.. SPDX-License-Identifier: CC-BY-4.0 The different test cases are described in the remaining sections of this document. VIM (Virtualized Infrastructure Manager) ---------------------------------------- Healthcheck tests ^^^^^^^^^^^^^^^^^ Since Danube, healthcheck tests have been refactored and rely on SNAPS, an OPNFV middleware project. SNAPS stands for "SDN/NFV Application development Platform and Stack". SNAPS is an object-oriented OpenStack library packaged with tests that exercise OpenStack. More information on SNAPS can be found in  `[13]`_ Three tests are declared as healthcheck tests and can be used for gating by the installer, they cover functionally the tests previously done by healthcheck test case. The tests are: * *connection_check* * *api_check* * *snaps_health_check* Connection_check consists in 9 test cases (test duration < 5s) checking the connectivity with Glance, Keystone, Neutron, Nova and the external network. Api_check verifies the retrieval of OpenStack clients: Keystone, Glance, Neutron and Nova and may perform some simple queries. When the config value of snaps.use_keystone is True, functest must have access to the cloud's private network. This suite consists in 49 tests (test duration < 2 minutes). Snaps_health_check creates a VM with a single port with an IPv4 address that is assigned by DHCP and then validates the expected IP with the actual. Self-obviously, successful completion of the 'healthcheck' testcase is a necessary pre-requisite for the execution of all other test Tiers. vPing_ssh ^^^^^^^^^ Given the script **ping.sh**:: #!/bin/sh ping -c 1 $1 2>&1 >/dev/null RES=$? if [ "Z$RES" = "Z0" ] ; then echo 'vPing OK' else echo 'vPing KO' fi The goal of this test is to establish an SSH connection using a floating IP on the Public/External network and verify that 2 instances can talk over a Private Tenant network:: vPing_ssh test case +-------------+ +-------------+ | | | | | | Boot VM1 with IP1 | | | +------------------->| | | Tester | | System | | | Boot VM2 | Under | | +------------------->| Test | | | | | | | Create floating IP | | | +------------------->| | | | | | | | Assign floating IP | | | | to VM2 | | | +------------------->| | | | | | | | Establish SSH | | | | connection to VM2 | | | | through floating IP| | | +------------------->| | | | | | | | SCP ping.sh to VM2 | | | +------------------->| | | | | | | | VM2 executes | | | | ping.sh to VM1 | | | +------------------->| | | | | | | | If ping: | | | | exit OK | | | | else (timeout): | | | | exit Failed | | | | | | +-------------+ +-------------+ This test can be considered as an "Hello World" example. It is the first basic use case which **must** work on any deployment. vPing_userdata ^^^^^^^^^^^^^^ This test case is similar to vPing_ssh but without the use of Floating IPs and the Public/External network to transfer the ping script. Instead, it uses Nova metadata service to pass it to the instance at booting time. As vPing_ssh, it checks that 2 instances can talk to each other on a Private Tenant network:: vPing_userdata test case +-------------+ +-------------+ | | | | | | Boot VM1 with IP1 | | | +-------------------->| | | | | | | | Boot VM2 with | | | | ping.sh as userdata | | | | with IP1 as $1. | | | +-------------------->| | | Tester | | System | | | VM2 executes ping.sh| Under | | | (ping IP1) | Test | | +-------------------->| | | | | | | | Monitor nova | | | | console-log VM 2 | | | | If ping: | | | | exit OK | | | | else (timeout) | | | | exit Failed | | | | | | +-------------+ +-------------+ When the second VM boots it will execute the script passed as userdata automatically. The ping will be detected by periodically capturing the output in the console-log of the second VM. Tempest ^^^^^^^ Tempest `[2]`_ is the reference OpenStack Integration test suite. It is a set of integration tests to be run against a live OpenStack cluster. Tempest has suites of tests for: * OpenStack API validation * Scenarios * Other specific tests useful in validating an OpenStack deployment Functest uses Rally `[3]`_ to run the Tempest suite. Rally generates automatically the Tempest configuration file **tempest.conf**. Before running the actual test cases, Functest creates the needed resources (user, tenant) and updates the appropriate parameters into the configuration file. When the Tempest suite is executed, each test duration is measured and the full console output is stored to a *log* file for further analysis. The Tempest testcases are distributed across three Tiers: * Smoke Tier - Test Case 'tempest_smoke_serial' * Components Tier - Test case 'tempest_full_parallel' * Neutron Trunk Port - Test case 'neutron_trunk' * OpenStack interop testcases - Test case 'refstack_defcore' * Testing and verifying RBAC policy enforcement - Test case 'patrole' NOTE: Test case 'tempest_smoke_serial' executes a defined set of tempest smoke tests with a single thread (i.e. serial mode). Test case 'tempest_full_parallel' executes all defined Tempest tests using several concurrent threads (i.e. parallel mode). The number of threads activated corresponds to the number of available logical CPUs. NOTE: The 'neutron_trunk' test set allows to connect a VM to multiple VLAN separated networks using a single NIC. The feature neutron trunk ports have been supported by Apex, Fuel and Compass, so the tempest testcases have been integrated normally. NOTE: Rally is also used to run Openstack Interop testcases `[9]`_, which focus on testing interoperability between OpenStack clouds. NOTE: Patrole is a tempest plugin for testing and verifying RBAC policy enforcement. It runs Tempest-based API tests using specified RBAC roles, thus allowing deployments to verify that only intended roles have access to those APIs. Patrole currently offers testing for the following OpenStack services: Nova, Neutron, Glance, Cinder and Keystone. Currently in functest, only neutron and glance are tested. The goal of the Tempest test suite is to check the basic functionalities of the different OpenStack components on an OPNFV fresh installation, using the corresponding REST API interfaces. Rally bench test suites ^^^^^^^^^^^^^^^^^^^^^^^ Rally `[3]`_ is a benchmarking tool that answers the question: *How does OpenStack work at scale?* The goal of this test suite is to benchmark all the different OpenStack modules and get significant figures that could help to define Telco Cloud KPIs. The OPNFV Rally scenarios are based on the collection of the actual Rally scenarios: * authenticate * cinder * glance * heat * keystone * neutron * nova * quotas A basic SLA (stop test on errors) has been implemented. The Rally testcases are distributed across two Tiers: * Smoke Tier - Test Case 'rally_sanity' * Components Tier - Test case 'rally_full' NOTE: Test case 'rally_sanity' executes a limited number of Rally smoke test cases. Test case 'rally_full' executes the full defined set of Rally tests. snaps_smoke ------------ This test case contains tests that setup and destroy environments with VMs with and without Floating IPs with a newly created user and project. Set the config value snaps.use_floating_ips (True|False) to toggle this functionality. Please note that When the configuration value of snaps.use_keystone is True, Functest must have access the cloud's private network. This suite consists in 120 tests (test duration ~= 50 minutes) SDN Controllers --------------- OpenDaylight ^^^^^^^^^^^^ The OpenDaylight (ODL) test suite consists of a set of basic tests inherited from the ODL project using the Robot `[11]`_ framework. The suite verifies creation and deletion of networks, subnets and ports with OpenDaylight and Neutron. The list of tests can be described as follows: * Basic Restconf test cases * Connect to Restconf URL * Check the HTTP code status * Neutron Reachability test cases * Get the complete list of neutron resources (networks, subnets, ports) * Neutron Network test cases * Check OpenStack networks * Check OpenDaylight networks * Create a new network via OpenStack and check the HTTP status code returned by Neutron * Check that the network has also been successfully created in OpenDaylight * Neutron Subnet test cases * Check OpenStack subnets * Check OpenDaylight subnets * Create a new subnet via OpenStack and check the HTTP status code returned by Neutron * Check that the subnet has also been successfully created in OpenDaylight * Neutron Port test cases * Check OpenStack Neutron for known ports * Check OpenDaylight ports * Create a new port via OpenStack and check the HTTP status code returned by Neutron * Check that the new port has also been successfully created in OpenDaylight * Delete operations * Delete the port previously created via OpenStack * Check that the port has been also successfully deleted in OpenDaylight * Delete previously subnet created via OpenStack * Check that the subnet has also been successfully deleted in OpenDaylight * Delete the network created via OpenStack * Check that the network has also been successfully deleted in OpenDaylight Note: the checks in OpenDaylight are based on the returned HTTP status code returned by OpenDaylight. Features -------- Functest has been supporting several feature projects since Brahmaputra: +-----------------+---------+----------+--------+-----------+-----------+ | Test | Brahma | Colorado | Danube | Euphrates | Fraser | +=================+=========+==========+========+===========+===========+ | barometer | | | X | X | X | +-----------------+---------+----------+--------+-----------+-----------+ | bgpvpn | | X | X | X | X | +-----------------+---------+----------+--------+-----------+-----------+ | copper | | X | | | | +-----------------+---------+----------+--------+-----------+-----------+ | doctor | X | X | X | X | X | +-----------------+---------+----------+--------+-----------+-----------+ | domino | | X | X | X | | +-----------------+---------+----------+--------+-----------+-----------+ | fds | | | X | X | X | +-----------------+---------+----------+--------+-----------+-----------+ | moon | | X | | | | +-----------------+---------+----------+--------+-----------+-----------+ | multisite | | X | X | | | +-----------------+---------+----------+--------+-----------+-----------+ | netready | | | X | | | +-----------------+---------+----------+--------+-----------+-----------+ | odl_sfc | | X | X | X | X | +-----------------+---------+----------+--------+-----------+-----------+ | opera | | | X | | | +-----------------+---------+----------+--------+-----------+-----------+ | orchestra | | | X | X | X | +-----------------+---------+----------+--------+-----------+-----------+ | parser | | | X | X | X | +-----------------+---------+----------+--------+-----------+-----------+ | promise | X | X | X | X | X | +-----------------+---------+----------+--------+-----------+-----------+ | security_scan | | X | X | | | +-----------------+---------+----------+--------+-----------+-----------+ | clover | | | | | X | +-----------------+---------+----------+--------+-----------+-----------+ | stor4nfv | | | | | X | +-----------------+---------+----------+--------+-----------+-----------+ Please refer to the dedicated feature user guides for details. VNF --- cloudify_ims ^^^^^^^^^^^^ The IP Multimedia Subsystem or IP Multimedia Core Network Subsystem (IMS) is an architectural framework for delivering IP multimedia services. vIMS has been integrated in Functest to demonstrate the capability to deploy a relatively complex NFV scenario on the OPNFV platform. The deployment of a complete functional VNF allows the test of most of the essential functions needed for a NFV platform. The goal of this test suite consists of: * deploy a VNF orchestrator (Cloudify) * deploy a Clearwater vIMS (IP Multimedia Subsystem) VNF from this orchestrator based on a TOSCA blueprint defined in `[5]`_ * run suite of signaling tests on top of this VNF The Clearwater architecture is described as follows: .. figure:: ../../../images/clearwater-architecture.png :align: center :alt: vIMS architecture cloudify_ims_perf ^^^^^^^^^^^^^^^^^ This testcase extends the cloudify_ims test case. The first part is similar but the testing part is different. The testing part consists in automating a realistic signaling load on the vIMS using an Ixia loader (proprietary tools) - You need to have access to an Ixia licence server defined in the configuration file and have ixia image locally. This test case is available but not declared in testcases.yaml. The declaration of the testcase is simple, connect to your functest-vnf docker, add the following section in /usr/lib/python2.7/site-packacges/functest/ci/testcases.yaml:: - case_name: cloudify_ims_perf project_name: functest criteria: 80 blocking: false description: >- Stress tests based on Cloudify. Ixia loader images and access to Ixia server license. dependencies: installer: '' scenario: 'os-nosdn-nofeature-ha' run: module: 'functest.opnfv_tests.vnf.ims.cloudify_ims_perf' class: 'CloudifyImsPerf' vyos-vrouter ^^^^^^^^^^^^ This test case deals with the deployment and the test of vyos vrouter with Cloudify orchestrator. The test case can do testing for interchangeability of BGP Protocol using vyos. The Workflow is as follows: * Deploy Deploy VNF Testing topology by Cloudify using blueprint. * Configuration Setting configuration to Target VNF and reference VNF using ssh * Run Execution of test command for test item written YAML format file. Check VNF status and behavior. * Reporting Output of report based on result using JSON format. The vyos-vrouter architecture is described in `[14]`_ juju_epc ^^^^^^^^ Kubernetes (K8s) ---------------- Kubernetes testing relies on sets of tests, which are part of the Kubernetes source tree, such as the Kubernetes End-to-End (e2e) tests `[15]`_. The kubernetes testcases are distributed across various Tiers: * Healthcheck Tier * k8s_smoke Test Case: Creates a Guestbook application that contains redis server, 2 instances of redis slave, frontend application, frontend service and redis master service and redis slave service. Using frontend service, the test will write an entry into the guestbook application which will store the entry into the backend redis database. Application flow MUST work as expected and the data written MUST be available to read. * Smoke Tier * k8s_conformance Test Case: Runs a series of k8s e2e tests expected to pass on any Kubernetes cluster. It is a subset of tests necessary to demonstrate conformance grows with each release. Conformance is thus considered versioned, with backwards compatibility guarantees and are designed to be run with no cloud provider configured. .. _`[2]`: http://docs.openstack.org/developer/tempest/overview.html .. _`[3]`: https://rally.readthedocs.org/en/latest/index.html .. _`[5]`: https://github.com/Orange-OpenSource/opnfv-cloudify-clearwater/blob/master/openstack-blueprint.yaml .. _`[8]`: https://github.com/openstack/refstack-client .. _`[9]`: https://github.com/openstack/defcore .. _`[10]`: https://github.com/openstack/interop/blob/master/2016.08/procedure.rst .. _`[11]`: http://robotframework.org/ .. _`[12]`: http://docs.opnfv.org/en/latest/submodules/functest/docs/testing/user/userguide/index.html .. _`[13]`: https://wiki.opnfv.org/display/PROJ/SNAPS-OO .. _`[14]`: https://github.com/oolorg/opnfv-functest-vrouter .. _`[15]`: https://github.com/kubernetes/community/blob/master/contributors/devel/e2e-tests.md