Reject text after matching string in from_format() (#372)

* Reject text after matching string in from_format()

* Let black have its way

Author: altendky

pendulum/formatting/formatter.py

@@ -403,7 +403,7 @@ def parse(
             lambda m: self._replace_tokens(m.group(0), locale), escaped_fmt
         )
 
-        if not re.match(pattern, time):
+        if not re.search("^" + pattern + "$", time):
             raise ValueError("String does not match format {}".format(fmt))
 
         re.sub(pattern, lambda m: self._get_parsed_values(m, parsed, locale, now), time)

tests/datetime/test_from_format.py

@@ -13,6 +13,11 @@ def test_from_format_returns_datetime():
     assert "UTC" == d.timezone_name
 
 
+def test_from_format_rejects_extra_text():
+    with pytest.raises(ValueError):
+        pendulum.from_format("1975-05-21 22:32:11 extra text", "YYYY-MM-DD HH:mm:ss")
+
+
 def test_from_format_with_timezone_string():
     d = pendulum.from_format(
         "1975-05-21 22:32:11", "YYYY-MM-DD HH:mm:ss", tz="Europe/London"