Merging of broadcast domain and Broadcast domain port (#51978)

* Revert "changes to clusteR"

This reverts commit 33ee1b71e4bc8435fb315762a871f8c4cb6c5f80.

* Add domain ports in to broadcast domain

* ansibot fixes

* Revert "Revert "changes to clusteR""

This reverts commit 2713c75f31.

* Fix author

lib/ansible/modules/storage/netapp/na_ontap_broadcast_domain.py

@@ -1,6 +1,6 @@
 #!/usr/bin/python
 
-# (c) 2018, NetApp, Inc
+# (c) 2018-2019, NetApp, Inc
 # GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
 
 from __future__ import absolute_import, division, print_function
@@ -13,7 +13,7 @@ ANSIBLE_METADATA = {'metadata_version': '1.1',
 
 DOCUMENTATION = '''
 module: na_ontap_broadcast_domain
-short_description: NetApp ONTAP manage broadcast domains..
+short_description: NetApp ONTAP manage broadcast domains.
 extends_documentation_fragment:
     - netapp.na_ontap
 version_added: '2.6'
@@ -26,52 +26,73 @@ options:
     - Whether the specified broadcast domain should exist or not.
     choices: ['present', 'absent']
     default: present
-  broadcast_domain:
+  name:
     description:
-    - Specify the broadcast_domain name
+    - Specify the broadcast domain name.
     required: true
+    aliases:
+    - broadcast_domain
+  from_name:
+    description:
+    - Specify the  broadcast domain name to be split into new broadcast domain.
+    version_added: "2.8"
   mtu:
     description:
-    - Specify the required mtu for the broadcast domain
+    - Specify the required mtu for the broadcast domain.
   ipspace:
     description:
     - Specify the required ipspace for the broadcast domain.
-    - A domain ipspace can not be modified after the domain has been created
+    - A domain ipspace can not be modified after the domain has been created.
   ports:
     description:
-    - Specify the ports associated with this broadcast domain. Should be comma separated
+    - Specify the ports associated with this broadcast domain. Should be comma separated.
-
+    - It represents the expected state of a list of ports at any time.
+    - Add a port if it is specified in expected state but not in current state.
+    - Delete a port if it is specified in current state but not in expected state.
+    - For split action, it represents the ports to be split from current broadcast domain and added to the new broadcast domain.
+    - if all ports are removed or splited from a broadcast domain, the broadcast domain will be deleted automatically.
 '''
 
 EXAMPLES = """
     - name: create broadcast domain
       na_ontap_broadcast_domain:
-        state=present
+        state: present
-        username={{ netapp_username }}
+        username: "{{ netapp_username }}"
-        password={{ netapp_password }}
+        password: "{{ netapp_password }}"
-        hostname={{ netapp_hostname }}
+        hostname: "{{ netapp_hostname }}"
-        broadcast_domain=123kevin
+        name: ansible_domain
-        mtu=1000
+        mtu: 1000
-        ipspace=Default
+        ipspace: Default
-        ports=khutton-vsim1:e0d-12,khutton-vsim1:e0d-13
+        ports: ["khutton-vsim1:e0d-12", "khutton-vsim1:e0d-13"]
-    - name: delete broadcast domain
-      na_ontap_broadcast_domain:
-        state=absent
-        username={{ netapp_username }}
-        password={{ netapp_password }}
-        hostname={{ netapp_hostname }}
-        broadcast_domain=123kevin
-        mtu=1000
-        ipspace=Default
     - name: modify broadcast domain
       na_ontap_broadcast_domain:
-        state=absent
+        state: present
-        username={{ netapp_username }}
+        username: "{{ netapp_username }}"
-        password={{ netapp_password }}
+        password: "{{ netapp_password }}"
-        hostname={{ netapp_hostname }}
+        hostname: "{{ netapp_hostname }}"
-        broadcast_domain=123kevin
+        name: ansible_domain
-        mtu=1100
+        mtu: 1100
-        ipspace=Default
+        ipspace: Default
+        ports: ["khutton-vsim1:e0d-12", "khutton-vsim1:e0d-13"]
+    - name: split broadcast domain
+      na_ontap_broadcast_domain:
+        state: present
+        username: "{{ netapp_username }}"
+        password: "{{ netapp_password }}"
+        hostname: "{{ netapp_hostname }}"
+        from_name: ansible_domain
+        name: new_ansible_domain
+        mtu: 1200
+        ipspace: Default
+        ports: khutton-vsim1:e0d-12
+    - name: delete broadcast domain
+      na_ontap_broadcast_domain:
+        state: absent
+        username: "{{ netapp_username }}"
+        password: "{{ netapp_password }}"
+        hostname: "{{ netapp_hostname }}"
+        name: ansible_domain
+        ipspace: Default
 """
 
