Added i18n tests

tests/test_i18n_async.py

@@ -0,0 +1,58 @@
+from pathlib import Path
+from typing import Any, List, Union
+
+import pytest
+
+from libbot import i18n
+
+
+@pytest.mark.asyncio
+@pytest.mark.parametrize(
+    "key, args, locale, expected",
+    [
+        ("foo", [], None, "bar"),
+        ("foo", [], "uk", "бар"),
+        ("example", ["messages"], None, "okay"),
+        ("example", ["messages"], "uk", "окей"),
+        ("nested", ["callbacks", "default"], None, "sure"),
+        ("nested", ["callbacks", "default"], "uk", "авжеж"),
+    ],
+)
+async def test_i18n_get(
+    key: str, args: List[str], locale: Union[str, None], expected: Any
+):
+    assert (
+        await i18n._(key, *args, locale=locale, locales_root=Path("tests/data/locale"))
+        if locale is not None
+        else await i18n._(key, *args, locales_root=Path("tests/data/locale"))
+    ) == expected
+
+
+@pytest.mark.asyncio
+@pytest.mark.parametrize(
+    "key, args, expected",
+    [
+        ("foo", [], ["bar", "бар"]),
+        ("example", ["messages"], ["okay", "окей"]),
+        ("nested", ["callbacks", "default"], ["sure", "авжеж"]),
+    ],
+)
+async def test_i18n_in_all_locales(key: str, args: List[str], expected: Any):
+    assert (
+        await i18n.in_all_locales(key, *args, locales_root=Path("tests/data/locale"))
+    ) == expected
+
+
+@pytest.mark.asyncio
+@pytest.mark.parametrize(
+    "key, args, expected",
+    [
+        ("foo", [], {"en": "bar", "uk": "бар"}),
+        ("example", ["messages"], {"en": "okay", "uk": "окей"}),
+        ("nested", ["callbacks", "default"], {"en": "sure", "uk": "авжеж"}),
+    ],
+)
+async def test_i18n_in_every_locale(key: str, args: List[str], expected: Any):
+    assert (
+        await i18n.in_every_locale(key, *args, locales_root=Path("tests/data/locale"))
+    ) == expected