Program: 69991
Project: 69991
Buggy source:
@Test public void findBusinessGroupsOfAreaAttendedBy(){
  Identity id1=JunitTestHelper.createAndPersistIdentityAsUser("String_Node_Str" + UUID.randomUUID().toString());
  Identity id2=JunitTestHelper.createAndPersistIdentityAsUser("String_Node_Str" + UUID.randomUUID().toString());
  Identity id3=JunitTestHelper.createAndPersistIdentityAsUser("String_Node_Str" + UUID.randomUUID().toString());
  OLATResource resource=JunitTestHelper.createRandomResource();
  String areaName=UUID.randomUUID().toString();
  BGArea area1=areaManager.createAndPersistBGAreaIfNotExists("String_Node_Str" + areaName,"String_Node_Str" + areaName,resource);
  BGArea area2=areaManager.createAndPersistBGAreaIfNotExists("String_Node_Str" + areaName,"String_Node_Str" + areaName,resource);
  BusinessGroup group1=businessGroupService.createBusinessGroup(null,"String_Node_Str","String_Node_Str",0,-1,false,false,resource);
  BusinessGroup group2=businessGroupService.createBusinessGroup(null,"String_Node_Str","String_Node_Str",0,-1,false,false,resource);
  BusinessGroup group3=businessGroupService.createBusinessGroup(null,"String_Node_Str","String_Node_Str",0,-1,false,false,resource);
  dbInstance.commitAndCloseSession();
  areaManager.addBGToBGArea(group1,area1);
  areaManager.addBGToBGArea(group2,area1);
  areaManager.addBGToBGArea(group2,area2);
  areaManager.addBGToBGArea(group3,area1);
  dbInstance.commitAndCloseSession();
  securityManager.addIdentityToSecurityGroup(id1,group1.getPartipiciantGroup());
  securityManager.addIdentityToSecurityGroup(id2,group2.getPartipiciantGroup());
  securityManager.addIdentityToSecurityGroup(id2,group3.getPartipiciantGroup());
  securityManager.addIdentityToSecurityGroup(id3,group3.getPartipiciantGroup());
  dbInstance.commitAndCloseSession();
  List<BusinessGroup> groupId1=areaManager.findBusinessGroupsOfAreaAttendedBy(id1,null,resource);
  Assert.assertNotNull(groupId1);
  Assert.assertEquals(1,groupId1.size());
  Assert.assertTrue(groupId1.contains(group1));
  List<BusinessGroup> groupId1Area2=areaManager.findBusinessGroupsOfAreaAttendedBy(id1,"String_Node_Str" + areaName,resource);
  Assert.assertNotNull(groupId1Area2);
  Assert.assertEquals(0,groupId1Area2.size());
  List<BusinessGroup> groupId2Area1=areaManager.findBusinessGroupsOfAreaAttendedBy(id2,"String_Node_Str" + areaName,resource);
  Assert.assertNotNull(groupId2Area1);
  Assert.assertEquals(2,groupId2Area1.size());
  Assert.assertTrue(groupId2Area1.contains(group2));
  Assert.assertTrue(groupId2Area1.contains(group3));
}

Fixed version (ground truth):
@Test public void findBusinessGroupsOfAreaAttendedBy(){
  Identity id1=JunitTestHelper.createAndPersistIdentityAsUser("String_Node_Str" + UUID.randomUUID().toString());
  Identity id2=JunitTestHelper.createAndPersistIdentityAsUser("String_Node_Str" + UUID.randomUUID().toString());
  Identity id3=JunitTestHelper.createAndPersistIdentityAsUser("String_Node_Str" + UUID.randomUUID().toString());
  OLATResource resource=JunitTestHelper.createRandomResource();
  String areaName=UUID.randomUUID().toString();
  BGArea area1=areaManager.createAndPersistBGAreaIfNotExists("String_Node_Str" + areaName,"String_Node_Str" + areaName,resource);
  BGArea area2=areaManager.createAndPersistBGAreaIfNotExists("String_Node_Str" + areaName,"String_Node_Str" + areaName,resource);
  BusinessGroup group1=businessGroupService.createBusinessGroup(null,"String_Node_Str","String_Node_Str",0,-1,false,false,resource);
  BusinessGroup group2=businessGroupService.createBusinessGroup(null,"String_Node_Str","String_Node_Str",0,-1,false,false,resource);
  BusinessGroup group3=businessGroupService.createBusinessGroup(null,"String_Node_Str","String_Node_Str",0,-1,false,false,resource);
  dbInstance.commitAndCloseSession();
  areaManager.addBGToBGArea(group1,area1);
  areaManager.addBGToBGArea(group2,area1);
  areaManager.addBGToBGArea(group2,area2);
  areaManager.addBGToBGArea(group3,area1);
  dbInstance.commitAndCloseSession();
  securityManager.addIdentityToSecurityGroup(id1,group1.getPartipiciantGroup());
  securityManager.addIdentityToSecurityGroup(id2,group2.getPartipiciantGroup());
  securityManager.addIdentityToSecurityGroup(id2,group3.getPartipiciantGroup());
  securityManager.addIdentityToSecurityGroup(id3,group3.getPartipiciantGroup());
  dbInstance.commitAndCloseSession();
  List<BusinessGroup> groupId1=areaManager.findBusinessGroupsOfAreaAttendedBy(id1,null,resource);
  Assert.assertNotNull(groupId1);
  Assert.assertEquals(1,groupId1.size());
  Assert.assertTrue(groupId1.contains(group1));
  List<Long> area2Keys=Collections.singletonList(area2.getKey());
  List<BusinessGroup> groupId1Area2=areaManager.findBusinessGroupsOfAreaAttendedBy(id1,area2Keys,resource);
  Assert.assertNotNull(groupId1Area2);
  Assert.assertEquals(0,groupId1Area2.size());
  List<Long> area1Keys=Collections.singletonList(area1.getKey());
  List<BusinessGroup> groupId2Area1=areaManager.findBusinessGroupsOfAreaAttendedBy(id2,area1Keys,resource);
  Assert.assertNotNull(groupId2Area1);
  Assert.assertEquals(2,groupId2Area1.size());
  Assert.assertTrue(groupId2Area1.contains(group2));
  Assert.assertTrue(groupId2Area1.contains(group3));
}