diff --git a/tests/unit/test_caches.py b/tests/unit/test_caches.py
new file mode 100644
index 0000000000..2b06f14862
--- /dev/null
+++ b/tests/unit/test_caches.py
@@ -0,0 +1,31 @@
+# -*- coding: UTF-8 -*
+
+"""Unit tests for caches
+
+
+Ce test suppose une base département existante.
+
+Usage: pytest tests/unit/test_caches.py
+"""
+
+
+from flask import current_app
+
+from app import db
+from app.scodoc import sco_cache
+from app.scodoc import sco_formsemestre
+
+DEPT = "RT"  # ce département (BD) doit exister
+
+
+def test_notes_table(test_client):
+    """Test construction et cache de NotesTable"""
+    sems = sco_formsemestre.do_formsemestre_list(None)
+    assert len(sems)
+    sem = sems[0]
+    formsemestre_id = sem["formsemestre_id"]
+    nt = sco_cache.NotesTableCache.get(formsemestre_id)
+    assert nt
+    assert sco_cache.NotesTableCache.get(formsemestre_id, compute=False)
+    sco_cache.invalidate_formsemestre(formsemestre_id)
+    assert not sco_cache.NotesTableCache.get(formsemestre_id, compute=False)