1 files changed, 68 insertions, 0 deletions
diff --git a/tests/localization/test_ja.py b/tests/localization/test_ja.py
new file mode 100644
index 0000000..82457fd
--- /dev/null
+++ b/tests/localization/test_ja.py
@@ -0,0 +1,68 @@
+from __future__ import annotations
+
+import pendulum
+
+locale = "ja"
+
+
+def test_diff_for_humans():
+    with pendulum.travel_to(pendulum.datetime(2016, 8, 29), freeze=True):
+        diff_for_humans()
+
+
+def diff_for_humans():
+    d = pendulum.now().subtract(seconds=1)
+    assert d.diff_for_humans(locale=locale) == "数秒 前に"
+
+    d = pendulum.now().subtract(seconds=2)
+    assert d.diff_for_humans(locale=locale) == "数秒 前に"
+
+    d = pendulum.now().subtract(seconds=21)
+    assert d.diff_for_humans(locale=locale) == "21 秒前"
+
+    d = pendulum.now().subtract(minutes=1)
+    assert d.diff_for_humans(locale=locale) == "1 分前"
+
+    d = pendulum.now().subtract(minutes=2)
+    assert d.diff_for_humans(locale=locale) == "2 分前"
+
+    d = pendulum.now().subtract(hours=1)
+    assert d.diff_for_humans(locale=locale) == "1 時間前"
+
+    d = pendulum.now().subtract(hours=2)
+    assert d.diff_for_humans(locale=locale) == "2 時間前"
+
+    d = pendulum.now().subtract(days=1)
+    assert d.diff_for_humans(locale=locale) == "1 日前"
+
+    d = pendulum.now().subtract(days=2)
+    assert d.diff_for_humans(locale=locale) == "2 日前"
+
+    d = pendulum.now().subtract(weeks=1)
+    assert d.diff_for_humans(locale=locale) == "1 週間前"
+
+    d = pendulum.now().subtract(weeks=2)
+    assert d.diff_for_humans(locale=locale) == "2 週間前"
+
+    d = pendulum.now().subtract(months=1)
+    assert d.diff_for_humans(locale=locale) == "1 か月前"
+
+    d = pendulum.now().subtract(months=2)
+    assert d.diff_for_humans(locale=locale) == "2 か月前"
+
+    d = pendulum.now().subtract(years=1)
+    assert d.diff_for_humans(locale=locale) == "1 年前"
+
+    d = pendulum.now().subtract(years=2)
+    assert d.diff_for_humans(locale=locale) == "2 年前"
+
+    d = pendulum.now().add(seconds=1)
+    assert d.diff_for_humans(locale=locale) == "今から 数秒"
+
+    d = pendulum.now().add(seconds=1)
+    d2 = pendulum.now()
+    assert d.diff_for_humans(d2, locale=locale) == "数秒 後"
+    assert d2.diff_for_humans(d, locale=locale) == "数秒 前"
+
+    assert d.diff_for_humans(d2, True, locale=locale) == "数秒"
+    assert d2.diff_for_humans(d.add(seconds=1), True, locale=locale) == "数秒"