Le Testament
There are two French one-act plays by this name:
There is a Dutch play called Het Testament, said to be adapted "from the French" by P. van der Velde ()[], which could be version of either, though the likely candidate would be the Radet work, but is most likely to be a Dutch version of L'Héritière (1834), a "comédie-vaudeville" by Augustin Eugène Scribe and Germain Delavigne.
See L'Héritière
Le Testament ("The will") by Bernard Le Bovier de Fontenelle
Le Testament ("The will") is a one act comedy by Bernard Le Bovier de Fontenelle()[]
Published in Volume 8 of Oeuvres de Monsiour De Fontenelle by Bernard Brunet, Paris, in 1751.
Facsimile version of Oeuvres de Monsiour De Fontenelle, Google E-book[1]
Le Testament ("The will") by J.B. Radet
Le Testament, is a vaudeville style one act play ("comédie en un acte et en prose, mêlée de vaudevilles") by J.B. Radet ()[]
First performed at the Theatre de Vaudeville on 5 October, 1797 Published 1797
It may have been the source for the Scribe and Delavigne play of 1834.
facsimnile version of the 1797 edition, Google E-book[2]