1 files changed, 37 insertions, 3 deletions
diff --git a/packages/contracts/src/utils/web3_wrapper.ts b/packages/contracts/src/utils/web3_wrapper.ts
index 1049ab967..df9bf88c8 100644
--- a/packages/contracts/src/utils/web3_wrapper.ts
+++ b/packages/contracts/src/utils/web3_wrapper.ts
@@ -1,19 +1,53 @@
 import { devConstants, env, EnvVars, web3Factory } from '@0xproject/dev-utils';
 import { prependSubprovider } from '@0xproject/subproviders';
 import { Web3Wrapper } from '@0xproject/web3-wrapper';
-import { Provider } from 'ethereum-types';
 
 import { coverage } from './coverage';
 
-export const txDefaults = {
+enum ProviderType {
+    Ganache = 'ganache',
+    Geth = 'geth',
+}
+
+let testProvider: ProviderType;
+switch (process.env.TEST_PROVIDER) {
+    case undefined:
+        testProvider = ProviderType.Ganache;
+        break;
+    case 'ganache':
+        testProvider = ProviderType.Ganache;
+        break;
+    case 'geth':
+        testProvider = ProviderType.Geth;
+        break;
+    default:
+        throw new Error(`Unknown TEST_PROVIDER: ${process.env.TEST_PROVIDER}`);
+}
+
+const ganacheTxDefaults = {
     from: devConstants.TESTRPC_FIRST_ADDRESS,
     gas: devConstants.GAS_LIMIT,
 };
-const providerConfigs = { shouldUseInProcessGanache: true };
+const gethTxDefaults = {
+    from: devConstants.TESTRPC_FIRST_ADDRESS,
+};
+export const txDefaults = testProvider === ProviderType.Ganache ? ganacheTxDefaults : gethTxDefaults;
+
+const gethConfigs = {
+    shouldUseInProcessGanache: false,
+    rpcUrl: 'http://localhost:8501',
+    shouldUseFakeGasEstimate: false,
+};
+const ganacheConfigs = {
+    shouldUseInProcessGanache: true,
+};
+const providerConfigs = testProvider === ProviderType.Ganache ? ganacheConfigs : gethConfigs;
+
 export const provider = web3Factory.getRpcProvider(providerConfigs);
 const isCoverageEnabled = env.parseBoolean(EnvVars.SolidityCoverage);
 if (isCoverageEnabled) {
     const coverageSubprovider = coverage.getCoverageSubproviderSingleton();
     prependSubprovider(provider, coverageSubprovider);
 }
+
 export const web3Wrapper = new Web3Wrapper(provider);