public function test_parse_one_proposition__vide()
 {
     $texte = '';
     $attendu = $texte;
     $proposition = Analyzer_MeaningOfMorpheme_Statement::parse_one_proposition($texte);
     $reste_attendu = '';
     $this->assertEquals($attendu, $proposition, "");
     $this->assertEquals($reste_attendu, $texte, "");
 }