1 files changed, 21 insertions, 0 deletions
diff --git a/dom/fs/test/crashtests/sw1844619.js b/dom/fs/test/crashtests/sw1844619.js
new file mode 100644
index 0000000000..dd221844f2
--- /dev/null
+++ b/dom/fs/test/crashtests/sw1844619.js
@@ -0,0 +1,21 @@
+async function timeout (cmd) {
+  const timer = new Promise((resolve, reject) => {
+    const id = setTimeout(() => {
+      clearTimeout(id)
+      reject(new Error('Promise timed out!'))
+    }, 750)
+  })
+  return Promise.race([cmd, timer])
+}
+
+(async () => {
+  const root = await navigator.storage.getDirectory()
+  const blob = new Blob(['A'])
+  const sub = await root.getDirectoryHandle('a', { 'create': true })
+  const file = await root.getFileHandle('b', { 'create': true })
+  await file.move(sub)
+  const stream = await file.createWritable({})
+  await stream.write(blob)
+  const sub2 = await root.getDirectoryHandle('a', {})
+  await sub2.move(root, 'X')
+})()