diff --git a/lib/ansible/modules/network/fortios/fortios_system_pppoe_interface.py b/lib/ansible/modules/network/fortios/fortios_system_pppoe_interface.py
new file mode 100644
index 00000000000..5ffe21eb9ce
--- /dev/null
+++ b/lib/ansible/modules/network/fortios/fortios_system_pppoe_interface.py
@@ -0,0 +1,422 @@
+#!/usr/bin/python
+from __future__ import (absolute_import, division, print_function)
+# Copyright 2019 Fortinet, Inc.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+__metaclass__ = type
+
+ANSIBLE_METADATA = {'status': ['preview'],
+                    'supported_by': 'community',
+                    'metadata_version': '1.1'}
+
+DOCUMENTATION = '''
+---
+module: fortios_system_pppoe_interface
+short_description: Configure the PPPoE interfaces in Fortinet's FortiOS and FortiGate.
+description:
+    - This module is able to configure a FortiGate or FortiOS device by allowing the
+      user to set and modify system feature and pppoe_interface category.
+      Examples include all parameters and values need to be adjusted to datasources before usage.
+      Tested with FOS v6.0.5
+version_added: "2.9"
+author:
+    - Miguel Angel Munoz (@mamunozgonzalez)
+    - Nicolas Thomas (@thomnico)
+notes:
+    - Requires fortiosapi library developed by Fortinet
+    - Run as a local_action in your playbook
+requirements:
+    - fortiosapi>=0.9.8
+options:
+    host:
+        description:
+            - FortiOS or FortiGate IP address.
+        type: str
+        required: false
+    username:
+        description:
+            - FortiOS or FortiGate username.
+        type: str
+        required: false
+    password:
+        description:
+            - FortiOS or FortiGate password.
+        type: str
+        default: ""
+    vdom:
+        description:
+            - Virtual domain, among those defined previously. A vdom is a
+              virtual instance of the FortiGate that can be configured and
+              used as a different unit.
+        type: str
+        default: root
+    https:
+        description:
+            - Indicates if the requests towards FortiGate must use HTTPS protocol.
+        type: bool
+        default: true
+    ssl_verify:
+        description:
+            - Ensures FortiGate certificate must be verified by a proper CA.
+        type: bool
+        default: true
+    state:
+        description:
+            - Indicates whether to create or remove the object.
+        type: str
+        choices:
+            - present
+            - absent
+    system_pppoe_interface:
+        description:
+            - Configure the PPPoE interfaces.
+        default: null
+        type: dict
+        suboptions:
+            ac_name:
+                description:
+                    - PPPoE AC name.
+                type: str
+            auth_type:
+                description:
+                    - PPP authentication type to use.
+                type: str
+                choices:
+                    - auto
+                    - pap
+                    - chap
+                    - mschapv1
+                    - mschapv2
+            device:
+                description:
+                    - Name for the physical interface. Source system.interface.name.
+                type: str
+            dial_on_demand:
+                description:
+                    - Enable/disable dial on demand to dial the PPPoE interface when packets are routed to the PPPoE interface.
+                type: str
+                choices:
+                    - enable
+                    - disable
+            disc_retry_timeout:
+                description:
+                    - PPPoE discovery init timeout value in (0-4294967295 sec).
+                type: int
+            idle_timeout:
+                description:
+                    - PPPoE auto disconnect after idle timeout (0-4294967295 sec).
+                type: int
+            ipunnumbered:
+                description:
+                    - PPPoE unnumbered IP.
+                type: str
+            ipv6:
+                description:
+                    - Enable/disable IPv6 Control Protocol (IPv6CP).
+                type: str
+                choices:
+                    - enable
+                    - disable
+            lcp_echo_interval:
+                description:
+                    - PPPoE LCP echo interval in (0-4294967295 sec, default = 5).
+                type: int
+            lcp_max_echo_fails:
+                description:
+                    - Maximum missed LCP echo messages before disconnect (0-4294967295, default = 3).
+                type: int
+            name:
+                description:
+                    - Name of the PPPoE interface.
+                required: true
+                type: str
+            padt_retry_timeout:
+                description:
+                    - PPPoE terminate timeout value in (0-4294967295 sec).
+                type: int
+            password:
+                description:
+                    - Enter the password.
+                type: str
+            pppoe_unnumbered_negotiate:
+                description:
+                    - Enable/disable PPPoE unnumbered negotiation.
