From 43bebf6d61be47ecab977ea328f580c4588b4804 Mon Sep 17 00:00:00 2001
From: Leonid Logvinov <logvinov.leon@gmail.com>
Date: Tue, 4 Jul 2017 11:06:13 -0700
Subject: Add parameter validation for subscribeAsync

---
 src/contract_wrappers/token_wrapper.ts | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'src/contract_wrappers/token_wrapper.ts')

diff --git a/src/contract_wrappers/token_wrapper.ts b/src/contract_wrappers/token_wrapper.ts
index d3ef5d6cf..1ad1cd9d6 100644
--- a/src/contract_wrappers/token_wrapper.ts
+++ b/src/contract_wrappers/token_wrapper.ts
@@ -205,6 +205,10 @@ export class TokenWrapper extends ContractWrapper {
      */
     public async subscribeAsync(tokenAddress: string, eventName: TokenEvents, subscriptionOpts: SubscriptionOpts,
                                 indexFilterValues: IndexedFilterValues): Promise<ContractEventEmitter> {
+        assert.isETHAddressHex('tokenAddress', tokenAddress);
+        assert.doesBelongToStringEnum('eventName', eventName, TokenEvents);
+        assert.doesConformToSchema('subscriptionOpts', subscriptionOpts, subscriptionOptsSchema);
+        assert.doesConformToSchema('indexFilterValues', indexFilterValues, indexFilterValuesSchema);
         const tokenContract = await this._getTokenContractAsync(tokenAddress);
         let createLogEvent: CreateContractEvent;
         switch (eventName) {
-- 
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