From c7c15b206665de41d15254d3292608a8cb08e7e9 Mon Sep 17 00:00:00 2001
From: Andrew Rumble <andrew.rumble@overleaf.com>
Date: Wed, 29 Oct 2025 11:42:10 +0000
Subject: [PATCH] Split tests into sequential and parallel projects

Sequential tests need to be run without parallelism because they rely on
a database fixture that can have side effects.

GitOrigin-RevId: b614cbe4dbaf2319e681d5607a0a64cbbed8c021
---
 ...mjs => HistoryManager.sequential.test.mjs} |  0
 services/web/vitest.config.js                 | 29 ++++++++++++++++---
 2 files changed, 25 insertions(+), 4 deletions(-)
 rename services/web/test/unit/src/History/{HistoryManager.test.mjs => HistoryManager.sequential.test.mjs} (100%)

diff --git a/services/web/test/unit/src/History/HistoryManager.test.mjs b/services/web/test/unit/src/History/HistoryManager.sequential.test.mjs
similarity index 100%
rename from services/web/test/unit/src/History/HistoryManager.test.mjs
rename to services/web/test/unit/src/History/HistoryManager.sequential.test.mjs
diff --git a/services/web/vitest.config.js b/services/web/vitest.config.js
index fce3cc59de..2ad9400deb 100644
--- a/services/web/vitest.config.js
+++ b/services/web/vitest.config.js
@@ -17,13 +17,34 @@ if (process.env.CI && process.env.MOCHA_ROOT_SUITE_NAME) {
 }
 module.exports = defineConfig({
   test: {
-    include: [
-      'modules/*/test/unit/**/*.test.mjs',
-      'test/unit/src/**/*.test.mjs',
-    ],
     setupFiles: ['./test/unit/vitest_bootstrap.mjs'],
     globals: true,
     isolate: false,
+    projects: [
+      {
+        extends: true,
+        test: {
+          name: 'Parallel',
+          include: [
+            'modules/*/test/unit/**/*.test.mjs',
+            'test/unit/src/**/*.test.mjs',
+          ],
+          exclude: ['**/*.sequential.test.mjs'],
+          fileParallelism: true,
+        },
+      },
+      {
+        extends: true,
+        test: {
+          name: 'Sequential',
+          include: [
+            'modules/*/test/unit/**/*.sequential.test.mjs',
+            'test/unit/src/**/*.sequential.test.mjs',
+          ],
+          fileParallelism: false,
+        },
+      },
+    ],
     ...reporterOptions,
   },
 })