patch 8.2.4795: 'cursorbind' scrolling depends on whether 'cursorline' is setv8.2.4795

Problem:    'cursorbind' scrolling depends on whether 'cursorline' is set.
Solution:   Always call validate_cursor(). (Christian Brabandt, closes #10230,
            closes #10014)

8 files changed, 92 insertions, 10 deletions

diff --git a/src/move.c b/src/move.c
index a6d2fde74..31dc95b2f 100644
--- a/src/move.c
+++ b/src/move.c
@@ -2918,10 +2918,7 @@ do_check_cursorbind(void)
 	    restart_edit_save = restart_edit;
 	    restart_edit = TRUE;
 	    check_cursor();
-# ifdef FEAT_SYN_HL
-	    if (curwin->w_p_cul || curwin->w_p_cuc)
-		validate_cursor();
-# endif
+	    validate_cursor();
 	    restart_edit = restart_edit_save;
 	    // Correct cursor for multi-byte character.
 	    if (has_mbyte)
diff --git a/src/testdir/README.txt b/src/testdir/README.txt
index e9e9aebf0..b8bc52f1e 100644
--- a/src/testdir/README.txt
+++ b/src/testdir/README.txt
@@ -41,6 +41,21 @@ What you can use (see test_assert.vim for an example):
   with "Skipped" so that it's clear this still needs work.  E.g.: throw
   "Skipped: Bug with <c-e> and popupmenu not fixed yet"
 
+- The following environment variables are recognized and can be set to
+  influence the behavior of the test suite (see runtest.vim for details)
+
+  - $TEST_MAY_FAIL=Test_channel_one    - ignore those failing tests
+  - $TEST_FILTER=Test_channel    - only run test that match this pattern
+  - $TEST_SKIP_PAT=Test_channel  - skip tests that match this pattern
+  - $TEST_NO_RETRY=yes           - do not try to re-run failing tests
+  You can also set them in Vim:
+    :let $TEST_MAY_FAIL = 'Test_channel_one'
+    :let $TEST_FILTER = '_set_mode'
+    :let $TEST_SKIP_PAT = 'Test_loop_forever'
+    :let $TEST_NO_RETRY = 'yes'
+  Use an empty string to revert, e.g.:
+    :let $TEST_FILTER = ''
+
 - See the start of runtest.vim for more help.
 
 
@@ -76,19 +91,24 @@ The file 'messages' contains the messages generated by the test script.  If a
 test fails, then the test.log file contains the error messages.  If all the
 tests are successful, then this file will be an empty file.
 
-To run a single test function from a test script:
+- To run a single test function from a test script:
 
     $ ../vim -u NONE -S runtest.vim <test_file>.vim <function_name>
 
-To run all the tests:
+- To execute only specific test functions, add a second argument:
+
+	 $ ../vim -u NONE -S runtest.vim test_channel.vim open_delay
+
+
+- To run all the tests:
 
     $ make
 
-To run the test on MS-Windows using the MSVC nmake:
+- To run the test on MS-Windows using the MSVC nmake:
 
     > nmake -f Make_dos.mak
 
-To run the tests with GUI Vim:
+- To run the tests with GUI Vim:
 
     $ make GUI_FLAG=-g
 
@@ -96,7 +116,6 @@ To run the tests with GUI Vim:
 
     $ make VIMPROG=../gvim
 
-To cleanup the temporary files after running the tests:
+- To cleanup the temporary files after running the tests:
 
