test(git): cover repo caching and :G completion dispatch

2026-05-07 16:47:22 +02:00
parent c07e9c8de3
commit 50b05b0c81
4 changed files with 308 additions and 50 deletions
@@ -0,0 +1,69 @@
+local t = require("test")
+
+local M = {}
+
+---@param dir string
+---@vararg string
+---@return vim.SystemCompleted
+function M.git(dir, ...)
+    local r = vim.system({ "git", ... }, { cwd = dir, text = true }):wait()
+    if r.code ~= 0 then
+        error(
+            string.format(
+                "git %s failed: %s",
+                table.concat({ ... }, " "),
+                vim.trim(r.stderr or "")
+            ),
+            2
+        )
+    end
+    return r
+end
+
+---Build a temporary git repo with the given committed contents and queue
+---cleanup (stop fs watchers, drop test buffers, delete the dir). When
+---`opts.cd` is true, also `cd` into the repo and restore the previous
+---working directory on cleanup.
+---@param files table<string, string>?
+---@param opts { cd: boolean? }?
+---@return string dir
+function M.make_repo(files, opts)
+    local dir = vim.fn.tempname()
+    vim.fn.mkdir(dir, "p")
+    M.git(dir, "init", "-q", "-b", "main")
+    M.git(dir, "config", "user.email", "t@t.com")
+    M.git(dir, "config", "user.name", "t")
+    if files and next(files) then
+        for path, content in pairs(files) do
+            t.write(dir, path, content)
+        end
+        M.git(dir, "add", ".")
+        M.git(dir, "commit", "-q", "-m", "init")
+    end
+    local prev_cwd
+    if opts and opts.cd then
+        prev_cwd = vim.fn.getcwd()
+        vim.cmd.cd(dir)
+    end
+    t.defer(function()
+        if prev_cwd then
+            pcall(vim.cmd.cd, prev_cwd)
+        else
+            pcall(vim.cmd.cd, "/tmp")
+        end
+        pcall(function()
+            require("git.repo").stop_all()
+        end)
+        vim.wait(60)
+        for _, b in ipairs(vim.api.nvim_list_bufs()) do
+            local name = vim.api.nvim_buf_get_name(b)
+            if name:find(dir, 1, true) or name:match("^git[a-z]*://") then
+                pcall(vim.api.nvim_buf_delete, b, { force = true })
+            end
+        end
+        vim.fn.delete(dir, "rf")
+    end)
+    return dir
+end
+
+return M