1 files changed, 40 insertions, 0 deletions
diff --git a/test/lib/mock-tx-gen.js b/test/lib/mock-tx-gen.js
new file mode 100644
index 000000000..7aea09c59
--- /dev/null
+++ b/test/lib/mock-tx-gen.js
@@ -0,0 +1,40 @@
+const extend = require('xtend')
+const BN = require('ethereumjs-util').BN
+const template = {
+  'status': 'submitted',
+  'txParams': {
+    'from': '0x7d3517b0d011698406d6e0aed8453f0be2697926',
+    'gas': '0x30d40',
+    'value': '0x0',
+    'nonce': '0x3',
+  },
+}
+
+class TxGenerator {
+
+  constructor () {
+    this.txs = []
+  }
+
+  generate (tx = {}, opts = {}) {
+    let { count, fromNonce } = opts
+    let nonce = fromNonce || this.txs.length
+    let txs = []
+    for (let i = 0; i < count; i++) {
+      txs.push(extend(template, {
+        txParams: {
+          nonce: hexify(nonce++),
+        }
+      }, tx))
+    }
+    this.txs = this.txs.concat(txs)
+    return txs
+  }
+
+}
+
+function hexify (number) {
+  return '0x' + (new BN(number)).toString(16)
+}
+
+module.exports = TxGenerator