PHPUnit error "undefined index : HTTP_HOST"

Question

I have declared a HTTP_HOST as shown below.

public function testReadUser() {

    $_SERVER['HTTP_HOST'] = "x.y";
    .
    .
    .
}

Inspite of this, phpunit gives undefined index error. Why is it?

Answer 1

In your phpunit.xml file, you can set server variables. Add the php element under the phpunit root:

<phpunit>
    <php>
        <server name='HTTP_HOST' value='http://localhost' />
    </php>
</phpunit>

See the docs for more information.

Answer 2

It gives you that error because you're running the tests trough command line interface(CLI). CLI can't obtain that information because there are no requests coming in via HTTP.

Answer 3

You can declare the value (needed by the method your testing) in your test method.

For example:

function testMethod(){
$_SERVER['yourvar']='yourvalue';
...your code making the request via phpunit to the method you are testing
}

By declaring $_SERVER in your test method it will be available to the method you are testing. It works for $_POST and $_GET as well if you need those values those values.