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# OSM test automation project - osm/tests

This repository contains tools and configuration files for testing and automation needs of OSM projet

## Prerequisites

- OSM running
- VIM already registered in OSM
- K8s cluster already registered in OSM (for tests involving a K8s cluster)

## Quickstart (run tests using docker)

### Configure the environment file

```
export OSM_HOSTNAME=<OSM_IP_ADDRESS>
export VIM_TARGET=<VIM_REGISTERED_AT_OSM>
export VIM_MGMT_NET=<NAME_OF_THE_MGMT_NETWORK_IN_THE_VIM>
export K8S_CREDENTIALS= # path to the kubeconfig file of the K8s cluster to be tested
export OS_CLOUD=    # OpenStack Cloud defined in $HOME/.config/openstack/clouds.yaml or in /etc/openstack/clouds.yaml
```

### Create the docker container

```bash
docker build -f docker/Dockerfile -t osmtests .
```

### Run the tests

```bash
docker run --rm=true --name tests -t --env-file envconfig.rc \
           -v ~/.config/openstack/clouds.yaml:/etc/openstack/clouds.yaml \
           -v ~/tests/reports:/robot-systest/reports \
           osmtests \
           -t sol003_01
```

You can use a different robot tag instead of `sol003_01`. The whole list of tags are gathered below in this README.

## How to mount local tests folder for developing purposes

The following line will mount the required files for SOL003_01 testuite and will execute the test `sol003_01`

```bash
docker run --rm=true --name tests -t --env-file envconfig.rc \
           -v ~/.config/openstack/clouds.yaml:/etc/openstack/clouds.yaml \
           -v ~/tests/reports:/robot-systest/reports \
           -v ~/tests/robot-systest/lib/sol003_common_lib.robot:/robot-systest/lib/sol003_common_lib.robot \
           osmtests \
           -t sol003_01
```

Relevant volumes to be mounted are:

- <path_to_reports> [OPTIONAL]: the absolute path to reports location in the host
- <path_to_clouds.yaml> [OPTIONAL]: the absolute path to the clouds.yaml file in the host
- <path_to_sdncs.yaml> [OPTIONAL]: the absolute path to the sdncs.yaml file in the host
- <path_to_kubeconfig> [OPTIONAL]: the kubeconfig file to be used for k8s clusters

Other relevant options to run tests are:

- `--env-file`: It is the environmental file where is described the OSM target and VIM
- `-o <osmclient_version>` [OPTIONAL]: It is used to specify a particular osmclient version. Default: latest
- `-p <package_branch>` [OPTIONAL]: OSM packages repository branch. Default: master
- `-t <testing_tags>` [OPTIONAL]: Robot tests tags. [sanity, regression, particular_test]. Default: sanity


## How to run tests from a host

### Installing

This bash script can be used to setup your environment to execute the tests.

```bash
sudo apt-get update
sudo apt-get install ssh ping yq git
# Python packages used for the tests
python3 -m pip install -r requirements.txt
python3 -m pip install -r requirements-dev.txt
# Download community packages
git clone https://osm.etsi.org/gitlab/vnf-onboarding/osm-packages.git
```

### Configure the environment

Create a file `envfile.rc` copying from `envconfig-local.rc` and set the required variables.

### Running the tests

```bash
source envfile.rc
mkdir reports
robot -d reports -i <testing_tags> testsuite/
```

## How to run tests from an environment identical to OSM CICD

```bash
git clone https://osm.etsi.org/gerrit/osm/devops
git clone https://osm.etsi.org/gerrit/osm/IM
git clone https://osm.etsi.org/gerrit/osm/osmclient
git clone https://osm.etsi.org/gerrit/osm/tests
# run HTTP server to server artifacts
devops/tools/local-build.sh --install-qhttpd
# generate debian packages locally that will be served by the HTTP server
devops/tools/local-build.sh --module IM,osmclient,tests stage-2
# create docker image and store it locally as opensourcemano/tests:devel
devops/tools/local-build.sh --module tests
```

Then, run the tests:

```bash
docker run --rm=true -t osmtests --env-file <env_file> \
       -v <path_to_reports>:/reports osmtests \
       -v <path_to_clouds.yaml>:/robot-systest/clouds.yaml \
       -v <path_to_sdncs.yaml>:/robot-systest/sdncs.yaml \
       -v <path_to_kubeconfig>:/root/.kube/config \
       -o <osmclient_version> \
       -p <package_branch> \
       -t <testing_tags>
```