 RETURN = """
@@ -83,6 +104,7 @@ import traceback
 from ansible.module_utils.basic import AnsibleModule
 from ansible.module_utils._text import to_native
 import ansible.module_utils.netapp as netapp_utils
+from ansible.module_utils.netapp_module import NetAppModule
 
 HAS_NETAPP_LIB = netapp_utils.has_netapp_lib()
 
@@ -98,10 +120,11 @@ class NetAppOntapBroadcastDomain(object):
         self.argument_spec = netapp_utils.na_ontap_host_argument_spec()
         self.argument_spec.update(dict(
             state=dict(required=False, choices=['present', 'absent'], default='present'),
-            broadcast_domain=dict(required=True, type='str'),
+            name=dict(required=True, type='str', aliases=["broadcast_domain"]),
             ipspace=dict(required=False, type='str'),
             mtu=dict(required=False, type='str'),
             ports=dict(required=False, type='list'),
+            from_name=dict(required=False, type='str'),
         ))
 
         self.module = AnsibleModule(
@@ -109,14 +132,8 @@ class NetAppOntapBroadcastDomain(object):
             supports_check_mode=True
         )
 
-        parameters = self.module.params
+        self.na_helper = NetAppModule()
-
+        self.parameters = self.na_helper.set_parameters(self.module.params)
-        # set up state variables
-        self.state = parameters['state']
-        self.broadcast_domain = parameters['broadcast_domain']
-        self.ipspace = parameters['ipspace']
-        self.mtu = parameters['mtu']
-        self.ports = parameters['ports']
 
         if HAS_NETAPP_LIB is False:
             self.module.fail_json(msg="the python NetApp-Lib module is required")
@@ -124,23 +141,24 @@ class NetAppOntapBroadcastDomain(object):
             self.server = netapp_utils.setup_na_ontap_zapi(module=self.module)
         return
 
-    def get_broadcast_domain(self):
+    def get_broadcast_domain(self, broadcast_domain=None):
         """
         Return details about the broadcast domain
-        :param:
+        :param broadcast_domain: specific broadcast domain to get.
-            name : broadcast domain name
         :return: Details about the broadcas domain. None if not found.
         :rtype: dict
         """
+        if broadcast_domain is None:
+            broadcast_domain = self.parameters['name']
         domain_get_iter = netapp_utils.zapi.NaElement('net-port-broadcast-domain-get-iter')
         broadcast_domain_info = netapp_utils.zapi.NaElement('net-port-broadcast-domain-info')
-        broadcast_domain_info.add_new_child('broadcast-domain', self.broadcast_domain)
+        broadcast_domain_info.add_new_child('broadcast-domain', broadcast_domain)
         query = netapp_utils.zapi.NaElement('query')
         query.add_child_elem(broadcast_domain_info)
         domain_get_iter.add_child_elem(query)
         result = self.server.invoke_successfully(domain_get_iter, True)
         domain_exists = None
-        # check if job exists
+        # check if broadcast_domain exists
         if result.get_child_by_name('num-records') and \
                 int(result.get_child_content('num-records')) == 1:
             domain_info = result.get_child_by_name('attributes-list').\
@@ -148,10 +166,16 @@ class NetAppOntapBroadcastDomain(object):
             domain_name = domain_info.get_child_content('broadcast-domain')
             domain_mtu = domain_info.get_child_content('mtu')
             domain_ipspace = domain_info.get_child_content('ipspace')
+            domain_ports = domain_info.get_child_by_name('ports')
+            if domain_ports is not None:
+                ports = [port.get_child_content('port') for port in domain_ports.get_children()]
+            else:
+                ports = []
             domain_exists = {
                 'domain-name': domain_name,
                 'mtu': domain_mtu,
-                'ipspace': domain_ipspace
+                'ipspace': domain_ipspace,
+                'ports': ports
             }
         return domain_exists
 
