From a715140af08e42667f9ab6dd91b35d873117649d Mon Sep 17 00:00:00 2001
From: Colin Maudry <colin@maudry.com>
Date: Thu, 23 Apr 2026 00:07:24 +0200
Subject: [PATCH] =?UTF-8?q?test(observatoire):=20int=C3=A9gration=20DuckDB?=
 =?UTF-8?q?=20pour=20prepare=5Fdashboard=5Fdata=20(#72)?=
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---
 tests/test_prepare_dashboard_data.py | 47 ++++++++++++++++++++++++++++
 1 file changed, 47 insertions(+)
 create mode 100644 tests/test_prepare_dashboard_data.py

diff --git a/tests/test_prepare_dashboard_data.py b/tests/test_prepare_dashboard_data.py
new file mode 100644
index 0000000..369a299
--- /dev/null
+++ b/tests/test_prepare_dashboard_data.py
@@ -0,0 +1,47 @@
+import polars as pl
+
+
+def test_returns_dataframe_with_year_filter():
+    from src.utils.data import prepare_dashboard_data
+
+    dff = prepare_dashboard_data(dashboard_year="2025")
+    assert isinstance(dff, pl.DataFrame)
+    assert dff.height == 1
+
+
+def test_year_mismatch_returns_empty():
+    from src.utils.data import prepare_dashboard_data
+
+    dff = prepare_dashboard_data(dashboard_year="2024")
+    assert isinstance(dff, pl.DataFrame)
+    assert dff.height == 0
+
+
+def test_acheteur_id_partial_match():
+    from src.utils.data import prepare_dashboard_data
+
+    dff = prepare_dashboard_data(
+        dashboard_year="2025",
+        dashboard_acheteur_id="12",
+    )
+    assert dff.height == 1
+
+
+def test_departement_in_clause():
+    from src.utils.data import prepare_dashboard_data
+
+    dff = prepare_dashboard_data(
+        dashboard_year="2025",
+        dashboard_acheteur_departement_code=["75", "92"],
+    )
+    assert dff.height == 1
+
+
+def test_montant_min_above_value_excludes_row():
+    from src.utils.data import prepare_dashboard_data
+
+    dff = prepare_dashboard_data(
+        dashboard_year="2025",
+        dashboard_montant_min=1000,
+    )
+    assert dff.height == 0