From 48e7c871d9798161e99a30ff738ca94b92aed7a3 Mon Sep 17 00:00:00 2001
From: Luca Casonato <hello@lcas.dev>
Date: Wed, 7 Jul 2021 20:19:47 +0200
Subject: [PATCH] Revert "tests: parallelize test runs in wpt" (#11321)

This reverts commit 7edb1d713c036583e2ba3caf0df042835781a49c.
---
 tools/wpt.ts | 21 ++++-----------------
 1 file changed, 4 insertions(+), 17 deletions(-)

diff --git a/tools/wpt.ts b/tools/wpt.ts
index 9d1e689ac8..799e6b0c7e 100755
--- a/tools/wpt.ts
+++ b/tools/wpt.ts
@@ -32,7 +32,6 @@ import {
 } from "./wpt/utils.ts";
 import { blue, bold, green, red, yellow } from "../test_util/std/fmt/colors.ts";
 import { writeAll, writeAllSync } from "../test_util/std/io/util.ts";
-import { pooledMap } from "../test_util/std/async/pool.ts";
 import { saveExpectation } from "./wpt/utils.ts";
 
 const command = Deno.args[0];
@@ -154,29 +153,17 @@ async function run() {
   console.log(`Going to run ${tests.length} test files.`);
 
   const results = await runWithTestUtil(false, async () => {
-    const results: { test: TestToRun; result: TestResult }[] = [];
+    const results = [];
 
-    const cores = Deno.systemCpuInfo().cores ?? 4;
-    const inParallel = !(cores === 1 || tests.length === 1);
-
-    const iter = pooledMap(cores, tests, async (test) => {
-      if (!inParallel) {
-        console.log(`${blue("-".repeat(40))}\n${bold(test.path)}\n`);
-      }
+    for (const test of tests) {
+      console.log(`${blue("-".repeat(40))}\n${bold(test.path)}\n`);
       const result = await runSingleTest(
         test.url,
         test.options,
-        inParallel ? () => {} : createReportTestCase(test.expectation),
+        createReportTestCase(test.expectation),
       );
       results.push({ test, result });
-      if (inParallel) {
-        console.log(`${blue("-".repeat(40))}\n${bold(test.path)}\n`);
-      }
       reportVariation(result, test.expectation);
-    });
-
-    for await (const _ of iter) {
-      // do nothing
     }
 
     return results;