## Test tags

All tests in the testsuites have tags. Tags allow to run only a set of tests identified by a tag. Several tags can be specified when running robot in the following way:

```bash
robot -i <tag_01> -i <tag_02> testsuite/
```

The following tags exist for each testsuite:

- A tag per testsuite using its mnemonic (e.g. `basic_01`)
- Cluster tag for each of the statistically similar tests:
  - `cluster_main`: `basic_01`, `basic_05`, `basic_08`, `basic_09`, `basic_15`,
    `basic_16`, `basic_17`, `hackfest_basic`, `hackfest_multivdu`,
    `hackfest_cloudinit`, `quotas_01`
  - `cluster_ee_config`: `basic_06`, `basic_07`, `basic_11`, `basic_12`,
    `basic_13`, `basic_14`, `k8s_05`, `k8s_06`
  - `cluster_relations`: `basic_11`, `basic_13`, `basic_14`
  - `cluster_epa`: `epa_01`, `epa_02`, `epa_03`, `epa_04`, `epa_05`
  - `cluster_k8s`: `k8s_01`, `k8s_02`, `k8s_03`, `k8s_04`, `k8s_05`, `k8s06`,
    `k8s_07`, `k8s_08`, `k8s_09`, `k8s_10`, `k8s_11`, `sa_08`
  - `cluster_k8s_charms`: `k8s_05`, `k8s_06`
  - `cluster_sa`: `sa_01`, `sa_02`, `sa_07`
  - `cluster_slices`: `slice_01`, `slice_02`
  - `cluster_heal`: `heal_01`, `heal_02`, `heal_03`, `heal_04`
  - `cluster_sol003`: `sol003_01`
- daily: for all testsuites that will run in the daily job
- regression: for all testsuites that should pass in the current stable branch
- sanity: for all testsuites that should be passed by each commit in the
  stage3 to be successfully verified by Jenkins, currently `basic_07`,
  `basic_11`, `k8s_03`, `k8s_04`, `sa_02`, `hackfest_basic`, `hackfest_cloudinit`

In addition, the tag "cleanup" exists in those tests that perform
any deletion. In that way, it can be invoked to retry the deletion if
the tests were forcefully stopped.

- For helping in the migration tests and other scenarios in which you don't want
to destroy the deployments immediately, the following tags are used:
  - `prepare`: for the tests that are used to deploy the network
  services under test
  - `verify`: for the tests that perform the actual testing, or changes for
  additional verifications (e.g. scaling).
  - `cleanup`: already described above.

  So, for instance, you could first deploy a number of network services executing
  the tests with "prepare" tag, migrate to another OSM version, and then
  check the behavior executing with the "verify" tag. Finally, use the "cleanup"
  tag. 

## Post-processing Robot output files

The output files of Robot include tyipically three files:

- `report.html`: overview of the test execution results in HTML format
- `log.html`: details about the executed test cases in HTML format
- `output.xml`: all the test execution results in machine readable XML format

More information about these files [here](https://robotframework.org/robotframework/latest/RobotFrameworkUserGuide.html#output-file).

It is possible to use the tool `rebot`, included as part of the Robot Framework, to post-process the output file `output.xml`.

```bash
# To re-generate log and report from output.xml:
rebot [-d <output_folder>] output.xml

# To re-generate log and report (and optionally new output.xml) to include only certain tags:
rebot [-d <output_folder>] -i <tag1> -i <tag2> ... -i <tagN> [-o <new_output_xml>] output.xml

# To re-generate log and report (and optionally new output.xml) excluding certain tags:
rebot [-d <output_folder>] -e <tag1> -e <tag2> ... -e <tagN> [-o <new_output_xml>] output.xml

# To merge several test executions:
rebot [-d <output_folder>] --merge output1.xml output2.xml ... outputN.xml
```

More information about post-processing Robot output files [here](https://robotframework.org/robotframework/latest/RobotFrameworkUserGuide.html#post-processing-outputs)

## Built With

* [Python](www.python.org/) - The language used
* [Robot Framework](robotframework.org) - The testing framework

## Contributing

Please read [CONTRIBUTING.md](CONTRIBUTING.md) for details on our code of conduct, and the process for submitting pull requests to us.

## Versioning

We use [SemVer](http://semver.org/) for versioning. For the versions available, see the [tags on this repository](https://osm.etsi.org/gitweb/?p=osm/tests.git;a=tags).

## License

This project is licensed under the Apache2 License - see the [LICENSE.md](LICENSE) file for details