diff --git a/tests/dsp/pdr.cpp b/tests/dsp/pdr.cpp
index 0d19de2..9c48215 100644
--- a/tests/dsp/pdr.cpp
+++ b/tests/dsp/pdr.cpp
@@ -7,6 +7,7 @@
 #include <cstdint>
 #include <cstdlib>
 #include <cstring>
+#include <memory>
 #include <vector>
 
 #include <gtest/gtest.h>
@@ -2589,3 +2590,71 @@
     pldm_pdr_destroy(repo);
 }
 #endif
+
+#ifdef LIBPLDM_API_TESTING
+TEST(EntityAssociationPDR, testDeleteNode)
+{
+    std::unique_ptr<pldm_entity, decltype(&free)> entities(
+        (pldm_entity*)malloc(sizeof(pldm_entity) * 4), &free);
+    ASSERT_NE(entities, nullptr);
+
+    entities.get()[0].entity_type = 1;
+
+    entities.get()[1].entity_type = 2;
+    entities.get()[1].entity_instance_num = 1;
+    entities.get()[1].entity_container_id = 2;
+
+    entities.get()[2].entity_type = 3;
+    entities.get()[2].entity_instance_num = 1;
+    entities.get()[2].entity_container_id = 2;
+
+    entities.get()[3].entity_type = 4;
+    entities.get()[3].entity_instance_num = 1;
+    entities.get()[3].entity_container_id = 2;
+
+    auto tree = pldm_entity_association_tree_init();
+    ASSERT_NE(tree, nullptr);
+
+    auto l1 = pldm_entity_association_tree_add_entity(
+        tree, &entities.get()[0], 0xffff, nullptr,
+        PLDM_ENTITY_ASSOCIAION_LOGICAL, false, true, 0xffff);
+    ASSERT_NE(l1, nullptr);
+
+    auto l2 = pldm_entity_association_tree_add_entity(
+        tree, &entities.get()[1], 0xffff, l1, PLDM_ENTITY_ASSOCIAION_PHYSICAL,
+        false, false, 0xffff);
+    ASSERT_NE(l2, nullptr);
+
+    auto l3 = pldm_entity_association_tree_add_entity(
+        tree, &entities.get()[2], 0xffff, l1, PLDM_ENTITY_ASSOCIAION_PHYSICAL,
+        false, true, 0xffff);
+    ASSERT_NE(l3, nullptr);
+
+    auto l4 = pldm_entity_association_tree_add_entity(
+        tree, &entities.get()[3], 0xffff, l1, PLDM_ENTITY_ASSOCIAION_PHYSICAL,
+        false, true, 0xffff);
+    ASSERT_NE(l4, nullptr);
+
+    EXPECT_EQ(pldm_entity_get_num_children(l1, PLDM_ENTITY_ASSOCIAION_PHYSICAL),
+              3);
+
+    pldm_entity entity{};
+    entity.entity_type = 4;
+    entity.entity_instance_num = 1;
+    entity.entity_container_id = 2;
+
+    pldm_entity_association_tree_delete_node(tree, &entity);
+    EXPECT_EQ(pldm_entity_get_num_children(l1, PLDM_ENTITY_ASSOCIAION_PHYSICAL),
+              2);
+
+    entity.entity_type = 3;
+    entity.entity_instance_num = 1;
+    entity.entity_container_id = 2;
+
+    pldm_entity_association_tree_delete_node(tree, &entity);
+    EXPECT_EQ(pldm_entity_get_num_children(l1, PLDM_ENTITY_ASSOCIAION_PHYSICAL),
+              1);
+
+    pldm_entity_association_tree_destroy(tree);
+}
+#endif