+                type: str
+                choices:
+                    - enable
+                    - disable
+            service_name:
+                description:
+                    - PPPoE service name.
+                type: str
+            username:
+                description:
+                    - User name.
+                type: str
+'''
+
+EXAMPLES = '''
+- hosts: localhost
+  vars:
+   host: "192.168.122.40"
+   username: "admin"
+   password: ""
+   vdom: "root"
+   ssl_verify: "False"
+  tasks:
+  - name: Configure the PPPoE interfaces.
+    fortios_system_pppoe_interface:
+      host:  "{{ host }}"
+      username: "{{ username }}"
+      password: "{{ password }}"
+      vdom:  "{{ vdom }}"
+      https: "False"
+      state: "present"
+      system_pppoe_interface:
+        ac_name: "<your_own_value>"
+        auth_type: "auto"
+        device: "<your_own_value> (source system.interface.name)"
+        dial_on_demand: "enable"
+        disc_retry_timeout: "7"
+        idle_timeout: "8"
+        ipunnumbered: "<your_own_value>"
+        ipv6: "enable"
+        lcp_echo_interval: "11"
+        lcp_max_echo_fails: "12"
+        name: "default_name_13"
+        padt_retry_timeout: "14"
+        password: "<your_own_value>"
+        pppoe_unnumbered_negotiate: "enable"
+        service_name: "<your_own_value>"
+        username: "<your_own_value>"
+'''
+
+RETURN = '''
+build:
+  description: Build number of the fortigate image
+  returned: always
+  type: str
+  sample: '1547'
+http_method:
+  description: Last method used to provision the content into FortiGate
+  returned: always
+  type: str
+  sample: 'PUT'
+http_status:
+  description: Last result given by FortiGate on last operation applied
+  returned: always
+  type: str
+  sample: "200"
+mkey:
+  description: Master key (id) used in the last call to FortiGate
+  returned: success
+  type: str
+  sample: "id"
+name:
+  description: Name of the table used to fulfill the request
+  returned: always
+  type: str
+  sample: "urlfilter"
+path:
+  description: Path of the table used to fulfill the request
+  returned: always
+  type: str
+  sample: "webfilter"
+revision:
+  description: Internal revision number
+  returned: always
+  type: str
+  sample: "17.0.2.10658"
+serial:
+  description: Serial number of the unit
+  returned: always
+  type: str
+  sample: "FGVMEVYYQT3AB5352"
+status:
+  description: Indication of the operation's result
+  returned: always
+  type: str
+  sample: "success"
+vdom:
+  description: Virtual domain used
+  returned: always
+  type: str
+  sample: "root"
+version:
+  description: Version of the FortiGate
+  returned: always
+  type: str
+  sample: "v5.6.3"
+
+'''
+
+from ansible.module_utils.basic import AnsibleModule
+from ansible.module_utils.connection import Connection
+from ansible.module_utils.network.fortios.fortios import FortiOSHandler
+from ansible.module_utils.network.fortimanager.common import FAIL_SOCKET_MSG
+
+
+def login(data, fos):
+    host = data['host']
+    username = data['username']
+    password = data['password']
+    ssl_verify = data['ssl_verify']
+
+    fos.debug('on')
+    if 'https' in data and not data['https']:
+        fos.https('off')
+    else:
+        fos.https('on')
+
+    fos.login(host, username, password, verify=ssl_verify)
+
+
+def filter_system_pppoe_interface_data(json):
+    option_list = ['ac_name', 'auth_type', 'device',
+                   'dial_on_demand', 'disc_retry_timeout', 'idle_timeout',
+                   'ipunnumbered', 'ipv6', 'lcp_echo_interval',
+                   'lcp_max_echo_fails', 'name', 'padt_retry_timeout',
+                   'password', 'pppoe_unnumbered_negotiate', 'service_name',
+                   'username']
+    dictionary = {}
+
+    for attribute in option_list:
+        if attribute in json and json[attribute] is not None:
+            dictionary[attribute] = json[attribute]
+
+    return dictionary
+
+
+def underscore_to_hyphen(data):
+    if isinstance(data, list):
+        for elem in data:
+            elem = underscore_to_hyphen(elem)
+    elif isinstance(data, dict):
+        new_data = {}
+        for k, v in data.items():
+            new_data[k.replace('_', '-')] = underscore_to_hyphen(v)
+        data = new_data
+
+    return data
+
+
+def system_pppoe_interface(data, fos):
+    vdom = data['vdom']
+    state = data['state']
+    system_pppoe_interface_data = data['system_pppoe_interface']
+    filtered_data = underscore_to_hyphen(filter_system_pppoe_interface_data(system_pppoe_interface_data))
+
+    if state == "present":
