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node_modules/puppeteer-extra-plugin-stealth/evasions/chrome.csi/index.test.js

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+const test = require('ava')
+
+const { vanillaPuppeteer, addExtra } = require('../../test/util')
+
+const Plugin = require('.')
+
+/* global chrome */
+
+test('stealth: will add functional chrome.csi function mock', async t => {
+  const puppeteer = addExtra(vanillaPuppeteer).use(
+    Plugin({
+      runOnInsecureOrigins: true // for testing
+    })
+  )
+  const browser = await puppeteer.launch({ headless: true })
+  const page = await browser.newPage()
+
+  const results = await page.evaluate(() => {
+    const { timing } = window.performance
+    const csi = window.chrome.csi()
+
+    return {
+      csi: {
+        exists: window.chrome && 'csi' in window.chrome,
+        toString: chrome.csi.toString()
+      },
+      dataOK: {
+        onloadT: csi.onloadT === timing.domContentLoadedEventEnd,
+        startE: csi.startE === timing.navigationStart,
+        pageT: Number.isInteger(csi.pageT),
+        tran: Number.isInteger(csi.tran)
+      }
+    }
+  })
+
+  t.deepEqual(results, {
+    csi: {
+      exists: true,
+      toString: 'function () { [native code] }'
+    },
+    dataOK: {
+      onloadT: true,
+      pageT: true,
+      startE: true,
+      tran: true
+    }
+  })
+})