test: Add comprehensive tests for hasSponsoredTransactionsEnabled function

Author: gregfromstl

.changeset/lazy-games-cheat.md

@@ -0,0 +1,5 @@
+---
+"thirdweb": patch
+---
+
+Fix ecosystem wallet AA detection in Pay modal

packages/thirdweb/src/react/core/utils/wallet.test.ts

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+import { describe, expect, it } from "vitest";
+import type { Wallet } from "../../../wallets/interfaces/wallet";
+import { hasSponsoredTransactionsEnabled } from "./wallet";
+
+describe("hasSponsoredTransactionsEnabled", () => {
+  it("should return false for undefined wallet", () => {
+    expect(hasSponsoredTransactionsEnabled(undefined)).toBe(false);
+  });
+
+  it("should handle smart wallet with sponsorGas config", () => {
+    const mockSmartWallet = {
+      id: "smart",
+      getConfig: () => ({ sponsorGas: true }),
+    } as Wallet;
+    expect(hasSponsoredTransactionsEnabled(mockSmartWallet)).toBe(true);
+
+    const mockSmartWalletDisabled = {
+      id: "smart",
+      getConfig: () => ({ sponsorGas: false }),
+    } as Wallet;
+    expect(hasSponsoredTransactionsEnabled(mockSmartWalletDisabled)).toBe(
+      false,
+    );
+  });
+
+  it("should handle smart wallet with gasless config", () => {
+    const mockSmartWallet = {
+      id: "smart",
+      getConfig: () => ({ gasless: true }),
+    } as Wallet;
+    expect(hasSponsoredTransactionsEnabled(mockSmartWallet)).toBe(true);
+  });
+
+  it("should handle inApp wallet with smartAccount config", () => {
+    const mockInAppWallet = {
+      id: "inApp",
+      getConfig: () => ({
+        smartAccount: {
+          sponsorGas: true,
+        },
+      }),
+    } as Wallet;
+    expect(hasSponsoredTransactionsEnabled(mockInAppWallet)).toBe(true);
+
+    const mockInAppWalletDisabled = {
+      id: "inApp",
+      getConfig: () => ({
+        smartAccount: {
+          sponsorGas: false,
+        },
+      }),
+    } as Wallet;
+    expect(hasSponsoredTransactionsEnabled(mockInAppWalletDisabled)).toBe(
+      false,
+    );
+  });
+
+  it("should handle inApp wallet with gasless config", () => {
+    const mockInAppWallet = {
+      id: "inApp",
+      getConfig: () => ({
+        smartAccount: {
+          gasless: true,
+        },
+      }),
+    } as Wallet;
+    expect(hasSponsoredTransactionsEnabled(mockInAppWallet)).toBe(true);
+  });
+
+  it("should return false for regular wallet without smart account config", () => {
+    const mockRegularWallet = {
+      id: "inApp",
+      getConfig: () => ({}),
+    } as Wallet;
+    expect(hasSponsoredTransactionsEnabled(mockRegularWallet)).toBe(false);
+  });
+});