From a1b6d9f5977c4403a98b77b512e838c2126eb11e Mon Sep 17 00:00:00 2001
From: Jyoti Puri <jyotipuri@gmail.com>
Date: Tue, 12 Nov 2024 19:17:04 +0530
Subject: [PATCH] Adding e2e for signature decoding

---
 privacy-snapshot.json                         |  1 +
 test/e2e/tests/confirmations/helpers.ts       | 32 +++++++++++++++++++
 .../confirmations/signatures/permit.spec.ts   | 31 ++++++++++++++++++
 3 files changed, 64 insertions(+)

diff --git a/privacy-snapshot.json b/privacy-snapshot.json
index 36249b132bca..5620903a5c73 100644
--- a/privacy-snapshot.json
+++ b/privacy-snapshot.json
@@ -48,6 +48,7 @@
   "price.api.cx.metamask.io",
   "proxy.api.cx.metamask.io",
   "proxy.dev-api.cx.metamask.io",
+  "qtgdj2huxh.execute-api.us-east-2.amazonaws.com",
   "raw.githubusercontent.com",
   "registry.npmjs.org",
   "responsive-rpc.test",
diff --git a/test/e2e/tests/confirmations/helpers.ts b/test/e2e/tests/confirmations/helpers.ts
index 355f664ec61c..e9fabe7ece04 100644
--- a/test/e2e/tests/confirmations/helpers.ts
+++ b/test/e2e/tests/confirmations/helpers.ts
@@ -9,6 +9,9 @@ import { MockedEndpoint, Mockttp } from '../../mock-e2e';
 import { SMART_CONTRACTS } from '../../seeder/smart-contracts';
 import { Driver } from '../../webdriver/driver';
 
+export const DECODING_E2E_API_URL =
+  'https://qtgdj2huxh.execute-api.us-east-2.amazonaws.com/uat/v1';
+
 export async function scrollAndConfirmAndAssertConfirm(driver: Driver) {
   await driver.clickElementSafe('.confirm-scroll-to-bottom__button');
   await driver.clickElement('[data-testid="confirm-footer-button"]');
@@ -101,3 +104,32 @@ export async function mockSignatureRejected(
     ...anonEvents,
   ];
 }
+
+export async function mockPermitDecoding(mockServer: Mockttp) {
+  return [
+    await mockServer
+      .forPost(`${DECODING_E2E_API_URL}/signature`)
+      .thenCallback(() => ({
+        statusCode: 200,
+        json: {
+          stateChanges: [
+            {
+              assetType: 'NATIVE',
+              changeType: 'RECEIVE',
+              address: '',
+              amount: '900000000000000000',
+              contractAddress: '',
+            },
+            {
+              assetType: 'ERC721',
+              changeType: 'LISTING',
+              address: '',
+              amount: '',
+              contractAddress: '0xafd4896984CA60d2feF66136e57f958dCe9482d5',
+              tokenID: '2101',
+            },
+          ],
+        },
+      })),
+  ];
+}
diff --git a/test/e2e/tests/confirmations/signatures/permit.spec.ts b/test/e2e/tests/confirmations/signatures/permit.spec.ts
index bc74b9fd2f5f..4bd1e3bc6e89 100644
--- a/test/e2e/tests/confirmations/signatures/permit.spec.ts
+++ b/test/e2e/tests/confirmations/signatures/permit.spec.ts
@@ -11,6 +11,8 @@ import {
 import { Ganache } from '../../../seeder/ganache';
 import { Driver } from '../../../webdriver/driver';
 import {
+  DECODING_E2E_API_URL,
+  mockPermitDecoding,
   mockSignatureApproved,
   mockSignatureRejected,
   scrollAndConfirmAndAssertConfirm,
@@ -111,6 +113,35 @@ describe('Confirmation Signature - Permit @no-mmi', function (this: Suite) {
       mockSignatureRejected,
     );
   });
+
+  it('display decoding information if available', async function () {
+    await withRedesignConfirmationFixtures(
+      this.test?.fullTitle(),
+      TransactionEnvelopeType.legacy,
+      async ({ driver }: TestSuiteArguments) => {
+        process.env.ENABLE_SIGNATURE_DECODING = 'true';
+        process.env.DECODING_API_URL = DECODING_E2E_API_URL;
+        await unlockWallet(driver);
+        await openDapp(driver);
+        await driver.clickElement('#signPermit');
+        await driver.switchToWindowWithTitle(WINDOW_TITLES.Dialog);
+        const simulationSection = driver.findElement({
+          text: 'Estimated changes',
+        });
+        const receiveChange = driver.findElement({ text: 'You receive' });
+        const listChange = driver.findElement({ text: 'You list' });
+        const listChangeValue = driver.findElement({ text: '#2101' });
+
+        assert.ok(await simulationSection, 'Estimated changes');
+        assert.ok(await receiveChange, 'You receive');
+        assert.ok(await listChange, 'You list');
+        assert.ok(await listChangeValue, '#2101');
+
+        await driver.delay(10000);
+      },
+      mockPermitDecoding,
+    );
+  });
 });
 
 async function assertInfoValues(driver: Driver) {