diff --git a/lua/gopher/gotests.lua b/lua/gopher/gotests.lua
index ce6853b..a2386d8 100644
--- a/lua/gopher/gotests.lua
+++ b/lua/gopher/gotests.lua
@@ -1,19 +1,17 @@
 local c = require("gopher.config").commands
-local u = require "gopher._utils"
 local ts_utils = require "gopher._utils.ts"
 local r = require "gopher._utils.runner"
 local gotests = {}
 
 ---@param args table
 local function add_test(args)
-  local fpath = vim.fn.expand "%" ---@diagnostic disable-line: missing-parameter
   table.insert(args, "-w")
-  table.insert(args, fpath)
+  table.insert(args, vim.fn.expand "%")
 
-  return r.spawn(c.gotests, {
+  return r.sync(c.gotests, {
     args = args,
-    on_exit = function(ok, data)
-      if not ok then
+    on_exit = function(data, status)
+      if not status == 0 then
         vim.notify("gotests failed: " .. data, vim.log.levels.ERROR)
         return
       end
@@ -24,43 +22,24 @@ local function add_test(args)
 end
 
 ---generate unit test for one function
----@param parallel boolean
-function gotests.func_test(parallel)
+function gotests.func_test()
   local ns = ts_utils.get_func_method_node_at_pos(unpack(vim.api.nvim_win_get_cursor(0)))
   if ns == nil or ns.name == nil then
-    u.deferred_notify("cursor on func/method and execute the command again", vim.log.levels.INFO)
+    vim.notify("cursor on func/method and execute the command again", vim.log.levels.INFO)
     return
   end
 
-  local cmd_args = { "-only", ns.name }
-  if parallel then
-    table.insert(cmd_args, "-parallel")
-  end
-
-  add_test(cmd_args)
+  add_test { "-only", ns.name }
 end
 
 ---generate unit tests for all functions in current file
----@param parallel boolean
-function gotests.all_tests(parallel)
-  local cmd_args = { "-all" }
-  if parallel then
-    table.insert(cmd_args, "-parallel")
-  end
-
-  add_test(cmd_args)
+function gotests.all_tests()
+  add_test { "-all" }
 end
 
 ---generate unit tests for all exported functions
----@param parallel boolean
-function gotests.all_exported_tests(parallel)
-  local cmd_args = {}
-  if parallel then
-    table.insert(cmd_args, "-parallel")
-  end
-
-  table.insert(cmd_args, "-exported")
-  add_test(cmd_args)
+function gotests.all_exported_tests()
+  add_test { "-exported" }
 end
 
 return gotests
diff --git a/plugin/gopher.vim b/plugin/gopher.vim
index bdffbbe..f54d5dd 100644
--- a/plugin/gopher.vim
+++ b/plugin/gopher.vim
@@ -1,8 +1,8 @@
 command! -nargs=* GoTagAdd :lua require"gopher".tags_add(<f-args>)
 command! -nargs=* GoTagRm :lua require"gopher".tags_rm(<f-args>)
-command! -nargs=* GoTestAdd :lua require"gopher".test_add(<f-args>)
-command! -nargs=* GoTestsAll :lua require"gopher".tests_all(<f-args>)
-command! -nargs=* GoTestsExp :lua require"gopher".test_exported(<f-args>)
+command! GoTestAdd :lua require"gopher".test_add()
+command! GoTestsAll :lua require"gopher".tests_all()
+command! GoTestsExp :lua require"gopher".test_exported()
 command! -nargs=* GoMod :lua require"gopher".mod(<f-args>)
 command! -nargs=* GoGet :lua require"gopher".get(<f-args>)
 command! -nargs=* GoWork :lua require"gopher".work(<f-args>)