Fix for trufflesuite/ganache-cli#354

lib/subproviders/geth_api_double.js

@@ -469,7 +469,9 @@ GethApiDouble.prototype.evm_increaseTime = function(seconds, callback) {
 };
 
 GethApiDouble.prototype.evm_mine = function(callback) {
- this.state.processBlocks(1, callback);
+ this.state.processBlocks(1, function(err) {
+ callback(err, '0x0');
+ });
 };
 
 GethApiDouble.prototype.debug_traceTransaction = function(tx_hash, params, callback) {

package.json

@@ -1,6 +1,6 @@
 {
  "name": "ganache-core",
- "version": "3.0.0-beta.0",
+ "version": "2.1.0-beta.0",
  "main": "./index.js",
  "directories": {
  "lib": "./lib"

test/mining.js

@@ -110,9 +110,10 @@ describe("Mining", function() {
  jsonrpc: "2.0",
  method: "evm_mine",
  id: new Date().getTime()
- }, function(err) {
+ }, function(err, result) {
  if (err) return reject(err);
- accept();
+ assert.deepEqual(result.result, "0x0");
+ accept(result);
  })
  });
  }