Ajoute le graphique des personnages représentés

tests/test_minifig_characters_plot.py

@@ -0,0 +1,25 @@
+"""Tests du graphique minifigs par personnage."""
+
+import matplotlib
+from pathlib import Path
+
+from lib.plots.minifig_characters import plot_minifigs_per_character
+
+
+matplotlib.use("Agg")
+
+
+def test_plot_minifigs_per_character(tmp_path: Path) -> None:
+    """Génère l'image de comptage par personnage."""
+    counts_path = tmp_path / "counts.csv"
+    destination = tmp_path / "figures" / "step22" / "minifig_characters.png"
+    counts_path.write_text(
+        "known_character,minifig_count\n"
+        "Owen Grady,2\n"
+        "Figurant,1\n"
+    )
+
+    plot_minifigs_per_character(counts_path, destination)
+
+    assert destination.exists()
+    assert destination.stat().st_size > 0