canola.nvim/tests/altbuf_spec.lua
Barrett Ruth 86f553cd0a
build: replace luacheck with selene, add nix devshell and pre-commit (#20)
* build: replace luacheck with selene

Problem: luacheck is unmaintained (last release 2018) and required
suppressing four warning classes to avoid false positives. It also
lacks first-class vim/neovim awareness.

Solution: switch to selene with std='vim' for vim-aware linting.
Replace the luacheck CI job with selene, update the Makefile lint
target, and delete .luacheckrc.

* build: add nix devshell and pre-commit hooks

Problem: oil.nvim had no reproducible dev environment. The .envrc
set up a Python venv for the now-removed docgen pipeline, and there
were no pre-commit hooks for local formatting checks.

Solution: add flake.nix with stylua, selene, and prettier in the
devshell. Replace the stale Python .envrc with 'use flake'. Add
.pre-commit-config.yaml with stylua and prettier hooks matching
other plugins in the repo collection.

* fix: format with stylua

* build(selene): configure lints and add inline suppressions

Problem: selene fails on 5 errors and 3 warnings from upstream code
patterns that are intentional (mixed tables in config API, unused
callback parameters, identical if branches for readability).

Solution: globally allow mixed_table and unused_variable (high volume,
inherent to the codebase design). Add inline selene:allow directives
for the 8 remaining issues: if_same_then_else (4), mismatched_arg_count
(1), empty_if (2), global_usage (1). Remove .envrc from tracking.

* build: switch typecheck action to mrcjkb/lua-typecheck-action

Problem: oil.nvim used stevearc/nvim-typecheck-action, which required
cloning the action repo locally for the Makefile lint target. All
other plugins in the collection use mrcjkb/lua-typecheck-action.

Solution: swap to mrcjkb/lua-typecheck-action@v0 for consistency.
Remove the nvim-typecheck-action git clone from the Makefile and
.gitignore. Drop LuaLS from the local lint target since it requires
a full language server install — CI handles it.
2026-02-21 23:52:27 -05:00

