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https://github.com/neovim/neovim.git
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3fceb84560
The parent commit made a valiant effort to store "dict options" in their reified form, but this is more trouble than it's worth: - inconsistent model for developers to understand. - string lifetime issues (the "varp" convention is to pass around an aliased, long-lived option value). - lots of extra plumbing to deal with the 2 different option-storage paradigms.
178 lines
4.2 KiB
Lua
178 lines
4.2 KiB
Lua
local t = require('test.testutil')
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local n = require('test.functional.testnvim')()
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local describe, it, before_each = t.describe, t.it, t.before_each
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local command = n.command
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local clear = n.clear
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local eval = n.eval
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local eq = t.eq
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local pcall_err = t.pcall_err
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local feed = n.feed
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local scroll = function(direction)
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return n.request('nvim_input_mouse', 'wheel', direction, '', 0, 2, 2)
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end
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local screenrow = function()
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return n.call('screenrow')
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end
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local screencol = function()
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return n.call('screencol')
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end
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describe("'mousescroll'", function()
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local function should_fail(val, msg)
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eq(msg, pcall_err(command, 'set mousescroll=' .. val))
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end
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local function should_succeed(val)
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command('set mousescroll=' .. val)
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end
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before_each(function()
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clear()
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command('set nowrap lines=20 columns=20 virtualedit=all')
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feed('100o<Esc>50G10|')
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end)
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it('handles invalid values', function()
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-- empty string (no direction set)
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should_fail('', 'Vim(set):E474: Invalid argument: mousescroll=')
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-- unknown direction
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should_fail('foo:123', "Vim(set):E474: Unknown item 'foo': mousescroll=foo:123")
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-- integer overflow
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should_fail(
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'ver:99999999999999999999',
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"Vim(set):E474: 'ver' number is out of range: mousescroll=ver:99999999999999999999"
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)
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-- expected digit
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should_fail('ver:bar', "Vim(set):E474: 'ver' requires a number: mousescroll=ver:bar")
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-- negative count
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should_fail('ver:-1', "Vim(set):E474: 'ver' requires a number: mousescroll=ver:-1")
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end)
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it('handles valid values', function()
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should_succeed('hor:1,ver:1') -- both directions set
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should_succeed('hor:1') -- only horizontal
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should_succeed('ver:1') -- only vertical
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should_succeed('hor:0,ver:0') -- zero
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should_succeed('hor:2147483647') -- large count
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should_succeed('hor:1,hor:2') -- duplicate direction: last wins
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end)
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it('default set correctly', function()
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eq('ver:3,hor:6', eval('&mousescroll'))
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eq(10, screenrow())
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scroll('up')
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eq(13, screenrow())
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scroll('down')
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eq(10, screenrow())
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eq(10, screencol())
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scroll('right')
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eq(4, screencol())
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scroll('left')
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eq(10, screencol())
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end)
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it('vertical scrolling falls back to default value', function()
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command('set mousescroll=hor:1')
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eq(10, screenrow())
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scroll('up')
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eq(13, screenrow())
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end)
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it('horizontal scrolling falls back to default value', function()
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command('set mousescroll=ver:1')
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eq(10, screencol())
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scroll('right')
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eq(4, screencol())
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end)
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it('count of zero disables mouse scrolling', function()
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command('set mousescroll=hor:0,ver:0')
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eq(10, screenrow())
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scroll('up')
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eq(10, screenrow())
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scroll('down')
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eq(10, screenrow())
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eq(10, screencol())
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scroll('right')
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eq(10, screencol())
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scroll('left')
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eq(10, screencol())
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-- vertical scrolling is still disabled with non-zero 'scrolloff' value
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command('set scrolloff=1')
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eq(10, screenrow())
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scroll('up')
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eq(10, screenrow())
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scroll('down')
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eq(10, screenrow())
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-- also in insert mode
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feed('i')
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eq(10, screenrow())
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scroll('up')
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eq(10, screenrow())
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scroll('down')
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eq(10, screenrow())
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end)
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local test_vertical_scrolling = function()
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eq(10, screenrow())
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command('set mousescroll=ver:1')
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scroll('up')
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eq(11, screenrow())
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command('set mousescroll=ver:2')
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scroll('down')
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eq(9, screenrow())
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command('set mousescroll=ver:5')
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scroll('up')
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eq(14, screenrow())
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end
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it('controls vertical scrolling in normal mode', function()
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test_vertical_scrolling()
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end)
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it('controls vertical scrolling in insert mode', function()
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feed('i')
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test_vertical_scrolling()
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end)
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local test_horizontal_scrolling = function()
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eq(10, screencol())
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command('set mousescroll=hor:1')
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scroll('right')
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eq(9, screencol())
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command('set mousescroll=hor:3')
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scroll('right')
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eq(6, screencol())
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command('set mousescroll=hor:2')
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scroll('left')
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eq(8, screencol())
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end
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it('controls horizontal scrolling in normal mode', function()
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test_horizontal_scrolling()
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end)
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it('controls horizontal scrolling in insert mode', function()
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feed('i')
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test_horizontal_scrolling()
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end)
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end)
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