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-rw-r--r--test/functional/ui/scrollbind_spec.lua442
1 files changed, 442 insertions, 0 deletions
diff --git a/test/functional/ui/scrollbind_spec.lua b/test/functional/ui/scrollbind_spec.lua
new file mode 100644
index 0000000000..9e70b25efa
--- /dev/null
+++ b/test/functional/ui/scrollbind_spec.lua
@@ -0,0 +1,442 @@
+local t = require('test.testutil')
+local n = require('test.functional.testnvim')()
+local clear = n.clear
+local Screen = require('test.functional.ui.screen')
+
+before_each(clear)
+
+describe('Scrollbind', function()
+ local screen --- @type test.functional.ui.screen
+
+ before_each(function()
+ screen = Screen.new(40, 12)
+ screen:attach()
+ end)
+
+ it('works with one buffer with virtual lines', function()
+ n.exec_lua(function()
+ local lines = {} --- @type string[]
+
+ for i = 1, 20 do
+ lines[i] = tostring(i * 2 - 1)
+ end
+
+ local ns = vim.api.nvim_create_namespace('test')
+
+ vim.api.nvim_buf_set_lines(0, 0, -1, false, lines)
+ vim.bo.buftype = 'nofile'
+
+ for i in ipairs(lines) do
+ vim.api.nvim_buf_set_extmark(0, ns, i - 1, 0, {
+ virt_lines = { { { tostring(2 * i) .. ' v' } } },
+ })
+ end
+
+ vim.wo.scrollbind = true
+ vim.cmd.vsplit()
+ vim.wo.scrollbind = true
+ end)
+
+ n.feed('<C-d>')
+
+ t.eq(5, n.api.nvim_get_option_value('scroll', {}))
+
+ screen:expect({
+ grid = [[
+ 6 v │6 v |
+ 7 │7 |
+ 8 v │8 v |
+ 9 │9 |
+ 10 v │10 v |
+ ^11 │11 |
+ 12 v │12 v |
+ 13 │13 |
+ 14 v │14 v |
+ 15 │15 |
+ {3:[Scratch] }{2:[Scratch] }|
+ |
+ ]],
+ })
+
+ n.feed('<C-u>')
+
+ local line1_grid = [[
+ ^1 │1 |
+ 2 v │2 v |
+ 3 │3 |
+ 4 v │4 v |
+ 5 │5 |
+ 6 v │6 v |
+ 7 │7 |
+ 8 v │8 v |
+ 9 │9 |
+ 10 v │10 v |
+ {3:[Scratch] }{2:[Scratch] }|
+ |
+ ]]
+
+ screen:expect({ grid = line1_grid })
+
+ n.api.nvim_set_option_value('scroll', 6, {})
+
+ n.feed('<C-d>')
+
+ screen:expect({
+ grid = [[
+ 7 │7 |
+ 8 v │8 v |
+ 9 │9 |
+ 10 v │10 v |
+ 11 │11 |
+ 12 v │12 v |
+ ^13 │13 |
+ 14 v │14 v |
+ 15 │15 |
+ 16 v │16 v |
+ {3:[Scratch] }{2:[Scratch] }|
+ |
+ ]],
+ })
+
+ n.feed('<C-u>')
+
+ screen:expect({ grid = line1_grid })
+ end)
+
+ it('works with two buffers with virtual lines on one side', function()
+ n.exec_lua(function()
+ local lines = {} --- @type string[]
+
+ for i = 1, 20 do
+ lines[i] = tostring(i)
+ end
+
+ local ns = vim.api.nvim_create_namespace('test')
+
