Running Integration Tests
Integration tests require the Magento runtime environment, so they need a little preparation before they can be executed. After preparing the system, you can execute tests using the command line interface or within an IDE like PhpStorm.
Set up the integration test framework
To run integration tests, you must create and configure a test database. You may also want to adjust the PHPUnit configuration, depending on your requirements.
Command Line Interface (CLI)
This option can be used for running tests locally during development or on remote servers during continuous integration.
Running integration tests inside an IDE, like PhpStorm, is convenient during development. This is mostly used when writing a new integration test.
Other than convenience, there is no benefit over running the tests on the console.
Prepare integration test execution
Before you can use the Magento integration test framework, you must prepare the test environment. Prerequisites for the test environment include the following:
- A dedicated integration test database
- The test framework database configuration
- The PHPUnit configuration matches the purpose of the integration test execution
Integration test database
By default, for every integration test run, the test framework installs a fresh Magento test database.
Do not use the same database as the real Magento instance. Any data, such as products, customers, orders, and everything else, will be lost!
For safety reasons, it is recommended to use a dedicated database user for running the tests. That database user should not have access to any other databases. Here are examples of SQL commands that create a test database and a dedicated test user account:
CREATE DATABASE magento_integration_tests; GRANT ALL ON magento_integration_tests.* TO 'magento2_test_user'@'localhost' IDENTIFIED BY 'ftYx4pm6^x9.&^hB';
Replace the example database, username, and password with something that matches your requirements and conventions.
Configure the framework for test environment
The Magento 2 integration test framework comes with a configuration file template,
Copy this file to
.dist suffix) and add your test database access credentials.
The contents will look similar to the following. Each array key will be passed as an option argument when the test
framework executes the
setup:install command. Use the database access credentials for your test database instead of the
example values below.
<?php return [ 'db-host' => 'localhost', 'db-user' => 'magento2_test_user', 'db-password' => 'ftYx4pm6^x9.&^hB', 'db-name' => 'magento_integration_tests', 'db-prefix' => '', 'backend-frontname' => 'backend', 'admin-user' => \Magento\TestFramework\Bootstrap::ADMIN_NAME, 'admin-password' => \Magento\TestFramework\Bootstrap::ADMIN_PASSWORD, 'admin-email' => \Magento\TestFramework\Bootstrap::ADMIN_EMAIL, 'admin-firstname' => \Magento\TestFramework\Bootstrap::ADMIN_FIRSTNAME, 'admin-lastname' => \Magento\TestFramework\Bootstrap::ADMIN_LASTNAME, 'amqp-host' => 'localhost', 'amqp-port' => '5672', 'amqp-user' => 'guest', 'amqp-password' => 'guest', ];
Leave all the settings that do not start with
amqp- at their default values.
You can include additional setup options—available to the
setup:install command—in the test configuration file. A
complete list of options is available here.
Adjust the PHPUnit configuration file
dev/tests/integration/phpunit.xml.dist file for the default integration test configuration.
Without adjustments, the default configuration runs all core integration tests, which is useful on a continuous integration server.
When making adjustments to the configuration, copy the default file to
dev/tests/integration/phpunit.xml (again, without the
.dist suffix) and make your changes there. That way, your changes will not be overwritten during Magento upgrades.
There are many settings in the file. This guide will only describe three common adjustments. See PHPUnit documentation and comments in the default file for more information about the available configuration settings.
<const name="TESTS_CLEANUP" value="enabled"/>
If this constant is set to
enabled, the integration test framework cleans the test database and reinstalls Magento on every test run.
This way, any new modules will be automatically picked up and any artifacts left behind by previous test runs will be removed.
It also causes the test framework to flush the test Magento configuration, the cache
, and the code generation before executing any tests.
The downside of setting
enabled is that the reinstallation of Magento takes time; the exact time depends on the host you are using to run the integration tests and the Magento version.
During the development of new integration tests, where only a subset of the tests is executed repeatedly, that overhead of setting up a fresh execution environment for each run quickly becomes a burden.
In that case, the
TEST_CLEANUP constant can be set to
The test execution will start much quicker, but as a consequence the developer must manually flush the cache and the database when needed.
The integration test framework creates the temporary test files beneath the directory
dev/tests/integration/tmp/sandbox-* (followed by a long hash ID).
