From bdb93cf5c906e045d9e0ddaee7765bcf38628bc5 Mon Sep 17 00:00:00 2001
From: sergeyb <sergeyb@uber.com>
Date: Wed, 25 Feb 2026 16:45:23 +0000
Subject: [PATCH] chore(claude): CLAUDE.md to avoid change detector tests

---
 CLAUDE.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/CLAUDE.md b/CLAUDE.md
index 86bc20ad..9d7db96b 100644
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -187,6 +187,7 @@ make clean              # Clean Bazel cache
 ### Testing
 
 - **Avoid asserting on error messages** — assert on error type or generic error.
+- **No change detector tests** — don't assert on default values, internal structure, or implementation details that can change without affecting behavior. Test what the code *does*, not how it's constructed.
 - **No `time.Sleep` for synchronization** — use channels, callbacks, condition variables.
 - **Use testify** — `assert`/`require` instead of `t.Fatal()`.