migration for adding submittedTime to the txMeta (#3727)

* test for migration 022

* write migration 022 adding submittedTime to txMetas whove been submitted

app/scripts/migrations/022.js

@@ -0,0 +1,39 @@
+
+const version = 22
+
+/*
+
+This migration adds submittedTime to the txMeta if it is not their
+
+*/
+
+const clone = require('clone')
+
+module.exports = {
+  version,
+
+  migrate: function (originalVersionedData) {
+    const versionedData = clone(originalVersionedData)
+    versionedData.meta.version = version
+    try {
+      const state = versionedData.data
+      const newState = transformState(state)
+      versionedData.data = newState
+    } catch (err) {
+      console.warn(`MetaMask Migration #${version}` + err.stack)
+    }
+    return Promise.resolve(versionedData)
+  },
+}
+
+function transformState (state) {
+  const newState = state
+  const transactions = newState.TransactionController.transactions
+
+  newState.TransactionController.transactions = transactions.map((txMeta) => {
+    if (txMeta.status !== 'submitted' || txMeta.submittedTime) return txMeta
+    txMeta.submittedTime = (new Date()).getTime()
+    return txMeta
+  })
+  return newState
+}

test/unit/migrations/022-test.js

@@ -0,0 +1,32 @@
+const assert = require('assert')
+const migration22 = require('../../../app/scripts/migrations/022')
+const properTime = (new Date()).getTime()
+const storage = {
+  "meta": {},
+  "data": {
+    "TransactionController": {
+      "transactions": [
+        { "status": "submitted" },
+        { "status": "submitted", "submittedTime": properTime },
+        {"status": "confirmed"},
+      ]
+    },
+  },
+}
+
+describe('storage is migrated successfully where transactions that are submitted have submittedTimes', () => {
+  it('should add submittedTime key on the txMeta if appropriate', (done) => {
+    migration22.migrate(storage)
+    .then((migratedData) => {
+      const [txMeta1, txMeta2, txMeta3] = migratedData.data.TransactionController.transactions
+      assert.equal(migratedData.meta.version, 22)
+      // should have written a submitted time
+      assert(txMeta1.submittedTime)
+      // should not have written a submitted time because it already has one
+      assert.equal(txMeta2.submittedTime, properTime)
+      // should not have written a submitted time
+      assert(!txMeta3.submittedTime)
+      done()
+    }).catch(done)
+  })
+})