MigrateSourceTestBase.php

Same filename in other branches
  1. 9 core/modules/migrate/tests/src/Kernel/MigrateSourceTestBase.php
  2. 10 core/modules/migrate/tests/src/Kernel/MigrateSourceTestBase.php
  3. 11.x core/modules/migrate/tests/src/Kernel/MigrateSourceTestBase.php

Namespace

Drupal\Tests\migrate\Kernel

File

core/modules/migrate/tests/src/Kernel/MigrateSourceTestBase.php

View source
<?php

namespace Drupal\Tests\migrate\Kernel;

use Drupal\KernelTests\KernelTestBase;
use Drupal\migrate\Plugin\MigrateIdMapInterface;
use Drupal\migrate\Plugin\MigrationInterface;
use Drupal\migrate\Row;

/**
 * Base class for tests of Migrate source plugins.
 */
abstract class MigrateSourceTestBase extends KernelTestBase {
    
    /**
     * {@inheritdoc}
     */
    public static $modules = [
        'migrate',
    ];
    
    /**
     * The mocked migration.
     *
     * @var \Drupal\migrate\Plugin\MigrationInterface|\Prophecy\Prophecy\ObjectProphecy
     */
    protected $migration;
    
    /**
     * The source plugin under test.
     *
     * @var \Drupal\migrate\Plugin\MigrateSourceInterface
     */
    protected $plugin;
    
    /**
     * The data provider.
     *
     * @see \Drupal\Tests\migrate\Kernel\MigrateSourceTestBase::testSource
     *
     * @return array
     *   Array of data sets to test, each of which is a numerically indexed array
     *   with the following elements:
     *   - An array of source data, which can be optionally processed and set up
     *     by subclasses.
     *   - An array of expected result rows.
     *   - (optional) The number of result rows the plugin under test is expected
     *     to return. If this is not a numeric value, the plugin will not be
     *     counted.
     *   - (optional) Array of configuration options for the plugin under test.
     */
    public abstract function providerSource();
    
    /**
     * {@inheritdoc}
     */
    protected function setUp() {
        parent::setUp();
        // Create a mock migration. This will be injected into the source plugin
        // under test.
        $this->migration = $this->prophesize(MigrationInterface::class);
        $this->migration
            ->id()
            ->willReturn($this->randomMachineName(16));
        // Prophesize a useless ID map plugin and an empty set of destination IDs.
        // Calling code can override these prophecies later and set up different
        // behaviors.
        $this->migration
            ->getIdMap()
            ->willReturn($this->prophesize(MigrateIdMapInterface::class)
            ->reveal());
        $this->migration
            ->getDestinationIds()
            ->willReturn([]);
    }
    
    /**
     * Determines the plugin to be tested by reading the class @covers annotation.
     *
     * @return string
     */
    protected function getPluginClass() {
        $annotations = $this->getAnnotations();
        if (isset($annotations['class']['covers'])) {
            return $annotations['class']['covers'][0];
        }
        else {
            $this->fail('No plugin class was specified');
        }
    }
    
    /**
     * Instantiates the source plugin under test.
     *
     * @param array $configuration
     *   The source plugin configuration.
     *
     * @return \Drupal\migrate\Plugin\MigrateSourceInterface|object
     *   The fully configured source plugin.
     */
    protected function getPlugin(array $configuration) {
        // Only create the plugin once per test.
        if ($this->plugin) {
            return $this->plugin;
        }
        $class = ltrim($this->getPluginClass(), '\\');
        
        /** @var \Drupal\migrate\Plugin\MigratePluginManager $plugin_manager */
        $plugin_manager = $this->container
            ->get('plugin.manager.migrate.source');
        foreach ($plugin_manager->getDefinitions() as $id => $definition) {
            if (ltrim($definition['class'], '\\') == $class) {
                $this->plugin = $plugin_manager->createInstance($id, $configuration, $this->migration
                    ->reveal());
                $this->migration
                    ->getSourcePlugin()
                    ->willReturn($this->plugin);
                return $this->plugin;
            }
        }
        $this->fail('No plugin found for class ' . $class);
    }
    
    /**
     * Tests the source plugin against a particular data set.
     *
     * @param array $source_data
     *   The source data that the source plugin will read.
     * @param array $expected_data
     *   The result rows the source plugin is expected to return.
     * @param mixed $expected_count
     *   (optional) How many rows the source plugin is expected to return.
     *   Defaults to count($expected_data). If set to a non-null, non-numeric
     *   value (like FALSE or 'nope'), the source plugin will not be counted.
     * @param array $configuration
     *   (optional) Configuration for the source plugin.
     * @param mixed $high_water
     *   (optional) The value of the high water field.
     *
     * @dataProvider providerSource
     */
    public function testSource(array $source_data, array $expected_data, $expected_count = NULL, array $configuration = [], $high_water = NULL) {
        $plugin = $this->getPlugin($configuration);
        // All source plugins must define IDs.
        $this->assertNotEmpty($plugin->getIds());
        // If there is a high water mark, set it in the high water storage.
        if (isset($high_water)) {
            $this->container
                ->get('keyvalue')
                ->get('migrate:high_water')
                ->set($this->migration
                ->reveal()
                ->id(), $high_water);
        }
        if (is_null($expected_count)) {
            $expected_count = count($expected_data);
        }
        // If an expected count was given, assert it only if the plugin is
        // countable.
        if (is_numeric($expected_count)) {
            $this->assertInstanceOf('\\Countable', $plugin);
            $this->assertCount($expected_count, $plugin);
        }
        $i = 0;
        
        /** @var \Drupal\migrate\Row $row */
        foreach ($plugin as $row) {
            $this->assertInstanceOf(Row::class, $row);
            $expected = $expected_data[$i++];
            $actual = $row->getSource();
            foreach ($expected as $key => $value) {
                $this->assertArrayHasKey($key, $actual);
                $msg = sprintf("Value at 'array[%s][%s]' is not correct.", $i - 1, $key);
                if (is_array($value)) {
                    ksort($value);
                    ksort($actual[$key]);
                    $this->assertEquals($value, $actual[$key], $msg);
                }
                else {
                    $this->assertEquals((string) $value, (string) $actual[$key], $msg);
                }
            }
        }
        // False positives occur if the foreach is not entered. So, confirm the
        // foreach loop was entered if the expected count is greater than 0.
        if ($expected_count > 0) {
            $this->assertGreaterThan(0, $i);
        }
    }

}

Classes

Title Deprecated Summary
MigrateSourceTestBase Base class for tests of Migrate source plugins.

Buggy or inaccurate documentation? Please file an issue. Need support? Need help programming? Connect with the Drupal community.