config: Assume abbreviated dates are in the past.

oxrlib/config.py

@@ -65,7 +65,16 @@ class Configuration:
         if (len(numbers) > 3) or (len(seen_seps) > 1):
             raise ValueError("can't parse date from {!r}".format(s))
         replacements = dict(zip(['day', 'month', 'year'], reversed(numbers)))
-        return self.TODAY.replace(**replacements)
+        retval = self.TODAY.replace(**replacements)
+        if retval > self.TODAY:
+            if 'year' in replacements:
+                pass
+            elif 'month' in replacements:
+                retval = retval.replace(year=retval.year - 1)
+            else:
+                retval -= datetime.timedelta(days=replacements['day'])
+                retval = retval.replace(**replacements)
+        return retval
 
     def _build_argparser(self):
         prog_parser = argparse.ArgumentParser()

setup.py

@@ -5,7 +5,7 @@ from setuptools import setup
 setup(
     name='oxrlib',
     description="Library to query the Open Exchange Rates (OXR) API",
-    version='1.5',
+    version='1.6',
     author='Brett Smith',
     author_email='brettcsmith@brettcsmith.org',
     license='GNU AGPLv3+',

tests/test_Configuration.py

@@ -89,16 +89,21 @@ def test_historical_argparsing_failure(arglist, any_date):
         assert not vars(config.args), "bad arglist succeeded"
 
 @pytest.mark.parametrize('date_s,expect_year,expect_month,expect_day', [
-    ('5', 1965, 4, 5),
-    ('05', 1965, 4, 5),
+    ('5', 1965, 7, 5),
+    ('05', 1965, 7, 5),
+    ('14', 1965, 7, 14),
+    ('15', 1965, 7, 15),
+    ('16', 1965, 6, 16),
     ('3-6', 1965, 3, 6),
-    ('5.10', 1965, 5, 10),
-    ('06-09', 1965, 6, 9),
+    ('11.10', 1964, 11, 10),
+    ('07-14', 1965, 7, 14),
+    ('07/15', 1965, 7, 15),
+    ('7.16', 1964, 7, 16),
     ('917/12/12', 917, 12, 12),
     ('2017-11-1', 2017, 11, 1),
 ])
 def test_good_date_parsing(date_s, expect_year, expect_month, expect_day):
-    oxrlib.config.Configuration.TODAY = datetime.date(1965, 4, 3)
+    oxrlib.config.Configuration.TODAY = datetime.date(1965, 7, 15)
     config = config_from(os.devnull, ['historical', date_s])
     actual_date = config.args.date
     assert actual_date.year == expect_year