Add ESC data and improve scoring system functionality

tests/test_esc.py

@@ -0,0 +1,61 @@
+import os
+import sys
+
+import orjson
+
+sys.path.append(os.path.join(os.path.dirname(__file__), ".."))  # noqa: PTH120, PTH118
+
+import tempfile
+from pathlib import Path
+from typing import TypedDict
+
+import pytest
+from typer.testing import CliRunner
+
+from src.__main__ import app
+
+data_path = Path(__file__).parent / "esc_data.json"
+
+
+class ESCData(TypedDict):
+    """TypedDict for ESC data."""
+
+    jury: dict[str, int]
+    televote: dict[str, int]
+    winner: str
+
+
+with data_path.open("r", encoding="utf-8") as f:
+    data = orjson.loads(f.read())
+
+ESC_DATA: dict[int, "ESCData"] = {int(year): value for year, value in data.items()}
+
+
+TADA = "🎉"
+
+
+@pytest.mark.parametrize(("year", "data"), ESC_DATA.items())
+def test_esc_grand_final(year: int, data: ESCData) -> None:
+    """Test the ESC grand final for a given year."""
+    jury_scores: dict[str, int] = data["jury"]
+    televote_scores: dict[str, int] = data["televote"]
+    expected_winner: str = data["winner"]
+
+    with tempfile.NamedTemporaryFile("w", delete=False, encoding="utf-8") as f:
+        for country, score in jury_scores.items():
+            f.write(f"{country} {score}\n")
+
+    inputs: list[str] = []
+    for country in reversed(list(jury_scores.keys())):
+        inputs.append(str(televote_scores[country]))  # noqa: PERF401
+    inputs.append("y")  # to confirm the winner
+
+    runner = CliRunner()
+    result = runner.invoke(app, ["--jury-path", f.name], input="\n".join(inputs))
+
+    try:
+        actual = result.output.split(TADA)[1].strip().split()[0]
+    except Exception:
+        pytest.fail(f"Could not parse winner from output:\n{result.output}", pytrace=False)
+
+    assert actual == expected_winner, f"For {year}, expected winner {expected_winner} but got {actual!r}"