public function testFindLazy()
 {
     parent::testFindLazy();
     $product = Product::findOne(1);
     $this->assertFalse($product->isRelationPopulated('supplier'));
     $supplier = $product->supplier;
     $this->assertTrue($product->isRelationPopulated('supplier'));
     $this->assertEquals(1, $supplier->primaryKey);
     $product = Product::findOne(1);
     $this->assertFalse($product->isRelationPopulated('supplier'));
     $suppliers = $product->getSupplier()->all();
     $this->assertFalse($product->isRelationPopulated('supplier'));
     $this->assertEquals(0, count($product->relatedRecords));
     $this->assertEquals(1, count($suppliers));
     $this->assertEquals(1, $suppliers[0]->id);
 }