--- /dev/null
+<?php
+
+namespace Drupal\Tests\media\Kernel;
+
+use Drupal\media\Entity\Media;
+use Drupal\media\Entity\MediaType;
+use Drupal\media\MediaInterface;
+use Drupal\media\MediaTypeInterface;
+
+/**
+ * Tests creation of media types and media items.
+ *
+ * @group media
+ */
+class MediaCreationTest extends MediaKernelTestBase {
+
+ /**
+ * Tests creating a media type programmatically.
+ */
+ public function testMediaTypeCreation() {
+ $media_type_storage = $this->container->get('entity_type.manager')->getStorage('media_type');
+
+ $this->assertInstanceOf(MediaTypeInterface::class, MediaType::load($this->testMediaType->id()), 'The new media type has not been correctly created in the database.');
+
+ // Test a media type created from default configuration.
+ $this->container->get('module_installer')->install(['media_test_type']);
+ $test_media_type = $media_type_storage->load('test');
+ $this->assertInstanceOf(MediaTypeInterface::class, $test_media_type, 'The media type from default configuration has not been created in the database.');
+ $this->assertEquals('Test type', $test_media_type->get('label'), 'Could not assure the correct type name.');
+ $this->assertEquals('Test type.', $test_media_type->get('description'), 'Could not assure the correct type description.');
+ $this->assertEquals('test', $test_media_type->get('source'), 'Could not assure the correct media source.');
+ // Source field is not set on the media source, but it should never
+ // be created automatically when a config is being imported.
+ $this->assertEquals(['source_field' => '', 'test_config_value' => 'Kakec'], $test_media_type->get('source_configuration'), 'Could not assure the correct media source configuration.');
+ $this->assertEquals(['metadata_attribute' => 'field_attribute_config_test'], $test_media_type->get('field_map'), 'Could not assure the correct field map.');
+ }
+
+ /**
+ * Tests creating a media item programmatically.
+ */
+ public function testMediaEntityCreation() {
+ $media = Media::create([
+ 'bundle' => $this->testMediaType->id(),
+ 'name' => 'Unnamed',
+ 'field_media_test' => 'Nation of sheep, ruled by wolves, owned by pigs.',
+ ]);
+ $media->save();
+
+ $this->assertNotInstanceOf(MediaInterface::class, Media::load(rand(1000, 9999)), 'Failed asserting a non-existent media.');
+
+ $this->assertInstanceOf(MediaInterface::class, Media::load($media->id()), 'The new media item has not been created in the database.');
+ $this->assertEquals($this->testMediaType->id(), $media->bundle(), 'The media item was not created with the correct type.');
+ $this->assertEquals('Unnamed', $media->getName(), 'The media item was not created with the correct name.');
+ $source_field_name = $media->bundle->entity->getSource()->getSourceFieldDefinition($media->bundle->entity)->getName();
+ $this->assertEquals('Nation of sheep, ruled by wolves, owned by pigs.', $media->get($source_field_name)->value, 'Source returns incorrect source field value.');
+ }
+
+}