Expose issues

Author: IoannisPanagiotas

core/src/test/java/org/neo4j/gds/core/huge/NodeFilteredAdjacencyCursorTest.java

@@ -43,6 +43,21 @@ void setup() {
         this.adjacencyCursor = new NodeFilteredAdjacencyCursor(innerCursor, filterIdMap);
     }
 
+    @Test
+    void shouldNotStartWithNegativeValues(){
+        adjacencyCursor.init(0,0);
+        assertThat(adjacencyCursor.peekVLong()).isNotEqualTo(AdjacencyCursor.NOT_FOUND);
+        assertThat(adjacencyCursor.nextVLong()).isNotEqualTo(AdjacencyCursor.NOT_FOUND);
+
+    }
+
+    @Test
+    void nextShouldApplyFiltering(){
+        adjacencyCursor.init(0,0);
+        adjacencyCursor.nextVLong();
+        assertThat(adjacencyCursor.peekVLong()).isEqualTo(2);
+    }
+
     @Test
     void shouldIterateWithFilter() {
         List<Long> actual = new ArrayList<>();