diff --git a/utils/yangutils/plugin/src/test/resources/default/DefaultCaseInChoiceSubStatement.yang b/utils/yangutils/plugin/src/test/resources/default/DefaultCaseInChoiceSubStatement.yang
new file mode 100644
index 0000000..72b597b
--- /dev/null
+++ b/utils/yangutils/plugin/src/test/resources/default/DefaultCaseInChoiceSubStatement.yang
@@ -0,0 +1,23 @@
+module Test {
+    yang-version 1;
+    namespace http://huawei.com;
+    prefix Ant;
+    container food {
+       choice snack {
+           case sports-arena {
+               leaf pretzel {
+                   type string;
+               }
+               leaf beer {
+                   type string;
+               }
+           }
+           case late-night {
+               leaf chocolate {
+                   type string;
+               }
+           }
+           default "sports-arena";
+       }
+    }
+}
diff --git a/utils/yangutils/plugin/src/test/resources/default/DefaultInvalidValueBinaryInLeaf.yang b/utils/yangutils/plugin/src/test/resources/default/DefaultInvalidValueBinaryInLeaf.yang
new file mode 100644
index 0000000..aab417b
--- /dev/null
+++ b/utils/yangutils/plugin/src/test/resources/default/DefaultInvalidValueBinaryInLeaf.yang
@@ -0,0 +1,12 @@
+module Test {
+    yang-version 1;
+    namespace http://huawei.com;
+    prefix Ant;
+
+    leaf message {
+        type binary {
+            length "8";
+        }
+        default "000";
+    }
+}
diff --git a/utils/yangutils/plugin/src/test/resources/default/DefaultInvalidValueBitsInLeaf.yang b/utils/yangutils/plugin/src/test/resources/default/DefaultInvalidValueBitsInLeaf.yang
new file mode 100644
index 0000000..2e84cf3
--- /dev/null
+++ b/utils/yangutils/plugin/src/test/resources/default/DefaultInvalidValueBitsInLeaf.yang
@@ -0,0 +1,20 @@
+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 Mb-only {
+                 position 2;
+             }
+         }
+         default "xyz";
+     }
+}
diff --git a/utils/yangutils/plugin/src/test/resources/default/DefaultInvalidValueBooleanInLeaf.yang b/utils/yangutils/plugin/src/test/resources/default/DefaultInvalidValueBooleanInLeaf.yang
new file mode 100644
index 0000000..1d98df9
--- /dev/null
+++ b/utils/yangutils/plugin/src/test/resources/default/DefaultInvalidValueBooleanInLeaf.yang
@@ -0,0 +1,10 @@
+module Test {
+    yang-version 1;
+    namespace http://huawei.com;
+    prefix Ant;
+
+    leaf myboolean {
+        type boolean;
+        default "yes";
+    }
+}
diff --git a/utils/yangutils/plugin/src/test/resources/default/DefaultInvalidValueDecimal64InLeaf.yang b/utils/yangutils/plugin/src/test/resources/default/DefaultInvalidValueDecimal64InLeaf.yang
new file mode 100644
index 0000000..305235f
--- /dev/null
+++ b/utils/yangutils/plugin/src/test/resources/default/DefaultInvalidValueDecimal64InLeaf.yang
@@ -0,0 +1,13 @@
+module Test {
+    yang-version 1;
+    namespace http://huawei.com;
+    prefix Ant;
+
+    leaf mydecimal {
+        type decimal64 {
+           fraction-digits 4;
+           range 4..6;
+        } 
+        default "x";
+    }
+}
diff --git a/utils/yangutils/plugin/src/test/resources/default/DefaultInvalidValueEnumerationInLeaf.yang b/utils/yangutils/plugin/src/test/resources/default/DefaultInvalidValueEnumerationInLeaf.yang
new file mode 100644
index 0000000..643dac3
--- /dev/null
+++ b/utils/yangutils/plugin/src/test/resources/default/DefaultInvalidValueEnumerationInLeaf.yang
@@ -0,0 +1,16 @@
+module Test {
+    yang-version 1;
+    namespace http://huawei.com;
