refs #6449 should fix MDEvent performance test

as there are sum of really large numbers which will not be calculated with abserr=1.e-7. Reller ~1.e-7 is more appropriate.
mantidproject · Apr 17, 2013 · b29d5ae · b29d5ae
1 parent 08511ce
commit b29d5ae
Showing 1 changed file with 10 additions and 4 deletions.
diff --git a/Code/Mantid/Framework/MDEvents/test/MDEventTest.h b/Code/Mantid/Framework/MDEvents/test/MDEventTest.h
@@ -318,8 +318,10 @@ class MDEventTestPerformance :  public CxxTest::TestSuite
       TS_ASSERT_THROWS_NOTHING(MDLeanEvent<3>::eventsToData(events,data,ncols,totalSignal,totalErrSq));
       TS_ASSERT_EQUALS(3+2,ncols);
       TS_ASSERT_EQUALS((3+2)*nPoints,data.size());
-      TS_ASSERT_DELTA(sumGuess,totalSignal,1.e-7);
-      TS_ASSERT_DELTA(errGuess,totalErrSq,1.e-7);
+      double relerr = 2*std::fabs(sumGuess-totalSignal)/(sumGuess+totalSignal);
+      TS_ASSERT_DELTA(0.,relerr,1.e-7);
+      relerr = 2*std::fabs(errGuess-totalErrSq)/(errGuess+totalErrSq);
+      TS_ASSERT_DELTA(0,relerr,1.e-7);
 
 
       std::vector<MDLeanEvent<3> > transfEvents;
@@ -353,8 +355,12 @@ class MDEventTestPerformance :  public CxxTest::TestSuite
       TS_ASSERT_THROWS_NOTHING(MDEvent<4>::eventsToData(events,data,ncols,totalSignal,totalErrSq));
       TS_ASSERT_EQUALS(4+4,ncols);
       TS_ASSERT_EQUALS((4+4)*nPoints,data.size());
-      TS_ASSERT_DELTA(sumGuess,totalSignal,1.e-7);
-      TS_ASSERT_DELTA(errGuess,totalErrSq,1.e-7);
+
+      double relerr = 2*std::fabs(sumGuess-totalSignal)/(sumGuess+totalSignal);
+      TS_ASSERT_DELTA(0.,relerr,1.e-7);
+      relerr = 2*std::fabs(errGuess-totalErrSq)/(errGuess+totalErrSq);
+      TS_ASSERT_DELTA(0,relerr,1.e-7);
+
 
       std::vector<MDEvent<4> > transfEvents;
       TS_ASSERT_THROWS_NOTHING(MDEvent<4>::dataToEvents(data,transfEvents));