1 files changed, 29 insertions, 0 deletions
diff --git a/internal/item/house_edge_test.go b/internal/item/house_edge_test.go
new file mode 100644
index 0000000..574a68f
--- /dev/null
+++ b/internal/item/house_edge_test.go
@@ -0,0 +1,29 @@
+package item
+
+import "testing"
+
+// TestHouseEdgeItemDefinitions pins the two house-edge reference items: the
+// tile shows whole percent, the computus shows hundredths. Neither stacks
+// (the precision is a capability, not a quantity) and both are valuable
+// enough that a player will bank them rather than drop them.
+func TestHouseEdgeItemDefinitions(t *testing.T) {
+	store := NewItemStore("../../data")
+	for _, tc := range []struct {
+		id        string
+		precision int
+	}{
+		{"house_edge_tile", 0},
+		{"house_edge_computus", 2},
+	} {
+		def, err := store.Load(tc.id)
+		if err != nil {
+			t.Fatalf("load %s: %v", tc.id, err)
+		}
+		if def.HouseEdgePrecision == nil || *def.HouseEdgePrecision != tc.precision {
+			t.Fatalf("%s: house_edge_precision = %v, want %d", tc.id, def.HouseEdgePrecision, tc.precision)
+		}
+		if def.Stackable {
+			t.Fatalf("%s must not stack (its precision is a capability, not a quantity)", tc.id)
+		}
+	}
+}