Slack\User::getPhone PHP Method

    public function getPhone()
    {
        return isset($this->data['profile']['phone']) ? $this->data['profile']['phone'] : null;
    }

 public function testPhone()
 {
     $phone = $this->faker->phoneNumber;
     $user = new User($this->client, ['profile' => ['phone' => $phone]]);
     $this->assertEquals($phone, $user->getPhone());
 }