@@ -160,35 +184,38 @@ class NetAppOntapBroadcastDomain(object):
         Creates a new broadcast domain
         """
         domain_obj = netapp_utils.zapi.NaElement('net-port-broadcast-domain-create')
-        domain_obj.add_new_child("broadcast-domain", self.broadcast_domain)
+        domain_obj.add_new_child("broadcast-domain", self.parameters['name'])
-        if self.ipspace:
+        if self.parameters.get('ipspace'):
-            domain_obj.add_new_child("ipspace", self.ipspace)
+            domain_obj.add_new_child("ipspace", self.parameters['ipspace'])
-        domain_obj.add_new_child("mtu", self.mtu)
+        if self.parameters.get('mtu'):
-        if self.ports:
+            domain_obj.add_new_child("mtu", self.parameters['mtu'])
+        if self.parameters.get('ports'):
             ports_obj = netapp_utils.zapi.NaElement('ports')
             domain_obj.add_child_elem(ports_obj)
-            for port in self.ports:
+            for port in self.parameters['ports']:
                 ports_obj.add_new_child('net-qualified-port-name', port)
         try:
             self.server.invoke_successfully(domain_obj, True)
         except netapp_utils.zapi.NaApiError as error:
             self.module.fail_json(msg='Error creating broadcast domain %s: %s' %
-                                  (self.broadcast_domain, to_native(error)),
+                                  (self.parameters['name'], to_native(error)),
                                   exception=traceback.format_exc())
 
-    def delete_broadcast_domain(self):
+    def delete_broadcast_domain(self, broadcast_domain=None):
         """
         Deletes a broadcast domain
         """
+        if broadcast_domain is None:
+            broadcast_domain = self.parameters['name']
         domain_obj = netapp_utils.zapi.NaElement('net-port-broadcast-domain-destroy')
-        domain_obj.add_new_child("broadcast-domain", self.broadcast_domain)
+        domain_obj.add_new_child("broadcast-domain", broadcast_domain)
-        if self.ipspace:
+        if self.parameters.get('ipspace'):
-            domain_obj.add_new_child("ipspace", self.ipspace)
+            domain_obj.add_new_child("ipspace", self.parameters['ipspace'])
         try:
             self.server.invoke_successfully(domain_obj, True)
         except netapp_utils.zapi.NaApiError as error:
             self.module.fail_json(msg='Error deleting broadcast domain %s: %s' %
-                                  (self.broadcast_domain, to_native(error)),
+                                  (broadcast_domain, to_native(error)),
                                   exception=traceback.format_exc())
 
