Merge pull request #589 from 0xProject/feature/truffle-sol-cov

Sol-cov artifact Adapters (truffle)

1 files changed, 7 insertions, 5 deletions

diff --git a/packages/metacoin/test/utils/web3_wrapper.ts b/packages/metacoin/test/utils/web3_wrapper.ts
index b4bb61f09..724ed4e1f 100644
--- a/packages/metacoin/test/utils/web3_wrapper.ts
+++ b/packages/metacoin/test/utils/web3_wrapper.ts
@@ -1,5 +1,5 @@
 import { env, EnvVars } from '@0xproject/dev-utils';
-import { GanacheSubprovider } from '@0xproject/subproviders';
+import { GanacheSubprovider, prependSubprovider } from '@0xproject/subproviders';
 import { Web3Wrapper } from '@0xproject/web3-wrapper';
 import * as fs from 'fs';
 import * as _ from 'lodash';
@@ -9,10 +9,6 @@ import { config } from './config';
 import { coverage } from './coverage';
 
 export const provider = new ProviderEngine();
-const isCoverageEnabled = env.parseBoolean(EnvVars.SolidityCoverage);
-if (isCoverageEnabled) {
-    provider.addProvider(coverage.getCoverageSubproviderSingleton());
-}
 provider.addProvider(
     new GanacheSubprovider({
         logger: {
@@ -27,4 +23,10 @@ provider.addProvider(
 );
 provider.start();
 
+const isCoverageEnabled = env.parseBoolean(EnvVars.SolidityCoverage);
+if (isCoverageEnabled) {
+    const coverageSubprovider = coverage.getCoverageSubproviderSingleton();
+    prependSubprovider(provider, coverageSubprovider);
+}
+
 export const web3Wrapper = new Web3Wrapper(provider);