public function testMetadataExtras()
{
$this->assertSame([], $this->context->getMetadataExtras());
$this->assertNull($this->context->get(Context::METADATA_EXTRAS));
$metadataExtras = [new TestMetadataExtra('test')];
$this->context->setMetadataExtras($metadataExtras);
$this->assertEquals($metadataExtras, $this->context->getMetadataExtras());
$this->assertEquals($metadataExtras, $this->context->get(Context::METADATA_EXTRAS));
$this->assertTrue($this->context->hasMetadataExtra('test'));
$this->assertFalse($this->context->hasMetadataExtra('another'));
$anotherMetadataExtra = new TestMetadataExtra('another');
$metadataExtras[] = $anotherMetadataExtra;
$this->context->addMetadataExtra($anotherMetadataExtra);
$this->assertEquals($metadataExtras, $this->context->getMetadataExtras());
$this->assertEquals($metadataExtras, $this->context->get(Context::METADATA_EXTRAS));
unset($metadataExtras[0]);
$metadataExtras = array_values($metadataExtras);
$this->context->removeMetadataExtra('test');
$this->assertEquals($metadataExtras, $this->context->getMetadataExtras());
$this->assertEquals($metadataExtras, $this->context->get(Context::METADATA_EXTRAS));
// test remove of non existing extra
$this->context->removeMetadataExtra('test');
$this->assertEquals($metadataExtras, $this->context->getMetadataExtras());
$this->assertEquals($metadataExtras, $this->context->get(Context::METADATA_EXTRAS));
$this->context->setMetadataExtras([]);
$this->assertSame([], $this->context->getMetadataExtras());
$this->assertNull($this->context->get(Context::METADATA_EXTRAS));
}