     def modify_broadcast_domain(self):
@@ -196,51 +223,205 @@ class NetAppOntapBroadcastDomain(object):
         Modifies ipspace and mtu options of a broadcast domain
         """
         domain_obj = netapp_utils.zapi.NaElement('net-port-broadcast-domain-modify')
-        domain_obj.add_new_child("broadcast-domain", self.broadcast_domain)
+        domain_obj.add_new_child("broadcast-domain", self.parameters['name'])
-        if self.ipspace:
+        if self.parameters.get('mtu'):
-            domain_obj.add_new_child("ipspace", self.ipspace)
+            domain_obj.add_new_child("mtu", self.parameters['mtu'])
-        if self.mtu:
+        if self.parameters.get('ipspace'):
-            domain_obj.add_new_child("mtu", self.mtu)
+            domain_obj.add_new_child("ipspace", self.parameters['ipspace'])
         try:
             self.server.invoke_successfully(domain_obj, True)
         except netapp_utils.zapi.NaApiError as error:
             self.module.fail_json(msg='Error modifying broadcast domain %s: %s' %
-                                  (self.broadcast_domain, to_native(error)),
+                                  (self.parameters['name'], to_native(error)),
+                                  exception=traceback.format_exc())
+
+    def split_broadcast_domain(self):
+        """
+        split broadcast domain
+        """
+        domain_obj = netapp_utils.zapi.NaElement('net-port-broadcast-domain-split')
+        domain_obj.add_new_child("broadcast-domain", self.parameters['from_name'])
+        domain_obj.add_new_child("new-broadcast-domain", self.parameters['name'])
+        if self.parameters.get('ports'):
+            ports_obj = netapp_utils.zapi.NaElement('ports')
+            domain_obj.add_child_elem(ports_obj)
+            for port in self.parameters['ports']:
+                ports_obj.add_new_child('net-qualified-port-name', port)
+        if self.parameters.get('ipspace'):
+            domain_obj.add_new_child("ipspace", self.parameters['ipspace'])
+        try:
+            self.server.invoke_successfully(domain_obj, True)
+        except netapp_utils.zapi.NaApiError as error:
+            self.module.fail_json(msg='Error splitting broadcast domain %s: %s' %
+                                  (self.parameters['name'], to_native(error)),
+                                  exception=traceback.format_exc())
+        if len(self.get_broadcast_domain_ports(self.parameters['from_name'])) == 0:
+            self.delete_broadcast_domain(self.parameters['from_name'])
+
+    def modify_redirect(self, modify):
+        """
+        :param modify: modify attributes.
+        """
+        for attribute in modify.keys():
+            if attribute == 'mtu':
+                self.modify_broadcast_domain()
+            if attribute == 'ports':
+                self.modify_broadcast_domain_ports()
+
+    def get_modify_attributes(self, current, split):
+        """
+        :param current: current state.
+        :param split: True or False of split action.
+        :return: list of modified attributes.
+        """
+        modify = None
+        if self.parameters['state'] == 'present':
+            # split already handled ipspace and ports.
+            if self.parameters.get('from_name'):
+                current = self.get_broadcast_domain(self.parameters['from_name'])
+                if split:
+                    modify = self.na_helper.get_modified_attributes(current, self.parameters)
+                    if modify.get('ipspace'):
+                        del modify['ipspace']
+                    if modify.get('ports'):
+                        del modify['ports']
+        # ipspace can not be modified.
+            else:
+                modify = self.na_helper.get_modified_attributes(current, self.parameters)
+                if modify.get('ipspace'):
+                    self.module.fail_json(msg='A domain ipspace can not be modified after the domain has been created.',
+                                          exception=traceback.format_exc())
+        return modify
+
+    def modify_broadcast_domain_ports(self):
+        """
+        compare current and desire ports. Call add or remove ports methods if needed.
+        :return: None.
+        """
+        current_ports = self.get_broadcast_domain_ports()
+        expect_ports = self.parameters['ports']
+        # if want to remove all ports, simply delete the broadcast domain.
+        if len(expect_ports) == 0:
+            self.delete_broadcast_domain()
+            return
+        ports_to_remove = list(set(current_ports) - set(expect_ports))
+        ports_to_add = list(set(expect_ports) - set(current_ports))
+
+        if len(ports_to_add) > 0:
+            self.add_broadcast_domain_ports(ports_to_add)
+
+        if len(ports_to_remove) > 0:
+            self.delete_broadcast_domain_ports(ports_to_remove)
+
+    def add_broadcast_domain_ports(self, ports):
+        """
+        Creates new broadcast domain ports
+        """
+        domain_obj = netapp_utils.zapi.NaElement('net-port-broadcast-domain-add-ports')
+        domain_obj.add_new_child("broadcast-domain", self.parameters['name'])
+        if self.parameters.get('ipspace'):
+            domain_obj.add_new_child("ipspace", self.parameters['ipspace'])
+        if ports:
+            ports_obj = netapp_utils.zapi.NaElement('ports')
+            domain_obj.add_child_elem(ports_obj)
+            for port in ports:
+                ports_obj.add_new_child('net-qualified-port-name', port)
+        try:
+            self.server.invoke_successfully(domain_obj, True)
+            return True
+        except netapp_utils.zapi.NaApiError as error:
+            self.module.fail_json(msg='Error creating port for broadcast domain %s: %s' %
+                                  (self.parameters['name'], to_native(error)),
+                                  exception=traceback.format_exc())
+
+    def delete_broadcast_domain_ports(self, ports):
+        """
+        Deletes broadcast domain ports
+        :param: ports to be deleted.
+        """
+        domain_obj = netapp_utils.zapi.NaElement('net-port-broadcast-domain-remove-ports')
+        domain_obj.add_new_child("broadcast-domain", self.parameters['name'])
+        if self.parameters.get('ipspace'):
+            domain_obj.add_new_child("ipspace", self.parameters['ipspace'])
+        if ports:
+            ports_obj = netapp_utils.zapi.NaElement('ports')
+            domain_obj.add_child_elem(ports_obj)
+            for port in ports:
+                ports_obj.add_new_child('net-qualified-port-name', port)
+        try:
+            self.server.invoke_successfully(domain_obj, True)
+            return True
+        except netapp_utils.zapi.NaApiError as error:
+            self.module.fail_json(msg='Error deleting port for broadcast domain %s: %s' %
+                                  (self.parameters['name'], to_native(error)),
                                   exception=traceback.format_exc())
 
