phpunitHow to use fixtures with PHPUnit?

Fixtures are used to provide a known set of data to test against. PHPUnit provides a DataProvider annotation to allow for the creation of fixtures.

Example code

<?php

use PHPUnit\Framework\TestCase;

class MyTest extends TestCase
{
    /**
     * @dataProvider fixtureProvider
     */
    public function testFixture($fixture)
    {
        // Test code here
    }

    public function fixtureProvider()
    {
        return [
            [1],
            [2],
            [3],
        ];
    }
}

Output example

PHPUnit 8.5.8 by Sebastian Bergmann and contributors.

.                                                                   3 / 3 (100%)

Time: 00:00.001, Memory: 6.00 MB

OK (3 tests, 3 assertions)

The DataProvider annotation is used to specify a method that will provide the data for the test. The method should return an array of arrays, with each inner array containing the data for a single test.

The example code creates a test class with a testFixture method that is annotated with the @dataProvider annotation. The fixtureProvider method is used to provide the data for the test. The fixtureProvider method returns an array of arrays, each containing a single value.

Helpful links

• PHPUnit Documentation - Data Providers

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