+    prefix Ant;
+
+     leaf myenum {
+         type enumeration {
+             enum zero;
+             enum one;
+             enum seven {
+                 value 7;
+             }
+         }
+         default "xyz";
+     }
+}
diff --git a/utils/yangutils/plugin/src/test/resources/default/DefaultInvalidValueInChoiceSubStmt.yang b/utils/yangutils/plugin/src/test/resources/default/DefaultInvalidValueInChoiceSubStmt.yang
new file mode 100644
index 0000000..b9fd60d
--- /dev/null
+++ b/utils/yangutils/plugin/src/test/resources/default/DefaultInvalidValueInChoiceSubStmt.yang
@@ -0,0 +1,23 @@
+module Test {
+    yang-version 1;
+    namespace http://huawei.com;
+    prefix Ant;
+    container food {
+       choice snack {
+           case sports-arena {
+               leaf pretzel {
+                   type string;
+               }
+               leaf beer {
+                   type string;
+               }
+           }
+           case late-night {
+               leaf chocolate {
+                   type string;
+               }
+           }
+           default "hello";
+       }
+    }
+}
diff --git a/utils/yangutils/plugin/src/test/resources/default/DefaultInvalidValueInLeafSubStatement.yang b/utils/yangutils/plugin/src/test/resources/default/DefaultInvalidValueInLeafSubStatement.yang
new file mode 100644
index 0000000..9b20fa2
--- /dev/null
+++ b/utils/yangutils/plugin/src/test/resources/default/DefaultInvalidValueInLeafSubStatement.yang
@@ -0,0 +1,15 @@
+module Test {
+    yang-version 1;
+    namespace http://huawei.com;
+    prefix Ant;
+    leaf invalid-interval {
+        type "uint16";
+        units "seconds";
+        default "x";
+        description "Interval before a route is declared invalid";
+        config true;
+        mandatory true;
+        status current;
+        reference "RFC 6020";
+    }
+}
diff --git a/utils/yangutils/plugin/src/test/resources/default/DefaultInvalidValueInTypeDef.yang b/utils/yangutils/plugin/src/test/resources/default/DefaultInvalidValueInTypeDef.yang
new file mode 100644
index 0000000..35f8554
--- /dev/null
+++ b/utils/yangutils/plugin/src/test/resources/default/DefaultInvalidValueInTypeDef.yang
@@ -0,0 +1,14 @@
+module Test {
+    yang-version 1;
+    namespace http://huawei.com;
+    prefix Ant;
+
+    typedef topInt {
+       type int64;
+       default "x";
+    }
+
+    leaf myValue {
+        type topInt;
+    }
+}
diff --git a/utils/yangutils/plugin/src/test/resources/default/DefaultInvalidValueStringInLeaf.yang b/utils/yangutils/plugin/src/test/resources/default/DefaultInvalidValueStringInLeaf.yang
new file mode 100644
index 0000000..28d3d22
--- /dev/null
+++ b/utils/yangutils/plugin/src/test/resources/default/DefaultInvalidValueStringInLeaf.yang
@@ -0,0 +1,13 @@
+module Test {
+    yang-version 1;
+    namespace http://huawei.com;
+    prefix Ant;
+
+    leaf MyString {
+       type string {
+          length "0..4";
+          pattern "[0-9a-fA-F]*";
+       }
+       default "2bB2bB";
+    }
+}
diff --git a/utils/yangutils/plugin/src/test/resources/default/DefaultInvalidValueUnionInLeaf.yang b/utils/yangutils/plugin/src/test/resources/default/DefaultInvalidValueUnionInLeaf.yang
new file mode 100644
index 0000000..2bbb698
--- /dev/null
+++ b/utils/yangutils/plugin/src/test/resources/default/DefaultInvalidValueUnionInLeaf.yang
@@ -0,0 +1,15 @@
+module Test {
+    yang-version 1;
+    namespace http://huawei.com;
+    prefix Ant;
+
+    leaf message {
+        type union {
+            type int32;
