diff --git a/src/test/resources/BitTypeStatement.yang b/src/test/resources/BitTypeStatement.yang
new file mode 100644
index 0000000..9d13495
--- /dev/null
+++ b/src/test/resources/BitTypeStatement.yang
@@ -0,0 +1,12 @@
+module Test {
+    yang-version 1;
+    namespace http://huawei.com;
+    prefix Ant;
+     leaf mybits {
+         type bits {
+             bit disable-nagle;
+             bit auto-sense-speed;
+             bit Ten-Mb-only;
+         }
+    }
+}
diff --git a/src/test/resources/BitWithDuplicateName.yang b/src/test/resources/BitWithDuplicateName.yang
new file mode 100644
index 0000000..ed5cc32
--- /dev/null
+++ b/src/test/resources/BitWithDuplicateName.yang
@@ -0,0 +1,12 @@
+module Test {
+    yang-version 1;
+    namespace http://huawei.com;
+    prefix Ant;
+     leaf mybits {
+         type bits {
+             bit disable-nagle;
+             bit disable-nagle;
+             bit Ten-Mb-only;
+         }
+    }
+}
diff --git a/src/test/resources/EnumWithDuplicateName.yang b/src/test/resources/EnumWithDuplicateName.yang
new file mode 100644
index 0000000..d81558f
--- /dev/null
+++ b/src/test/resources/EnumWithDuplicateName.yang
@@ -0,0 +1,14 @@
+module Test {
+    yang-version 1;
+    namespace http://huawei.com;
+    prefix Ant;
+    leaf speed {
+        type enumeration {
+          enum 10m;
+          enum 100m;
+          enum 10m {
+	     value 11;
+          }
+        }
+    }
+}
diff --git a/src/test/resources/PositionDuplication.yang b/src/test/resources/PositionDuplication.yang
new file mode 100644
index 0000000..81eeb16
--- /dev/null
+++ b/src/test/resources/PositionDuplication.yang
@@ -0,0 +1,18 @@
+module Test {
+    yang-version 1;
+    namespace http://huawei.com;
+    prefix Ant;
+     leaf mybits {
+         type bits {
+             bit disable-nagle {
+                 position 0;
+             }
+             bit auto-sense-speed {
+                 position 1;
+             }
+             bit Ten-Mb-only {
+                 position 1;
+             }
+         }
+    }
+}
diff --git a/src/test/resources/PositionImplicitAndExplicit.yang b/src/test/resources/PositionImplicitAndExplicit.yang
new file mode 100644
index 0000000..5be4cbb
--- /dev/null
+++ b/src/test/resources/PositionImplicitAndExplicit.yang
@@ -0,0 +1,15 @@
+module Test {
+    yang-version 1;
+    namespace http://huawei.com;
+    prefix Ant;
+     leaf mybits {
+         type bits {
+             bit disable-nagle;
+             bit auto-sense-speed {
+                 position 1;
+             }
+             bit Ten-Mb-only;
+             }
+         }
+    }
+}
diff --git a/src/test/resources/PositionImplicitAndExplicitDuplication.yang b/src/test/resources/PositionImplicitAndExplicitDuplication.yang
new file mode 100644
index 0000000..30b81ab
--- /dev/null
+++ b/src/test/resources/PositionImplicitAndExplicitDuplication.yang
@@ -0,0 +1,15 @@
+module Test {
+    yang-version 1;
+    namespace http://huawei.com;
+    prefix Ant;
+     leaf mybits {
+         type bits {
+             bit disable-nagle;
+             bit auto-sense-speed {
+                 position 0;
+             }
+             bit Ten-Mb-only;
+             }
+         }
+    }
+}
diff --git a/src/test/resources/PositionNegativeValue.yang b/src/test/resources/PositionNegativeValue.yang
new file mode 100644
index 0000000..60330e0
--- /dev/null
+++ b/src/test/resources/PositionNegativeValue.yang
@@ -0,0 +1,15 @@
+module Test {
+    yang-version 1;
+    namespace http://huawei.com;
+    prefix Ant;
+     leaf mybits {
+         type bits {
+             bit disable-nagle;
+             bit auto-sense-speed {
+                 position -2;
+             }
+             bit Ten-Mb-only;
+             }
+         }
+    }
+}
diff --git a/src/test/resources/PositionStatement.yang b/src/test/resources/PositionStatement.yang
new file mode 100644
index 0000000..76c204d
--- /dev/null
+++ b/src/test/resources/PositionStatement.yang
@@ -0,0 +1,18 @@
+module Test {
+    yang-version 1;
+    namespace http://huawei.com;
+    prefix Ant;
+     leaf mybits {
+         type bits {
+             bit disable-nagle {
+                 position 0;
+             }
+             bit auto-sense-speed {
+                 position 1;
+             }
+             bit Ten-Mb-only {
+                 position 2;
+             }
+         }
+    }
+}