member := Member{Refer: 1, Name: "foreign_key_constraints", Profile: Profile{Name: "my_profile"}}

	DB.Create(&member)

	var profile Profile
	if err := DB.First(&profile, "id = ?", member.Profile.ID).Error; err != nil {
		t.Fatalf("failed to find profile, got error: %v", err)
	} else if profile.MemberID != member.ID {
		t.Fatalf("member id is not equal: expects: %v, got: %v", member.ID, profile.MemberID)
	}

	member.Profile = Profile{}