diff --git a/tests/test_as_opening_hours.py b/tests/test_as_opening_hours.py
index 0b9979f..8798f84 100644
--- a/tests/test_as_opening_hours.py
+++ b/tests/test_as_opening_hours.py
@@ -5,7 +5,8 @@ import os
 
 from django.utils.safestring import mark_safe
 
-from combo_plugin_gnm.templatetags.gnm import as_opening_hours_badge
+from combo_plugin_gnm.templatetags.gnm import (
+    as_opening_hours_badge, EN_FULL_WEEKDAYS_LIST, FR_WEEKDAYS)
 
 
 BASE_DIR = os.path.dirname(os.path.dirname(__file__))
@@ -308,3 +309,31 @@ def test_mairie_saint_genis_lavak():
     test_html = as_opening_hours_badge(geojson['features'][0])
     klass, label = 'open', u"Ouvert jusqu'à 17h30"
     assert test_html == mark_safe(u'<div class="badge %s"><span>%s</span></div>' % (klass, label))
+
+
+@pytest.mark.freeze_time('2018-01-04 14:59:00')
+@pytest.mark.parametrize(
+    'validFrom, validTrought, badge, message', [
+        ('2017-12-01', '2018-02-01', 'closed', 'Fermé'),
+        ('2018-01-04', '2018-01-04', 'closed', 'Réouvre demain à 8h30'),
+        ('2018-01-04', '2018-01-09', 'closed', "Réouvre mercredi à 8h30"),
+        ('2018-01-04', '2018-01-11', 'closed', "Fermé"),
+        ('2018-01-05', '2018-01-11', 'open', "Ouvert jusqu'à 17h30"),
+    ])
+def test_mairie_holiday_period(validFrom, validTrought, badge, message):
+    ohs = []
+    for weekday in EN_FULL_WEEKDAYS_LIST:
+        ohs.append({
+            'opens': '08:30',
+            'closes': '17:30',
+            'dayOfWeek': 'http://schema.org/%s' % weekday,
+            'validFrom': '2018-01-01T00:00:00+01:00',
+            'validThrough': '2018-06-30T23:59:59+01:00'
+        })
+    ohs.append({
+      'validFrom': '%sT00:00:00+01:00' % validFrom,
+      'validThrough': '%sT23:59:59+01:00' % validTrought,
+    })
+    data = {'properties': {'openinghoursspecification': ohs}}
+    html = as_opening_hours_badge(data)
+    assert html == '<div class="badge %s"><span>%s</span></div>' % (badge, message)