diff --git a/packages/dev-utils/src/env.ts b/packages/dev-utils/src/env.ts
new file mode 100644
index 0000000000..7e46a5f89e
--- /dev/null
+++ b/packages/dev-utils/src/env.ts
@@ -0,0 +1,19 @@
+import * as _ from 'lodash';
+import * as process from 'process';
+
+export const env = {
+    parseBoolean(key: string): boolean {
+        let isTrue: boolean;
+        const envVarvalue = process.env[key];
+        if (process.env.SOLIDITY_COVERAGE === 'true') {
+            isTrue = true;
+        } else if (process.env.SOLIDITY_COVERAGE === 'false' || _.isUndefined(process.env.SOLIDITY_COVERAGE)) {
+            isTrue = false;
+        } else {
+            throw new Error(
+                `Failed to parse ENV variable ${key} as boolean. Please make sure it's either true or false. Defaults to false`,
+            );
+        }
+        return isTrue;
+    },
+};
diff --git a/packages/sol-cov/src/instrument_solidity.ts b/packages/sol-cov/src/collect_coverage_entries.ts
similarity index 97%
rename from packages/sol-cov/src/instrument_solidity.ts
rename to packages/sol-cov/src/collect_coverage_entries.ts
index 163e3c7b96..d29fa2c374 100644
--- a/packages/sol-cov/src/instrument_solidity.ts
+++ b/packages/sol-cov/src/collect_coverage_entries.ts
@@ -11,7 +11,6 @@ import { getLocationByOffset } from './source_maps';
 const coverageEntriesBySourceHash: { [sourceHash: string]: CoverageEntriesDescription } = {};
 
 export const collectCoverageEntries = (contractSource: string, fileName: string) => {
-    const time = Date.now();
     const sourceHash = ethUtil.sha3(contractSource).toString('hex');
     if (_.isUndefined(coverageEntriesBySourceHash[sourceHash])) {
         const ast = SolidityParser.parse(contractSource);
diff --git a/packages/sol-cov/src/coverage_manager.ts b/packages/sol-cov/src/coverage_manager.ts
index 870dc2bdb4..4ca6b0ec8d 100644
--- a/packages/sol-cov/src/coverage_manager.ts
+++ b/packages/sol-cov/src/coverage_manager.ts
@@ -4,8 +4,8 @@ import * as _ from 'lodash';
 import * as path from 'path';
 
 import { collectContractsData } from './collect_contract_data';
+import { collectCoverageEntries } from './collect_coverage_entries';
 import { constants } from './constants';
-import { collectCoverageEntries } from './instrument_solidity';
 import { parseSourceMap } from './source_maps';
 import {
     BranchCoverage,