+            type enumeration {
+                enum "unbounded";
+            }
+        }
+        default "xyz";
+    }
+}
diff --git a/utils/yangutils/plugin/src/test/resources/default/DefaultValueBinaryInLeaf.yang b/utils/yangutils/plugin/src/test/resources/default/DefaultValueBinaryInLeaf.yang
new file mode 100644
index 0000000..fa6fb05
--- /dev/null
+++ b/utils/yangutils/plugin/src/test/resources/default/DefaultValueBinaryInLeaf.yang
@@ -0,0 +1,12 @@
+module Test {
+    yang-version 1;
+    namespace http://huawei.com;
+    prefix Ant;
+
+    leaf message {
+        type binary {
+            length "8";
+        }
+        default "10010010";
+    }
+}
diff --git a/utils/yangutils/plugin/src/test/resources/default/DefaultValueBitsInLeaf.yang b/utils/yangutils/plugin/src/test/resources/default/DefaultValueBitsInLeaf.yang
new file mode 100644
index 0000000..574df85
--- /dev/null
+++ b/utils/yangutils/plugin/src/test/resources/default/DefaultValueBitsInLeaf.yang
@@ -0,0 +1,20 @@
+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 Mb-only {
+                 position 2;
+             }
+         }
+         default "auto-sense-speed";
+     }
+}
diff --git a/utils/yangutils/plugin/src/test/resources/default/DefaultValueBooleanInLeaf.yang b/utils/yangutils/plugin/src/test/resources/default/DefaultValueBooleanInLeaf.yang
new file mode 100644
index 0000000..bb126ff
--- /dev/null
+++ b/utils/yangutils/plugin/src/test/resources/default/DefaultValueBooleanInLeaf.yang
@@ -0,0 +1,10 @@
+module Test {
+    yang-version 1;
+    namespace http://huawei.com;
+    prefix Ant;
+
+    leaf myboolean {
+        type boolean;
+        default "true";
+    }
+}
diff --git a/utils/yangutils/plugin/src/test/resources/default/DefaultValueDecimal64InLeaf.yang b/utils/yangutils/plugin/src/test/resources/default/DefaultValueDecimal64InLeaf.yang
new file mode 100644
index 0000000..18e566d
--- /dev/null
+++ b/utils/yangutils/plugin/src/test/resources/default/DefaultValueDecimal64InLeaf.yang
@@ -0,0 +1,13 @@
+module Test {
+    yang-version 1;
+    namespace http://huawei.com;
+    prefix Ant;
+
+    leaf mydecimal {
+        type decimal64 {
+           fraction-digits 4;
+           range 4..6;
+        } 
+        default "5";
+    }
+}
diff --git a/utils/yangutils/plugin/src/test/resources/default/DefaultValueDerivedInTypedef.yang b/utils/yangutils/plugin/src/test/resources/default/DefaultValueDerivedInTypedef.yang
new file mode 100644
index 0000000..b787b18
--- /dev/null
+++ b/utils/yangutils/plugin/src/test/resources/default/DefaultValueDerivedInTypedef.yang
@@ -0,0 +1,14 @@
+module Test {
+    yang-version 1;
+    namespace http://huawei.com;
+    prefix Ant;
+
+    typedef topInt {
+       type int64;
+       default "10";
+    }
+
+    leaf myValue {
+        type topInt;
+    }
+}
diff --git a/utils/yangutils/plugin/src/test/resources/default/DefaultValueEmptyInLeaf.yang b/utils/yangutils/plugin/src/test/resources/default/DefaultValueEmptyInLeaf.yang
new file mode 100644
index 0000000..8c8bbea
--- /dev/null
+++ b/utils/yangutils/plugin/src/test/resources/default/DefaultValueEmptyInLeaf.yang
@@ -0,0 +1,10 @@
+module Test {
+    yang-version 1;
+    namespace http://huawei.com;
+    prefix Ant;
+
+    leaf enable-qos {
+        type empty;
+        default "something";
+    }
+}
diff --git a/utils/yangutils/plugin/src/test/resources/default/DefaultValueEnumerationInLeaf.yang b/utils/yangutils/plugin/src/test/resources/default/DefaultValueEnumerationInLeaf.yang