     $ make clean
-
diff --git a/src/testdir/dumps/Test_hor_scroll_1.dump b/src/testdir/dumps/Test_hor_scroll_1.dump
new file mode 100644
index 000000000..615afb8e1
--- /dev/null
+++ b/src/testdir/dumps/Test_hor_scroll_1.dump
@@ -0,0 +1,8 @@
+|a+0&#ffffff0| |b@1| |c@1| |d@1| |e@1| |f@1| |g@1| ||+1&&|a+0&&@1| |b@1| |c@1| |d@1| |e@1| |f@1| |g@1> |h@1| |i@1| |j@1| |k@1| |l@1| |m@1| |n@1| |o@1| |p@1| |q@1| |r@1| 
+@19| +0&#e0e0e08||+1&#ffffff0| +0&&@19| +0&#e0e0e08| +0&#ffffff0@32
+@19| +0&#e0e0e08||+1&#ffffff0| +0&&@19| +0&#e0e0e08| +0&#ffffff0@32
+@19| +0&#e0e0e08||+1&#ffffff0| +0&&@19| +0&#e0e0e08| +0&#ffffff0@32
+@19| +0&#e0e0e08||+1&#ffffff0| +0&&@19| +0&#e0e0e08| +0&#ffffff0@32
+|~+0#4040ff13&| @18||+1#0000000&|~+0#4040ff13&| @52
+|<+1#0000000&|a|m|e|]| |[|+|]| |1|,|2|1| @2|A|l@1| |[+3&&|N|o| |N|a|m|e|]| |[|+|]| @22|1|,|2|1| @10|A|l@1
+| +0&&@74
diff --git a/src/testdir/dumps/Test_hor_scroll_2.dump b/src/testdir/dumps/Test_hor_scroll_2.dump
new file mode 100644
index 000000000..dfe2e98ae
--- /dev/null
+++ b/src/testdir/dumps/Test_hor_scroll_2.dump
@@ -0,0 +1,8 @@
+| +0&#ffffff0|h@1| |i@1| |j@1| |k@1| |l@1| |m@1| |n||+1&&|a+0&&@1| |b@1| |c@1| |d@1| |e@1| |f@1| |g@1| |h@1| |i@1| |j@1| >k@1| |l@1| |m@1| |n@1| |o@1| |p@1| |q@1| |r@1| 
+@10| +0&#e0e0e08| +0&#ffffff0@8||+1&&| +0&&@29| +0&#e0e0e08| +0&#ffffff0@22
+@10| +0&#e0e0e08| +0&#ffffff0@8||+1&&| +0&&@29| +0&#e0e0e08| +0&#ffffff0@22
+@10| +0&#e0e0e08| +0&#ffffff0@8||+1&&| +0&&@29| +0&#e0e0e08| +0&#ffffff0@22
+@10| +0&#e0e0e08| +0&#ffffff0@8||+1&&| +0&&@29| +0&#e0e0e08| +0&#ffffff0@22
+|~+0#4040ff13&| @18||+1#0000000&|~+0#4040ff13&| @52
+|<+1#0000000&|a|m|e|]| |[|+|]| |1|,|3|1| @2|A|l@1| |[+3&&|N|o| |N|a|m|e|]| |[|+|]| @22|1|,|3|1| @10|A|l@1
+| +0&&@74
diff --git a/src/testdir/dumps/Test_hor_scroll_3.dump b/src/testdir/dumps/Test_hor_scroll_3.dump
new file mode 100644
index 000000000..db9fd6ff1
--- /dev/null
+++ b/src/testdir/dumps/Test_hor_scroll_3.dump
@@ -0,0 +1,8 @@
+|a+8&#ffffff0| |b@1| |c@1| |d@1| |e@1| |f@1| |g@1| ||+1&&|a+8&&@1| |b@1| |c@1| |d@1| |e@1| |f@1| |g@1> |h@1| |i@1| |j@1| |k@1| |l@1| |m@1| |n@1| |o@1| |p@1| |q@1| |r@1| 
+| +0&&@18| +0&#e0e0e08||+1&#ffffff0| +0&&@19| +0&#e0e0e08| +0&#ffffff0@32
+@19| +0&#e0e0e08||+1&#ffffff0| +0&&@19| +0&#e0e0e08| +0&#ffffff0@32
+@19| +0&#e0e0e08||+1&#ffffff0| +0&&@19| +0&#e0e0e08| +0&#ffffff0@32
+@19| +0&#e0e0e08||+1&#ffffff0| +0&&@19| +0&#e0e0e08| +0&#ffffff0@32
+|~+0#4040ff13&| @18||+1#0000000&|~+0#4040ff13&| @52
+|<+1#0000000&|a|m|e|]| |[|+|]| |1|,|2|1| @2|A|l@1| |[+3&&|N|o| |N|a|m|e|]| |[|+|]| @22|1|,|2|1| @10|A|l@1
+|:+0&&|w|i|n|d|o| |:|s|e|t| |c|u|r|s|o|r|l|i|n|e| @52
diff --git a/src/testdir/dumps/Test_hor_scroll_4.dump b/src/testdir/dumps/Test_hor_scroll_4.dump
new file mode 100644
index 000000000..81821604d
--- /dev/null
+++ b/src/testdir/dumps/Test_hor_scroll_4.dump
@@ -0,0 +1,8 @@
+| +8&#ffffff0|h@1| |i@1| |j@1| |k@1| |l@1| |m@1| |n||+1&&|a+8&&@1| |b@1| |c@1| |d@1| |e@1| |f@1| |g@1| |h@1| |i@1| |j@1| >k@1| |l@1| |m@1| |n@1| |o@1| |p@1| |q@1| |r@1| 
+| +0&&@9| +0&#e0e0e08| +0&#ffffff0@8||+1&&| +0&&@29| +0&#e0e0e08| +0&#ffffff0@22
+@10| +0&#e0e0e08| +0&#ffffff0@8||+1&&| +0&&@29| +0&#e0e0e08| +0&#ffffff0@22
+@10| +0&#e0e0e08| +0&#ffffff0@8||+1&&| +0&&@29| +0&#e0e0e08| +0&#ffffff0@22
+@10| +0&#e0e0e08| +0&#ffffff0@8||+1&&| +0&&@29| +0&#e0e0e08| +0&#ffffff0@22
+|~+0#4040ff13&| @18||+1#0000000&|~+0#4040ff13&| @52
+|<+1#0000000&|a|m|e|]| |[|+|]| |1|,|3|1| @2|A|l@1| |[+3&&|N|o| |N|a|m|e|]| |[|+|]| @22|1|,|3|1| @10|A|l@1
+|:+0&&|w|i|n|d|o| |:|s|e|t| |c|u|r|s|o|r|l|i|n|e| @52
diff --git a/src/testdir/test_cursorline.vim b/src/testdir/test_cursorline.vim
index 7797cd628..776eea856 100644
--- a/src/testdir/test_cursorline.vim
+++ b/src/testdir/test_cursorline.vim
@@ -293,5 +293,37 @@ func Test_cursorline_screenline_update()
   call delete('Xcul_screenline')
 endfunc
 
