/**
  * @test
  * @covers ::fromUsernameAndPassword
  * @covers ::basicAuthentication
  */
 public function it_should_provide_a_basic_authentication_token()
 {
     $username = '******';
     $password = '******';
     $credentials = Credentials::fromUsernameAndPassword($username, $password);
     $this->assertSame('bWlrZTppdHdvcmtz', $credentials->basicAuthentication());
 }