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Enforce tx history limit

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This commit is contained in:
Dan Finlay 2016-08-18 15:40:56 -07:00
parent 90d6bec3ed
commit 7389f9d0a0
2 changed files with 17 additions and 0 deletions
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6
app/scripts/lib/config-manager.js
View File

@ -5,6 +5,7 @@ const rp = require('request-promise')
const TESTNET_RPC = MetamaskConfig.network.testnet
const MAINNET_RPC = MetamaskConfig.network.mainnet
const txLimit = 40
/* The config-manager is a convenience object
* wrapping a pojo-migrator.
@ -15,6 +16,8 @@ const MAINNET_RPC = MetamaskConfig.network.mainnet
*/
module.exports = ConfigManager
function ConfigManager (opts) {
this.txLimit = txLimit
// ConfigManager is observable and will emit updates
this._subs = []
@ -181,6 +184,9 @@ ConfigManager.prototype._saveTxList = function (txList) {
ConfigManager.prototype.addTx = function (tx) {
var transactions = this.getTxList()
while (transactions.length > this.txLimit - 1) {
transactions.shift()
}
transactions.push(tx)
this._saveTxList(transactions)
}

11
test/unit/config-manager-test.js
View File

@ -233,6 +233,17 @@ describe('config-manager', function() {
assert.equal(result.length, 1)
assert.equal(result[0].id, 1)
})
it('cuts off early txs beyond a limit', function() {
const limit = configManager.txLimit
for (let i = 0; i < limit + 1; i++) {
let tx = { id: i }
configManager.addTx(tx)
}
var result = configManager.getTxList()
assert.equal(result.length, limit, `limit of ${limit} txs enforced`)
assert.equal(result[0].id, 1, 'early txs truncted')
})
})
describe('#confirmTx', function() {