public function testMergeInstances()
{
$targetConfig = ['foo' => new \stdClass(), 'bar' => new \stdClass()];
$target = new Services();
foreach ($targetConfig as $key => $item) {
$target->set($key, $item);
}
$sourceConfig = ['bar' => new \stdClass(), 'baz' => new \stdClass()];
$source = new Services();
foreach ($sourceConfig as $key => $item) {
$source->set($key, $item);
}
$return = $target->merge($source);
$this->assertSame($return, $target);
$expected = ['foo' => $targetConfig['foo'], 'bar' => $sourceConfig['bar'], 'baz' => $sourceConfig['baz']];
$this->assertSame($expected, $target->getInstances());
}