From c69c6b9082d295cca65d4f9170240ed6b2d2a323 Mon Sep 17 00:00:00 2001
From: Salakar <mike.diarmid@gmail.com>
Date: Sun, 25 Mar 2018 19:24:18 +0100
Subject: [PATCH] [tests][bridge] added device time drift checks

---
 tests-new/bridge/env/node/context.js | 30 ++++++++++++++++++++++++++++
 tests-new/bridge/env/node/vm.js      |  2 --
 tests-new/bridge/env/rn.js           |  4 ++++
 3 files changed, 34 insertions(+), 2 deletions(-)

diff --git a/tests-new/bridge/env/node/context.js b/tests-new/bridge/env/node/context.js
index d096e068..0c81678e 100644
--- a/tests-new/bridge/env/node/context.js
+++ b/tests-new/bridge/env/node/context.js
@@ -3,8 +3,10 @@ global.bridge.context = null;
 
 const consoleContext = require('./console');
 const { createContext } = require('vm');
+const chalk = require('chalk');
 
 let customBridgeProps = [];
+let driftCheckStart = null;
 
 module.exports = {
   /**
@@ -58,6 +60,34 @@ module.exports = {
       console: consoleContext(),
       __bridgeNode: {
         _ready() {
+          if (!driftCheckStart) {
+            driftCheckStart = Date.now();
+            global.bridge.context.__driftCheck(1);
+          } else {
+            setTimeout(() => process.emit('bridge-attached'), 1);
+          }
+        },
+
+        _callbackDriftCheck() {
+          const timeTaken = Date.now() - driftCheckStart;
+          if (timeTaken > 5000) {
+            console.log(
+              `${chalk.blue(
+                '[bridge] ⚠️ '
+              )} It looks like there's an issue with device timer performance...`
+            );
+            console.log(
+              `${chalk.blue(
+                '[bridge] ⚠️ '
+              )} You may experience slow testing times as a result - ensure your device date/time correctly matches your debugger machine.`
+            );
+            // todo android only
+            // fake the RN warning for this
+            global.bridge.context.console.warn(
+              `Debugger and device times have drifted. ` +
+                `Please correct this by running adb shell "date \`date +%m%d%H%M%Y.%S\`" on your debugger machine.`
+            );
+          }
           setTimeout(() => process.emit('bridge-attached'), 1);
         },
 
diff --git a/tests-new/bridge/env/node/vm.js b/tests-new/bridge/env/node/vm.js
index f8de7c81..ac95ea36 100644
--- a/tests-new/bridge/env/node/vm.js
+++ b/tests-new/bridge/env/node/vm.js
@@ -47,13 +47,11 @@ async function downloadBundle(bundleUrl) {
 
 async function getBundle(request) {
   if (bundle) return bundle;
-  console.log('');
   console.log(
     `${chalk.blue(
       '[bridge]'
     )} debugger has connected! Downloading app JS bundle...`
   );
-  console.log('');
 
   const parsedUrl = url.parse(request.url, true);
   invariant(parsedUrl.query);
diff --git a/tests-new/bridge/env/rn.js b/tests-new/bridge/env/rn.js
index 4bd7d9ce..df32549d 100644
--- a/tests-new/bridge/env/rn.js
+++ b/tests-new/bridge/env/rn.js
@@ -36,6 +36,10 @@ if (Platform.OS === 'ios' && !bridgeNode) {
   }
 }
 
+global.__driftCheck = delay => {
+  setTimeout(bridgeNode._callbackDriftCheck, delay);
+};
+
 let hasInitialized = false;
 
 export default {