From d38db1bc610cbc9cf32585e914aa05ce077c627c Mon Sep 17 00:00:00 2001
From: ridiculousfish <corydoras@ridiculousfish.com>
Date: Sat, 18 Jan 2020 11:50:50 -0800
Subject: [PATCH] Add a test for deep command substitutions

---
 tests/checks/deep-cmdsub.fish | 11 +++++++++++
 1 file changed, 11 insertions(+)
 create mode 100644 tests/checks/deep-cmdsub.fish

diff --git a/tests/checks/deep-cmdsub.fish b/tests/checks/deep-cmdsub.fish
new file mode 100644
index 000000000..5a6ac7966
--- /dev/null
+++ b/tests/checks/deep-cmdsub.fish
@@ -0,0 +1,11 @@
+# RUN: %fish %s
+
+# Ensure we don't hang on deep command substitutions - see #6503.
+
+set s "echo hooray"
+for i in (seq 63)
+    set s "echo ($s)"
+end
+eval $s
+#CHECK: hooray
+