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Informations about the package database-test-case

DatabaseTestCase

A library to facilitate testing database interactions using PHPUnit 10+.

Features this library currently provides:

Features this library does not currently provide, but plans to:

The rest of this document details how to install this library, make use of its TestCase, and what database connection objects are supported out-of-the-box.

Installation

Composer is the only supported method for installing this library.

Usage Guide

Using this library starts by creating a PHPUnit test that extends Cspray\DatabaseTestCase\DatabaseTestCase. This class overrides various setup and teardown functions provided by PHPUnit to ensure that a database connection is established and that database interactions happen against a known state. The DatabaseTestCase requires implementations to provide a Cspray\DatabaseTestCase\ConnectionAdapter. This implementation is ultimately responsible for calls to the database required by the testing framework. The ConnectionAdapter also provides access to the underlying connection, for example a PDO instance, that you can use in your code under test. Check out the section titled "Database Connections" for ConnectionAdapter instances supported out-of-the-box and how you could implement your own.

In our example, going to assume that you have a PostgreSQL database with a table that has the following DDL:

Now, we can write a series of tests that interact with the database.

TestCase Hooks

There are several critical things the DatabaseTestCase must take care of for database tests to work properly. To do that we must do something in all the normally used PHPUnit TestCase hooks. To be clear those methods are:

To make sure that DatabaseTestCase processes these hooks correctly they have been marked as final. There are new methods that have been provided that allow for the same effective hooks.

Old Hook New Hook
TestCase::setUpBeforeClass DatabaseTestCase::beforeAll
TestCase::setUp DatabaseTestCase::beforeEach
TestCase::tearDown DatabaseTestCase::afterEach
TestCase::tearDownAfterClass DatabaseTestCase::afterAll

Database Connections

Connection Adapter Connection Instance Library Database Implemented
Cspray\DatabaseTestCase\PdoConnectionAdapter PDO PHP PDO PostgreSQL :white_check_mark:
Cspray\DatabaseTestCase\PdoConnectionAdapter PDO PHP PDO MySQL :white_check_mark:
Cspray\DatabaseTestCase\AmpPostgresConnectionAdapter Amp\Postgres\PostgresLink amphp/postgres@^2 PostgreSQL :white_check_mark:
Amp\Mysql\MysqlLink amphp/mysql@^3 MySQL :x:

All versions of database-test-case with dependencies

PHP Build Version
Package Version
Requires php Version ^8.2
phpunit/phpunit Version ^10.0
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