+        return fos.set('system',
+                       'pppoe-interface',
+                       data=filtered_data,
+                       vdom=vdom)
+
+    elif state == "absent":
+        return fos.delete('system',
+                          'pppoe-interface',
+                          mkey=filtered_data['name'],
+                          vdom=vdom)
+
+
+def is_successful_status(status):
+    return status['status'] == "success" or \
+        status['http_method'] == "DELETE" and status['http_status'] == 404
+
+
+def fortios_system(data, fos):
+
+    if data['system_pppoe_interface']:
+        resp = system_pppoe_interface(data, fos)
+
+    return not is_successful_status(resp), \
+        resp['status'] == "success", \
+        resp
+
+
+def main():
+    fields = {
+        "host": {"required": False, "type": "str"},
+        "username": {"required": False, "type": "str"},
+        "password": {"required": False, "type": "str", "no_log": True},
+        "vdom": {"required": False, "type": "str", "default": "root"},
+        "https": {"required": False, "type": "bool", "default": True},
+        "ssl_verify": {"required": False, "type": "bool", "default": True},
+        "state": {"required": True, "type": "str",
+                  "choices": ["present", "absent"]},
+        "system_pppoe_interface": {
+            "required": False, "type": "dict", "default": None,
+            "options": {
+                "ac_name": {"required": False, "type": "str"},
+                "auth_type": {"required": False, "type": "str",
+                              "choices": ["auto", "pap", "chap",
+                                          "mschapv1", "mschapv2"]},
+                "device": {"required": False, "type": "str"},
+                "dial_on_demand": {"required": False, "type": "str",
+                                   "choices": ["enable", "disable"]},
+                "disc_retry_timeout": {"required": False, "type": "int"},
+                "idle_timeout": {"required": False, "type": "int"},
+                "ipunnumbered": {"required": False, "type": "str"},
+                "ipv6": {"required": False, "type": "str",
+                         "choices": ["enable", "disable"]},
+                "lcp_echo_interval": {"required": False, "type": "int"},
+                "lcp_max_echo_fails": {"required": False, "type": "int"},
+                "name": {"required": True, "type": "str"},
+                "padt_retry_timeout": {"required": False, "type": "int"},
+                "password": {"required": False, "type": "str"},
+                "pppoe_unnumbered_negotiate": {"required": False, "type": "str",
+                                               "choices": ["enable", "disable"]},
+                "service_name": {"required": False, "type": "str"},
+                "username": {"required": False, "type": "str"}
+
+            }
+        }
+    }
+
+    module = AnsibleModule(argument_spec=fields,
+                           supports_check_mode=False)
+
+    legacy_mode = 'host' in module.params and module.params['host'] is not None and \
+                  'username' in module.params and module.params['username'] is not None and \
+                  'password' in module.params and module.params['password'] is not None
+
+    if not legacy_mode:
+        if module._socket_path:
+            connection = Connection(module._socket_path)
+            fos = FortiOSHandler(connection)
+
+            is_error, has_changed, result = fortios_system(module.params, fos)
+        else:
+            module.fail_json(**FAIL_SOCKET_MSG)
+    else:
+        try:
+            from fortiosapi import FortiOSAPI
+        except ImportError:
+            module.fail_json(msg="fortiosapi module is required")
+
+        fos = FortiOSAPI()
+
+        login(module.params, fos)
+        is_error, has_changed, result = fortios_system(module.params, fos)
+        fos.logout()
+
+    if not is_error:
+        module.exit_json(changed=has_changed, meta=result)
+    else:
+        module.fail_json(msg="Error in repo", meta=result)
+
+
+if __name__ == '__main__':
+    main()
diff --git a/test/units/modules/network/fortios/test_fortios_system_pppoe_interface.py b/test/units/modules/network/fortios/test_fortios_system_pppoe_interface.py
new file mode 100644
index 00000000000..47b9acda928
--- /dev/null
+++ b/test/units/modules/network/fortios/test_fortios_system_pppoe_interface.py
@@ -0,0 +1,349 @@
+# Copyright 2019 Fortinet, Inc.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with Ansible.  If not, see <https://www.gnu.org/licenses/>.
