Pass variable to PhpUnit

Question

I developed a set of test cases using phpunit used for testing both development site and the production site. The only difference is the domain name. How can I pass the domain from command line to phpunit test cases so that I do not need to modify every file?

Answer 1

In your phpunit-bootstrap.php you can do something like this:

$site = getenv('DOMAIN');

and use

<php>
  <env name="DOMAIN" value="http://production.com"/>
</php>

in your phpunit.xml file as shown in the documentation.

The downside of this approach is that you need to have two different xml files.

---

Other options are using a custom wrapper script around phpunit like @DavidHarkness showed which tends to work out well

or, if you don't want to run those tests in an automated way (or use both approaches) to do something like:

$site = getenv('DOMAIN');
if(!$site) {
    echo "Enter Domain: ";
    $site = fgets(STDIN);
}

and have the runner check the environment and if nothing is there ask you for the domain.

---

Env or define or anything else

The same goes for pretty much every way that php can take in input from the outside world.

<php>
  <define name="DOMAIN" value="http://production.com"/>
</php>

also works in case you are using a constant anyways, for example.

Answer 2

You could set an environment variable before running the tests. To make this easier on yourself, create a simple script to export the variable and run the tests.

#!/bin/bash

USAGE="Usage: $0 <domain> [file-or-directory]"

if [ "$#" == "0" ]; then
    echo "$USAGE"
    exit 1
fi

export TEST_DOMAIN=$1
shift
phpunit $*

In your base test case you can access this value using getenv:

$domain = getenv('TEST_DOMAIN');

Answer 3

I ran into this too. One way you can do this with bash is to export the ENV variables you want to pass in and chain the phpunit call using ; like so:

#: HOST_NAME="my.host.com"; phpunit MyTestFile.php

That will create a HOST_NAME environment variable and then immediately call your unit test.

Then within your test script you can access the HOST_NAME variable using something like:

$host = getenv('HOST_NAME');