diff --git a/src/main/java/ru/ulstu/deadline/model/Deadline.java b/src/main/java/ru/ulstu/deadline/model/Deadline.java
index 148697c..6c564aa 100644
--- a/src/main/java/ru/ulstu/deadline/model/Deadline.java
+++ b/src/main/java/ru/ulstu/deadline/model/Deadline.java
@@ -65,6 +65,11 @@ public class Deadline extends BaseEntity {
             return false;
         }
         Deadline deadline = (Deadline) o;
+        if (getId() == null && deadline.getId() == null &&
+                description == null && deadline.description == null &&
+                date == null && deadline.date == null) {
+            return true;
+        }
         return getId().equals(deadline.getId()) &&
                 description.equals(deadline.description) &&
                 date.equals(deadline.date);
diff --git a/src/test/java/ru/ulstu/conference/service/ConferenceServiceTest.java b/src/test/java/ru/ulstu/conference/service/ConferenceServiceTest.java
index af583f9..25c6d1b 100644
--- a/src/test/java/ru/ulstu/conference/service/ConferenceServiceTest.java
+++ b/src/test/java/ru/ulstu/conference/service/ConferenceServiceTest.java
@@ -61,6 +61,9 @@ public class ConferenceServiceTest {
     @InjectMocks
     ConferenceService conferenceService;
 
+    private final Integer ID = 1;
+    private final Integer ROMOVE_INDEX = 0;
+
     private List<Conference> conferences;
     private List<Deadline> deadlines;
     private List<Paper> papers;
@@ -171,20 +174,26 @@ public class ConferenceServiceTest {
 
     @Test
     public void delete() {
-        when(conferenceRepository.exists(1)).thenReturn(true);
-        assertTrue(conferenceService.delete(1));
+        when(conferenceRepository.exists(ID)).thenReturn(true);
+        when(conferenceRepository.findOne(ID)).thenReturn(conferenceWithId);
+        assertTrue(conferenceService.delete(ID));
     }
 
     @Test
     public void addDeadline() {
-        ConferenceDto newConferenceDto = conferenceService.addDeadline(conferenceDto);
-        assertEquals(conferenceDto, newConferenceDto);
+        ConferenceDto newConferenceDto = new ConferenceDto();
+        newConferenceDto.getDeadlines().add(new Deadline());
+        conferenceDto.getDeadlines().clear();
+        assertEquals(newConferenceDto.getDeadlines(), conferenceService.addDeadline(conferenceDto).getDeadlines());
     }
 
     @Test
     public void removeDeadline() throws IOException {
-        ConferenceDto newConferenceDto = conferenceService.removeDeadline(conferenceDto, 0);
-        assertEquals(conferenceDto, newConferenceDto);
+        ConferenceDto newConferenceDto = new ConferenceDto();
+        newConferenceDto.getRemovedDeadlineIds().add(ID);
+        ConferenceDto result = conferenceService.removeDeadline(conferenceDto, ROMOVE_INDEX);
+        assertEquals(newConferenceDto.getDeadlines(), result.getDeadlines());
+        assertEquals(newConferenceDto.getRemovedDeadlineIds(), result.getRemovedDeadlineIds());
     }
 
     @Test
@@ -196,7 +205,7 @@ public class ConferenceServiceTest {
 
     @Test
     public void removePaper() throws IOException {
-        ConferenceDto newConferenceDto = conferenceService.removePaper(conferenceDto, 0);
+        ConferenceDto newConferenceDto = conferenceService.removePaper(conferenceDto, ROMOVE_INDEX);
         assertEquals(conferenceDto, newConferenceDto);
     }
 
@@ -234,7 +243,7 @@ public class ConferenceServiceTest {
 
     @Test
     public void ping() throws IOException {
-        when(conferenceRepository.findOne(1)).thenReturn(conferenceWithId);
+        when(conferenceRepository.findOne(ID)).thenReturn(conferenceWithId);
         when(conferenceRepository.updatePingConference(1)).thenReturn(1);
         assertEquals(1, conferenceService.ping(conferenceDto));
     }