feat: configurable dummy price

packages/pricing/src/providers/dummy.provider.ts

@@ -7,7 +7,10 @@ import { IPricingProvider, PriceResponse } from "../internal.js";
  * This provider returns a fixed price of 1 for each token address.
  */
 export class DummyPricingProvider implements IPricingProvider {
+    constructor(private readonly dummyPrice: number | undefined = undefined) {}
     async getTokenPrices(addresses: Address[]): Promise<PriceResponse> {
-        return Promise.resolve(Object.fromEntries(addresses.map((address) => [address, 1])));
+        return Promise.resolve(
+            Object.fromEntries(addresses.map((address) => [address, this.dummyPrice])),
+        );
     }
 }

packages/pricing/test/unit/services/dummy.provider.spec.ts

@@ -1,21 +1,32 @@
-import { beforeEach, describe, expect, it } from "vitest";
+import { describe, expect, it } from "vitest";
 
 import { Address } from "@zkchainhub/shared";
 
 import { DummyPricingProvider } from "../../../src/providers/dummy.provider.js";
 
 describe("DummyPricingProvider", () => {
-    let provider: DummyPricingProvider;
+    it("return undefined for all token prices", async () => {
+        const provider = new DummyPricingProvider();
 
-    beforeEach(() => {
-        provider = new DummyPricingProvider();
+        const addresses: Address[] = ["0x123456789", "0xabcdef123"];
+        const expectedResponse = {
+            "0x123456789": undefined,
+            "0xabcdef123": undefined,
+        };
+
+        const response = await provider.getTokenPrices(addresses);
+
+        expect(response).toEqual(expectedResponse);
     });
 
-    it("return 1 for all token prices", async () => {
+    it("return number for all token prices", async () => {
+        const price = 1;
+        const provider = new DummyPricingProvider(price);
+
         const addresses: Address[] = ["0x123456789", "0xabcdef123"];
         const expectedResponse = {
-            "0x123456789": 1,
-            "0xabcdef123": 1,
+            "0x123456789": price,
+            "0xabcdef123": price,
         };
 
         const response = await provider.getTokenPrices(addresses);