Update Honeycomb interface IPv4 test

 - add verification of ipv4 subnet prefix support
 - modify keywords to allow setting ipv4 address with network prefix
 - fix variable definitions to evaluate numbers as ints, not strings
 - add exception to ipv4 netmask/prefix conversion method

Change-Id: I9343ceb35856ddb33674d7067f1def6d40e99acc
Signed-off-by: selias <samelias@cisco.com>

3 files changed, 48 insertions, 15 deletions

diff --git a/resources/libraries/python/IPUtil.py b/resources/libraries/python/IPUtil.py
index 00a7000c65..4b6e2766d8 100644
--- a/resources/libraries/python/IPUtil.py
+++ b/resources/libraries/python/IPUtil.py
@@ -43,19 +43,22 @@ class IPUtil(object):
                 dev=interface, ip=addr, h=node['host']))
 
 
-def convert_ipv4_netmask_prefix(netmask):
+def convert_ipv4_netmask_prefix(network):
     """Convert network mask to equivalent network prefix length or vice versa.
 
     Example: mask 255.255.0.0 -> prefix length 16
-    :param netmask: network mask or network prefix length.
-    :type netmask: str or int
-    :return: network mask or network prefix length.
+    :param network: Network mask or network prefix length.
+    :type network: str or int
+    :return: Network mask or network prefix length.
     :rtype: str or int
     """
     temp_address = "0.0.0.0"
-    net = IPv4Network(u"{0}/{1}".format(temp_address, netmask), False)
+    net = IPv4Network(u"{0}/{1}".format(temp_address, network), False)
 
-    if isinstance(netmask, int):
+    if isinstance(network, int) and (0 < network < 33):
         return net.netmask
-    elif isinstance(netmask, basestring):
+    elif isinstance(network, basestring):
         return net.prefixlen
+    else:
+        raise Exception("Value {0} is not a valid ipv4 netmask or network"
+                        " prefix length".format(network))
diff --git a/resources/libraries/python/honeycomb/HcAPIKwInterfaces.py b/resources/libraries/python/honeycomb/HcAPIKwInterfaces.py
index 8f6819ef5e..b1dd5b5dd1 100644
--- a/resources/libraries/python/honeycomb/HcAPIKwInterfaces.py
+++ b/resources/libraries/python/honeycomb/HcAPIKwInterfaces.py
@@ -331,7 +331,7 @@ class InterfaceKeywords(object):
             node, interface, path, value)
 
     @staticmethod
-    def add_first_ipv4_address(node, interface, ip_addr, netmask):
+    def add_first_ipv4_address(node, interface, ip_addr, network):
         """Add the first IPv4 address.
 
         If there are any other addresses configured, they will be removed.
@@ -339,39 +339,51 @@ class InterfaceKeywords(object):
         :param node: Honeycomb node.
         :param interface: The name of interface.
         :param ip_addr: IPv4 address to be set.
-        :param netmask: Netmask.
+        :param network: Netmask or length of network prefix.
         :type node: dict
         :type interface: str
         :type ip_addr: str
-        :type netmask: str
+        :type network: str or int
         :return: Content of response.
         :rtype: bytearray
         """
 
         path = ("interfaces", ("interface", "name", interface), "ietf-ip:ipv4")
-        address = {"address": [{"ip": ip_addr, "netmask": netmask}, ]}
+        if isinstance(network, basestring):
+            address = {"address": [{"ip": ip_addr, "netmask": network}, ]}
+        elif isinstance(network, int) and (0 < network < 33):
+            address = {"address": [{"ip": ip_addr, "prefix-length": network}, ]}
+        else:
+            raise HoneycombError("Value {0} is not a valid netmask or network "
+                                 "prefix length.".format(network))
         return InterfaceKeywords._set_interface_properties(
             node, interface, path, address)
 
     @staticmethod
-    def add_ipv4_address(node, interface, ip_addr, netmask):
+    def add_ipv4_address(node, interface, ip_addr, network):
         """Add IPv4 address.
 
         :param node: Honeycomb node.
         :param interface: The name of interface.
         :param ip_addr: IPv4 address to be set.
-        :param netmask: Netmask.
+        :param network: Netmask or length of network prefix.
         :type node: dict
         :type interface: str
         :type ip_addr: str
-        :type netmask: str
+        :type network: str or int
         :return: Content of response.
         :rtype: bytearray
         """
 
         path = ("interfaces", ("interface", "name", interface), "ietf-ip:ipv4",
                 "address")
-        address = [{"ip": ip_addr, "prefix-length": netmask}, ]
+        if isinstance(network, basestring):
+            address = {"address": [{"ip": ip_addr, "netmask": network}, ]}
+        elif isinstance(network, int) and (0 < network < 33):
+            address = {"address": [{"ip": ip_addr, "prefix-length": network}, ]}
+        else:
+            raise HoneycombError("Value {0} is not a valid netmask or network "
+                                 "prefix length.".format(network))
         return InterfaceKeywords._set_interface_properties(
             node, interface, path, address)
 
diff --git a/resources/libraries/robot/honeycomb/interfaces.robot b/resources/libraries/robot/honeycomb/interfaces.robot
index d27aff4175..7e2e654bba 100644
--- a/resources/libraries/robot/honeycomb/interfaces.robot
+++ b/resources/libraries/robot/honeycomb/interfaces.robot
@@ -120,6 +120,24 @@
 | | | interfaceAPI.Configure interface ipv4
 | | | ... | ${node} | ${interface} | ${key} | ${settings['${key}']}
 
+| Honeycomb sets interface ipv4 address with prefix
+| | [Documentation] | Uses Honeycomb API to assign an ipv4 address to the\
+| | ... | specified interface. Any existing addresses will be removed.
+| | ...
+| | ... | *Arguments:*
+| | ... | - node - information about a DUT node. Type: dictionary
+| | ... | - interface - name of an interface on the specified node. Type: string
+| | ... | - address - IP address to set. Type: string
+| | ... | - prefix - length of address network prefix. Type: int
+| | ...
+| | ... | *Example:*
+| | ...
+| | ... | \| Honeycomb sets interface ipv4 address with prefix \
+| | ... | \| ${nodes['DUT1']} \| GigabitEthernet0/8/0 \| 192.168.0.2 \| 24 \|
+| | [Arguments] | ${node} | ${interface} | ${address} | ${prefix}
+| | interfaceAPI.Add first ipv4 address
+| | ... | ${node} | ${interface} | ${address} | ${prefix}
+
 | IPv4 config from Honeycomb should be
 | | [Documentation] | Retrieves interface ipv4 configuration through Honeycomb\
 | | ... | and compares with state supplied in argument.