Update GoAddTests and allow vim command override

lua/go.lua

@@ -1,5 +1,4 @@
 -- some of commands extracted from gopher.vim
-
 local go = {}
 
 function go.setup(cfg)
@@ -13,9 +12,8 @@ function go.setup(cfg)
   vim.g.go_nvim_verbose = cfg.verbose or false -- output loginf in messages
   vim.cmd("command! Gmake silent lua require'go.asyncmake'.make()")
 
-  vim.cmd('command Gofmt lua require("go.format").gofmt()')
-  vim.cmd('command Goimport lua require("go.format").goimport()')
-
+  vim.cmd('command! Gofmt lua require("go.format").gofmt()')
+  vim.cmd('command! Goimport lua require("go.format").goimport()')
 
   vim.cmd([[command GoBuild :setl makeprg=go\ build | :Gmake]])
   vim.cmd([[command GoGenerate  :setl makeprg=go\ generate | :Gmake]])
@@ -25,21 +23,21 @@ function go.setup(cfg)
   vim.cmd([[command GoTest :setl makeprg=go\ test\ ./... | :Gmake]])
   vim.cmd([[command GoTestCompile  setl makeprg=go\ build | :Gmake]])
 
-  vim.cmd([[command GoAddTest lua require("go.gotests").fun_test()]])
-  vim.cmd([[command GoAddExpTest lua require("go.gotests").exported_test()]])
-  vim.cmd([[command GoAddAllTest lua require("go.gotests").all_test()]])
+  vim.cmd([[command! GoAddTest lua require("go.gotests").fun_test()]])
+  vim.cmd([[command! GoAddExpTest lua require("go.gotests").exported_test()]])
+  vim.cmd([[command! GoAddAllTest lua require("go.gotests").all_test()]])
 
   vim.cmd([[command! -nargs=* GoAddTag lua require("go.tags").add(<f-args>)]])
   vim.cmd([[command! -nargs=* GoRmTag lua require("go.tags").rm(<f-args>)]])
-  vim.cmd([[command           GoClearTag lua require("go.tags").clear()]])
-  vim.cmd([[command           GoCmt lua require("go.comment").gen()]])
-  vim.cmd([[command           GoRename lua require("go.rename").run()]])
-  vim.cmd([[command           Giferr lua require("go.iferr").run()]])
-  vim.cmd([[command           Gfstruct lua require("go.reftool").fillstruct()]])
-  vim.cmd([[command           Gfswitch lua require("go.reftool").fillstruct()]])
+  vim.cmd([[command!           GoClearTag lua require("go.tags").clear()]])
+  vim.cmd([[command!           GoCmt lua require("go.comment").gen()]])
+  vim.cmd([[command!           GoRename lua require("go.rename").run()]])
+  vim.cmd([[command!           Giferr lua require("go.iferr").run()]])
+  vim.cmd([[command!           Gfstruct lua require("go.reftool").fillstruct()]])
+  vim.cmd([[command!           Gfswitch lua require("go.reftool").fillstruct()]])
 
   -- vim.cmd([[command GoLint :compiler golangci-lint run | :Gmake]])
-  vim.cmd([[command GoLint :setl makeprg=golangci-lint\ run\ --out-format\ tab | :Gmake]])
+  vim.cmd([[command! GoLint :setl makeprg=golangci-lint\ run\ --out-format\ tab | :Gmake]])
   vim.cmd("au FileType go au QuickFixCmdPost  [^l]* nested cwindow")
   vim.cmd("au FileType go au QuickFixCmdPost    l* nested lwindow")
 

lua/go/gotests.lua

@@ -4,21 +4,18 @@ local ut = {}
 local gotests = "gotests"
 local test_dir = vim.g.go_nvim_test_dir or ""
 local test_template = vim.go_nvim_test_template or ""
-local utils = require("go").utils
+local utils = require("go.utils")
 local run = function(setup)
   print(vim.inspect(setup))
-  local j =
-    vim.fn.jobstart(
-    setup,
-    {
+  local j = vim.fn.jobstart(setup, {
     on_stdout = function(jobid, data, event)
       print("unit tests generate " .. vim.inspect(data))
     end,
     on_stderr = function(_, data, _)
-        print("failed to generate tests for " .. vim.inspect(setup) .. "error: " .. vim.inspect(data))
+      print("generate tests finished with message: " .. vim.inspect(setup) .. "error: "
+                .. vim.inspect(data))
     end
-    }
-  )
+  })
 end
 
 local add_test = function(args)