[duration] Replace performance with less resolution Date

package.json

@@ -23,9 +23,6 @@
 	"bugs": {
 		"url": "https://github.com/klenty/gunner/issues"
 	},
-	"browser": {
-		"perf_utils": "src/util/perf_hooks.js"
-	},
 	"homepage": "https://github.com/klenty/gunner#readme",
 	"dependencies": {
 		"@codefeathers/iseq": "^1.2.1",

sample/sample7.test.js

@@ -99,4 +99,4 @@ gunner.test('(should fail) should not resolve to 5', () =>
 const trace = process.argv.slice(2).indexOf('--trace') !== -1;
 const reporter = process.argv.slice(2).indexOf('--log') !== -1;
 
-gunner.run({ trace, reporter });
+gunner.run({ trace, reporter }).then(console.log);

src/lib/caller.js

@@ -1,5 +1,3 @@
-const { performance } = require('perf_hooks');
-
 const { isPromise } = require('../util');
 
 const caller = (test, state) => {
@@ -8,11 +6,11 @@ const caller = (test, state) => {
 
 	let value, error, errored;
 	try {
-		perf.start = performance.now();
+		perf.start = Date.now();
 		value = test(state);
-		perf.end = performance.now();
+		perf.end = Date.now();
 	} catch (e) {
-		perf.end = performance.now();
+		perf.end = Date.now();
 		errored = true;
 		error = e;
 	}
@@ -22,13 +20,13 @@ const caller = (test, state) => {
 	if (promise) {
 		return value
 		.then(res => ({
-			duration: performance.now() - perf.start,
+			duration: Date.now() - perf.start,
 			status: 'ok',
 			resolve: res,
 			promise: true
 		}))
 		.catch(rej => ({
-			duration: performance.now() - perf.start,
+			duration: Date.now() - perf.start,
 			status: 'notOk',
 			rejection: rej,
 			promise: true

src/lib/testrunner.js

@@ -116,14 +116,14 @@ const reduceQueue =
  */
 const testrunner = (instance) => {
 
-	const perf = { start: performance.now() };
+	const perf = { start: Date.now() };
 
 	return Promise.object(pipe(
 		buildTestQueue,
 		reduceQueue,
 		pick('results'),
 	)(instance)).then(results => {
-		results.duration = performance.now() - perf.start;
+		results.duration = Date.now() - perf.start;
 		return results;
 	});
 

src/util/perf_hooks.js

@@ -1,2 +0,0 @@
-/* global performance */
-module.exports = { performance };