Fix deprecation for symfony/config 4.2+

src/DependencyInjection/Configuration.php

@@ -31,8 +31,14 @@ class Configuration implements ConfigurationInterface
      */
     public function getConfigTreeBuilder()
     {
-        $treeBuilder = new TreeBuilder();
-        $rootNode = $treeBuilder->root('sonata_doctrine_orm_admin', 'array');
+        $treeBuilder = new TreeBuilder('sonata_doctrine_orm_admin');
+
+        // Keep compatibility with symfony/config < 4.2
+        if (!\method_exists($treeBuilder, 'getRootNode')) {
+            $rootNode = $treeBuilder->root('sonata_doctrine_orm_admin');
+        } else {
+            $rootNode = $treeBuilder->getRootNode();
+        }
 
         $rootNode
             ->children()

tests/DependencyInjection/ConfigurationTest.php

@@ -0,0 +1,99 @@
+<?php
+
+/*
+ * This file is part of the Sonata Project package.
+ *
+ * (c) Thomas Rabaix <thomas.rabaix@sonata-project.org>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Sonata\DoctrineORMAdminBundle\Tests;
+
+use PHPUnit\Framework\TestCase;
+use Sonata\DoctrineORMAdminBundle\DependencyInjection\Configuration;
+use Symfony\Component\Config\Definition\Exception\InvalidConfigurationException;
+use Symfony\Component\Config\Definition\Exception\InvalidTypeException;
+use Symfony\Component\Config\Definition\Processor;
+
+class ConfigurationTest extends TestCase
+{
+    public function testDefaultOptions()
+    {
+        $config = $this->process([]);
+
+        $this->assertNull($config['entity_manager']);
+        $this->assertTrue($config['audit']['force']);
+        $this->assertArraySubset(['@SonataDoctrineORMAdmin/Form/form_admin_fields.html.twig'], $config['templates']['form']);
+        $this->assertArraySubset(['@SonataDoctrineORMAdmin/Form/filter_admin_fields.html.twig'], $config['templates']['filter']);
+        $this->assertArrayNotHasKey('types', $config['templates']);
+    }
+
+    public function testAuditForceWithInvalidFormat()
+    {
+        $this->expectException(InvalidTypeException::class);
+
+        $this->process([[
+            'audit' => [
+                'force' => '1',
+            ],
+        ]]);
+    }
+
+    public function testCustomTemplates()
+    {
+        $config = $this->process([[
+            'templates' => [
+                'form' => ['form.twig.html', 'form_extra.twig.html'],
+                'filter' => ['filter.twig.html'],
+                'types' => [
+                    'list' => [
+                        'array' => 'list_array.twig.html',
+                    ],
+                    'show' => [
+                        'array' => 'show_array.twig.html',
+                    ],
+                ],
+            ],
+        ]]);
+
+        $this->assertSame(['form.twig.html', 'form_extra.twig.html'], $config['templates']['form']);
+        $this->assertSame(['filter.twig.html'], $config['templates']['filter']);
+        $this->assertSame([
+            'list' => [
+                'array' => 'list_array.twig.html',
+            ],
+            'show' => [
+                'array' => 'show_array.twig.html',
+            ],
+        ], $config['templates']['types']);
+    }
+
+    public function testTemplateTypesWithInvalidValues()
+    {
+        $this->expectException(InvalidConfigurationException::class);
+
+        $this->process([[
+            'templates' => [
+                'types' => [
+                    'edit' => [],
+                ],
+            ],
+        ]]);
+    }
+
+    /**
+     * Processes an array of configurations and returns a compiled version.
+     *
+     * @param array $configs An array of raw configurations
+     *
+     * @return array A normalized array
+     */
+    protected function process($configs)
+    {
+        $processor = new Processor();
+
+        return $processor->processConfiguration(new Configuration(), $configs);
+    }
+}