Fix Persian future-time wording and locale metadata

src/humanize/locale/fa_IR/LC_MESSAGES/humanize.po

@@ -1,4 +1,4 @@
-# German translation for humanize.
+# Persian translation for humanize.
 # Copyright (C) 2016 THE PACKAGE'S COPYRIGHT HOLDER
 # This file is distributed under the same license as the humanize package.
 # Christian Klein <chris@5711.org>, 2016.
@@ -10,8 +10,8 @@ msgstr ""
 "POT-Creation-Date: 2023-01-08 19:22+0200\n"
 "PO-Revision-Date: 2017-01-10 02:44+0330\n"
 "Last-Translator: Christian Klein <chris@5711.org>\n"
-"Language-Team: German\n"
-"Language: de\n"
+"Language-Team: Persian\n"
+"Language: fa_IR\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=utf-8\n"
 "Content-Transfer-Encoding: 8bit\n"
@@ -336,7 +336,7 @@ msgstr[1] "%d سال"
 #: src/humanize/time.py:256
 #, python-format
 msgid "%s from now"
-msgstr "%s تا به اکنون"
+msgstr "%s دیگر"
 
 #: src/humanize/time.py:256
 #, python-format

tests/test_i18n.py

@@ -102,6 +102,27 @@ def test_i18n() -> None:
         assert humanize.precisedelta(one_min_three_seconds) == "1 minute and 7 seconds"
 
 
+@pytest.mark.parametrize(
+    "seconds, expected",
+    [
+        (-60, "یک دقیقه پیش"),
+        (-3, "3 ثانیه پیش"),
+        (0, "اکنون"),
+        (3, "3 ثانیه دیگر"),
+        (60, "یک دقیقه دیگر"),
+    ],
+)
+def test_naturaltime_persian(seconds: int, expected: str) -> None:
+    try:
+        humanize.activate("fa_IR")
+        value = NOW + dt.timedelta(seconds=seconds)
+        assert humanize.naturaltime(value, when=NOW) == expected
+    except FileNotFoundError:
+        pytest.skip("Generate .mo with scripts/generate-translation-binaries.sh")
+    finally:
+        humanize.deactivate()
+
+
 def test_intcomma() -> None:
     number = 10_000_000