+    def get_broadcast_domain_ports(self, broadcast_domain=None):
+        """
+        Return details about the broadcast domain ports.
+        :return: Details about the broadcast domain ports. None if not found.
+        :rtype: list
+        """
+        if broadcast_domain is None:
+            broadcast_domain = self.parameters['name']
+        domain_get_iter = netapp_utils.zapi.NaElement('net-port-broadcast-domain-get-iter')
+        broadcast_domain_info = netapp_utils.zapi.NaElement('net-port-broadcast-domain-info')
+        broadcast_domain_info.add_new_child('broadcast-domain', broadcast_domain)
+        query = netapp_utils.zapi.NaElement('query')
+        query.add_child_elem(broadcast_domain_info)
+        domain_get_iter.add_child_elem(query)
+        result = self.server.invoke_successfully(domain_get_iter, True)
+        ports = []
+        if result.get_child_by_name('num-records') and \
+                int(result.get_child_content('num-records')) == 1:
+            domain_info = result.get_child_by_name('attributes-list').get_child_by_name('net-port-broadcast-domain-info')
+            domain_ports = domain_info.get_child_by_name('ports')
+            if domain_ports is not None:
+                ports = [port.get_child_content('port') for port in domain_ports.get_children()]
+        return ports
+
     def apply(self):
         """
         Run Module based on play book
         """
-        changed = False
+        self.asup_log_for_cserver("na_ontap_broadcast_domain")
-        broadcast_domain_details = self.get_broadcast_domain()
+        current = self.get_broadcast_domain()
-        broadcast_domain_exists = False
+        cd_action, split = None, None
-        results = netapp_utils.get_cserver(self.server)
+        cd_action = self.na_helper.get_cd_action(current, self.parameters)
-        cserver = netapp_utils.setup_na_ontap_zapi(module=self.module, vserver=results)
+        if cd_action == 'create':
-        netapp_utils.ems_log_event("na_ontap_broadcast_domain", cserver)
+            # either create new domain or split domain.
-        if broadcast_domain_details:
+            if self.parameters.get('from_name'):
-            broadcast_domain_exists = True
+                split = self.na_helper.is_rename_action(self.get_broadcast_domain(self.parameters['from_name']), current)
-            if self.state == 'absent':  # delete
+                if split is None:
-                changed = True
+                    self.module.fail_json(msg='A domain can not be split if it does not exist.',
-            elif self.state == 'present':  # modify
+                                          exception=traceback.format_exc())
-                if (self.mtu and self.mtu != broadcast_domain_details['mtu']) or \
+                if split:
-                   (self.ipspace and self.ipspace != broadcast_domain_details['ipspace']):
+                    cd_action = None
-                    changed = True
+        modify = self.get_modify_attributes(current, split)
-        else:
+        if self.na_helper.changed:
-            if self.state == 'present':  # create
-                changed = True
-        if changed:
             if self.module.check_mode:
                 pass
             else:
-                if self.state == 'present':  # execute create
+                if split:
-                    if not broadcast_domain_exists:
+                    self.split_broadcast_domain()
-                        self.create_broadcast_domain()
+                if cd_action == 'create':
-                    else:  # execute modify
+                    self.create_broadcast_domain()
-                        self.modify_broadcast_domain()
+                elif cd_action == 'delete':
-                elif self.state == 'absent':  # execute delete
                     self.delete_broadcast_domain()
-        self.module.exit_json(changed=changed)
+                elif modify:
+                    self.modify_redirect(modify)
+        self.module.exit_json(changed=self.na_helper.changed)
+
+    def asup_log_for_cserver(self, event_name):
+        """
+        Fetch admin vserver for the given cluster
+        Create and Autosupport log event with the given module name
+        :param event_name: Name of the event log
+        :return: None
+        """
+        results = netapp_utils.get_cserver(self.server)
+        cserver = netapp_utils.setup_na_ontap_zapi(module=self.module, vserver=results)
+        netapp_utils.ems_log_event(event_name, cserver)
 
 
 def main():

