Sync integration test on leasing more than you have was added

it/src/test/scala/com/wavesplatform/it/sync/LeaseTransactionSuite.scala

@@ -0,0 +1,17 @@
+package com.wavesplatform.it.sync
+
+import com.wavesplatform.it.api.SyncHttpApi._
+import com.wavesplatform.it.transactions.BaseTransactionSuite
+import com.wavesplatform.it.util._
+
+class LeaseTransactionSuite extends BaseTransactionSuite {
+
+  private val defaultQuantity = 100000
+  private val decimals: Byte = 2
+  private val defaultFee = 1.waves
+
+  test("can't lease more than you have") {
+    val (balance, _) = notMiner.accountBalances(firstAddress)
+    assertBadRequest2(sender.lease(firstAddress, secondAddress, balance - defaultFee + 1, defaultFee))
+  }
+}