+func Test_cursorline_cursorbind_horizontal_scroll()
+  CheckScreendump
+
+  let lines =<< trim END
+      call setline(1, 'aa bb cc dd ee ff gg hh ii jj kk ll mm' .. 
+      \ ' nn oo pp qq rr ss tt uu vv ww xx yy zz')
+      set nowrap
+      " The following makes the cursor apparent on the screen dump
+      set sidescroll=1 cursorcolumn
+      " add empty lines, required for cursorcolumn
+      call append(1, ['','','',''])
+      20vsp
+      windo :set cursorbind
+  END
+  call writefile(lines, 'Xhor_scroll')
+
+  let buf = RunVimInTerminal('-S Xhor_scroll', #{rows: 8})
+  call term_sendkeys(buf, "20l")
+  call VerifyScreenDump(buf, 'Test_hor_scroll_1', {})
+  call term_sendkeys(buf, "10l")
+  call VerifyScreenDump(buf, 'Test_hor_scroll_2', {})
+  call term_sendkeys(buf, ":windo :set cursorline\<cr>")
+  call term_sendkeys(buf, "0")
+  call term_sendkeys(buf, "20l")
+  call VerifyScreenDump(buf, 'Test_hor_scroll_3', {})
+  call term_sendkeys(buf, "10l")
+  call VerifyScreenDump(buf, 'Test_hor_scroll_4', {})
+
+  call StopVimInTerminal(buf)
+  "call delete('Xhor_scroll')
+endfunc
+
 
 " vim: shiftwidth=2 sts=2 expandtab
diff --git a/src/version.c b/src/version.c
index 728f8bb81..c54efaae9 100644
--- a/src/version.c
+++ b/src/version.c
@@ -747,6 +747,8 @@ static char *(features[]) =
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    4795,
+/**/
     4794,
 /**/
     4793,