test: add test of DOM storage quota override

electron · Nov 6, 2018 · a9938de · a9938de
1 parent 1cb8343
commit a9938de
Showing 1 changed file with 17 additions and 0 deletions.
diff --git a/spec/chromium-spec.js b/spec/chromium-spec.js
@@ -937,6 +937,23 @@ describe('chromium feature', () => {
   })
 
   describe('storage', () => {
+    describe('DOM storage quota override', () => {
+      ['localStorage', 'sessionStorage'].forEach((storageName) => {
+        it(`can store at least 50MiB in ${storageName}`, (done) => {
+          assert.doesNotThrow(() => {
+            const storage = window[storageName]
+            const testKeyName = '_electronDOMStorageQuotaOverrideTest'
+            // 25 * 2^20 UTF-16 characters will require 50MiB
+            const arraySize = 25 * Math.pow(2, 20)
+            storage[testKeyName] = new Array(arraySize).fill('X').join('')
+            assert.strictEqual(storage[testKeyName].length, arraySize)
+            delete storage[testKeyName]
+            done()
+          })
+        })
+      })
+    })
+
     it('requesting persitent quota works', (done) => {
       navigator.webkitPersistentStorage.requestQuota(1024 * 1024, (grantedBytes) => {
         assert.strictEqual(grantedBytes, 1048576)