test/units/modules/storage/netapp/test_na_ontap_broadcast_domain.py

@@ -0,0 +1,308 @@
+# (c) 2018, NetApp, Inc
+# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
+
+''' unit test template for ONTAP Ansible module '''
+
+from __future__ import print_function
+import json
+import pytest
+
+from units.compat import unittest
+from units.compat.mock import patch, Mock
+from ansible.module_utils import basic
+from ansible.module_utils._text import to_bytes
+import ansible.module_utils.netapp as netapp_utils
+
+from ansible.modules.storage.netapp.na_ontap_broadcast_domain \
+    import NetAppOntapBroadcastDomain as broadcast_domain_module  # module under test
+
+if not netapp_utils.has_netapp_lib():
+    pytestmark = pytest.mark.skip('skipping as missing required netapp_lib')
+
+
+def set_module_args(args):
+    """prepare arguments so that they will be picked up during module creation"""
+    args = json.dumps({'ANSIBLE_MODULE_ARGS': args})
+    basic._ANSIBLE_ARGS = to_bytes(args)  # pylint: disable=protected-access
+
+
+class AnsibleExitJson(Exception):
+    """Exception class to be raised by module.exit_json and caught by the test case"""
+    pass
+
+
+class AnsibleFailJson(Exception):
+    """Exception class to be raised by module.fail_json and caught by the test case"""
+    pass
+
+
+def exit_json(*args, **kwargs):  # pylint: disable=unused-argument
+    """function to patch over exit_json; package return data into an exception"""
+    if 'changed' not in kwargs:
+        kwargs['changed'] = False
+    raise AnsibleExitJson(kwargs)
+
+
+def fail_json(*args, **kwargs):  # pylint: disable=unused-argument
+    """function to patch over fail_json; package return data into an exception"""
+    kwargs['failed'] = True
+    raise AnsibleFailJson(kwargs)
+
+
+class MockONTAPConnection(object):
+    ''' mock server connection to ONTAP host '''
+
+    def __init__(self, kind=None, data=None):
+        ''' save arguments '''
+        self.type = kind
+        self.params = data
+        self.xml_in = None
+        self.xml_out = None
+
+    def invoke_successfully(self, xml, enable_tunneling):  # pylint: disable=unused-argument
+        ''' mock invoke_successfully returning xml data '''
+        self.xml_in = xml
+        if self.type == 'broadcast_domain':
+            xml = self.build_broadcast_domain_info(self.params)
+        self.xml_out = xml
+        return xml
+
+    @staticmethod
+    def build_broadcast_domain_info(broadcast_domain_details):
+        ''' build xml data for broadcast_domain info '''
+        xml = netapp_utils.zapi.NaElement('xml')
+        attributes = {
+            'num-records': 1,
+            'attributes-list': {
+                'net-port-broadcast-domain-info': {
+                    'broadcast-domain': broadcast_domain_details['name'],
+                    'ipspace': broadcast_domain_details['ipspace'],
+                    'mtu': broadcast_domain_details['mtu'],
+                    'ports': {
+                        'port-info': {
+                            'port': 'test_port_1'
+                        }
+                    }
+                }
+
+            }
+        }
+        xml.translate_struct(attributes)
+        return xml
+
+
+class TestMyModule(unittest.TestCase):
+    ''' a group of related Unit Tests '''
+
+    def setUp(self):
+        self.mock_module_helper = patch.multiple(basic.AnsibleModule,
+                                                 exit_json=exit_json,
+                                                 fail_json=fail_json)
+        self.mock_module_helper.start()
+        self.addCleanup(self.mock_module_helper.stop)
+        self.server = MockONTAPConnection()
+        self.mock_broadcast_domain = {
+            'name': 'test_broadcast_domain',
+            'mtu': '1000',
+            'ipspace': 'Default',
+            'ports': 'test_port_1'
+        }
+
+    def mock_args(self):
+        return {
+            'name': self.mock_broadcast_domain['name'],
+            'ipspace': self.mock_broadcast_domain['ipspace'],
+            'mtu': self.mock_broadcast_domain['mtu'],
+            'ports': self.mock_broadcast_domain['ports'],
+            'hostname': 'test',
+            'username': 'test_user',
+            'password': 'test_pass!'
+        }
+
+    def get_broadcast_domain_mock_object(self, kind=None, data=None):
+        """
+        Helper method to return an na_ontap_volume object
