From 7bc7ee47462193e58a2a1833ff6bfa472fa2d82c Mon Sep 17 00:00:00 2001
From: Micheal Wilkinson <micheal.wilkinson@createfuture.com>
Date: Sat, 21 Mar 2026 11:18:45 +0000
Subject: [PATCH] chore(go): validate core constructor dependencies

---
 internal/homesick/core/core.go | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/internal/homesick/core/core.go b/internal/homesick/core/core.go
index f3c3f36..6668437 100644
--- a/internal/homesick/core/core.go
+++ b/internal/homesick/core/core.go
@@ -28,6 +28,13 @@ type App struct {
 }
 
 func New(stdout io.Writer, stderr io.Writer) (*App, error) {
+	if stdout == nil {
+		return nil, errors.New("stdout writer cannot be nil")
+	}
+	if stderr == nil {
+		return nil, errors.New("stderr writer cannot be nil")
+	}
+
 	home, err := os.UserHomeDir()
 	if err != nil {
 		return nil, fmt.Errorf("resolve home directory: %w", err)