Finally fixed the eosiod_tests issue

libraries/chain/include/eosio/chain/apply_context.hpp

@@ -753,11 +753,11 @@ using apply_handler = std::function<void(apply_context&)>;
       auto tuple = boost::make_tuple( next_tid );
       auto itr = idx.lower_bound(tuple);
 
-      if( std::distance(idx.begin(), itr) == 0 ) return 0;
+      if( std::distance(idx.begin(), itr) == 0 ) return -1;
 
       --itr;
 
-      if( itr->t_id != t_id.id ) return 0;
+      if( itr->t_id != t_id.id ) return -1;
 
       impl::key_helper<typename IndexType::value_type>::get(keys, *itr);
 

libraries/chain/include/eosio/chain/types.hpp

@@ -153,11 +153,12 @@ namespace eosio { namespace chain {
    class producer_object;
 
    using block_id_type       = fc::sha256;
+   using checksum_type       = fc::sha256;
    using checksum256_type    = fc::sha256;
    using checksum512_type    = fc::sha512;
    using checksum160_type    = fc::ripemd160;
-   using transaction_id_type = checksum256_type;
-   using digest_type         = checksum256_type;
+   using transaction_id_type = checksum_type;
+   using digest_type         = checksum_type;
    using weight_type         = uint16_t;
    using block_num_type      = uint32_t;
    using share_type          = int64_t;

libraries/chain/wasm_interface.cpp

@@ -36,39 +36,6 @@ using namespace IR;
 using namespace Runtime;
 using boost::asio::io_service;
 
-#if 0
-   // account.h/hpp expected account API balance interchange format
-   // must match account.hpp account_balance definition
-   PACKED_STRUCT(
-   struct account_balance
-   {
-      /**
-      * Name of the account who's balance this is
-      */
-      eosio::chain::account_name account;
-
-      /**
-      * Balance for this account
-      */
-      eosio::chain::asset eos_balance;
-
-      /**
-      * Staked balance for this account
-      */
-      eosio::chain::asset staked_balance;
-
-      /**
-      * Unstaking balance for this account
-      */
-      eosio::chain::asset unstaking_balance;
-
-      /**
-      * Time at which last unstaking occurred for this account
-      */
-      eosio::chain::time last_unstaking_time;
-   })
-#endif
-
 namespace eosio { namespace chain {
    using namespace contracts;
 
@@ -927,7 +894,7 @@ class db_index_api : public context_aware_api {
    int call(ContextMethodType method, const account_name& code, const scope_name& scope, const name& table, array_ptr<char> data, size_t data_len) {
       auto maybe_t_id = context.find_table(code, scope, table);
       if (maybe_t_id == nullptr) {
-         return 0;
+         return -1;
       }
 
       const auto& t_id = *maybe_t_id;
@@ -938,7 +905,7 @@ class db_index_api : public context_aware_api {
       size_t record_len = data_len - sizeof(KeyArrayType);
 
       auto res = (context.*(method))(t_id, keys, record_data, record_len);
-      if (res != 0) {
+      if (res != -1) {
          res += sizeof(KeyArrayType);
       }
       return res;