157 lines
5.8 KiB
Lua

require('plenary.async').tests.add_to_env()
local fs = require('oil.fs')
local oil = require('oil')
local test_util = require('tests.test_util')
a.describe('Alternate buffer', function()
after_each(function()
test_util.reset_editor()
end)
a.it('sets previous buffer as alternate', function()
vim.cmd.edit({ args = { 'foo' } })
oil.open()
test_util.wait_for_autocmd({ 'User', pattern = 'OilEnter' })
vim.cmd.edit({ args = { 'bar' } })
assert.equals('foo', vim.fn.expand('#'))
end)
a.it('sets previous buffer as alternate when editing url file', function()
vim.cmd.edit({ args = { 'foo' } })
oil.open()
test_util.wait_for_autocmd({ 'User', pattern = 'OilEnter' })
local readme = fs.join(vim.fn.getcwd(), 'README.md')
vim.cmd.edit({ args = { 'oil://' .. fs.os_to_posix_path(readme) } })
-- We're gonna jump around to 2 different buffers
test_util.wait_for_autocmd('BufEnter')
test_util.wait_for_autocmd('BufEnter')
assert.equals(readme, vim.api.nvim_buf_get_name(0))
assert.equals('foo', vim.fn.expand('#'))
end)
a.it('sets previous buffer as alternate when editing oil://', function()
vim.cmd.edit({ args = { 'foo' } })
vim.cmd.edit({ args = { 'oil://' .. fs.os_to_posix_path(vim.fn.getcwd()) } })
test_util.wait_for_autocmd({ 'User', pattern = 'OilEnter' })
vim.cmd.edit({ args = { 'bar' } })
assert.equals('foo', vim.fn.expand('#'))
end)
a.it('preserves alternate buffer if editing the same file', function()
vim.cmd.edit({ args = { 'foo' } })
vim.cmd.edit({ args = { 'bar' } })
oil.open()
test_util.wait_for_autocmd({ 'User', pattern = 'OilEnter' })
vim.cmd.edit({ args = { 'bar' } })
assert.equals('foo', vim.fn.expand('#'))
end)
a.it('preserves alternate buffer if discarding changes', function()
vim.cmd.edit({ args = { 'foo' } })
vim.cmd.edit({ args = { 'bar' } })
oil.open()
test_util.wait_for_autocmd({ 'User', pattern = 'OilEnter' })
oil.close()
assert.equals('bar', vim.fn.expand('%'))
assert.equals('foo', vim.fn.expand('#'))
end)
a.it('sets previous buffer as alternate after multi-dir hops', function()
vim.cmd.edit({ args = { 'foo' } })
oil.open()
test_util.wait_for_autocmd({ 'User', pattern = 'OilEnter' })
oil.open()
test_util.wait_for_autocmd({ 'User', pattern = 'OilEnter' })
oil.open()
test_util.wait_for_autocmd({ 'User', pattern = 'OilEnter' })
oil.open()
test_util.wait_for_autocmd({ 'User', pattern = 'OilEnter' })
vim.cmd.edit({ args = { 'bar' } })
assert.equals('foo', vim.fn.expand('#'))
end)
a.it('sets previous buffer as alternate when inside oil buffer', function()
vim.cmd.edit({ args = { 'foo' } })
oil.open()
test_util.wait_for_autocmd({ 'User', pattern = 'OilEnter' })
assert.equals('foo', vim.fn.expand('#'))
vim.cmd.edit({ args = { 'bar' } })
assert.equals('foo', vim.fn.expand('#'))
oil.open()
assert.equals('bar', vim.fn.expand('#'))
end)
a.it('preserves alternate when traversing oil dirs', function()
vim.cmd.edit({ args = { 'foo' } })
oil.open()
test_util.wait_for_autocmd({ 'User', pattern = 'OilEnter' })
assert.equals('foo', vim.fn.expand('#'))
vim.wait(1000, function()
return oil.get_cursor_entry()
end, 10)
vim.api.nvim_win_set_cursor(0, { 1, 1 })
oil.select()
test_util.wait_for_autocmd({ 'User', pattern = 'OilEnter' })
assert.equals('foo', vim.fn.expand('#'))
end)
a.it('preserves alternate when opening preview', function()
vim.cmd.edit({ args = { 'foo' } })
oil.open()
test_util.wait_for_autocmd({ 'User', pattern = 'OilEnter' })
assert.equals('foo', vim.fn.expand('#'))
vim.wait(1000, function()
return oil.get_cursor_entry()
end, 10)
vim.api.nvim_win_set_cursor(0, { 1, 1 })
oil.open_preview()
test_util.wait_for_autocmd({ 'User', pattern = 'OilEnter' })
assert.equals('foo', vim.fn.expand('#'))
end)
a.describe('floating window', function()
a.it('sets previous buffer as alternate', function()
vim.cmd.edit({ args = { 'foo' } })
oil.open_float()
test_util.wait_for_autocmd({ 'User', pattern = 'OilEnter' })
-- This is lazy, but testing the actual select logic is more difficult. We can simply
-- replicate it by closing the current window and then doing the edit
vim.api.nvim_win_close(0, true)
vim.cmd.edit({ args = { 'bar' } })
assert.equals('foo', vim.fn.expand('#'))
end)
a.it('preserves alternate buffer if editing the same file', function()
vim.cmd.edit({ args = { 'foo' } })
vim.cmd.edit({ args = { 'bar' } })
oil.open_float()
test_util.wait_for_autocmd({ 'User', pattern = 'OilEnter' })
-- This is lazy, but testing the actual select logic is more difficult. We can simply
-- replicate it by closing the current window and then doing the edit
vim.api.nvim_win_close(0, true)
vim.cmd.edit({ args = { 'bar' } })
assert.equals('foo', vim.fn.expand('#'))
end)
a.it('preserves alternate buffer if discarding changes', function()
vim.cmd.edit({ args = { 'foo' } })
vim.cmd.edit({ args = { 'bar' } })
oil.open_float()
test_util.wait_for_autocmd({ 'User', pattern = 'OilEnter' })
oil.close()
assert.equals('foo', vim.fn.expand('#'))
end)
a.it('preserves alternate when traversing to a new file', function()
vim.cmd.edit({ args = { 'foo' } })
oil.open_float()
test_util.wait_for_autocmd({ 'User', pattern = 'OilEnter' })
assert.equals('foo', vim.fn.expand('#'))
test_util.feedkeys({ '/LICENSE<CR>' }, 10)
oil.select()
test_util.wait_for_autocmd('BufEnter')
assert.equals('LICENSE', vim.fn.expand('%:.'))
assert.equals('foo', vim.fn.expand('#'))
end)
end)
end)