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This work is licensed under a Creative Commons Attribution 4.0 International License. +.. http://creativecommons.org/licenses/by/4.0 + + +The different test cases are described in the remaining sections of this document. + +VIM (Virtualized Infrastructure Manager) +---------------------------------------- + +Healthcheck tests +^^^^^^^^^^^^^^^^^ +In 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 instance, allocate floating IP, connect to the VM. +This test replaced the previous Colorado healthcheck test. + +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 exeutes 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 two +Tiers: + + * Smoke Tier - Test Case 'tempest_smoke_serial' + * Components Tier - Test case 'tempest_full_parallel' + +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. + +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. + + +Refstack-client to run Defcore testcases +----------------------------------------- + +Refstack-client `[8]`_ is a command line utility that allows you to +execute Tempest test runs based on configurations you specify. +It is the official tool to run Defcore `[9]`_ testcases, +which focuses on testing interoperability between OpenStack clouds. + +Refstack-client is integrated in Functest, consumed by Dovetail, which +intends to define and provide a set of OPNFV related validation criteria +that will provide input for the evaluation of the use of OPNFV trademarks. +This progress is under the guideline of Compliance Verification Program(CVP). + +Defcore testcases +^^^^^^^^^^^^^^^^^^ + +*Danube Release* + +Set of DefCore tempest test cases not flagged and required. +According to `[10]`_, some tests are still flagged due to outstanding bugs +in the Tempest library, particularly tests that require SSH. Refstack developers +are working on correcting these bugs upstream. Please note that although some tests +are flagged because of bugs, there is still an expectation that the capabilities +covered by the tests are available. It only contains Openstack core compute +(no object storage). The approved guidelines (2016.08) are valid for Kilo, +Liberty, Mitaka and Newton releases of OpenStack. +The list can be generated using the Rest API from RefStack project: +https://refstack.openstack.org/api/v1/guidelines/2016.08/tests?target=compute&type=required&alias=true&flag=false + +Running methods +^^^^^^^^^^^^^^^ + +Two running methods are provided after refstack-client integrated into +Functest, Functest command line and manually, respectively. + +By default, for Defcore test cases run by Functest command line, +are run followed with automatically generated +configuration file, i.e., refstack_tempest.conf. In some circumstances, +the automatic configuration file may not quite satisfied with the SUT, +Functest also inherits the refstack-client command line and provides a way +for users to set its configuration file according to its own SUT manually. + +*command line* + +Inside the Functest container, first to prepare Functest environment: + +:: + + functest env prepare + +then to run default defcore testcases by using refstack-client: + +:: + + functest testcase run refstack_defcore + +In OPNFV Continuous Integration(CI) system, the command line method is used. + +*manually* + +Prepare the tempest configuration file and the testcases want to run with the SUT, +run the testcases with: + +:: + + ./refstack-client test -c <Path of the tempest configuration file to use> -v --test-list <Path or URL of test list> + +using help for more information: + +:: + + ./refstack-client --help + ./refstack-client test --help + +Reference tempest configuration +^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + +*command line method* + +When command line method is used, the default tempest configuration file +is generated by Rally. + +*manually* + +When running manually is used, recommended way to generate tempest configuration +file is: + +:: + + cd /usr/lib/python2.7/site-packages/functest/opnfv_tests/openstack/refstack_client + python tempest_conf.py + +a file called tempest.conf is stored in the current path by default, users can do +some adjustment according to the SUT: + +:: + + vim refstack_tempest.conf + +a reference article can be used `[15]`_. + + +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. When +the config value of snaps.use_keystone is True, Functest must have access +the cloud's private network. +This suite consists in 38 tests (test duration < 10 minutes) + + +SDN