+        :param kind: passes this param to MockONTAPConnection()
+        :param data: passes this param to MockONTAPConnection()
+        :return: na_ontap_volume object
+        """
+        broadcast_domain_obj = broadcast_domain_module()
+        broadcast_domain_obj.asup_log_for_cserver = Mock(return_value=None)
+        broadcast_domain_obj.cluster = Mock()
+        broadcast_domain_obj.cluster.invoke_successfully = Mock()
+        if kind is None:
+            broadcast_domain_obj.server = MockONTAPConnection()
+        else:
+            if data is None:
+                broadcast_domain_obj.server = MockONTAPConnection(kind='broadcast_domain', data=self.mock_broadcast_domain)
+            else:
+                broadcast_domain_obj.server = MockONTAPConnection(kind='broadcast_domain', data=data)
+        return broadcast_domain_obj
+
+    def test_module_fail_when_required_args_missing(self):
+        ''' required arguments are reported as errors '''
+        with pytest.raises(AnsibleFailJson) as exc:
+            set_module_args({})
+            broadcast_domain_module()
+        print('Info: %s' % exc.value.args[0]['msg'])
+
+    def test_get_nonexistent_net_route(self):
+        ''' Test if get_broadcast_domain returns None for non-existent broadcast_domain '''
+        set_module_args(self.mock_args())
+        result = self.get_broadcast_domain_mock_object().get_broadcast_domain()
+        assert result is None
+
+    def test_create_error_missing_broadcast_domain(self):
+        ''' Test if create throws an error if broadcast_domain is not specified'''
+        data = self.mock_args()
+        del data['name']
+        set_module_args(data)
+        with pytest.raises(AnsibleFailJson) as exc:
+            self.get_broadcast_domain_mock_object('broadcast_domain').create_broadcast_domain()
+        msg = 'missing required arguments: name'
+        assert exc.value.args[0]['msg'] == msg
+
+    @patch('ansible.modules.storage.netapp.na_ontap_broadcast_domain.NetAppOntapBroadcastDomain.create_broadcast_domain')
+    def test_successful_create(self, create_broadcast_domain):
+        ''' Test successful create '''
+        data = self.mock_args()
+        set_module_args(data)
+        with pytest.raises(AnsibleExitJson) as exc:
+            self.get_broadcast_domain_mock_object().apply()
+        assert exc.value.args[0]['changed']
+        create_broadcast_domain.assert_called_with()
+
+    def test_create_idempotency(self):
+        ''' Test create idempotency '''
+        set_module_args(self.mock_args())
+        obj = self.get_broadcast_domain_mock_object('broadcast_domain')
+        with pytest.raises(AnsibleExitJson) as exc:
+            obj.apply()
+        assert not exc.value.args[0]['changed']
+
+    def test_modify_mtu(self):
+        ''' Test successful modify mtu '''
+        data = self.mock_args()
+        data['mtu'] = '1200'
+        set_module_args(data)
+        with pytest.raises(AnsibleExitJson) as exc:
+            self.get_broadcast_domain_mock_object('broadcast_domain').apply()
+        assert exc.value.args[0]['changed']
+
+    def test_modify_ipspace_idempotency(self):
+        ''' Test modify ipsapce idempotency'''
+        data = self.mock_args()
+        data['ipspace'] = 'Cluster'
+        set_module_args(data)
+        with pytest.raises(AnsibleFailJson) as exc:
+            self.get_broadcast_domain_mock_object('broadcast_domain').apply()
+        msg = 'A domain ipspace can not be modified after the domain has been created.'
+        assert exc.value.args[0]['msg'] == msg
+
+    @patch('ansible.modules.storage.netapp.na_ontap_broadcast_domain.NetAppOntapBroadcastDomain.add_broadcast_domain_ports')
+    def test_add_ports(self, add_broadcast_domain_ports):
+        ''' Test successful modify ports '''
+        data = self.mock_args()
+        data['ports'] = 'test_port_1,test_port_2'
+        set_module_args(data)
+        with pytest.raises(AnsibleExitJson) as exc:
+            self.get_broadcast_domain_mock_object('broadcast_domain').apply()
+        assert exc.value.args[0]['changed']
+        add_broadcast_domain_ports.assert_called_with(['test_port_2'])
+
+    @patch('ansible.modules.storage.netapp.na_ontap_broadcast_domain.NetAppOntapBroadcastDomain.delete_broadcast_domain_ports')
+    def test_delete_ports(self, delete_broadcast_domain_ports):
+        ''' Test successful modify ports '''
+        data = self.mock_args()
+        data['ports'] = ''
