Fix ISO week dates not being parsed properly in from_format()

Author: sdispater

CHANGELOG.md

@@ -1,5 +1,12 @@
 # Change Log
 
+## [Unreleased]
+
+### Fixed
+
+- Fixed ISO week dates not being parsed properly in `fom_format()`.
+
+
 ## [2.0.4] - 2018-10-30
 
 ### Fixed

pendulum/formatting/formatter.py

@@ -469,7 +469,7 @@ def _check_parsed(self, parsed, now):  # type: (dict, pendulum.DateTime) -> dict
 
         if parsed["day_of_year"] is not None:
             dt = pendulum.parse(
-                "{}-{}".format(validated["year"], parsed["day_of_year"])
+                "{}-{:>03d}".format(validated["year"], parsed["day_of_year"])
             )
 
             validated["month"] = dt.month

tests/datetime/test_from_format.py

@@ -132,6 +132,7 @@ def test_from_format_with_invalid_padded_day():
             "1975-12-25T14:15:16+03:00",
             None,
         ),
+        ("190022215", "YYDDDDHHmm", "2019-01-02T22:15:00+00:00", None),
     ],
 )
 def test_from_format(text, fmt, expected, now):