make server start to accept clean option and use it on tests

Author: joaopluigi

lua/eca/server.lua

@@ -98,7 +98,7 @@ end
 ---in testing
 ---@param opts? eca.ServerStartOpts
 function M:start(opts)
-  opts = opts or { initialize = true }
+  opts = vim.tbl_deep_extend("force", { initialize = true }, opts or {})
 
   local this_file = debug.getinfo(1, "S").source:sub(2)
   local proj_root = vim.fn.fnamemodify(this_file, ":p:h:h:h")
@@ -112,7 +112,7 @@ function M:start(opts)
 
   local lua_cmd = string.format("lua ServerPath.run(%s)", Utils.lua_quote(Config.server_path or ""))
 
-  local cmd = { nvim_exe, "--headless", "--noplugin", "-u", script_path, "-c", lua_cmd }
+  local cmd = { nvim_exe, "--headless", "--noplugin", (opts.clean and " --clean" or ""), "-u", script_path, "-c", lua_cmd }
 
   vim.system(cmd, { text = true }, function(out)
     if out.code ~= 0 then

tests/test_server_integration.lua

@@ -40,7 +40,7 @@ end
 T["server"] = MiniTest.new_set()
 
 T["server"]["start"] = function()
-  child.lua("_G.server:start()")
+  child.lua("_G.server:start({ clean = true })")
   child.lua([[
     _G.server_started = vim.wait(10000, function()
       return _G.server and _G.server:is_running()
@@ -52,7 +52,7 @@ T["server"]["start"] = function()
 end
 
 T["server"]["start without initialize"] = function()
-  child.lua("_G.server:start({ initialize = false })")
+  child.lua("_G.server:start({ clean = true, initialize = false })")
   child.lua([[
     _G.server_started = vim.wait(10000, function()
       return _G.server and _G.server:is_running()
@@ -67,7 +67,7 @@ T["server"]["start with inexistent path"] = function()
   child.lua([[
     Config = require("eca.config")
     Config.setup({ server_path = "non-existing-path" } )
-    _G.server:start()
+    _G.server:start({ clean = true })
   ]])
   child.lua([[
     _G.server_started = vim.wait(1000, function()