gistfile1.php

<?php
$I = new WebGuy($scenario);
$I->wantTo('check bloc promotions');
$I->amOnPage('/test.html');

$I->see('TODO supply a title');
$input_val = $I->grabValueFrom('input[name=email]'); // 
 \PHPUnit_Framework_Assert::assertEquals('votre e-mail',  $input_val );
$I->dontSeeError();

/*
./codecept.phar run tests/nojs/bloc_newsletterCept.php

Codeception PHP Testing Framework v1.8.3
Powered by PHPUnit 3.7.28 by Sebastian Bergmann.
?

                                                    
  [PHPUnit_Framework_ExpectationFailedException]    
  Failed asserting that Codeception\Maybe Object (  
      'position' => 0                               
      'val' => null                                 
      'assocArray' => null                          
  ) matches expected 'votre e-mail'.                
                                                    
*/