+
+# Make coding more python3-ish
+from __future__ import (absolute_import, division, print_function)
+__metaclass__ = type
+
+import os
+import json
+import pytest
+from mock import ANY
+from ansible.module_utils.network.fortios.fortios import FortiOSHandler
+
+try:
+    from ansible.modules.network.fortios import fortios_system_pppoe_interface
+except ImportError:
+    pytest.skip("Could not load required modules for testing", allow_module_level=True)
+
+
+@pytest.fixture(autouse=True)
+def connection_mock(mocker):
+    connection_class_mock = mocker.patch('ansible.modules.network.fortios.fortios_system_pppoe_interface.Connection')
+    return connection_class_mock
+
+
+fos_instance = FortiOSHandler(connection_mock)
+
+
+def test_system_pppoe_interface_creation(mocker):
+    schema_method_mock = mocker.patch('ansible.module_utils.network.fortios.fortios.FortiOSHandler.schema')
+
+    set_method_result = {'status': 'success', 'http_method': 'POST', 'http_status': 200}
+    set_method_mock = mocker.patch('ansible.module_utils.network.fortios.fortios.FortiOSHandler.set', return_value=set_method_result)
+
+    input_data = {
+        'username': 'admin',
+        'state': 'present',
+        'system_pppoe_interface': {
+            'ac_name': 'test_value_3',
+            'auth_type': 'auto',
+            'device': 'test_value_5',
+            'dial_on_demand': 'enable',
+            'disc_retry_timeout': '7',
+            'idle_timeout': '8',
+            'ipunnumbered': 'test_value_9',
+            'ipv6': 'enable',
+            'lcp_echo_interval': '11',
+            'lcp_max_echo_fails': '12',
+            'name': 'default_name_13',
+            'padt_retry_timeout': '14',
+            'password': 'test_value_15',
+            'pppoe_unnumbered_negotiate': 'enable',
+            'service_name': 'test_value_17',
+            'username': 'test_value_18'
+        },
+        'vdom': 'root'}
+
+    is_error, changed, response = fortios_system_pppoe_interface.fortios_system(input_data, fos_instance)
+
+    expected_data = {
+        'ac-name': 'test_value_3',
+        'auth-type': 'auto',
+        'device': 'test_value_5',
+        'dial-on-demand': 'enable',
+        'disc-retry-timeout': '7',
+        'idle-timeout': '8',
+        'ipunnumbered': 'test_value_9',
+        'ipv6': 'enable',
+                'lcp-echo-interval': '11',
+                'lcp-max-echo-fails': '12',
+                'name': 'default_name_13',
+                'padt-retry-timeout': '14',
+                'password': 'test_value_15',
+                'pppoe-unnumbered-negotiate': 'enable',
+                'service-name': 'test_value_17',
+                'username': 'test_value_18'
+    }
+
+    set_method_mock.assert_called_with('system', 'pppoe-interface', data=expected_data, vdom='root')
+    schema_method_mock.assert_not_called()
+    assert not is_error
+    assert changed
+    assert response['status'] == 'success'
+    assert response['http_status'] == 200
+
+
+def test_system_pppoe_interface_creation_fails(mocker):
+    schema_method_mock = mocker.patch('ansible.module_utils.network.fortios.fortios.FortiOSHandler.schema')
+
+    set_method_result = {'status': 'error', 'http_method': 'POST', 'http_status': 500}
+    set_method_mock = mocker.patch('ansible.module_utils.network.fortios.fortios.FortiOSHandler.set', return_value=set_method_result)
+
+    input_data = {
+        'username': 'admin',
+        'state': 'present',
+        'system_pppoe_interface': {
+            'ac_name': 'test_value_3',
+            'auth_type': 'auto',
+            'device': 'test_value_5',
+            'dial_on_demand': 'enable',
+            'disc_retry_timeout': '7',
+            'idle_timeout': '8',
+            'ipunnumbered': 'test_value_9',
+            'ipv6': 'enable',
+            'lcp_echo_interval': '11',
+            'lcp_max_echo_fails': '12',
+            'name': 'default_name_13',
+            'padt_retry_timeout': '14',
+            'password': 'test_value_15',
+            'pppoe_unnumbered_negotiate': 'enable',
+            'service_name': 'test_value_17',
+            'username': 'test_value_18'
+        },
+        'vdom': 'root'}
+
+    is_error, changed, response = fortios_system_pppoe_interface.fortios_system(input_data, fos_instance)
+
+    expected_data = {
+        'ac-name': 'test_value_3',
