# Copyright (c) 2017 Cisco and/or its affiliates.
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at:
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

*** Settings ***
| Library | resources.libraries.python.NodePath
| Library | resources.libraries.python.Trace
| Resource | resources/libraries/robot/shared/default.robot
| Resource | resources/libraries/robot/nsh_sfc/default.robot
| Resource | resources/libraries/robot/shared/interfaces.robot
| Resource | resources/libraries/robot/ip/ip4.robot
| Force Tags | 3_NODE_SINGLE_LINK_TOPO | VM_ENV | FUNCTEST
| Suite Setup | Run Keywords
| ... | Configure all DUTs before test | AND
| ... | Configure all TGs for traffic script | AND
| ... | Update All Interface Data On All Nodes | ${nodes} | AND
| ... | Setup DUT nodes for 'Classifier' functional testing
| Test Setup | Run Keywords | Save VPP PIDs | AND
| ... | Reset PAPI History On All DUTs | ${nodes} | AND
| ... | Clear Interface Counters on all DUTs | ${nodes}
| Test Teardown | Run Keywords
| ... | Show packet trace on all DUTs | ${nodes} | AND
| ... | Show PAPI History On All DUTs | ${nodes} | AND
| ... | Verify VPP PID in Teardown
| Documentation | *NSH SFC Classifier test cases*
| ...
| ... | Test the SFC Classifier functional. DUT run the VPP with NSH SFC Plugin
| ... | TG send a TCP packet to the DUT, if the packet match the SFC Classifier
| ... | rules, the SFC Classifier will encapsulate this packet to a VxLAN-GPE
| ... | and NSH packet, then the DUT will loopback the packet to the TG.
| ... | The TG will capture this encapsulation packet and check the packet
| ... | field is correct.

*** Test Cases ***
| TC01: NSH SFC Classifier functional test with 72B frame size
| | [Documentation]
| | ... | Make TG send 72 Bytes TCP packet to DUT ingress interface. Make TG\
| | ... | verify SFC Classifier encapsulation functional is correct.
| | ${frame_size}= | Set Variable | ${72}
| | Node "${tg_node}" interface "${tg_to_dut_if1}" send "${frame_size}" Bytes packet to node "${dut_node}" interface "${dut_to_tg_if1}" for "Classifier" test

| TC02: NSH SFC Classifier functional test with 128B frame size
| | [Documentation]
| | ... | Make TG send 128 Bytes TCP packet to DUT ingress interface. Make TG\
| | ... | verify SFC Classifier encapsulation functional is correct.
| | ${frame_size}= | Set Variable | ${128}
| | Node "${tg_node}" interface "${tg_to_dut_if1}" send "${frame_size}" Bytes packet to node "${dut_node}" interface "${dut_to_tg_if1}" for "Classifier" test

| TC03: NSH SFC Classifier functional test with 256B frame size
| | [Documentation]
| | ... | Make TG send 256 Bytes TCP packet to DUT ingress interface. Make TG\
| | ... | verify SFC Classifier encapsulation functional is correct.
| | ${frame_size}= | Set Variable | ${256}
| | Node "${tg_node}" interface "${tg_to_dut_if1}" send "${frame_size}" Bytes packet to node "${dut_node}" interface "${dut_to_tg_if1}" for "Classifier" test

| TC04: NSH SFC Classifier functional test with 512B frame size
| | [Documentation]
| | ... | Make TG send 512 Bytes TCP packet to DUT ingress interface. Make TG\
| | ... | verify SFC Classifier encapsulation functional is correct.
| | ${frame_size}= | Set Variable | ${512}
| | Node "${tg_node}" interface "${tg_to_dut_if1}" send "${frame_size}" Bytes packet to node "${dut_node}" interface "${dut_to_tg_if1}" for "Classifier" test

| TC05: NSH SFC Classifier functional test with 1024B frame size
| | [Documentation]
| | ... | Make TG send 1024 Bytes TCP packet to DUT ingress interface. Make TG\
| | ... | verify SFC Classifier encapsulation functional is correct.
| | ${frame_size}= | Set Variable | ${1024}
| | Node "${tg_node}" interface "${tg_to_dut_if1}" send "${frame_size}" Bytes packet to node "${dut_node}" interface "${dut_to_tg_if1}" for "Classifier" test

| TC06: NSH SFC Classifier functional test with 1280B frame size
| | [Documentation]
| | ... | Make TG send 1280 Bytes TCP packet to DUT ingress interface. Make TG\
| | ... | verify SFC Classifier encapsulation functional is correct.
| | ${frame_size}= | Set Variable | ${1280}
| | Node "${tg_node}" interface "${tg_to_dut_if1}" send "${frame_size}" Bytes packet to node "${dut_node}" interface "${dut_to_tg_if1}" for "Classifier" test

| TC07: NSH SFC Classifier functional test with 1518B frame size
| | [Documentation]
| | ... | Make TG send 1518 Bytes TCP packet to DUT ingress interface. Make TG\
| | ... | verify SFC Classifier encapsulation functional is correct.
| | ${frame_size}= | Set Variable | ${1518}
| | Node "${tg_node}" interface "${tg_to_dut_if1}" send "${frame_size}" Bytes packet to node "${dut_node}" interface "${dut_to_tg_if1}" for "Classifier" test