Controllers +--------------- + +There are currently 3 available controllers: + + * OpenDaylight (ODL) + * ONOS + * OpenContrail (OCL) + +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. + + +ONOS +^^^^ + +TestON Framework is used to test the ONOS SDN controller functions. +The test cases deal with L2 and L3 functions. +The ONOS test suite can be run on any ONOS compliant scenario. + +The test cases are described as follows: + + * onosfunctest: The main executable file contains the initialization of + the docker environment and functions called by FUNCvirNetNB and + FUNCvirNetNBL3 + + * FUNCvirNetNB + + * Create Network: Post Network data and check it in ONOS + * Update Network: Update the Network and compare it in ONOS + * Delete Network: Delete the Network and check if it's NULL in ONOS or + not + * Create Subnet: Post Subnet data and check it in ONOS + * Update Subnet: Update the Subnet and compare it in ONOS + * Delete Subnet: Delete the Subnet and check if it's NULL in ONOS or not + * Create Port: Post Port data and check it in ONOS + * Update Port: Update the Port and compare it in ONOS + * Delete Port: Delete the Port and check if it's NULL in ONOS or not + + * FUNCvirNetNBL3 + + * Create Router: Post data for create Router and check it in ONOS + * Update Router: Update the Router and compare it in ONOS + * Delete Router: Delete the Router data and check it in ONOS + * Create RouterInterface: Post Router Interface data to an existing Router + and check it in ONOS + * Delete RouterInterface: Delete the RouterInterface and check the Router + * Create FloatingIp: Post data for create FloatingIp and check it in ONOS + * Update FloatingIp: Update the FloatingIp and compare it in ONOS + * Delete FloatingIp: Delete the FloatingIp and check that it is 'NULL' in + ONOS + * Create External Gateway: Post data to create an External Gateway for an + existing Router and check it in ONOS + * Update External Gateway: Update the External Gateway and compare the change + * Delete External Gateway: Delete the External Gateway and check that it is + 'NULL' in ONOS + + +Features +-------- + +Functest has been supporting several feature projects since Brahpamutra: + + ++-----------------+---------+----------+--------+-----------+ +| Test | Brahma | Colorado | Danube | Euphrates | ++=================+=========+==========+========+===========+ +| barometer | | | X | X | ++-----------------+---------+----------+--------+-----------+ +| bgpvpn | | X | X | X | ++-----------------+---------+----------+--------+-----------+ +| copper | | X | | | ++-----------------+---------+----------+--------+-----------+ +| doctor | X | X | X | X | ++-----------------+---------+----------+--------+-----------+ +| domino | | X | X | X | ++-----------------+---------+----------+--------+-----------+ +| fds | | | X | X | ++-----------------+---------+----------+--------+-----------+ +| moon | | X | | X | ++-----------------+---------+----------+--------+-----------+ +| multisite | | X | X | | ++-----------------+---------+----------+--------+-----------+ +| netready | | | X | | ++-----------------+---------+----------+--------+-----------+ +| odl_sfc | | X | X | X | ++-----------------+---------+----------+--------+-----------+ +| opera | | | X | | ++-----------------+---------+----------+--------+-----------+ +| orchestra | | | X | X | ++-----------------+---------+----------+--------+-----------+ +| parser | | | X | | ++-----------------+---------+----------+--------+-----------+ +| promise | X | X | X | X | ++-----------------+---------+----------+--------+-----------+ +| security_scan | | X | 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 + +orchestra_openims +^^^^^^^^^^^^^^^^^ +Orchestra test case deals with the deployment of OpenIMS with OpenBaton +orchestrator. + +orchestra_clearwaterims +^^^^^^^^^^^^^^^^^^^^^^^ +Orchestra test case deals with the deployment of Clearwater vIMS with OpenBaton +orchestrator. + +parser +^^^^^^ + +See parser user guide for details: `[12]`_ + + +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]`_ + +.. _`[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 +.. _`[10]`: https://github.com/openstack/interop/blob/master/2016.08/procedure.rst +.. _`[11]`: http://robotframework.org/ +.. _`[12]`: http://artifacts.opnfv.org/parser/colorado/docs/userguide/index.html +.. _`[13]`: https://wiki.opnfv.org/display/PROJ/SNAPS-OO +.. _`[14]`: https://github.com/oolorg/opnfv-functest-vrouter +.. _`[15]`: https://aptira.com/testing-openstack-tempest-part-1/ |