public function testApiGetAliases_ReturnsListOfAliases()
{
$register = $this->createRegister();
$aliases = ['alias1' => 'existing1', 'alias2' => 'existing2', 'alias3' => 'existing3'];
foreach ($aliases as $alias => $target) {
$register->registerAlias($alias, $target);
}
$this->assertSame($aliases, $register->getAliases());
}