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fix(--headless): do not block on press-enter prompts when no UI

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This commit fixes #9358, where emitting multiple messages with 'echo' or
a single one with 'echom' or 'echoerr' would result in a press-enter
prompt that couldn't be dismissed by pressing enter.

This requires adapting a few tests to spawn a UI before testing whether
press-enter prompts are blocking.

It also fixes #11718, as when combined with #15910 it enables making
sure that neovim never blocks and emits messages on startup.
This commit is contained in:
glacambre
2022-01-25 07:59:17 +01:00
parent 806a7c976d
commit 5b34c2ab73
2 changed files with 19 additions and 0 deletions
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15
test/functional/api/vim_spec.lua
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@@ -333,6 +333,7 @@ describe('API', function()
describe('nvim_command_output', function()
it('does not induce hit-enter prompt', function()
nvim("ui_attach", 80, 20, {})
-- Induce a hit-enter prompt use nvim_input (non-blocking).
nvim('command', 'set cmdheight=1')
nvim('input', [[:echo "hi\nhi2"<CR>]])
@@ -1093,7 +1094,20 @@ describe('API', function()
eq({mode='n', blocking=false}, nvim("get_mode"))
end)
it("during press-enter prompt without UI returns blocking=false", function()
eq({mode='n', blocking=false}, nvim("get_mode"))
command("echom 'msg1'")
command("echom 'msg2'")
command("echom 'msg3'")
command("echom 'msg4'")
command("echom 'msg5'")
eq({mode='n', blocking=false}, nvim("get_mode"))
nvim("input", ":messages<CR>")
eq({mode='n', blocking=false}, nvim("get_mode"))
end)
it("during press-enter prompt returns blocking=true", function()
nvim("ui_attach", 80, 20, {})
eq({mode='n', blocking=false}, nvim("get_mode"))
command("echom 'msg1'")
command("echom 'msg2'")
@@ -1117,6 +1131,7 @@ describe('API', function()
-- TODO: bug #6247#issuecomment-286403810
it("batched with input", function()
nvim("ui_attach", 80, 20, {})
eq({mode='n', blocking=false}, nvim("get_mode"))
command("echom 'msg1'")
command("echom 'msg2'")