Merge pull request #13405 from webpack/test/profiling-plugin-stability

improve stability of ProfilingPlugin test

test/ProfilingPlugin.test.js

@@ -6,12 +6,13 @@ const webpack = require("../");
 const rimraf = require("rimraf");
 
 describe("Profiling Plugin", function () {
-	jest.setTimeout(30000);
+	jest.setTimeout(120000);
 
 	it("should handle output path with folder creation", done => {
 		const outputPath = path.join(__dirname, "js/profilingPath");
 		const finalPath = path.join(outputPath, "events.json");
 		rimraf(outputPath, () => {
+			const startTime = process.hrtime();
 			const compiler = webpack({
 				context: __dirname,
 				entry: "./fixtures/a.js",
@@ -26,13 +27,16 @@ describe("Profiling Plugin", function () {
 			});
 			compiler.run(err => {
 				if (err) return done(err);
+				const testDuration = process.hrtime(startTime);
 				if (!fs.existsSync(outputPath))
 					return done(new Error("Folder should be created."));
 				const data = require(finalPath);
 				const maxTs = data.reduce((max, entry) => Math.max(max, entry.ts), 0);
 				const minTs = data[0].ts;
 				const duration = maxTs - minTs;
-				expect(duration).toBeLessThan(10000 * 1000);
+				expect(duration).toBeLessThan(
+					testDuration[0] * 1000000 + testDuration[1] / 1000
+				);
 				const cpuProfile = data.find(entry => entry.name === "CpuProfile");
 				expect(cpuProfile).toBeTypeOf("object");
 				const profile = cpuProfile.args.data.cpuProfile;