+ vim.api.nvim_buf_set_lines(0, 0, -1, false, lines)
+ vim.bo.buftype = 'nofile'
+
+ vim.wo.scrollbind = true
+ vim.cmd.vnew()
+
+ lines = {} --- @type string[]
+
+ for i = 1, 20 do
+ lines[i] = tostring(i + (i > 3 and 4 or 0))
+ end
+ vim.api.nvim_buf_set_lines(0, 0, -1, false, lines)
+ vim.bo.buftype = 'nofile'
+
+ vim.api.nvim_buf_set_extmark(0, ns, 2, 0, {
+ virt_lines = {
+ { { '4 v' } },
+ { { '5 v' } },
+ { { '6 v' } },
+ { { '7 v' } },
+ },
+ })
+
+ vim.wo.scrollbind = true
+ end)
+
+ n.feed('<C-d>')
+
+ t.eq(5, n.api.nvim_get_option_value('scroll', {}))
+
+ screen:expect({
+ grid = [[
+ 6 v │6 |
+ 7 v │7 |
+ 8 │8 |
+ 9 │9 |
+ ^10 │10 |
+ 11 │11 |
+ 12 │12 |
+ 13 │13 |
+ 14 │14 |
+ 15 │15 |
+ {3:[Scratch] }{2:[Scratch] }|
+ |
+ ]],
+ })
+
+ n.feed('<C-u>')
+
+ local line1_grid = [[
+ ^1 │1 |
+ 2 │2 |
+ 3 │3 |
+ 4 v │4 |
+ 5 v │5 |
+ 6 v │6 |
+ 7 v │7 |
+ 8 │8 |
+ 9 │9 |
+ 10 │10 |
+ {3:[Scratch] }{2:[Scratch] }|
+ |
+ ]]
+
+ screen:expect({ grid = line1_grid })
+
+ n.api.nvim_set_option_value('scroll', 6, {})
+
+ n.feed('<C-d>')
+
+ screen:expect({
+ grid = [[
+ 7 v │7 |
+ 8 │8 |
+ 9 │9 |
+ 10 │10 |
+ ^11 │11 |
+ 12 │12 |
+ 13 │13 |
+ 14 │14 |
+ 15 │15 |
+ 16 │16 |
+ {3:[Scratch] }{2:[Scratch] }|
+ |
+ ]],
+ })
+
+ n.feed('<C-u>')
+
+ screen:expect({ grid = line1_grid })
+
+ -- Note: not the same as n.feed('4<C-e>')
+ n.feed('<C-e>')
+ n.feed('<C-e>')
+ n.feed('<C-e>')
+ n.feed('<C-e>')
+
+ screen:expect({
+ grid = [[
+ 5 v │5 |
+ 6 v │6 |
+ 7 v │7 |
+ ^8 │8 |
+ 9 │9 |
+ 10 │10 |
+ 11 │11 |
+ 12 │12 |
+ 13 │13 |
+ 14 │14 |
+ {3:[Scratch] }{2:[Scratch] }|
+ |
+ ]],
+ })
+
+ n.feed('<C-e>')
+
+ screen:expect({
+ grid = [[
+ 6 v │6 |
+ 7 v │7 |
+ ^8 │8 |
+ 9 │9 |
+ 10 │10 |
+ 11 │11 |
+ 12 │12 |
+ 13 │13 |
+ 14 │14 |
+ 15 │15 |
+ {3:[Scratch] }{2:[Scratch] }|
+ |
+ ]],
+ })
+
+ n.feed('<C-y>')
+ n.feed('<C-y>')
+
+ screen:expect({
+ grid = [[
+ 4 v │4 |
+ 5 v │5 |
+ 6 v │6 |
+ 7 v │7 |
+ ^8 │8 |
+ 9 │9 |
+ 10 │10 |
+ 11 │11 |
+ 12 │12 |
+ 13 │13 |
+ {3:[Scratch] }{2:[Scratch] }|
+ |
+ ]],
+ })
+ end)
+
+ it('works with buffers of different lengths', function()
+ n.exec_lua(function()
+ vim.api.nvim_buf_set_lines(0, 0, -1, false, { '1', '2', '3' })
+ vim.bo.buftype = 'nofile'
+
+ vim.wo.scrollbind = true
+ vim.cmd.vnew()
+
+ local lines = {} --- @type string[]
+
+ for i = 1, 50 do
+ lines[i] = tostring(i)
+ end
+
+ vim.api.nvim_buf_set_lines(0, 0, -1, false, lines)
