Ajout de src.db.should_rebuild et ses tests

refs #71

tests/test_db.py

@@ -0,0 +1,67 @@
+import time
+
+import pytest
+
+
+@pytest.fixture
+def parquet_and_db(tmp_path, monkeypatch):
+    parquet = tmp_path / "source.parquet"
+    db = tmp_path / "decp.duckdb"
+    parquet.write_bytes(b"fake parquet content")
+    monkeypatch.delenv("REBUILD_DUCKDB", raising=False)
+    monkeypatch.delenv("DEVELOPMENT", raising=False)
+    return parquet, db
+
+
+def test_should_rebuild_when_db_missing(parquet_and_db, monkeypatch):
+    from src.db import should_rebuild
+
+    parquet, db = parquet_and_db
+    monkeypatch.setenv("DEVELOPMENT", "true")
+    assert should_rebuild(db, parquet) is True
+
+
+def test_should_rebuild_prod_when_parquet_newer(parquet_and_db, monkeypatch):
+    from src.db import should_rebuild
+
+    parquet, db = parquet_and_db
+    db.write_bytes(b"x")
+    time.sleep(0.01)
+    parquet.touch()
+    monkeypatch.setenv("DEVELOPMENT", "false")
+    assert should_rebuild(db, parquet) is True
+
+
+def test_should_not_rebuild_prod_when_parquet_older(parquet_and_db, monkeypatch):
+    from src.db import should_rebuild
+
+    parquet, db = parquet_and_db
+    parquet.touch()
+    time.sleep(0.01)
+    db.write_bytes(b"x")
+    monkeypatch.setenv("DEVELOPMENT", "false")
+    assert should_rebuild(db, parquet) is False
+
+
+def test_should_not_rebuild_dev_even_when_parquet_newer(parquet_and_db, monkeypatch):
+    from src.db import should_rebuild
+
+    parquet, db = parquet_and_db
+    db.write_bytes(b"x")
+    time.sleep(0.01)
+    parquet.touch()
+    monkeypatch.setenv("DEVELOPMENT", "true")
+    monkeypatch.delenv("REBUILD_DUCKDB", raising=False)
+    assert should_rebuild(db, parquet) is False
+
+
+def test_should_rebuild_dev_when_rebuild_forced(parquet_and_db, monkeypatch):
+    from src.db import should_rebuild
+
+    parquet, db = parquet_and_db
+    db.write_bytes(b"x")
+    time.sleep(0.01)
+    parquet.touch()
+    monkeypatch.setenv("DEVELOPMENT", "true")
+    monkeypatch.setenv("REBUILD_DUCKDB", "true")
+    assert should_rebuild(db, parquet) is True