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# Scenario Test
This page explains how to set up a scenario test environment and run the test.
## Contents
- [Prerequisites](#prerequisites)
- [Check](#check)
- [Set up dependencies](#set-up-dependencies)
- [Install local source code](#install-local-source-code)
- [Run test](#run-test)
- [Clean up](#clean-up)
## Prerequisites
Assume you finished setting up [Golang](https://golang.org/doc/install) and
[Docker](https://docs.docker.com/installation/ubuntulinux/) on Ubuntu 14.04
Server VM.
We recommend allocating memory more than 8GB to the VM.
Because this scenario test runs a lot of test cases concurrently.
## Check
Please check if Golang and Docker is installed correctly and
make sure the $GOPATH is defined.
```shell
$ go version
go version go1.5.1 linux/amd64
$ echo $GOPATH
/home/yokoi-h/work
$ sudo docker version
Client:
Version: 1.9.0
API version: 1.21
Go version: go1.4.2
Git commit: 76d6bc9
Built: Tue Nov 3 17:43:42 UTC 2015
OS/Arch: linux/amd64
Server:
Version: 1.9.0
API version: 1.21
Go version: go1.4.2
Git commit: 76d6bc9
Built: Tue Nov 3 17:43:42 UTC 2015
OS/Arch: linux/amd64
```
## Set up dependencies
Execute the following commands inside the VM to install the dependencies:
1. Install pip and [pipework](https://github.com/jpetazzo/pipework).
```shell
$ sudo apt-get update
$ sudo apt-get install git python3-pip python3-dev iputils-arping bridge-utils lv
$ sudo wget https://raw.github.com/jpetazzo/pipework/master/pipework -O /usr/local/bin/pipework
$ sudo chmod 755 /usr/local/bin/pipework
```
1. Get docker images.
Download docker images pertaining to GoBGP testing.
```shell
$ sudo docker pull golang:1.7
$ sudo docker pull osrg/gobgp
$ sudo docker pull osrg/quagga
$ sudo docker pull osrg/quagga:v1.0
$ sudo docker pull osrg/exabgp
```
1. Clone GoBGP and install python libraries.
```shell
$ mkdir -p $GOPATH/src/github.com/osrg
$ cd $GOPATH/src/github.com/osrg
$ git clone https://github.com/osrg/gobgp.git
$ cd ./gobgp/test
$ sudo pip install -r pip-requires.txt
```
## Install local source code
You need to install local source code into GoBGP docker container.
You also need this operation at every modification to the source code.
```shell
$ cd $GOPATH/src/github.com/osrg/gobgp
$ sudo fab2 -r ./test/lib make-gobgp-ctn
```
## Run test
1. Run all test.
You can run all scenario tests with run_all_tests.sh.
If all tests passed, you can see "all tests passed successfully" at the end of the test.
```shell
$ cd $GOPATH/src/github.com/osrg/gobgp/test/scenario_test
$ ./run_all_tests.sh
...
OK
all tests passed successfully
```
1. Run each test.
You can run scenario tests individually with each test file.
See `test/scenario_test/*.py`, for the individual test files.
```shell
$ cd $GOPATH/src/github.com/osrg/gobgp/test/scenario_test
$ sudo -E PYTHONPATH=$GOBGP/test python3 <scenario test name>.py
...
OK
```
## Clean up
A lot of containers, networks temporary files are created during the test.
Let's clean up.
```shell
$ sudo docker rm -f $(sudo docker ps -a -q -f "label=gobgp-test")
$ sudo docker network prune -f --filter "label=gobgp-test"
$ sudo rm -rf /tmp/gobgp
```
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