From aae0d3ac3498ece4673ec29277dc040234f9f643 Mon Sep 17 00:00:00 2001
From: Johannes Sjoberg <johannes.sjoberg@live.se>
Date: Sat, 1 Oct 2022 01:33:17 +0200
Subject: [PATCH] feat: Enable testResultsProcessor to be async (#13343)

---
 CHANGELOG.md                                 |  2 ++
 e2e/__tests__/testResultsProcessor.test.ts   | 12 ++++++++++++
 e2e/test-results-processor/processorAsync.js | 11 +++++++++++
 packages/jest-core/src/runJest.ts            |  2 +-
 4 files changed, 26 insertions(+), 1 deletion(-)
 create mode 100644 e2e/test-results-processor/processorAsync.js

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4347af31ddfb..b4cdd3420be1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,8 @@
 
 ### Features
 
+- `[jest-core]` Enable testResultsProcessor to be async ([#13343](https://github.com/facebook/jest/pull/13343))
+
 ### Fixes
 
 ### Chore & Maintenance
diff --git a/e2e/__tests__/testResultsProcessor.test.ts b/e2e/__tests__/testResultsProcessor.test.ts
index 9c62291ba28a..9ee4b7fbf6b8 100644
--- a/e2e/__tests__/testResultsProcessor.test.ts
+++ b/e2e/__tests__/testResultsProcessor.test.ts
@@ -20,6 +20,18 @@ test('testResultsProcessor', () => {
   expect(json.processed).toBe(true);
 });
 
+test('testResultsProcessor async', () => {
+  const processorPath = path.resolve(
+    __dirname,
+    '../test-results-processor/processorAsync.js',
+  );
+  const {json} = runWithJson('test-results-processor', [
+    '--json',
+    `--testResultsProcessor=${processorPath}`,
+  ]);
+  expect(json.processed).toBe(true);
+});
+
 test('testResultsProcessor written in ESM', () => {
   const processorPath = path.resolve(
     __dirname,
diff --git a/e2e/test-results-processor/processorAsync.js b/e2e/test-results-processor/processorAsync.js
new file mode 100644
index 000000000000..efe73f0b200e
--- /dev/null
+++ b/e2e/test-results-processor/processorAsync.js
@@ -0,0 +1,11 @@
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+module.exports = async function (results) {
+  results.processed = true;
+  return results;
+};
diff --git a/packages/jest-core/src/runJest.ts b/packages/jest-core/src/runJest.ts
index 7061d3d282e7..5f0d74cb25d1 100644
--- a/packages/jest-core/src/runJest.ts
+++ b/packages/jest-core/src/runJest.ts
@@ -99,7 +99,7 @@ const processResults = async (
     const processor = await requireOrImportModule<TestResultsProcessor>(
       testResultsProcessor,
     );
-    runResults = processor(runResults);
+    runResults = await processor(runResults);
   }
   if (isJSON) {
     if (outputFile) {