Add doctest

add doctype for
get_selected_elements
, get_discriminating_labels
and high_discriminating_labels.

app/getter.py

@@ -10,10 +10,14 @@ def get_selected_elements(id_mandatory_labels: int, id_forbiden_labels: str, num
 
     EXEMPLE
     -------
-    >>> print(get_elements("","",0)) # si aucun labels n'est interdit ou obligatoire
+    >>> print(get_selected_elements("","",0)) # si aucun labels n'est interdit ou obligatoire
     [{'id': 4, 'name': 'peugeot, 2000'}, {'id': 3, 'name': 'renault, 2000'}, {'id': 2, 'name': 'renault, bleu, 2000'}, {'id': 1, 'name': 'renault, rouge, 2000'}]
-    >>> print(get_elements("9","",1)) # si la voiture doit-être bleu
-    [{'id': 2, 'name': 'renault, bleu, 2000'}]
+    >>> print(get_selected_elements("1,2","5,9",2)) # si la voiture doit-être bleu
+    [{'id': 4, 'name': 'peugeot, 2000'}]
+    >>> print(get_selected_elements("5","",1))
+    [{'id': 3, 'name': 'renault, 2000'}, {'id': 2, 'name': 'renault, bleu, 2000'}, {'id': 1, 'name': 'renault, rouge, 2000'}]
+    >>> print(get_selected_elements("","5",0))
+    [{'id': 4, 'name': 'peugeot, 2000'}]
     """
     #query slightly vary if number_of_mandatory_labels > 0 or not
     if(number_of_mandatory_labels):
@@ -86,6 +90,13 @@ def get_discriminating_labels(selected_elements: List[Dict[int, str]]) -> List[D
         Return all labels associated to selected elements except non discrminating
         :param elements: list[Dict[str, str]]
         :return: list[Dict[int, str]]
+
+        EXEMPLE
+        -------
+        >>> get_discriminating_labels([{"id":2,"name":"renault, bleu, 2000"}, {"id":1,"name":"renault, rouge, 2000"}])
+        [{'id': 8, 'name': 'rouge'}, {'id': 9, 'name': 'bleu'}]
+        >>> get_discriminating_labels([])
+        []
     """
     id_selected_elements: str = get_ids(selected_elements)
     number_of_selected_elements = len(selected_elements)
@@ -117,6 +128,11 @@ def get_high_discriminating_labels(discriminating_labels: List[Dict[int, str]])
         Return a set of new labels to continue your selection with it
         :param elements: list[Dict[str, str]]
         :return: list[Dict[int, str]]
+
+        EXEMPLE
+        -------
+        >>> get_high_discriminating_labels([{"id":7, "name":"couleur"}, {"id":8, "name":"rouge"}, {"id":9, "name":"bleu"}])
+        [{'id': 7, 'name': 'couleur'}]
     """
     id_discriminating_labels = get_ids(discriminating_labels)