Test for ULTRA_QUALITY.

Author: Riyad Kalla

src/test/java/org/imgscalr/ScalrResizeTest.java

@@ -1,5 +1,7 @@
 package org.imgscalr;
 
+import java.awt.image.BufferedImage;
+
 import junit.framework.Assert;
 
 import org.imgscalr.Scalr.Method;
@@ -120,4 +122,16 @@ public void testResizeWHSpeedExactOps() {
 				Scalr.resize(src, Method.SPEED, Mode.FIT_EXACT, 640, 640,
 						Scalr.OP_GRAYSCALE));
 	}
+
+	@Test
+	public void testResizeUltraQuality() {
+		System.setProperty(Scalr.DEBUG_PROPERTY_NAME, "true");
+		BufferedImage i = new BufferedImage(32, 32, BufferedImage.TYPE_INT_RGB);
+		Scalr.resize(i, Method.ULTRA_QUALITY, 1);
+
+		// This test is really about having scaling to tiny sizes not looping
+		// forever because of the fractional step-down calculation bottoming
+		// out.
+		Assert.assertTrue(true);
+	}
 }