Isolate TUI thread cwd resolution test (#25147)

packages/opencode/src/cli/cmd/tui/thread.ts

@@ -71,6 +71,12 @@ async function input(value?: string) {
   return piped + "\n" + value
 }
 
+export function resolveThreadDirectory(project?: string, envPWD = process.env.PWD, cwd = process.cwd()) {
+  const root = Filesystem.resolve(envPWD ?? cwd)
+  if (project) return Filesystem.resolve(path.isAbsolute(project) ? project : path.join(root, project))
+  return Filesystem.resolve(cwd)
+}
+
 export const TuiThreadCommand = cmd({
   command: "$0 [project]",
   describe: "start opencode tui",
@@ -124,10 +130,7 @@ export const TuiThreadCommand = cmd({
 
       // Resolve relative --project paths from PWD, then use the real cwd after
       // chdir so the thread and worker share the same directory key.
-      const root = Filesystem.resolve(process.env.PWD ?? process.cwd())
-      const next = args.project
-        ? Filesystem.resolve(path.isAbsolute(args.project) ? args.project : path.join(root, args.project))
-        : Filesystem.resolve(process.cwd())
+      const next = resolveThreadDirectory(args.project)
       const file = await target()
       try {
         process.chdir(next)