From e238cbc568c2ab3461f2596ae2cf9e0a78274679 Mon Sep 17 00:00:00 2001
From: Niranjana Binoy <43930900+NiranjanaBinoy@users.noreply.github.com>
Date: Wed, 29 Sep 2021 14:53:56 -0400
Subject: [PATCH] Turning OFF token detection for test nets (#12232)

---
 app/scripts/controllers/detect-tokens.js      | 9 ++++++++-
 app/scripts/controllers/detect-tokens.test.js | 1 +
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/app/scripts/controllers/detect-tokens.js b/app/scripts/controllers/detect-tokens.js
index 246114657..ea647b59f 100644
--- a/app/scripts/controllers/detect-tokens.js
+++ b/app/scripts/controllers/detect-tokens.js
@@ -4,6 +4,7 @@ import SINGLE_CALL_BALANCES_ABI from 'single-call-balance-checker-abi';
 import { SINGLE_CALL_BALANCES_ADDRESS } from '../constants/contracts';
 import { MINUTE } from '../../../shared/constants/time';
 import { isEqualCaseInsensitive } from '../../../ui/helpers/utils/util';
+import { MAINNET_CHAIN_ID } from '../../../shared/constants/network';
 
 // By default, poll every 3 minutes
 const DEFAULT_INTERVAL = MINUTE * 3;
@@ -79,7 +80,13 @@ export default class DetectTokensController {
     }
 
     const { tokenList } = this._tokenList.state;
-    if (Object.keys(tokenList).length === 0) {
+    // since the token detection is currently enabled only on Mainnet
+    // we can use the chainId check to ensure token detection is not triggered for any other network
+    // but once the balance check contract for other networks are deploayed and ready to use, we need to update this check.
+    if (
+      this._network.store.getState().provider.chainId !== MAINNET_CHAIN_ID ||
+      Object.keys(tokenList).length === 0
+    ) {
       return;
     }
 
diff --git a/app/scripts/controllers/detect-tokens.test.js b/app/scripts/controllers/detect-tokens.test.js
index 4a739aff1..4fd5605b0 100644
--- a/app/scripts/controllers/detect-tokens.test.js
+++ b/app/scripts/controllers/detect-tokens.test.js
@@ -42,6 +42,7 @@ describe('DetectTokensController', function () {
       '0x7e57e2',
       '0xbc86727e770de68b1060c91f6bb6945c73e10388',
     ]);
+    preferences.setUseTokenDetection(true);
     sandbox
       .stub(network, 'getLatestBlock')
       .callsFake(() => Promise.resolve({}));