From fe16891f40875c7dfedef7c09370a00fd299cea8 Mon Sep 17 00:00:00 2001
From: Henry Mercer <henrymercer@github.com>
Date: Tue, 28 Oct 2025 12:40:23 +0000
Subject: [PATCH] Add unit test for `checkDiskUsage`

---
 src/util.test.ts | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/src/util.test.ts b/src/util.test.ts
index 13ae6e0bb..406f2532c 100644
--- a/src/util.test.ts
+++ b/src/util.test.ts
@@ -534,3 +534,12 @@ test("getCgroupCpuCountFromCpus returns undefined if the CPU file exists but is
     );
   });
 });
+
+test("checkDiskUsage succeeds and produces positive numbers", async (t) => {
+  const diskUsage = await util.checkDiskUsage(getRunnerLogger(true));
+  t.true(
+    diskUsage?.numAvailableBytes !== undefined &&
+      diskUsage.numAvailableBytes > 0,
+  );
+  t.true(diskUsage?.numTotalBytes !== undefined && diskUsage.numTotalBytes > 0);
+});