To force the test framework to regenerate the cache and the other files, remove the directory:
rm -r dev/tests/integration/tmp/sandbox-*
phpunit.xml.dist file does not contain any PHP
However, sometimes the PHP
configuration restricts the amount of memory PHP may consume.
This can make it impossible to run the integration tests.
You can turn off the PHP memory limit by adding the following configuration to the
<php> section of the integration test
<ini name="memory_limit" value="-1"/>
Execute third party integration tests
Magento code integration tests reside in the
For core tests, it makes sense that the integration tests do not reside within individual modules, because most integration tests execute code from many different modules.
Specific integration tests for shop implementation could also be placed within a different subdirectory of
dev/tests/integration/testsuite, and then would be executed together with the core tests.
However, third-party Magento extensions are contained within a single directory and might supply custom integration tests too.
These tests usually reside in the
Test/Integration/ subdirectory within the module
These third-party integration tests are not picked up by the default integration test configuration.
You can add a test suite configuration, like the following, to the
<testsuites> section of the
phpunit.xml file so they are included during test execution.
<testsuite name="Third Party Integration Tests"> <directory>../../../app/code/*/*/Test/Integration</directory> <directory>../../../vendor/*/module-*/Test/Integration</directory> <exclude>../../../app/code/Magento</exclude> <exclude>../../../vendor/magento</exclude> </testsuite>
Such a test suite configuration can then be executed using the
--testsuite <name> command option. For example, if you are in the
php ../../../vendor/bin/phpunit --testsuite "Third Party Integration Tests"
Run integration tests in the CLI
The most common way to execute integration tests is using the command line interface (CLI).
Ensure you have prepared the integration test environment before starting.
Integration tests must be executed from the
dev/tests/integration working directory.
The test configuration resides in that directory and will be picked up by
phpunit automatically, without the need to specify it as a command line option.
Run all integration tests
By default, if no additional arguments are specified, the test configuration executes all integration tests in the
PHPUnit 4.1.0 by Sebastian Bergmann. Configuration read from /var/www/magento2/dev/tests/integration/phpunit.xml ..........................
The path to the
phpunit executable installed by Composer
into the vendor directory is used.
Run only a custom testsuite
PHPUnit offers several ways to only execute a subset of tests.
For example, it is common to only execute a single test suite from the
../../../vendor/bin/phpunit --testsuite "Memory Usage Tests"
Run tests from a specific directory tree
To execute only the tests within a specific directory (for example an extension), pass the path to that directory as an argument to
Run a single test class
When developing a new integration test class, it is common to run only that single test many times.
Pass the path to the file containing the test class as an argument to
Run a single test within a test class
You can run only a single test within a test class by specifying the test class together with the
--filter argument and the name to select the test that you are currently developing:
../../../vendor/bin/phpunit --filter 'testOnlyThisOneIsExecuted' ../../../app/code/Acme/Example/Test/Integration/ExampleTest.php
Can’t read files specified as arguments
This happens if the integration tests are executed from the wrong directory.
Could not read “dev/tests/integration/phpunit.xml”
This error happens if the integration tests are executed from a different directory than
To fix the issue, change to the
dev/tests/integration directory, adjust any relative paths accordingly, and run the tests again.
Unable to connect to MySQL
The PHP interpreter must be able to connect to the test database. By default, this means the tests have to run on the same host as the MySQL server. This problem most commonly occurs during development with Vagrant or Docker, where the Magento database is running on a virtual machine. If the tests then are executed using a PHP interpreter on the host system, the database might not be accessible.
The error usually looks something like this:
exception 'PDOException' with message 'SQLSTATE[HY000]  No such file or directory' in /var/www/magento2/vendor/magento/zendframework1/library/Zend/Db/Adapter/Pdo/Abstract.php:129
There are many ways this problem can be resolved, but the easiest is to run the tests in the virtual machine as well.
Run integration tests in PhpStorm
When writing new integration tests or during debugging, it is convenient to execute tests from within the PhpStorm IDE.
Ensure you have prepared the integration test environment before starting.
Create an integration test run configuration
Setting up a run configuration for integration tests is very similar to creating a run configuration for unit tests.
See Running Unit Tests in PhpStorm for instructions on creating a basic run configuration. Then, configure the integration test to use the configuration file.
Use the integration test configuration file
The only difference in the run configuration is that the integration test
phpunit.xml configuration file from the
dev/tests/integration directory must be selected.