diff --git a/utils/yangutils/src/test/resources/ContainerDuplicateContainer.yang b/utils/yangutils/src/test/resources/ContainerDuplicateContainer.yang
new file mode 100644
index 0000000..4928463
--- /dev/null
+++ b/utils/yangutils/src/test/resources/ContainerDuplicateContainer.yang
@@ -0,0 +1,23 @@
+module Test {
+    yang-version 1;
+    namespace http://huawei.com;
+    prefix Ant;
+    container ospf {
+        container valid {
+            leaf invalid-interval {
+                type "uint16";
+                units "seconds";
+                status current;
+                reference "RFC 6020";
+            }
+        }
+        container valid {
+            leaf invalid-interval {
+                type "uint16";
+                units "seconds";
+                status current;
+                reference "RFC 6020";
+            }
+        }
+    }
+}
diff --git a/utils/yangutils/src/test/resources/ContainerWithDuplicateLeaf.yang b/utils/yangutils/src/test/resources/ContainerWithDuplicateLeaf.yang
new file mode 100644
index 0000000..3adaccd
--- /dev/null
+++ b/utils/yangutils/src/test/resources/ContainerWithDuplicateLeaf.yang
@@ -0,0 +1,34 @@
+module Test {
+    yang-version 1;
+    namespace http://huawei.com;
+    prefix Ant;
+    container valid {
+        leaf invalid-interval {
+            type "uint16";
+            units "seconds";
+            description "Interval before a route is declared invalid";
+            config true;
+            mandatory true;
+            status current;
+            reference "RFC 6020";
+        }
+        leaf valid-interval {
+            type "uint16";
+            units "seconds";
+            description "Interval before a route is declared invalid";
+            config true;
+            mandatory true;
+            status current;
+            reference "RFC 6020";
+        }
+        leaf valid-interval {
+            type "uint16";
+            units "seconds";
+            description "Interval before a route is declared invalid";
+            config true;
+            mandatory true;
+            status current;
+            reference "RFC 6020";
+        }
+    }
+}
diff --git a/utils/yangutils/src/test/resources/DuplicateContainerAndList.yang b/utils/yangutils/src/test/resources/DuplicateContainerAndList.yang
new file mode 100644
index 0000000..74c7721
--- /dev/null
+++ b/utils/yangutils/src/test/resources/DuplicateContainerAndList.yang
@@ -0,0 +1,29 @@
+module Test {
+    yang-version 1;
+    namespace http://huawei.com;
+    prefix Ant;
+    container ospf {
+        container valid {
+            leaf invalid-interval {
+                type "uint16";
+                units "seconds";
+                status current;
+                reference "RFC 6020";
+            }
+        }
+        list valid {
+            key "process-id";
+            container interface {
+                leaf invalid-interval {
+                    type "uint16";
+                    units "seconds";
+                    status current;
+                    reference "RFC 6020";
+                }
+            }
+            leaf process-id {
+                type "string";
+            }
+        }
+    }
+}
diff --git a/utils/yangutils/src/test/resources/ListDuplicateContainer.yang b/utils/yangutils/src/test/resources/ListDuplicateContainer.yang
new file mode 100644
index 0000000..8c152b2
--- /dev/null
+++ b/utils/yangutils/src/test/resources/ListDuplicateContainer.yang
@@ -0,0 +1,27 @@
+module Test {
+    yang-version 1;
+    namespace http://huawei.com;
+    prefix Ant;
+    list ospf {
+        key "process-id";
+        container interface {
+            leaf invalid-interval {
+                type "uint16";
+                units "seconds";
+                status current;
+                reference "RFC 6020";
+            }
+        }
+        leaf process-id {
+            type "string";
+        }
+        container interface {
+            leaf invalid-interval {
+                type "uint16";
+                units "seconds";
+                status current;
+                reference "RFC 6020";
+            }
+        }
+    }
+}
diff --git a/utils/yangutils/src/test/resources/ListWithDuplicateLeaf.yang b/utils/yangutils/src/test/resources/ListWithDuplicateLeaf.yang
new file mode 100644
index 0000000..55a78f6
--- /dev/null
+++ b/utils/yangutils/src/test/resources/ListWithDuplicateLeaf.yang
@@ -0,0 +1,26 @@
+module Test {
+    yang-version 1;
+    namespace http://huawei.com;
+    prefix Ant;
+    list valid {
+        key "invalid-interval";
+        leaf invalid-interval {
+            type "uint16";
+            units "seconds";
+            description "Interval before a route is declared invalid";
+            config true;
+            mandatory true;
+            status current;
+            reference "RFC 6020";
+        }
+        leaf invalid-interval {
+            type "uint16";
+            units "seconds";
+            description "Interval before a route is declared invalid";
+            config true;
+            mandatory true;
+            status current;
+            reference "RFC 6020";
+        }
+    }
+}
diff --git a/utils/yangutils/src/test/resources/ModuleDuplicateContainer.yang b/utils/yangutils/src/test/resources/ModuleDuplicateContainer.yang
new file mode 100644
index 0000000..bc58896
--- /dev/null
+++ b/utils/yangutils/src/test/resources/ModuleDuplicateContainer.yang
@@ -0,0 +1,29 @@
+module Test {
+    yang-version 1;
+    namespace http://huawei.com;
+    prefix Ant;
+    container valid {
+        leaf invalid-interval {
+            type "uint16";
+            units "seconds";
+            status current;
+            reference "RFC 6020";
+        }
+    }
+    container invalid {
+        leaf invalid-interval {
+            type "uint16";
+            units "seconds";
+            status current;
+            reference "RFC 6020";
+        }
+    }
+    container valid {
+        leaf invalid-interval {
+            type "uint16";
+            units "seconds";
+            status current;
+            reference "RFC 6020";
+        }
+    }
+}
diff --git a/utils/yangutils/src/test/resources/ModuleWithDuplicateLeaf.yang b/utils/yangutils/src/test/resources/ModuleWithDuplicateLeaf.yang
new file mode 100644
index 0000000..2c3ecbc
--- /dev/null
+++ b/utils/yangutils/src/test/resources/ModuleWithDuplicateLeaf.yang
@@ -0,0 +1,32 @@
+module Test {
+    yang-version 1;
+    namespace http://huawei.com;
+    prefix Ant;
+    leaf invalid-interval {
+        type "uint16";
+        units "seconds";
+        description "Interval before a route is declared invalid";
+        config true;
+        mandatory true;
+        status current;
+        reference "RFC 6020";
+    }
+    leaf valid-interval {
+        type "uint16";
+        units "seconds";
+        description "Interval before a route is declared invalid";
+        config true;
+        mandatory true;
+        status current;
+        reference "RFC 6020";
+    }
+    leaf invalid-interval {
+        type "uint16";
+        units "seconds";
+        description "Interval before a route is declared invalid";
+        config true;
+        mandatory true;
+        status current;
+        reference "RFC 6020";
+    }
+}