+ vim.bo.buftype = 'nofile'
+ vim.wo.scrollbind = true
+ end)
+
+ n.feed('10<C-e>')
+
+ screen:expect({
+ grid = [[
+ ^11 │3 |
+ 12 │{1:~ }|
+ 13 │{1:~ }|
+ 14 │{1:~ }|
+ 15 │{1:~ }|
+ 16 │{1:~ }|
+ 17 │{1:~ }|
+ 18 │{1:~ }|
+ 19 │{1:~ }|
+ 20 │{1:~ }|
+ {3:[Scratch] }{2:[Scratch] }|
+ |
+ ]],
+ })
+
+ n.feed('<C-y>')
+
+ screen:expect({
+ grid = [[
+ 10 │3 |
+ ^11 │{1:~ }|
+ 12 │{1:~ }|
+ 13 │{1:~ }|
+ 14 │{1:~ }|
+ 15 │{1:~ }|
+ 16 │{1:~ }|
+ 17 │{1:~ }|
+ 18 │{1:~ }|
+ 19 │{1:~ }|
+ {3:[Scratch] }{2:[Scratch] }|
+ |
+ ]],
+ })
+ end)
+
+ it('works with buffers of different lengths and virtual lines', function()
+ n.exec_lua(function()
+ vim.api.nvim_buf_set_lines(0, 0, -1, false, { '1', '5', '6' })
+
+ local ns = vim.api.nvim_create_namespace('test')
+ vim.api.nvim_buf_set_extmark(0, ns, 0, 0, {
+ virt_lines = {
+ { { '2 v' } },
+ { { '3 v' } },
+ { { '4 v' } },
+ },
+ })
+
+ vim.bo.buftype = 'nofile'
+
+ vim.wo.scrollbind = true
+ vim.cmd.vnew()
+
+ local lines = {} --- @type string[]
+
+ for i = 1, 50 do
+ lines[i] = tostring(i)
+ end
+
+ vim.api.nvim_buf_set_lines(0, 0, -1, false, lines)
+ vim.bo.buftype = 'nofile'
+ vim.wo.scrollbind = true
+ end)
+
+ n.feed('<C-e>')
+ n.feed('<C-e>')
+ screen:expect({
+ grid = [[
+ ^3 │3 v |
+ 4 │4 v |
+ 5 │5 |
+ 6 │6 |
+ 7 │{1:~ }|
+ 8 │{1:~ }|
+ 9 │{1:~ }|
+ 10 │{1:~ }|
+ 11 │{1:~ }|
+ 12 │{1:~ }|
+ {3:[Scratch] }{2:[Scratch] }|
+ |
+ ]],
+ })
+
+ n.feed('8<C-e>')
+
+ screen:expect({
+ grid = [[
+ ^11 │6 |
+ 12 │{1:~ }|
+ 13 │{1:~ }|
+ 14 │{1:~ }|
+ 15 │{1:~ }|
+ 16 │{1:~ }|
+ 17 │{1:~ }|
+ 18 │{1:~ }|
+ 19 │{1:~ }|
+ 20 │{1:~ }|
+ {3:[Scratch] }{2:[Scratch] }|
+ |
+ ]],
+ })
+
+ n.feed('<C-y>')
+ n.feed('<C-y>')
+ n.feed('<C-y>')
+ n.feed('<C-y>')
+ n.feed('<C-y>')
+
+ t.eq(n.exec_lua [[return vim.fn.line('w0', 1001)]], 6)
+ t.eq(n.exec_lua [[return vim.fn.line('w0', 1000)]], 3)
+
+ screen:expect({
+ grid = [[
+ 6 │6 |
+ 7 │{1:~ }|
+ 8 │{1:~ }|
+ 9 │{1:~ }|
+ 10 │{1:~ }|
+ ^11 │{1:~ }|
+ 12 │{1:~ }|
+ 13 │{1:~ }|
+ 14 │{1:~ }|
+ 15 │{1:~ }|
+ {3:[Scratch] }{2:[Scratch] }|
+ |
+ ]],
+ })
+
+ n.feed('<C-y>')
+ n.feed('<C-y>')
+ n.feed('<C-y>')
+
+ screen:expect({
+ grid = [[
+ 3 │3 v |
+ 4 │4 v |
+ 5 │5 |
+ 6 │6 |
+ 7 │{1:~ }|
+ 8 │{1:~ }|
+ 9 │{1:~ }|
+ 10 │{1:~ }|
+ ^11 │{1:~ }|
+ 12 │{1:~ }|
+ {3:[Scratch] }{2:[Scratch] }|
+ |
+ ]],
+ })
+ end)
+end)
generated by cgit (git 2.34.1) at 2025-04-28 19:22:09 +0000