From a66bc3ec698156c520102ac49d7c5e3884180cc9 Mon Sep 17 00:00:00 2001
From: garrytan <garrytan@gmail.com>
Date: Sun, 4 Oct 2026 08:54:31 +0000
Subject: [PATCH] test(browse): Xvfb stub-failure tests allocate from ranges no
 other allocator uses

---
 browse/test/xvfb.test.ts | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/browse/test/xvfb.test.ts b/browse/test/xvfb.test.ts
index 047468673..ff2164eda 100644
--- a/browse/test/xvfb.test.ts
+++ b/browse/test/xvfb.test.ts
@@ -191,7 +191,7 @@ describe.skipIf(process.platform !== 'linux')('display allocation failure contro
     const marker = path.join(root, 'spawned');
     fs.writeFileSync(path.join(root, 'Xvfb'), `#!/bin/sh\nprintf started > ${JSON.stringify(marker)}\nexit 0\n`, { mode: 0o755 });
     try {
-      const display = pickFreeDisplay();
+      const display = pickFreeDisplay(23000, 23100); // a range no other allocator in the suite uses
       expect(display).not.toBeNull();
       const child = Bun.spawnSync([process.execPath, '-e', `
         import { spawnXvfb } from ${JSON.stringify(path.resolve(import.meta.dir, '../src/xvfb.ts'))};
@@ -246,7 +246,9 @@ describe.skipIf(process.platform !== 'linux')('display allocation failure contro
     const root = fs.mkdtempSync(path.join(os.tmpdir(), 'gstack-xvfb-failure-'));
     fs.writeFileSync(path.join(root, 'Xvfb'), '#!/bin/sh\nexit 42\n', { mode: 0o755 });
     try {
-      const display = pickFreeDisplay();
+      // Ubicloud run 23: a concurrent daemon took a default-range display between
+      // this pick and the stub's exit, so startup read as a lost race instead.
+      const display = pickFreeDisplay(22000, 22100);
       expect(display).not.toBeNull();
       const child = Bun.spawnSync([process.execPath, '-e', `
         import { spawnXvfb } from ${JSON.stringify(path.resolve(import.meta.dir, '../src/xvfb.ts'))};