const assert = require('assert') const clone = require('clone') const txStateHistoryHelper = require('../../app/scripts/controllers/transactions/lib/tx-state-history-helper') describe('deepCloneFromTxMeta', function () { it('should clone deep', function () { const input = { foo: { bar: { bam: 'baz' } } } const output = txStateHistoryHelper.snapshotFromTxMeta(input) assert('foo' in output, 'has a foo key') assert('bar' in output.foo, 'has a bar key') assert('bam' in output.foo.bar, 'has a bar key') assert.equal(output.foo.bar.bam, 'baz', 'has a baz value') }) it('should remove the history key', function () { const input = { foo: 'bar', history: 'remembered' } const output = txStateHistoryHelper.snapshotFromTxMeta(input) assert(typeof output.history, 'undefined', 'should remove history') }) })