tests: add test on json_data for None measures (#38913)

tests/test_schema1.py

@@ -1,8 +1,11 @@
 # -*- coding: utf-8 -*-
 
+import json
+
 from utils import login, get_table, get_ods_table, get_ods_document
 
 from bijoe.visualization.ods import OFFICE_NS, TABLE_NS
+from bijoe.visualization.utils import Visualization
 
 
 def test_simple(schema1, app, admin):
@@ -173,3 +176,31 @@ def test_truncated_previous_year_range_on_datetime(schema1, app, admin, freezer)
         ['', 'janvier', u'f\xe9vrier', 'mars', 'avril', 'mai', 'juin', 'juillet', u'ao\xfbt', 'Total'],
         ['2017', '10', '1', '1', '1', '1', '1', '1', '1', '17'],
     ]
+
+
+def test_none_percent_json_data(schema1, app, admin):
+    # test conversion to Javascript declaration
+    visu = Visualization.from_json({
+        'warehouse': 'schema1',
+        'cube': 'facts1',
+        'representation': 'graphical',
+        'measure': 'percent',
+        'drilldown_y': 'leftcategory',
+        'drilldown_x': 'date__year',
+    })
+    assert visu.json_data() == [
+        {
+            'coords': [{'value': u'2017'}, {'value': u'cat\xe92'}],
+            'measures': [{'value': None}]
+        },
+        {
+            'coords': [{'value': u'2017'}, {'value': u'cat\xe93'}],
+            'measures': [{'value': None}]},
+        {
+            'coords': [{'value': u'2017'}, {'value': u'cat\xe91'}],
+            'measures': [{'value': 94.11764705882354}]},
+        {
+            'coords': [{'value': u'2017'}, {'value': u'Aucun(e)'}],
+            'measures': [{'value': 5.882352941176471}]
+        }
+    ]