Speed up EllipseTest

 - remove EllipseTest.testIterateOnce
 - do not create String objects in innermost loop

Author: hanslovsky

src/test/java/net/imglib2/algorithm/region/EllipseTest.java

@@ -9,38 +9,10 @@
 import net.imglib2.img.array.ArrayImgs;
 import net.imglib2.img.basictypeaccess.array.ShortArray;
 import net.imglib2.type.numeric.integer.UnsignedShortType;
-import net.imglib2.util.Util;
 
 public class EllipseTest
 {
 
-	@Test
-	public void testIterateOnce()
-	{
-		final ArrayImg< UnsignedShortType, ShortArray > img = ArrayImgs.unsignedShorts( 512l, 512l );
-
-		final Point center = new Point( 255l, 255l );
-
-		for ( long rx = 1l; rx < 56l; rx++ )
-		{
-			for ( long ry = 1l; ry < 56l; ry++ )
-			{
-				Ellipses.inc( img, center, rx, ry );
-				final EllipseCursor< UnsignedShortType > cursor = new EllipseCursor<>( img, center, rx, ry );
-				while ( cursor.hasNext() )
-				{
-					cursor.fwd();
-					assertEquals( "For radii (" + rx + ", " + ry + "), pixel at coordinates " +
-							Util.printCoordinates( cursor ) + " has not been iterated one time.",
-							1, cursor.get().get() );
-				}
-				// Reset image to 0.
-				for ( final UnsignedShortType p : img )
-					p.setZero();
-			}
-		}
-	}
-
 	@Test
 	public void testDistanceToCenter()
 	{
@@ -65,8 +37,7 @@ public void testDistanceToCenter()
 				}
 				final double dist = Math.sqrt( d2 );
 
-				assertEquals( "Ellipse coordinates " + Util.printCoordinates( cursor ) + " is too far from expected radius " + r + ".",
-						r, dist, 0.5 );
+				assertEquals( r, dist, 0.5 );
 			}
 		}
 	}