test: cover env to descriptor selection for both paseo and summit

The consumer tests (connection / registry / bulletinAuthContext) only
exercise whichever env is the active DEFAULT_ENV, so with paseo as the
default the summit arms of the descriptor selectors never ran. Add a
direct test for descriptors.ts that asserts both branches explicitly,
independent of ACTIVE_TESTNET_ENV, so summit selection is tested today
and the one-line network switch stays a no-surprise flip.

Author: UtkarshBhardwaj007

src/utils/descriptors.test.ts

@@ -0,0 +1,93 @@
+// Copyright (C) Parity Technologies (UK) Ltd.
+// SPDX-License-Identifier: Apache-2.0
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// Direct coverage of the env → descriptor selectors. The consumer tests
+// (connection / registry / bulletinAuthContext) only exercise whichever env is
+// the active `DEFAULT_ENV`, so when the network switch is on paseo the summit
+// arms here would otherwise never run. These cases assert BOTH branches
+// explicitly, independent of `ACTIVE_TESTNET_ENV`, so the summit selection is
+// genuinely tested today and the one-line switch stays a no-surprise flip.
+
+import { describe, expect, it, vi } from "vitest";
+
+// Identity-tagged stand-ins so the assertions can prove WHICH descriptor object
+// each selector returns without importing the real (heavy) descriptors.
+vi.mock("@parity/product-sdk-descriptors/paseo-asset-hub", () => ({
+    paseo_asset_hub: { genesis: "0xpaseo-asset" },
+}));
+vi.mock("@parity/product-sdk-descriptors/paseo-bulletin", () => ({
+    paseo_bulletin: { genesis: "0xpaseo-bulletin" },
+}));
+vi.mock("@parity/product-sdk-descriptors/paseo-individuality", () => ({
+    paseo_individuality: { genesis: "0xpaseo-people" },
+}));
+vi.mock("@parity/product-sdk-descriptors/summit-asset-hub", () => ({
+    summit_asset_hub: { genesis: "0xsummit-asset" },
+}));
+vi.mock("@parity/product-sdk-descriptors/summit-bulletin", () => ({
+    summit_bulletin: { genesis: "0xsummit-bulletin" },
+}));
+vi.mock("@parity/product-sdk-descriptors/summit-individuality", () => ({
+    summit_individuality: { genesis: "0xsummit-people" },
+}));
+
+import { paseo_asset_hub } from "@parity/product-sdk-descriptors/paseo-asset-hub";
+import { paseo_bulletin } from "@parity/product-sdk-descriptors/paseo-bulletin";
+import { paseo_individuality } from "@parity/product-sdk-descriptors/paseo-individuality";
+import { summit_asset_hub } from "@parity/product-sdk-descriptors/summit-asset-hub";
+import { summit_bulletin } from "@parity/product-sdk-descriptors/summit-bulletin";
+import { summit_individuality } from "@parity/product-sdk-descriptors/summit-individuality";
+import {
+    getAssetHubDescriptor,
+    getBulletinDescriptor,
+    getIndividualityDescriptor,
+} from "./descriptors.js";
+
+describe("getAssetHubDescriptor", () => {
+    it("returns the summit descriptor for summit", () => {
+        expect(getAssetHubDescriptor("summit")).toBe(summit_asset_hub);
+    });
+
+    it("returns the paseo descriptor for paseo-next-v2", () => {
+        expect(getAssetHubDescriptor("paseo-next-v2")).toBe(paseo_asset_hub);
+    });
+
+    it("falls back to paseo for any non-summit env (summit is the only divergent one)", () => {
+        expect(getAssetHubDescriptor("polkadot")).toBe(paseo_asset_hub);
+        expect(getAssetHubDescriptor(undefined)).toBe(paseo_asset_hub);
+    });
+});
+
+describe("getBulletinDescriptor", () => {
+    it("returns the summit descriptor for summit", () => {
+        expect(getBulletinDescriptor("summit")).toBe(summit_bulletin);
+    });
+
+    it("returns the paseo descriptor otherwise", () => {
+        expect(getBulletinDescriptor("paseo-next-v2")).toBe(paseo_bulletin);
+        expect(getBulletinDescriptor(undefined)).toBe(paseo_bulletin);
+    });
+});
+
+describe("getIndividualityDescriptor", () => {
+    it("returns the summit descriptor for summit", () => {
+        expect(getIndividualityDescriptor("summit")).toBe(summit_individuality);
+    });
+
+    it("returns the paseo descriptor otherwise", () => {
+        expect(getIndividualityDescriptor("paseo-next-v2")).toBe(paseo_individuality);
+        expect(getIndividualityDescriptor(undefined)).toBe(paseo_individuality);
+    });
+});