From f8ab6f0ac519f920c417bc3f7d880e3e687e60d4 Mon Sep 17 00:00:00 2001
From: Joel Martin <github@martintribe.org>
Date: Tue, 6 Aug 2024 13:16:23 -0500
Subject: [PATCH 1/2] tests/step3: check that nil can be bound env value

---
 impls/tests/step3_env.mal | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/impls/tests/step3_env.mal b/impls/tests/step3_env.mal
index 1a84d442d4..5e77c4666f 100644
--- a/impls/tests/step3_env.mal
+++ b/impls/tests/step3_env.mal
@@ -14,6 +14,12 @@ x
 ;=>4
 x
 ;=>4
+(def! x nil)
+x
+;=>nil
+(def! x 5)
+x
+;=>5
 (def! y (+ 1 7))
 ;=>8
 y
@@ -44,7 +50,7 @@ w
 (let* (x 9) x)
 ;=>9
 x
-;=>4
+;=>5
 (let* (z (+ 2 3)) (+ 1 z))
 ;=>6
 (let* (p (+ 2 3) q (+ 2 p)) (+ p q))

From 11cf2f6c36340b8609f6c214afd68f701030769b Mon Sep 17 00:00:00 2001
From: Joel Martin <github@martintribe.org>
Date: Tue, 6 Aug 2024 13:17:09 -0500
Subject: [PATCH 2/2] tests/step4: check closure binds name (not value)

---
 impls/tests/step4_if_fn_do.mal | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/impls/tests/step4_if_fn_do.mal b/impls/tests/step4_if_fn_do.mal
index b98f2dae2a..aeab17b3f1 100644
--- a/impls/tests/step4_if_fn_do.mal
+++ b/impls/tests/step4_if_fn_do.mal
@@ -202,6 +202,15 @@
 (plus7 8)
 ;=>15
 
+;; Testing lexical function scope binds names (not values)
+(def! a 12)
+(def! fx (fn* () a))
+(fx)
+;=>12
+(def! a 2000)
+(fx)
+;=>2000
+
 ;; Testing do form
 (do (prn 101))
 ;/101