diff --git a/src/test/java/net/kemitix/node/NodeItemTest.java b/src/test/java/net/kemitix/node/NodeItemTest.java
index 1f25426..e9928b6 100644
--- a/src/test/java/net/kemitix/node/NodeItemTest.java
+++ b/src/test/java/net/kemitix/node/NodeItemTest.java
@@ -945,4 +945,24 @@ public class NodeItemTest {
         assertThat(Nodes.unnamedChild(null, root)
                         .isRoot()).isFalse();
     }
+
+    @Test
+    public void parentStream() {
+        //given
+        val root = Nodes.namedRoot("root data", "root");
+        val child1 = Nodes.namedChild("child 1 data", "child 1", root);
+        val child2 = Nodes.namedChild("child 2 data", "child 2", root);
+        val child3 = Nodes.namedChild("child 3 data", "child 3", child2);
+        //when
+        val resultRoot = root.parentStream()
+                             .collect(Collectors.toSet());
+        val resultChild1 = child1.parentStream()
+                                 .collect(Collectors.toSet());
+        val resultChild3 = child3.parentStream()
+                                 .collect(Collectors.toSet());
+        //then
+        assertThat(resultRoot).isEmpty();
+        assertThat(resultChild1).containsExactlyInAnyOrder(root);
+        assertThat(resultChild3).containsExactlyInAnyOrder(child2, root);
+    }
 }