new file mode 100644
index 0000000..2545976
--- /dev/null
+++ b/utils/yangutils/plugin/src/test/resources/default/DefaultValueEnumerationInLeaf.yang
@@ -0,0 +1,16 @@
+module Test {
+    yang-version 1;
+    namespace http://huawei.com;
+    prefix Ant;
+
+     leaf myenum {
+         type enumeration {
+             enum zero;
+             enum one;
+             enum seven {
+                 value 7;
+             }
+         }
+         default "one";
+     }
+}
diff --git a/utils/yangutils/plugin/src/test/resources/default/DefaultValueInLeafSubStatement.yang b/utils/yangutils/plugin/src/test/resources/default/DefaultValueInLeafSubStatement.yang
new file mode 100644
index 0000000..a78131d
--- /dev/null
+++ b/utils/yangutils/plugin/src/test/resources/default/DefaultValueInLeafSubStatement.yang
@@ -0,0 +1,15 @@
+module Test {
+    yang-version 1;
+    namespace http://huawei.com;
+    prefix Ant;
+    leaf invalid-interval {
+        type "uint16";
+        units "seconds";
+        default "1";
+        description "Interval before a route is declared invalid";
+        config true;
+        mandatory true;
+        status current;
+        reference "RFC 6020";
+    }
+}
diff --git a/utils/yangutils/plugin/src/test/resources/default/DefaultValueInMultiTypeDef.yang b/utils/yangutils/plugin/src/test/resources/default/DefaultValueInMultiTypeDef.yang
new file mode 100644
index 0000000..d25b7c2
--- /dev/null
+++ b/utils/yangutils/plugin/src/test/resources/default/DefaultValueInMultiTypeDef.yang
@@ -0,0 +1,18 @@
+module Test {
+    yang-version 1;
+    namespace http://huawei.com;
+    prefix Ant;
+
+    typedef topInt {
+       type int64;
+       default "10";
+    }
+
+    typedef midInt {
+       type topInt;
+    }
+
+    leaf lowInt {
+        type midInt;
+    }
+}
diff --git a/utils/yangutils/plugin/src/test/resources/default/DefaultValueInTypeDef.yang b/utils/yangutils/plugin/src/test/resources/default/DefaultValueInTypeDef.yang
new file mode 100644
index 0000000..b787b18
--- /dev/null
+++ b/utils/yangutils/plugin/src/test/resources/default/DefaultValueInTypeDef.yang
@@ -0,0 +1,14 @@
+module Test {
+    yang-version 1;
+    namespace http://huawei.com;
+    prefix Ant;
+
+    typedef topInt {
+       type int64;
+       default "10";
+    }
+
+    leaf myValue {
+        type topInt;
+    }
+}
diff --git a/utils/yangutils/plugin/src/test/resources/default/DefaultValueStringInLeaf.yang b/utils/yangutils/plugin/src/test/resources/default/DefaultValueStringInLeaf.yang
new file mode 100644
index 0000000..1bdb1e8
--- /dev/null
+++ b/utils/yangutils/plugin/src/test/resources/default/DefaultValueStringInLeaf.yang
@@ -0,0 +1,13 @@
+module Test {
+    yang-version 1;
+    namespace http://huawei.com;
+    prefix Ant;
+
+    leaf MyString {
+       type string {
+          length "0..4";
+          pattern "[0-9a-fA-F]*";
+       }
+       default "2bB";
+    }
+}
diff --git a/utils/yangutils/plugin/src/test/resources/default/DefaultValueUnionInLeaf.yang b/utils/yangutils/plugin/src/test/resources/default/DefaultValueUnionInLeaf.yang
new file mode 100644
index 0000000..e2b39c9
--- /dev/null
+++ b/utils/yangutils/plugin/src/test/resources/default/DefaultValueUnionInLeaf.yang
@@ -0,0 +1,15 @@
+module Test {
+    yang-version 1;
+    namespace http://huawei.com;
+    prefix Ant;
+
+    leaf message {
+        type union {
+            type int32;
+            type enumeration {
+                enum "unbounded";
+            }
+        }
+        default "unbounded";
+    }
+}