From 317038e7cb11d3db3f3b4679e260de4e119c210c Mon Sep 17 00:00:00 2001
From: zeertzjq <zeertzjq@outlook.com>
Date: Wed, 5 Jul 2023 16:30:23 +0800
Subject: fix(plines): don't return very large height on very long line
 (#24260)

---
 test/functional/legacy/scroll_opt_spec.lua | 40 ++++++++++++++++++++++++++++++
 1 file changed, 40 insertions(+)

(limited to 'test/functional')

diff --git a/test/functional/legacy/scroll_opt_spec.lua b/test/functional/legacy/scroll_opt_spec.lua
index ae6a409762..b179338665 100644
--- a/test/functional/legacy/scroll_opt_spec.lua
+++ b/test/functional/legacy/scroll_opt_spec.lua
@@ -1109,4 +1109,44 @@ describe('smoothscroll', function()
                                               |
     ]])
   end)
+
+  it('works with very long line', function()
+    screen:set_default_attr_ids({
+      [1] = {foreground = Screen.colors.Brown},
+      [2] = {foreground = Screen.colors.Blue1, bold = true},
+    })
+    exec([[
+      edit test/functional/fixtures/bigfile_oneline.txt
+      setlocal smoothscroll number
+    ]])
+    screen:expect([[
+      {1:  1 }^0000;<control>;Cc;0;BN;;;;;N;NULL;;;|
+      {1:    }; 0001;<control>;Cc;0;BN;;;;;N;START|
+      {1:    } OF HEADING;;;; 0002;<control>;Cc;0;|
+      {1:    }BN;;;;;N;START OF TEXT;;;; 0003;<con|
+      {1:    }trol>;Cc;0;BN;;;;;N;END OF TEXT;;;; |
+      {1:    }0004;<control>;Cc;0;BN;;;;;N;END OF |
+      {1:    }TRANSMISSION;;;; 0005;<control>;Cc;0|
+      {1:    };BN;;;;;N;ENQUIRY;;;; 0006;<control>|
+      {1:    };Cc;0;BN;;;;;N;ACKNOWLEDGE;;;; 0007;|
+      {1:    }<control>;Cc;0;BN;;;;;N;BELL;;;; 000|
+      {1:    }8;<control>;Cc;0;BN;;;;;N;BACKSPACE;|
+                                              |
+    ]])
+    feed('j')
+    screen:expect([[
+      {2:<<<}{1: }CJK COMPATIBILITY IDEOGRAPH-2F91F;Lo|
+      {1:    };0;L;243AB;;;;N;;;;; 2F920;CJK COMPA|
+      {1:    }TIBILITY IDEOGRAPH-2F920;Lo;0;L;7228|
+      {1:    };;;;N;;;;; 2F921;CJK COMPATIBILITY I|
+      {1:    }DEOGRAPH-2F921;Lo;0;L;7235;;;;N;;;;;|
+      {1:    } 2F922;CJK COMPATIBILITY IDEOGRAPH-2|
+      {1:    }F922;Lo;0;L;7250;;;;N;;;;;          |
+      {1:  2 }^2F923;CJK COMPATIBILITY IDEOGRAPH-2F|
+      {1:    }923;Lo;0;L;24608;;;;N;;;;;          |
+      {1:  3 }2F924;CJK COMPATIBILITY IDEOGRAPH-2F|
+      {1:    }924;Lo;0;L;7280;;;;N;;;;;           |
+                                              |
+    ]])
+  end)
 end)
-- 
cgit