public function testCollectionsUsedByPrivateFields()
{
$structure = new Structure();
$structure->add($foo = new Field('foo', Mapping::TYPE_STRING, ['private' => true, 'used_by_collections' => [1, 2]]));
$structure->add(new Field('foo', Mapping::TYPE_STRING, ['private' => true, 'used_by_collections' => [2, 3]]));
$structure->add(new Field('bar', Mapping::TYPE_STRING, ['private' => true, 'used_by_collections' => [2, 3]]));
$structure->add(new Field('baz', Mapping::TYPE_STRING, ['private' => false]));
$this->assertEquals([1, 2], $foo->getDependantCollections());
static $expected = ['foo' => [1, 2, 3], 'bar' => [2, 3]];
$this->assertEquals($expected, $structure->getCollectionsUsedByPrivateFields());
}