+        set_module_args(data)
+        with pytest.raises(AnsibleExitJson) as exc:
+            self.get_broadcast_domain_mock_object('broadcast_domain').apply()
+        assert exc.value.args[0]['changed']
+        delete_broadcast_domain_ports.assert_called_with(['test_port_1'])
+
+    @patch('ansible.modules.storage.netapp.na_ontap_broadcast_domain.NetAppOntapBroadcastDomain.modify_broadcast_domain')
+    @patch('ansible.modules.storage.netapp.na_ontap_broadcast_domain.NetAppOntapBroadcastDomain.split_broadcast_domain')
+    @patch('ansible.modules.storage.netapp.na_ontap_broadcast_domain.NetAppOntapBroadcastDomain.get_broadcast_domain')
+    def test_split_broadcast_domain(self, get_broadcast_domain, split_broadcast_domain, modify_broadcast_domain):
+        ''' Test successful split broadcast domain '''
+        data = self.mock_args()
+        data['from_name'] = 'test_broadcast_domain'
+        data['name'] = 'test_broadcast_domain_2'
+        data['ports'] = 'test_port_2'
+        set_module_args(data)
+        current = {
+            'name': 'test_broadcast_domain',
+            'mtu': '1000',
+            'ipspace': 'Default',
+            'ports': ['test_port_1,test_port2']
+        }
+        get_broadcast_domain.side_effect = [
+            None,
+            current,
+            current
+        ]
+        with pytest.raises(AnsibleExitJson) as exc:
+            self.get_broadcast_domain_mock_object().apply()
+        assert exc.value.args[0]['changed']
+        modify_broadcast_domain.assert_not_called()
+        split_broadcast_domain.assert_called_with()
+
+    @patch('ansible.modules.storage.netapp.na_ontap_broadcast_domain.NetAppOntapBroadcastDomain.delete_broadcast_domain')
+    @patch('ansible.modules.storage.netapp.na_ontap_broadcast_domain.NetAppOntapBroadcastDomain.modify_broadcast_domain')
+    @patch('ansible.modules.storage.netapp.na_ontap_broadcast_domain.NetAppOntapBroadcastDomain.get_broadcast_domain')
+    def test_split_broadcast_domain_modify_delete(self, get_broadcast_domain, modify_broadcast_domain, delete_broadcast_domain):
+        ''' Test successful split broadcast domain '''
+        data = self.mock_args()
+        data['from_name'] = 'test_broadcast_domain'
+        data['name'] = 'test_broadcast_domain_2'
+        data['ports'] = 'test_port_1,test_port_2'
+        data['mtu'] = '1200'
+        set_module_args(data)
+
+        current = {
+            'name': 'test_broadcast_domain',
+            'mtu': '1000',
+            'ipspace': 'Default',
+            'ports': ['test_port_1,test_port2']
+        }
+        get_broadcast_domain.side_effect = [
+            None,
+            current,
+            current
+        ]
+        with pytest.raises(AnsibleExitJson) as exc:
+            self.get_broadcast_domain_mock_object().apply()
+        assert exc.value.args[0]['changed']
+        delete_broadcast_domain.assert_called_with('test_broadcast_domain')
+        modify_broadcast_domain.assert_called_with()
+
+    @patch('ansible.modules.storage.netapp.na_ontap_broadcast_domain.NetAppOntapBroadcastDomain.get_broadcast_domain')
+    def test_split_broadcast_domain_not_exist(self, get_broadcast_domain):
+        ''' Test successful split broadcast domain '''
+        data = self.mock_args()
+        data['from_name'] = 'test_broadcast_domain'
+        data['name'] = 'test_broadcast_domain_2'
+        data['ports'] = 'test_port_2'
+        set_module_args(data)
+
+        get_broadcast_domain.side_effect = [
+            None,
+            None,
+        ]
+        with pytest.raises(AnsibleFailJson) as exc:
+            self.get_broadcast_domain_mock_object().apply()
+        msg = 'A domain can not be split if it does not exist.'
+        assert exc.value.args[0]['msg'], msg
+
+    @patch('ansible.modules.storage.netapp.na_ontap_broadcast_domain.NetAppOntapBroadcastDomain.split_broadcast_domain')
+    def test_split_broadcast_domain_idempotency(self, split_broadcast_domain):
+        ''' Test successful split broadcast domain '''
+        data = self.mock_args()
+        data['from_name'] = 'test_broadcast_domain'
+        data['ports'] = 'test_port_1'
+        set_module_args(data)
+        with pytest.raises(AnsibleExitJson) as exc:
+            self.get_broadcast_domain_mock_object('broadcast_domain').apply()
+        assert exc.value.args[0]['changed'] is False
+        split_broadcast_domain.assert_not_called()