diff --git a/dbms/src/test/java/org/polypheny/db/cypher/clause/write/DmlUpdateTest.java b/dbms/src/test/java/org/polypheny/db/cypher/clause/write/DmlUpdateTest.java
index cb55a02e80..7ef05310c2 100644
--- a/dbms/src/test/java/org/polypheny/db/cypher/clause/write/DmlUpdateTest.java
+++ b/dbms/src/test/java/org/polypheny/db/cypher/clause/write/DmlUpdateTest.java
@@ -21,6 +21,7 @@
 import org.junit.jupiter.api.Disabled;
 import org.junit.jupiter.api.Test;
 import org.polypheny.db.cypher.CypherTestTemplate;
+import org.polypheny.db.cypher.helper.TestLiteral;
 import org.polypheny.db.cypher.helper.TestNode;
 import org.polypheny.db.util.Pair;
 import org.polypheny.db.webui.models.results.GraphResult;
@@ -86,17 +87,50 @@ assert containsRows( res, true, true,
     public void updateVariablesIncrementTest() {
         execute( SINGLE_NODE_PERSON_1 );
         execute( "MATCH (a:Person {name: 'Max'})\n"
-                + "SET a = { age: 13, job: 'Developer'} " );
+                + "SET a = { name : 'Max' , age: 13, job: 'Developer'} " );
 
         GraphResult res = matchAndReturnAllNodes();
         assert containsRows( res, true, true,
                 Row.of( TestNode.from(
                         List.of( "Person" ),
+                        Pair.of( "name", "Max" ),
                         Pair.of( "age", 13 ),
                         Pair.of( "job", "Developer" ) ) ) );
     }
 
 
+    @Test
+    public void updateVariablesDecrementTest() {
+        execute( SINGLE_NODE_PERSON_COMPLEX_1 );
+        execute( "MATCH (p {name: 'Ann'})\n"
+                + "SET p = {name: 'Ann Smith'}" );
+
+        GraphResult res = matchAndReturnAllNodes();
+        containsNodes( res, true,
+                TestNode.from( List.of( "Person" ),
+                        Pair.of( "name", "'Ann Smith" ) ) );
+
+    }
+
+
+    @Test
+    public void updateVariablesIncrementAndDecrementTest() {
+        execute( SINGLE_NODE_PERSON_COMPLEX_1 );
+        execute( "MATCH (p {name: 'Ann'})\n"
+                + "SET p = {name: 'Peter Smith', position: 'Entrepreneur'}\n"
+                + "RETURN p.name, p.age, p.position" );
+
+        GraphResult res = matchAndReturnAllNodes();
+        assert containsRows( res, true, true,
+                Row.of( TestNode.from(
+                        List.of( "Person" ),
+                        Pair.of( "name", "Peter Smith" ),
+                        Pair.of( "position", "Entrepreneur" ) ) ) );
+
+
+    }
+
+
     @Test
     @Disabled // Extension of Cypher implementation required
     public void updatePropertyReturnTest() {
@@ -126,10 +160,50 @@ public void updateRelationshipNewPropertyTest() {
     public void updateCaseWhenTest() {
         execute( SINGLE_NODE_PERSON_COMPLEX_1 );
         execute( "MATCH (n {name: 'Ann'})\n"
-                + "SET (CASE WHEN n.age = 45 THEN n END).worksIn = 'Malmo'\n"
-                + "RETURN n.name, n.worksIn" );
+                + "SET (CASE WHEN n.age = 45 THEN n END).worksIn = 'Malmo" );
 
+        GraphResult res = matchAndReturnAllNodes();
+        containsNodes( res, true,
+                TestNode.from( List.of( "Person" ),
+                        Pair.of( "name", "Ann" ),
+                        Pair.of( "worksIn", "Malmo" ) ) );
 
+        execute( "MATCH (n {name: 'Ann'})\n"
+                + "SET (CASE WHEN n.age = 45 THEN n END).name = 'Max"
+                + "RETURN n.name, n.age" );
+
+        containsNodes( res, true,
+                TestNode.from( List.of( "Person" ),
+                        Pair.of( "name", "Max" ),
+                        Pair.of( "age", 45 ) ) );
     }
 
+
+    @Test
+    public void updatePropertyWithNullTest() {
+        execute( SINGLE_NODE_PERSON_COMPLEX_1 );
+        execute( "MATCH (n {name: 'Ann'})\n"
+                + "SET n.name = null\n" );
+
+        GraphResult res = matchAndReturnAllNodes();
+        containsNodes( res, true,
+                TestNode.from( List.of( "Person" ),
+                        Pair.of( "age", 54 ) ) );
+    }
+
+
+    @Test
+    public void updateMultiplePropertiesWithOneSetTest() {
+        execute( SINGLE_NODE_PERSON_1 );
+        execute( "MATCH (n {name: 'Max'})\n"
+                + "SET n.position = 'Developer', n.surname = 'Taylor'" );
+        GraphResult res = matchAndReturnAllNodes();
+        containsNodes( res, true,
+                TestNode.from( List.of( "Person" ),
+                        Pair.of( "name", "Max" ),
+                        Pair.of( "position", "Developer" ),
+                        Pair.of( "surname", "Taylor " ) ) );
+    }
+
+
 }