diff --git a/app/models/etudiants.py b/app/models/etudiants.py
index e00f846507..a451526f7d 100644
--- a/app/models/etudiants.py
+++ b/app/models/etudiants.py
@@ -74,9 +74,11 @@ class Identite(db.Model):
     )
 
     # Relations avec les assiduites et les justificatifs
-    assiduites = db.relationship("Assiduite", back_populates="etudiant", lazy="dynamic")
+    assiduites = db.relationship(
+        "Assiduite", back_populates="etudiant", lazy="dynamic", cascade="all, delete"
+    )
     justificatifs = db.relationship(
-        "Justificatif", back_populates="etudiant", lazy="dynamic"
+        "Justificatif", back_populates="etudiant", lazy="dynamic", cascade="all, delete"
     )
 
     def __repr__(self):
diff --git a/tests/unit/test_sco_basic.py b/tests/unit/test_sco_basic.py
index 030207e5ec..be078c9211 100644
--- a/tests/unit/test_sco_basic.py
+++ b/tests/unit/test_sco_basic.py
@@ -23,15 +23,18 @@ import app
 from app import db
 from app.comp import res_sem
 from app.comp.res_compat import NotesTableCompat
-from app.models import FormSemestre
+from app.models import FormSemestre, Assiduite, Justificatif
 from app.scodoc import sco_formsemestre
 from app.scodoc import sco_bulletins
 from app.scodoc import codes_cursus
+from app.scodoc import sco_assiduites as scass
 from app.scodoc import sco_evaluations
 from app.scodoc import sco_evaluation_db
 from app.scodoc import sco_formsemestre_validation
 from app.scodoc import sco_cursus_dut
 from app.scodoc import sco_saisie_notes
+from app.scodoc.sco_utils import EtatAssiduite, EtatJustificatif, localize_datetime
+from app.models.assiduites import compute_assiduites_justified
 
 DEPT = TestConfig.DEPT_TEST
 
@@ -186,21 +189,10 @@ def run_sco_basic(verbose=False) -> FormSemestre:
     # -----------------------
     etudid = etuds[0]["etudid"]
 
-    # XXX TODO-ASSIDUITE
-    # _ = sco_abs_views.doSignaleAbsence(
-    #     "15/01/2020", "18/01/2020", demijournee=2, etudid=etudid
-    # )
-
-    # _ = sco_abs_views.doJustifAbsence(
-    #     "17/01/2020",
-    #     "18/01/2020",
-    #     demijournee=2,
-    #     etudid=etudid,
-    # )
-
-    # nbabs, nbabsjust = sco_abs.get_abs_count(etudid, sem)
-    # assert nbabs == 6, f"incorrect nbabs ({nbabs})"
-    # assert nbabsjust == 2, f"incorrect nbabsjust ({nbabsjust})"
+    _signal_absences_justificatifs(etudid)
+    nbabs, nbabsjust = scass.get_assiduites_count(etudid, sem)
+    assert nbabs == 6, f"incorrect nbabs ({nbabs})"
+    assert nbabsjust == 2, f"incorrect nbabsjust ({nbabsjust})"
 
     # --- Permission saisie notes et décisions de jury, avec ou sans démission ou défaillance
     # on n'a pas encore saisi de décisions
@@ -251,3 +243,30 @@ def run_sco_basic(verbose=False) -> FormSemestre:
     )
     assert q.count() == 0
     return formsemestre
+
+
+def _signal_absences_justificatifs(etudid: int):
+    etud: Identite = Identite.query.get(etudid)
+    db.session.commit()
+    for i in range(15, 18):
+        db.session.add(
+            Assiduite.create_assiduite(
+                etud=etud,
+                date_debut=localize_datetime(datetime.datetime(2020, 1, i, 8, 0)),
+                date_fin=localize_datetime(datetime.datetime(2020, 1, i, 18, 0)),
+                etat=EtatAssiduite.ABSENT,
+            )
+        )
+    db.session.commit()
+    justif: Justificatif = Justificatif.create_justificatif(
+        etud=etud,
+        date_debut=localize_datetime(datetime.datetime(2020, 1, 17, 8, 0)),
+        date_fin=localize_datetime(datetime.datetime(2020, 1, 17, 18, 0)),
+        etat=EtatJustificatif.VALIDE,
+    )
+    db.session.add(justif)
+    compute_assiduites_justified(
+        etud.etudid,
+        [justif],
+    )
+    db.session.commit()