3 files changed, 9 insertions, 18 deletions
diff --git a/packages/sol-cov/src/collect_contract_data.ts b/packages/sol-cov/src/collect_contract_data.ts
index bb20e98be..2c2a12835 100644
--- a/packages/sol-cov/src/collect_contract_data.ts
+++ b/packages/sol-cov/src/collect_contract_data.ts
@@ -5,7 +5,7 @@ import * as path from 'path';
 
 import { ContractData } from './types';
 
-export const collectContractsData = (artifactsPath: string, sourcesPath: string, networkId: number) => {
+export const collectContractsData = (artifactsPath: string, sourcesPath: string) => {
     const artifactsGlob = `${artifactsPath}/**/*.json`;
     const artifactFileNames = glob.sync(artifactsGlob, { absolute: true });
     const contractsData: ContractData[] = [];
diff --git a/packages/sol-cov/src/coverage_manager.ts b/packages/sol-cov/src/coverage_manager.ts
index 6a57d07c9..f50f010b9 100644
--- a/packages/sol-cov/src/coverage_manager.ts
+++ b/packages/sol-cov/src/coverage_manager.ts
@@ -1,3 +1,4 @@
+import { addHexPrefix } from 'ethereumjs-util';
 import * as fs from 'fs';
 import { Collector } from 'istanbul';
 import * as _ from 'lodash';
@@ -36,21 +37,18 @@ export class CoverageManager {
     constructor(
         artifactsPath: string,
         sourcesPath: string,
-        networkId: number,
         getContractCodeAsync: (address: string) => Promise<string>,
     ) {
         this._getContractCodeAsync = getContractCodeAsync;
         this._sourcesPath = sourcesPath;
-        this._contractsData = collectContractsData(artifactsPath, this._sourcesPath, networkId);
+        this._contractsData = collectContractsData(artifactsPath, this._sourcesPath);
     }
     public appendTraceInfo(traceInfo: TraceInfo): void {
         this._traceInfos.push(traceInfo);
     }
     public async writeCoverageAsync(): Promise<void> {
         const finalCoverage = await this._computeCoverageAsync();
-        const jsonReplacer: null = null;
-        const numberOfJsonSpaces = 4;
-        const stringifiedCoverage = JSON.stringify(finalCoverage, jsonReplacer, numberOfJsonSpaces);
+        const stringifiedCoverage = JSON.stringify(finalCoverage, null, '\t');
         fs.writeFileSync('coverage/coverage.json', stringifiedCoverage);
     }
     private _getSingleFileCoverageForTrace(
@@ -134,7 +132,7 @@ export class CoverageManager {
             if (traceInfo.address !== constants.NEW_CONTRACT) {
                 // Runtime transaction
                 let runtimeBytecode = (traceInfo as TraceInfoExistingContract).runtimeBytecode;
-                runtimeBytecode = utils.removeHexPrefix(runtimeBytecode);
+                runtimeBytecode = addHexPrefix(runtimeBytecode);
                 const contractData = _.find(this._contractsData, { runtimeBytecode }) as ContractData;
                 if (_.isUndefined(contractData)) {
                     throw new Error(`Transaction to an unknown address: ${traceInfo.address}`);
@@ -159,7 +157,7 @@ export class CoverageManager {
             } else {
                 // Contract creation transaction
                 let bytecode = (traceInfo as TraceInfoNewContract).bytecode;
-                bytecode = utils.removeHexPrefix(bytecode);
+                bytecode = addHexPrefix(bytecode);
                 const contractData = _.find(this._contractsData, contractDataCandidate =>
                     bytecode.startsWith(contractDataCandidate.bytecode),
                 ) as ContractData;
@@ -185,7 +183,6 @@ export class CoverageManager {
                 }
             }
         }
-        // TODO: Remove any cast as soon as https://github.com/DefinitelyTyped/DefinitelyTyped/pull/24233 gets merged
-        return (collector as any).getFinalCoverage();
+        return collector.getFinalCoverage();
     }
 }
diff --git a/packages/sol-cov/src/coverage_subprovider.ts b/packages/sol-cov/src/coverage_subprovider.ts
index 6504d5a46..b08291afb 100644
--- a/packages/sol-cov/src/coverage_subprovider.ts
+++ b/packages/sol-cov/src/coverage_subprovider.ts
@@ -28,19 +28,13 @@ export class CoverageSubprovider extends Subprovider {
      * Instantiates a CoverageSubprovider instance
      * @param artifactsPath Path to the smart contract artifacts
      * @param sourcesPath Path to the smart contract source files
-     * @param networkId network id
      * @param defaultFromAddress default from address to use when sending transactions
      */
-    constructor(artifactsPath: string, sourcesPath: string, networkId: number, defaultFromAddress: string) {
+    constructor(artifactsPath: string, sourcesPath: string, defaultFromAddress: string) {
         super();
         this._lock = new Lock();
         this._defaultFromAddress = defaultFromAddress;
-        this._coverageManager = new CoverageManager(
-            artifactsPath,
-            sourcesPath,
-            networkId,
-            this._getContractCodeAsync.bind(this),
-        );
+        this._coverageManager = new CoverageManager(artifactsPath, sourcesPath, this._getContractCodeAsync.bind(this));
     }
     /**
      * Write the test coverage results to a file in Istanbul format.