Unit-Stärken präzisiert: Stat-Proxy-Multiplikatoren + gelernte Unit-Gewichte

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

backend/tests/test_learn.py

@@ -50,3 +50,15 @@ def test_empty_rows():
     assert learned["traits"] == {}
     assert learned["pairs"] == {}
     assert learned["n_boards"] == 0
+
+
+def test_unit_multipliers_learned():
+    def row(placement, unit):
+        units = [{"character_id": unit, "tier": 2, "itemNames": []}]
+        return (placement, json.dumps(units), json.dumps([]), json.dumps([]))
+
+    rows = [row(1, "TFT17_Strong") for _ in range(150)]
+    rows += [row(8, "TFT17_Weak") for _ in range(150)]
+    learned = learn(rows)
+    assert learned["units"]["TFT17_Strong"] > 1.05
+    assert learned["units"]["TFT17_Weak"] < 0.95

backend/tests/test_score.py

@@ -86,3 +86,33 @@ def test_craftable_item_pool():
         "TFT_Item_Radiant": {"composition": None},
     }
     assert craftable_items(items) == ["TFT_Item_InfinityEdge"]
+
+
+def test_stat_mults_rank_within_cost():
+    from tft.model.baseline import compute_stat_mults
+
+    def unit(hp, armor, ad, aspd):
+        return {"cost": 2, "traits": [], "role": "Tank",
+                "stats": {"hp": hp, "armor": armor, "magicResist": armor,
+                          "damage": ad, "attackSpeed": aspd, "mana": 60,
+                          "initialMana": 0, "range": 1}}
+
+    units = {"tanky": unit(900, 60, 45, 0.6), "avg": unit(700, 40, 55, 0.7),
+             "weak": unit(550, 25, 45, 0.6)}
+    mults = compute_stat_mults(units)
+    assert mults["tanky"] > mults["avg"] > mults["weak"]
+    assert all(0.9 <= m <= 1.1 for m in mults.values())
+
+
+def test_stat_mults_identical_units_are_neutral():
+    from tft.model.baseline import compute_stat_mults
+    from tests.test_sim import make_static
+
+    mults = compute_stat_mults(make_static()["units"])
+    assert all(m == 1.0 for m in mults.values())
+
+
+def test_stat_mult_raises_score():
+    art = {**ARTIFACT, "stat_mults": {"TFT17_B": 1.1}}
+    board = [{"api_name": "TFT17_B", "stars": 1, "items": []}]
+    assert score_board(board, [], art) > score_board(board, [], ARTIFACT)