[sonic-yang-models/yang-models/sonic-acl.yang]: Make type mandatory a… (sonic-net#80)

* [sonic-yang-models/yang-models/sonic-acl.yang]: Make type mandatory and add default value of stage.

Changes:
-- Make type mandatory and add default value of stage.
-- Test case.
-- Support for Verification in data tree.
Signed-off-by: Praveen Chaudhary [email protected]

* [yang_model_tests/yangModelTesting.py]: Adding Description.

Signed-off-by: Praveen Chaudhary [email protected]
RB=
G=lnos-reviewers
R=pchaudhary,pmao,rmolina,samaity,sfardeen,zxu
A=

Author: Praveen Chaudhary

src/sonic-yang-models/tests/yang_model_tests/yangModelTesting.py

@@ -43,6 +43,8 @@ def __init__(self, tests, yangDir, jsonFile):
             'LeafRef': ['Leafref', 'non-existing'],
             'When': ['When condition', 'not satisfied'],
             'Pattern': ['pattern', 'does not satisfy'],
+            'Mandatory': ['required element', 'Missing'],
+            'Verify': ['verified'],
             'None': ['']
         }
 
@@ -118,6 +120,18 @@ def __init__(self, tests, yangDir, jsonFile):
             'LOOPBACK_IPPREFIX_PORT_MUST_CONDITION_FALSE': {
                 'desc': 'Loopback Ip-prefix port-name must condition failure.',
                 'eStr': self.defaultYANGFailure['Must']
+            },
+            'ACL_TABLE_MANDATORY_TYPE': {
+                'desc': 'ACL_TABLE MANDATORY TYPE FIELD.',
+                'eStr': self.defaultYANGFailure['Mandatory'] + ['type'] + ['ACL_TABLE']
+            },
+            'ACL_TABLE_DEFAULT_VALUE_STAGE': {
+                'desc': 'ACL_TABLE DEFAULT VALUE FOR STAGE FIELD.',
+                'eStr': self.defaultYANGFailure['Verify'],
+                'verify': {'xpath': "/sonic-acl:sonic-acl/ACL_TABLE/ACL_TABLE_LIST[ACL_TABLE_NAME='NO-NSW-PACL-V4']/stage",
+                    'key': 'sonic-acl:stage',
+                    'value': 'INGRESS'
+                }
             }
         }
 
@@ -201,12 +215,34 @@ def logStartTest(self, desc):
 
     """
         Load Config Data and return Exception as String
+
+        Parameters:
+            jInput (dict): input config to load.
+            verify (dict): contains xpath, key and value. This is used to verify,
+            that node tree at xpath contains correct key and value.
+            Example:
+            'verify': {'xpath': "/sonic-acl:sonic-acl/ACL_TABLE/ACL_TABLE_LIST\
+                        [ACL_TABLE_NAME='NO-NSW-PACL-V4']/stage",
+                        'key': 'sonic-acl:stage',
+                        'value': 'INGRESS'
+            }
     """
-    def loadConfigData(self, jInput):
+    def loadConfigData(self, jInput, verify=None):
         s = ""
         try:
             node = self.ctx.parse_data_mem(jInput, ly.LYD_JSON, \
             ly.LYD_OPT_CONFIG | ly.LYD_OPT_STRICT)
+            # verify the data tree if asked
+            if verify is not None:
+                xpath = verify['xpath']
+                set = node.find_path(xpath)
+                for dnode in set.data():
+                    if (xpath == dnode.path()):
+                        data = dnode.print_mem(ly.LYD_JSON, ly.LYP_WITHSIBLINGS \
+                            | ly.LYP_FORMAT | ly.LYP_WD_ALL)
+                        data = json.loads(data)
+                        assert (data[verify['key']] == verify['value'])
+                        s = 'verified'
         except Exception as e:
             s = str(e)
             log.debug(s)
@@ -221,7 +257,7 @@ def runExceptionTest(self, test):
             self.logStartTest(desc)
             jInput = self.readJsonInput(test)
             # load the data, expect a exception with must condition failure
-            s = self.loadConfigData(jInput)
+            s = self.loadConfigData(jInput, self.ExceptionTests[test].get('verify'))
             eStr = self.ExceptionTests[test]['eStr']
             log.debug(eStr)
             if (sum(1 for str in eStr if str not in s) == 0):

src/sonic-yang-models/tests/yang_model_tests/yangTest.json

@@ -577,6 +577,30 @@
 		}
 	},
 
+	"ACL_TABLE_MANDATORY_TYPE": {
+		"sonic-acl:sonic-acl": {
+			"sonic-acl:ACL_TABLE": {
+				"ACL_TABLE_LIST": [{
+					"ACL_TABLE_NAME": "NO-NSW-PACL-V4",
+					"policy_desc": "Filter IPv4",
+					"stage": "EGRESS"
+				}]
+			}
+		}
+	},
+
+	"ACL_TABLE_DEFAULT_VALUE_STAGE": {
+		"sonic-acl:sonic-acl": {
+			"sonic-acl:ACL_TABLE": {
+				"ACL_TABLE_LIST": [{
+					"ACL_TABLE_NAME": "NO-NSW-PACL-V4",
+					"policy_desc": "Filter IPv4",
+					"type": "L3"
+				}]
+			}
+		}
+	},
+
 	"ACL_RULE_WRONG_INNER_ETHER_TYPE": {
 		"sonic-acl:sonic-acl": {
 			"sonic-acl:ACL_RULE": {
@@ -1116,7 +1140,8 @@
 					"Ethernet26",
 					"Ethernet27",
 					"Ethernet24"
-				]
+				],
+				"stage": "INGRESS"
 			},
 			"V6-ACL-TBLE": {
 				"type": "L3V6",

src/sonic-yang-models/yang-models/sonic-acl.yang

@@ -256,6 +256,7 @@ module sonic-acl {
 				}
 
 				leaf type {
+					mandatory true;
 					type head:acl_table_type;
 				}
 
@@ -264,6 +265,7 @@ module sonic-acl {
 						enum INGRESS;
 						enum EGRESS;
 					}
+					default INGRESS;
 				}
 
 				leaf-list ports {