public function testAssociateRelationHasMany()
{
$author = new Author($this->conn, ['id' => 1]);
$author->setStored();
$book1 = new Book($this->conn, ['authors_id' => 3]);
$book1->setStored();
$book2 = new Book($this->conn, ['authors_id' => 5]);
$book2->setStored();
$book3 = new Book($this->conn, ['authors_id' => 1]);
$book3->setStored();
$this->assertSame(1, $author->id);
$this->assertSame(3, $book1->authors_id);
$this->assertSame(5, $book2->authors_id);
$this->assertSame(1, $book3->authors_id);
$author->associateRelation('books', new EntityCollection([$book1, $book2, $book3]));
$this->assertSame(1, $author->id);
$this->assertSame(1, $book1->authors_id);
$this->assertSame(1, $book2->authors_id);
$this->assertSame(1, $book3->authors_id);
$this->assertFalse($author->isModified());
$this->assertTrue($book1->isModified());
$this->assertTrue($book2->isModified());
$this->assertFalse($book3->isModified());
}