Changeset 63839f for src/RandomNumbers/unittests/RandomNumberGeneratorUnitTest.cpp

Timestamp:

Feb 3, 2011, 9:59:58 AM (14 years ago)

Author:

Frederik Heber <heber@…>

Branches:

Action_Thermostats, Add_AtomRandomPerturbation, Add_FitFragmentPartialChargesAction, Add_RotateAroundBondAction, Add_SelectAtomByNameAction, Added_ParseSaveFragmentResults, AddingActions_SaveParseParticleParameters, Adding_Graph_to_ChangeBondActions, Adding_MD_integration_tests, Adding_ParticleName_to_Atom, Adding_StructOpt_integration_tests, AtomFragments, Automaking_mpqc_open, AutomationFragmentation_failures, Candidate_v1.5.4, Candidate_v1.6.0, Candidate_v1.6.1, ChangeBugEmailaddress, ChangingTestPorts, ChemicalSpaceEvaluator, CombiningParticlePotentialParsing, Combining_Subpackages, Debian_Package_split, Debian_package_split_molecuildergui_only, Disabling_MemDebug, Docu_Python_wait, EmpiricalPotential_contain_HomologyGraph, EmpiricalPotential_contain_HomologyGraph_documentation, Enable_parallel_make_install, Enhance_userguide, Enhanced_StructuralOptimization, Enhanced_StructuralOptimization_continued, Example_ManyWaysToTranslateAtom, Exclude_Hydrogens_annealWithBondGraph, FitPartialCharges_GlobalError, Fix_BoundInBox_CenterInBox_MoleculeActions, Fix_ChargeSampling_PBC, Fix_ChronosMutex, Fix_FitPartialCharges, Fix_FitPotential_needs_atomicnumbers, Fix_ForceAnnealing, Fix_IndependentFragmentGrids, Fix_ParseParticles, Fix_ParseParticles_split_forward_backward_Actions, Fix_PopActions, Fix_QtFragmentList_sorted_selection, Fix_Restrictedkeyset_FragmentMolecule, Fix_StatusMsg, Fix_StepWorldTime_single_argument, Fix_Verbose_Codepatterns, Fix_fitting_potentials, Fixes, ForceAnnealing_goodresults, ForceAnnealing_oldresults, ForceAnnealing_tocheck, ForceAnnealing_with_BondGraph, ForceAnnealing_with_BondGraph_continued, ForceAnnealing_with_BondGraph_continued_betteresults, ForceAnnealing_with_BondGraph_contraction-expansion, FragmentAction_writes_AtomFragments, FragmentMolecule_checks_bonddegrees, GeometryObjects, Gui_Fixes, Gui_displays_atomic_force_velocity, ImplicitCharges, IndependentFragmentGrids, IndependentFragmentGrids_IndividualZeroInstances, IndependentFragmentGrids_IntegrationTest, IndependentFragmentGrids_Sole_NN_Calculation, JobMarket_RobustOnKillsSegFaults, JobMarket_StableWorkerPool, JobMarket_unresolvable_hostname_fix, MoreRobust_FragmentAutomation, ODR_violation_mpqc_open, PartialCharges_OrthogonalSummation, PdbParser_setsAtomName, PythonUI_with_named_parameters, QtGui_reactivate_TimeChanged_changes, Recreated_GuiChecks, Rewrite_FitPartialCharges, RotateToPrincipalAxisSystem_UndoRedo, SaturateAtoms_findBestMatching, SaturateAtoms_singleDegree, StoppableMakroAction, Subpackage_CodePatterns, Subpackage_JobMarket, Subpackage_LinearAlgebra, Subpackage_levmar, Subpackage_mpqc_open, Subpackage_vmg, Switchable_LogView, ThirdParty_MPQC_rebuilt_buildsystem, TrajectoryDependenant_MaxOrder, TremoloParser_IncreasedPrecision, TremoloParser_MultipleTimesteps, TremoloParser_setsAtomName, Ubuntu_1604_changes, stable

Children:

a5028f

Parents:

5347cd

git-author:

Frederik Heber <heber@…> (01/15/11 14:38:57)

git-committer:

Frederik Heber <heber@…> (02/03/11 09:59:58)

Message:

RandomNumberGeneratorFactory does not clone anymore.

• cloning of the generator was nonsense, as (because of same seed), we always start at same random number sequence. I.e. if we often obtain new random number generator we hardly get random numbers.
• RandomNumberGeneratorFactory::makeRandomNumberGenerator() returns now reference to avoid accidental free'ing of the instance (that is still contained in the prototype table of the factory).
• unit test of RandomNumberGenerator now checks for non-copy received.
• RandomNumberGenerator()::get...Name() are now const members.
• in many cases where pointer *rng was received and ref &random obtained from it, we now receive ref directly (and then don't accidentally forget to delete the clone anymore. Which is good in any case!).

File:

• src/RandomNumbers/unittests/RandomNumberGeneratorUnitTest.cpp (modified) (2 diffs)

src/RandomNumbers/unittests/RandomNumberGeneratorUnitTest.cpp

@@ -50 +50 @@
 
 /** We check that the RandomNumberGenerator instance received
- * from the RandomNumberGeneratorFactory is truely a copy and
- * not the prototype instance.
+ * from the RandomNumberGeneratorFactory is truely the prototype
+ * itself.
  */
-void RandomNumberGeneratorTest::PrototypeCopyTest()
+void RandomNumberGeneratorTest::PrototypeNonCopyTest()
 {
-  RandomNumberGenerator *rng1 = RandomNumberGeneratorFactory::getInstance().makeRandomNumberGenerator();
-  RandomNumberGenerator *rng2 = RandomNumberGeneratorFactory::getInstance().makeRandomNumberGenerator();
+  RandomNumberGenerator &rng1 = RandomNumberGeneratorFactory::getInstance().makeRandomNumberGenerator();
+  RandomNumberGenerator &rng2 = RandomNumberGeneratorFactory::getInstance().makeRandomNumberGenerator();
 
-  double random1_1 = (*rng1)();
-  double random1_2 = (*rng1)();
-  double random2_1 = (*rng2)();
-  double random2_2 = (*rng2)();
-
-  CPPUNIT_ASSERT(random1_1 == random2_1);
-  CPPUNIT_ASSERT(random1_2 == random2_2);
-
-  delete rng1;
-  delete rng2;
+  // compare addresses in memory, have to be the same
+  CPPUNIT_ASSERT( &rng1 == &rng2 );
 }
 
@@ -74 +66 @@
   // obtain some random values for uniform_smallint
   RandomNumberGeneratorFactory::getInstance().setDistribution("uniform_smallint");
-  RandomNumberGenerator* rng = RandomNumberGeneratorFactory::getInstance().makeRandomNumberGenerator();
+  RandomNumberGenerator& rng = RandomNumberGeneratorFactory::getInstance().makeRandomNumberGenerator();
   for (size_t i=0; i < 1000; ++i) {
-    const int testint = (*rng)();
+    const int testint = rng();
     CPPUNIT_ASSERT_MESSAGE("randon number from uniform_smallint is out of [0:9]!", testint >= 0);
     CPPUNIT_ASSERT_MESSAGE("randon number from uniform_smallint is out of [0:9]!", testint <= 9);
   }
-  delete rng;
 }