set $VISUAL whenever $EDITOR is set

since prompt_toolkit consults $VISUAL first for the \edit command.

Author: rolandwalker

changelog.md

@@ -1,3 +1,11 @@
+Upcoming (TBD)
+==============
+
+Internal
+---------
+* Set `$VISUAL` whenever `$EDITOR` is set.
+
+
 1.58.0 (2026/02/28)
 ==============
 

test/features/environment.py

@@ -31,6 +31,7 @@ def before_all(context):
     """Set env parameters."""
     os.environ["LINES"] = "100"
     os.environ["COLUMNS"] = "100"
+    os.environ["VISUAL"] = "ex"
     os.environ["EDITOR"] = "ex"
     os.environ["LC_ALL"] = "en_US.UTF-8"
     os.environ["PROMPT_TOOLKIT_NO_CPR"] = "1"