add tests for now and today variables in templates (#29887)

tests/test_templates.py

@@ -1,5 +1,6 @@
 # -*- coding: utf-8 -*-
 
+import datetime
 import pytest
 
 from quixote import cleanup
@@ -13,6 +14,7 @@ def setup_module(module):
     cleanup()
     global pub
     pub = create_temporary_pub()
+    pub.substitutions.feed(pub)
 
 
 def teardown_module(module):
@@ -59,6 +61,36 @@ def test_template():
     tmpl = Template('[if-any foo][foo][endif]')
     assert tmpl.render({'foo': 'bar'}) == '[if-any foo][foo][endif]'
 
+def test_now_and_today_variables():
+    # create a today string, verify it contains the year, at least
+    today = Template('{{d}}').render({'d': datetime.date.today()})
+    assert datetime.date.today().strftime('%Y') in today
+
+    tmpl = Template('{{ today }}')
+    for mode in (None, 'lazy'):
+        context = pub.substitutions.get_context_variables(mode=mode)
+        assert tmpl.render(context) == today
+    tmpl = Template('{{ now }}')
+    for mode in (None, 'lazy'):
+        context = pub.substitutions.get_context_variables(mode=mode)
+        assert today in tmpl.render(context)  # contains the date,
+        assert tmpl.render(context) != today  # but not only
+
+    # ezt templates (legacy)
+    today = Template('[t]').render({'t': datetime.date.today()})
+    assert today == datetime.date.today().strftime('%Y-%m-%d')
+    now = Template('[n]').render({'n': datetime.datetime.now()})
+    assert now == datetime.datetime.now().strftime('%Y-%m-%d %H:%M')
+
+    tmpl = Template('[today]')
+    for mode in (None, 'lazy'):
+        context = pub.substitutions.get_context_variables(mode=mode)
+        assert tmpl.render(context) == today
+    tmpl = Template('[now]')
+    for mode in (None, 'lazy'):
+        context = pub.substitutions.get_context_variables(mode=mode)
+        assert tmpl.render(context) == now
+
 def test_template_templatetag():
     # check qommon templatetags are always loaded
     tmpl = Template('{{ date|parse_datetime|date:"Y" }}')