feat(gotests): add generate all tests

docs(gotests): add generate all tests

README.md

···
 Minimalistic plugin for Go development in Neovim written in Lua.
 
 It's not an LSP tool, the main goal of this plugin add go tooling support in neovim.
+
 ## Install
 
 Pre-dependency: [go](https://github.com/golang/go) (tested on 1.17 and 1.18)
···
 
 ```vim
 :GoTestAdd
+```
+
+Generate all tests for all functions/methods in current file
+
+```vim
+:GoTestsAll
 ```
 
 7. Run `go generate` command

lua/gopher/gotests.lua

···
   add_test(cmd_args)
 end
 
+function M.all_tests(parallel)
+  local cmd_args = { "-all" }
+  if parallel then
+    table.insert(cmd_args, "-parallel")
+  end
+
+  add_test(cmd_args)
+end
+
 return M

lua/gopher/init.lua

···
 gopher.impl = require "gopher.impl"
 gopher.generate = require "gopher.gogenerate"
 gopher.test_add = gotests.one_test
+gopher.tests_all = gotests.all_tests
 
 return gopher

plugin/gopher.vim

···
 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=* GoMod :lua require"gopher".mod(<f-args>)
 command! -nargs=* GoGet :lua require"gopher".get(<f-args>)
 command! -nargs=* GoImpl :lua require"gopher".impl(<f-args>)