+        'auth-type': 'auto',
+        'device': 'test_value_5',
+        'dial-on-demand': 'enable',
+        'disc-retry-timeout': '7',
+        'idle-timeout': '8',
+        'ipunnumbered': 'test_value_9',
+        'ipv6': 'enable',
+                'lcp-echo-interval': '11',
+                'lcp-max-echo-fails': '12',
+                'name': 'default_name_13',
+                'padt-retry-timeout': '14',
+                'password': 'test_value_15',
+                'pppoe-unnumbered-negotiate': 'enable',
+                'service-name': 'test_value_17',
+                'username': 'test_value_18'
+    }
+
+    set_method_mock.assert_called_with('system', 'pppoe-interface', data=expected_data, vdom='root')
+    schema_method_mock.assert_not_called()
+    assert is_error
+    assert not changed
+    assert response['status'] == 'error'
+    assert response['http_status'] == 500
+
+
+def test_system_pppoe_interface_removal(mocker):
+    schema_method_mock = mocker.patch('ansible.module_utils.network.fortios.fortios.FortiOSHandler.schema')
+
+    delete_method_result = {'status': 'success', 'http_method': 'POST', 'http_status': 200}
+    delete_method_mock = mocker.patch('ansible.module_utils.network.fortios.fortios.FortiOSHandler.delete', return_value=delete_method_result)
+
+    input_data = {
+        'username': 'admin',
+        'state': 'absent',
+        'system_pppoe_interface': {
+            'ac_name': 'test_value_3',
+            'auth_type': 'auto',
+            'device': 'test_value_5',
+            'dial_on_demand': 'enable',
+            'disc_retry_timeout': '7',
+            'idle_timeout': '8',
+            'ipunnumbered': 'test_value_9',
+            'ipv6': 'enable',
+            'lcp_echo_interval': '11',
+            'lcp_max_echo_fails': '12',
+            'name': 'default_name_13',
+            'padt_retry_timeout': '14',
+            'password': 'test_value_15',
+            'pppoe_unnumbered_negotiate': 'enable',
+            'service_name': 'test_value_17',
+            'username': 'test_value_18'
+        },
+        'vdom': 'root'}
+
+    is_error, changed, response = fortios_system_pppoe_interface.fortios_system(input_data, fos_instance)
+
+    delete_method_mock.assert_called_with('system', 'pppoe-interface', mkey=ANY, vdom='root')
+    schema_method_mock.assert_not_called()
+    assert not is_error
+    assert changed
+    assert response['status'] == 'success'
+    assert response['http_status'] == 200
+
+
+def test_system_pppoe_interface_deletion_fails(mocker):
+    schema_method_mock = mocker.patch('ansible.module_utils.network.fortios.fortios.FortiOSHandler.schema')
+
+    delete_method_result = {'status': 'error', 'http_method': 'POST', 'http_status': 500}
+    delete_method_mock = mocker.patch('ansible.module_utils.network.fortios.fortios.FortiOSHandler.delete', return_value=delete_method_result)
+
+    input_data = {
+        'username': 'admin',
+        'state': 'absent',
+        'system_pppoe_interface': {
+            'ac_name': 'test_value_3',
+            'auth_type': 'auto',
+            'device': 'test_value_5',
+            'dial_on_demand': 'enable',
+            'disc_retry_timeout': '7',
+            'idle_timeout': '8',
+            'ipunnumbered': 'test_value_9',
+            'ipv6': 'enable',
+            'lcp_echo_interval': '11',
+            'lcp_max_echo_fails': '12',
+            'name': 'default_name_13',
+            'padt_retry_timeout': '14',
+            'password': 'test_value_15',
+            'pppoe_unnumbered_negotiate': 'enable',
+            'service_name': 'test_value_17',
+            'username': 'test_value_18'
+        },
+        'vdom': 'root'}
+
+    is_error, changed, response = fortios_system_pppoe_interface.fortios_system(input_data, fos_instance)
+
+    delete_method_mock.assert_called_with('system', 'pppoe-interface', mkey=ANY, vdom='root')
+    schema_method_mock.assert_not_called()
+    assert is_error
+    assert not changed
+    assert response['status'] == 'error'
+    assert response['http_status'] == 500
+
+
+def test_system_pppoe_interface_idempotent(mocker):
+    schema_method_mock = mocker.patch('ansible.module_utils.network.fortios.fortios.FortiOSHandler.schema')
+
+    set_method_result = {'status': 'error', 'http_method': 'DELETE', 'http_status': 404}
