Cannot run single test with data provider in PHPUnit

Question

I've got a problem when using command line to run tests: if I run phpunit like this:

phpunit -–no-configuration -–filter testAdd DataTest DataProviderTest.php

it works fine. But we use a regular expression to specify exactly the name of the method that we want to be tested:

phpunit -–no-configuration -–filter /::testAdd$/ DataTest DataProviderTest.php

The second approach is not working unfortunately. Source code is:

<?php
class DataTest extends PHPUnit_Framework_TestCase
{
    /**
     * @dataProvider provider
     */
    public function testAdd($a, $b, $c)
    {
        $this->assertEquals($c, $a + $b);
    }

    public function provider()
    {
        return array(
          array(0, 0, 0),
          array(0, 1, 1),
          array(1, 0, 1),
          array(1, 1, 3)
        );
    }
}

?>

Answer 1

The regex to handle tests with or without data sets is

phpunit --filter "/::<method>( with data set .*)?$/" <class> <file>

For example

phpunit --filter "/::testAdd( with data set .*)?$/" DataTest DataProviderTest.php

Since a test method won't have a space in the name unless it has a data set, you could really shrink this to

phpunit --filter "/::testAdd( .*)?$/" DataTest DataProviderTest.php

Answer 2

Like @sjoerd pointed out the name that gets matched against contains the number of the dataset.

That means that this works:

phpunit --filter "testAdd with data set #0" DataTest DataProviderTest.php

against your file produces:

PHPUnit 3.7.0RC1 by Sebastian Bergmann.

.

Time: 0 seconds, Memory: 5.25Mb

OK (1 test, 1 assertion)

tested in PHPUnit 3.5 and upwards.

---

It's not really pretty and having another syntax for this within PHPUnit is definitely preferable but for now it might solve your problem and once someone sends a PR it will be nicer to use ;)

Tracking issue for the nicer syntax on the phpunit github issue tracker

Answer 3

By using a data provider with named datasets it's simpler now:

public function provideData()
{
    yield "dataset name 1" => [
        $expected = 0,
        $val1 = 1,
        $val2 = 2
    ];

    yield "dataset name 2" => [...];
}

$ phpunit --filter "dataset name 2"