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cb58999007
This ameliorates use-cases like:
:!cat foo.txt
:make
where the user is interested in the last few lines of output.
Try these shell-based ex-commands before/after this commit:
:grep -r '' *
:make
:!yes
:!grep -r '' *
:!git grep ''
:!cat foo
:!echo foo
:!while true; do date; done
:!for i in `seq 1 20000`; do echo XXXXXXXXXX $i; done
In all cases the last few lines of the command should always be shown,
regardless of where throttling was triggered.
64 lines
2.6 KiB
Lua
64 lines
2.6 KiB
Lua
local session = require('test.functional.helpers')(after_each)
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local child_session = require('test.functional.terminal.helpers')
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if session.pending_win32(pending) then return end
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describe("shell command :!", function()
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local screen
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before_each(function()
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session.clear()
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screen = child_session.screen_setup(0, '["'..session.nvim_prog..
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'", "-u", "NONE", "-i", "NONE", "--cmd", "set noswapfile"]')
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screen:expect([[
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{1: } |
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{4:~ }|
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{4:~ }|
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{4:~ }|
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{5:[No Name] }|
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{3:-- TERMINAL --} |
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]])
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end)
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after_each(function()
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child_session.feed_data("\3") -- Ctrl-C
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screen:detach()
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end)
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it("displays output even without LF/EOF. #4646 #4569 #3772", function()
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-- NOTE: We use a child nvim (within a :term buffer)
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-- to avoid triggering a UI flush.
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child_session.feed_data(":!printf foo; sleep 200\n")
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screen:expect([[
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{4:~ }|
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{4:~ }|
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{5:[No Name] }|
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:!printf foo; sleep 200 |
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foo |
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{3:-- TERMINAL --} |
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]])
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end)
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it("throttles shell-command output greater than ~10KB", function()
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screen.timeout = 20000 -- Avoid false failure on slow systems.
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child_session.feed_data(
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":!for i in $(seq 2 3000); do echo XXXXXXXXXX $i; done\n")
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-- If we observe any line starting with a dot, then throttling occurred.
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screen:expect("\n.", nil, nil, nil, true)
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-- Final chunk of output should always be displayed, never skipped.
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-- (Throttling is non-deterministic, this test is merely a sanity check.)
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screen:expect([[
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XXXXXXXXXX 2996 |
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XXXXXXXXXX 2997 |
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XXXXXXXXXX 2998 |
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XXXXXXXXXX 2999 |
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XXXXXXXXXX 3000 |
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{10:Press ENTER or type command to continue}{1: } |
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{3:-- TERMINAL --} |
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]])
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end)
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end)
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