feat: add Neovim agent review workflow

tests/neovim-review.lua

@@ -0,0 +1,53 @@
+-- Run with the configured Neovim, using the same headless invocation as neovim-ergonomics.lua.
+assert(package.loaded["diffview"] == nil, "Diffview should load on demand")
+vim.cmd("doautocmd VimEnter")
+local root = vim.fn.tempname() .. " review"
+vim.fn.mkdir(root, "p")
+local function git(...)
+  local result = vim.system({ "git", "-C", root, ... }, { text = true }):wait()
+  assert(result.code == 0, result.stderr)
+end
+local file = root .. "/tracked.txt"
+git("init", "--quiet")
+vim.fn.writefile({ "original" }, file)
+git("add", ".")
+git("-c", "user.name=Review Test", "-c", "[email protected]", "commit", "--quiet", "-m", "Baseline")
+vim.cmd.edit(vim.fn.fnameescape(file))
+assert(
+  vim.wait(5000, function()
+    return vim.fn.maparg(" gs", "n") ~= ""
+  end),
+  "Gitsigns should attach to the tracked file"
+)
+
+vim.fn.writefile({ "staged change" }, file)
+git("add", "tracked.txt")
+vim.fn.writefile({ "unstaged change after staging" }, file)
+vim.fn.writefile({ "new file" }, root .. "/untracked.txt")
+vim.api.nvim_exec_autocmds("FocusGained", { modeline = false })
+vim.api.nvim_feedkeys(" gd", "xt", false)
+assert(package.loaded["diffview"] ~= nil, "Review shortcut should load Diffview")
+local view = require("diffview.lib").get_current_view()
+assert(view, "Review shortcut should open a view even when cwd is outside the repository")
+assert(
+  vim.wait(5000, function()
+    return #view.files.working == 2 and #view.files.staged == 1 and view.cur_entry and view.cur_entry.opened
+  end),
+  "Review should include the tracked and untracked files"
+)
+local refreshed = false
+view.emitter:on("file_open_post", function()
+  refreshed = true
+end)
+vim.cmd("DiffviewRefresh")
+assert(
+  vim.wait(5000, function()
+    return refreshed
+  end),
+  "Refresh should finish before closing the view"
+)
+vim.cmd("DiffviewClose")
+assert(require("diffview.lib").get_current_view() == nil)
+vim.cmd("%bwipeout!")
+vim.fn.delete(root, "rf")
+print("Neovim agent review smoke check passed")