From 0d30cc16568fdd2bb506e3c25c344013f0b21d28 Mon Sep 17 00:00:00 2001
From: Mitchell Hashimoto <mitchell.hashimoto@gmail.com>
Date: Fri, 13 May 2022 09:16:00 -0700
Subject: [PATCH] panic on unimplemented

---
 src/terminal/Terminal.zig | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/terminal/Terminal.zig b/src/terminal/Terminal.zig
index ba3fe6b9b..2f6395da8 100644
--- a/src/terminal/Terminal.zig
+++ b/src/terminal/Terminal.zig
@@ -439,7 +439,8 @@ pub fn linefeed(self: *Terminal, alloc: Allocator) void {
 /// Moves the cursor to the left margin.
 pub fn insertLines(self: *Terminal, alloc: Allocator, count: usize) !void {
     // TODO: scroll region bounds
-    // TODO: test
+    if (self.scrolling_region.bottom != self.rows - 1 or
+        self.scrolling_region.top != 0) @panic("unimplemented");
 
     // Move the cursor to the left margin
     self.cursor.x = 0;