backend/scraper: Add parser methods for Language

We can expect a number of scraper sources to either give languages as
ISO 639-3 or as their English name, so it makes sense to implement a
simple parser method on our side.

1 files changed, 33 insertions, 0 deletions

diff --git a/tests/scrapers/test_types.py b/tests/scrapers/test_types.py
index ee6b802..33f9f89 100644
--- a/tests/scrapers/test_types.py
+++ b/tests/scrapers/test_types.py
@@ -2,6 +2,7 @@ from datetime import date
 
 import pytest
 
+import hircine.enums as enums
 from hircine.api.types import ScrapedComic
 from hircine.scraper import ScrapeWarning
 from hircine.scraper.types import (
@@ -130,3 +131,35 @@ def test_scraped_comic_silently_ignores_empty(item, attr, empty):
     comic = ScrapedComic.from_generator(gen())
 
     assert getattr(comic, attr) == empty
+
+
+@pytest.mark.parametrize(
+    "input,want",
+    [
+        ("EN", Language(value=enums.Language.EN)),
+        ("de", Language(value=enums.Language.DE)),
+    ],
+)
+def test_language_from_iso_639_3(input, want):
+    assert Language.from_iso_639_3(input) == want
+
+
+def test_language_from_iso_639_3_fails():
+    with pytest.raises(ScrapeWarning, match="Could not parse language code:"):
+        Language.from_iso_639_3("ENG")
+
+
+@pytest.mark.parametrize(
+    "input,want",
+    [
+        ("English", Language(value=enums.Language.EN)),
+        ("german", Language(value=enums.Language.DE)),
+    ],
+)
+def test_language_from_name(input, want):
+    assert Language.from_name(input) == want
+
+
+def test_language_from_name_fails():
+    with pytest.raises(ScrapeWarning, match="Could not parse language name:"):
+        Language.from_name("nonexistent")