From 6bbbbdb3a98953378e6054d6dfc9758bebd3351a Mon Sep 17 00:00:00 2001
From: Vladislav Chumak <v.chumak@sap.com>
Date: Wed, 25 Jul 2018 17:10:00 +0200
Subject: [PATCH] Improved performance benefit calculation and error message

---
 .../impl/IncrementalManeuverComputationTest.java           | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/java/com.sap.sailing.domain.test/src/com/sap/sailing/domain/maneuverdetection/impl/IncrementalManeuverComputationTest.java b/java/com.sap.sailing.domain.test/src/com/sap/sailing/domain/maneuverdetection/impl/IncrementalManeuverComputationTest.java
index 031f22ec7fa..572727bfa3b 100644
--- a/java/com.sap.sailing.domain.test/src/com/sap/sailing/domain/maneuverdetection/impl/IncrementalManeuverComputationTest.java
+++ b/java/com.sap.sailing.domain.test/src/com/sap/sailing/domain/maneuverdetection/impl/IncrementalManeuverComputationTest.java
@@ -130,11 +130,14 @@ public class IncrementalManeuverComputationTest extends AbstractManeuverDetectio
         performanceMeasurementStartedAt = System.currentTimeMillis();
         List<Maneuver> normallyDetectedManeuvers = normalManeuverDetector.detectManeuvers();
         long millisForNormalManeuverDetection = System.currentTimeMillis() - performanceMeasurementStartedAt;
+        int performanceBenefitOfIncrementalManeuverDetectionInPercent = (int) ((1.0 * (millisForNormalManeuverDetection - millisForIncrementalManeuverDetection)
+                / millisForNormalManeuverDetection) * 100);
         assertEquals("Incrementally calculated maneuvers differ from normally calculated maneuvers",
                 normallyDetectedManeuvers, incrementallyDetectedManeuvers);
         assertTrue(
-                "Incremental maneuver detection was not 20% faster in detecting maneuvers incrementally, than the full maneuver detection",
-                millisForIncrementalManeuverDetection * 1.2 < millisForNormalManeuverDetection);
+                "Incremental maneuver detection was not 20% faster in detecting maneuvers incrementally, than the full maneuver detection. The actual performance benefit was: "
+                        + performanceBenefitOfIncrementalManeuverDetectionInPercent + "%",
+                performanceBenefitOfIncrementalManeuverDetectionInPercent >= 20);
     }
 
 }