+    set_method_mock = mocker.patch('ansible.module_utils.network.fortios.fortios.FortiOSHandler.set', return_value=set_method_result)
+
+    input_data = {
+        'username': 'admin',
+        'state': 'present',
+        'system_pppoe_interface': {
+            'ac_name': 'test_value_3',
+            'auth_type': 'auto',
+            'device': 'test_value_5',
+            'dial_on_demand': 'enable',
+            'disc_retry_timeout': '7',
+            'idle_timeout': '8',
+            'ipunnumbered': 'test_value_9',
+            'ipv6': 'enable',
+            'lcp_echo_interval': '11',
+            'lcp_max_echo_fails': '12',
+            'name': 'default_name_13',
+            'padt_retry_timeout': '14',
+            'password': 'test_value_15',
+            'pppoe_unnumbered_negotiate': 'enable',
+            'service_name': 'test_value_17',
+            'username': 'test_value_18'
+        },
+        'vdom': 'root'}
+
+    is_error, changed, response = fortios_system_pppoe_interface.fortios_system(input_data, fos_instance)
+
+    expected_data = {
+        'ac-name': 'test_value_3',
+        'auth-type': 'auto',
+        'device': 'test_value_5',
+        'dial-on-demand': 'enable',
+        'disc-retry-timeout': '7',
+        'idle-timeout': '8',
+        'ipunnumbered': 'test_value_9',
+        'ipv6': 'enable',
+                'lcp-echo-interval': '11',
+                'lcp-max-echo-fails': '12',
+                'name': 'default_name_13',
+                'padt-retry-timeout': '14',
+                'password': 'test_value_15',
+                'pppoe-unnumbered-negotiate': 'enable',
+                'service-name': 'test_value_17',
+                'username': 'test_value_18'
+    }
+
+    set_method_mock.assert_called_with('system', 'pppoe-interface', data=expected_data, vdom='root')
+    schema_method_mock.assert_not_called()
+    assert not is_error
+    assert not changed
+    assert response['status'] == 'error'
+    assert response['http_status'] == 404
+
+
+def test_system_pppoe_interface_filter_foreign_attributes(mocker):
+    schema_method_mock = mocker.patch('ansible.module_utils.network.fortios.fortios.FortiOSHandler.schema')
+
+    set_method_result = {'status': 'success', 'http_method': 'POST', 'http_status': 200}
+    set_method_mock = mocker.patch('ansible.module_utils.network.fortios.fortios.FortiOSHandler.set', return_value=set_method_result)
+
+    input_data = {
+        'username': 'admin',
+        'state': 'present',
+        'system_pppoe_interface': {
+            'random_attribute_not_valid': 'tag',
+            'ac_name': 'test_value_3',
+            'auth_type': 'auto',
+            'device': 'test_value_5',
+            'dial_on_demand': 'enable',
+            'disc_retry_timeout': '7',
+            'idle_timeout': '8',
+            'ipunnumbered': 'test_value_9',
+            'ipv6': 'enable',
+            'lcp_echo_interval': '11',
+            'lcp_max_echo_fails': '12',
+            'name': 'default_name_13',
+            'padt_retry_timeout': '14',
+            'password': 'test_value_15',
+            'pppoe_unnumbered_negotiate': 'enable',
+            'service_name': 'test_value_17',
+            'username': 'test_value_18'
+        },
+        'vdom': 'root'}
+
+    is_error, changed, response = fortios_system_pppoe_interface.fortios_system(input_data, fos_instance)
+
+    expected_data = {
+        'ac-name': 'test_value_3',
+        'auth-type': 'auto',
+        'device': 'test_value_5',
+        'dial-on-demand': 'enable',
+        'disc-retry-timeout': '7',
+        'idle-timeout': '8',
+        'ipunnumbered': 'test_value_9',
+        'ipv6': 'enable',
+                'lcp-echo-interval': '11',
+                'lcp-max-echo-fails': '12',
+                'name': 'default_name_13',
+                'padt-retry-timeout': '14',
+                'password': 'test_value_15',
+                'pppoe-unnumbered-negotiate': 'enable',
+                'service-name': 'test_value_17',
+                'username': 'test_value_18'
+    }
+
+    set_method_mock.assert_called_with('system', 'pppoe-interface', data=expected_data, vdom='root')
+    schema_method_mock.assert_not_called()
+    assert not is_error
+    assert changed
+    assert response['status'] == 'success'
+    assert response['http_status'] == 200