19 declare(strict_types=1);
    31         $field = $this->getMockBuilder(Field::class)->disableOriginalConstructor()->getMock();
    32         $ref_field = $this->getMockBuilder(Field::class)->disableOriginalConstructor()->getMock();
    35         $this->assertInstanceOf(Association::class, $instance);
    40         $field = $this->getMockBuilder(Field::class)->disableOriginalConstructor()->getMock();
    41         $ref_field = $this->getMockBuilder(Field::class)->disableOriginalConstructor()->getMock();
    44         $this->assertEquals($field, $instance->field());
    49         $field = $this->getMockBuilder(Field::class)->disableOriginalConstructor()->getMock();
    50         $ref_field = $this->getMockBuilder(Field::class)->disableOriginalConstructor()->getMock();
    53         $this->assertEquals($ref_field, $instance->referenceField());