fix perp

2026-09-11 09:18:08 +00:00 · 2025-12-08 23:55:13 +08:00
parent a23eb91f04
commit 49b8f0bcf1
2 changed files with 46 additions and 1 deletions
@@ -0,0 +1,40 @@
+import { describe, expect, it } from "vitest";
+import type { LighterOrderBookMetadata } from "../../src/exchanges/lighter/types";
+import { LighterGateway } from "../../src/exchanges/lighter/gateway";
+
+const pickBestOrderBook = (books: LighterOrderBookMetadata[], desiredSymbol: string) =>
+  (LighterGateway.prototype as any).pickBestOrderBook.call({}, books, desiredSymbol);
+
+describe("pickBestOrderBook", () => {
+  const spotBook = {
+    market_id: 2048,
+    symbol: "ETH/USDC",
+    market_type: "spot",
+    supported_price_decimals: 2,
+    supported_size_decimals: 4,
+    min_base_amount: "0.0001",
+    min_quote_amount: "5",
+  } as LighterOrderBookMetadata;
+
+  const perpBook = {
+    market_id: 3048,
+    symbol: "ETH-PERP",
+    market_type: "perp",
+    supported_price_decimals: 2,
+    supported_size_decimals: 3,
+    min_base_amount: "0.001",
+    min_quote_amount: "5",
+  } as LighterOrderBookMetadata;
+
+  it("prefers perp when desired symbol does not explicitly request spot", () => {
+    const picked = pickBestOrderBook([spotBook, perpBook], "ETH");
+    expect(picked?.market_type).toBe("perp");
+    expect(picked?.market_id).toBe(3048);
+  });
+
+  it("still prefers spot when symbol clearly indicates spot", () => {
+    const picked = pickBestOrderBook([spotBook, perpBook], "ETH/USDC");
+    expect(picked?.market_type).toBe("spot");
+    expect(picked?.market_id).toBe(2048);
+  });
+});