeClass
+    public static void createJOSMFixture(){
+        checkTestEnvironment()
+        System.setProperty("josm.home", JOSM_HOME)
+        MainApplication.main(new String[0])
+    }
+    
+    def timed(Closure c){
+        long before = System.currentTimeMillis()
+        c()
+        long after = System.currentTimeMillis()
+        return after - before
+    }
+    
+    def  loadStyle() {
+        print "Loading style '$STYLE_FILE' ..."
+        MapCSSStyleSource source = new MapCSSStyleSource(
+            new SourceEntry(
+                new File(STYLE_FILE).toURI().toURL().toString(),
+                "test style",
+                "a test style",
+                true // active
+            )
+        )
+        source.loadStyleSource()
+        if (!source.errors.isEmpty()) {
+            fail("Failed to load style file ''${STYLE_FILE}''. Errors: ${source.errors}")
+        }
+        MapPaintStyles.getStyles().clear()
+        MapPaintStyles.getStyles().add(source)
+        println "DONE"
+    }
+    
+    def loadData() {
+        print "Loading data file '$DATA_FILE' ..."
+        new File(DATA_FILE).withInputStream {
+            InputStream is ->
+            ds = OsmReader.parseDataSet(is,null)
+        }
+        Main.main.addLayer(new OsmDataLayer(ds,"test layer",null /* no file */));
+        println "DONE"
+    }
+    
+    @Test
+    public void measureTimeForStylePreparation() {
+        loadStyle()
+        loadData()
+        
+        def mv = Main.map.mapView
+        
+        BufferedImage img = mv.createImage(mv.getWidth(), mv.getHeight())
+        Graphics2D g = img.createGraphics()
+        g.setClip(0,0, mv.getWidth(), mv.getHeight())
+        def visitor = new MapPaintVisitor()
+        visitor.setNavigatableComponent(Main.map.mapView)
+        visitor.setGraphics(g)
+
+        print "Rendering ..."
+        long time = timed {
+            visitor.visitAll(ds, false, new Bounds(-90,-180,90,180))
+        }
+        println "DONE"
+        println "data file : ${DATA_FILE}"
+        println "style file: ${STYLE_FILE}"
+        println ""
+        println "Rendering took $time ms."       
+    }
+}