diff --git a/README.md b/README.md
index 190bad1..d5c4327 100644
--- a/README.md
+++ b/README.md
@@ -16,20 +16,23 @@ The plugin covers most features required for a gopher.
 - Load vscode launch configuration
 - Unit test: generate unit test framework with [gotests](https://github.com/cweill/gotests). Run test with
   richgo/ginkgo/go test
-- tag modify: Supports gomodifytags
-- Code format: Supports LSP format and GoFmt
+- Add and remove tag for struct with tag modify(gomodifytags)
+- Code format: Supports LSP format and GoFmt(with golines)
 - CodeLens : gopls codelens and codelens action support
 - Comments: Add autodocument for your package/function/struct/interface. This feature is unique and can help you suppress golint
   errors...
 - Go to alternative go file (between test and source)
 - Test with ginkgo, richgo inside floaterm (to enable floaterm, guihua.lua has to be installed)
 - Go 1.18 support, configure your go to `go1.18` in config
+- GoFixPlural, FixStruct, FxiSwitch, Add comment, IfErr, ModTidy, GoGet ... Most of the tools are built on top of
+treesitter AST or go AST. It is fast and accurate.
 
 ## Installation
 
 Use your favorite package manager to install. The dependency `treesitter` (and optionally, treesitter-objects)
 should be installed the first time you use it.
 Also Run `TSInstall go` to install the go parser if not installed yet.
+`sed` is recommand to run this plugin.
 
 ### [vim-plug](https://github.com/junegunn/vim-plug)
 
@@ -465,7 +468,7 @@ require('go').setup({
   fillstruct = 'gopls', -- can be nil (use fillstruct, slower) and gopls
   gofmt = 'gofumpt', --gofmt cmd,
   max_line_len = 120, -- max line length in goline format
-  tag_transform = false, -- tag_transfer  check gomodifytags for details
+  tag_transform = false, -- can be transform option("snakecase", "camelcase", etc) check gomodifytags for details and more options
   test_template = '', -- g:go_nvim_tests_template  check gotests for details
   test_template_dir = '', -- default to nil if not set; g:go_nvim_tests_template_dir  check gotests for details
   comment_placeholder = '' ,  -- comment_placeholder your cool placeholder e.g. ﳑ       
@@ -503,6 +506,7 @@ require('go').setup({
   build_tags = "tag1,tag2", -- set default build tags
   textobjects = true, -- enable default text jobects through treesittter-text-objects
   test_runner = 'go', -- richgo, go test, richgo, dlv, ginkgo
+  verbose_tests = true, -- set to add verbose flag to tests
   run_in_floaterm = false, -- set to true to run in float window. :GoTermClose closes the floatterm
                            -- float term recommand if you use richgo/ginkgo with terminal color
 })
diff --git a/doc/go.txt b/doc/go.txt
index faffcac..5f04e9f 100644
--- a/doc/go.txt
+++ b/doc/go.txt
@@ -312,6 +312,7 @@ You can setup go.nvim with following options:
   gopls_cmd = nil, --- you can provide gopls path and cmd if it not in PATH, e.g. cmd = {  "/home/ray/.local/nvim/data/lspinstall/go/gopls" }
   build_tags = "", --- you can provide extra build tags for tests or debugger
   test_runner = "go", -- richgo, go test, richgo, dlv, ginkgo
+  verbose_tests = true, -- set to add verbose flag to tests
   run_in_floaterm = false, -- set to true to run in float window.
 }
 
diff --git a/lua/go.lua b/lua/go.lua
index 937de63..d08547e 100644
--- a/lua/go.lua
+++ b/lua/go.lua
@@ -50,6 +50,7 @@ _GO_NVIM_CFG = {
   build_tags = "", --- you can provide extra build tags for tests or debugger
   textobjects = true, -- treesitter binding for text objects
   test_runner = "go", -- richgo, go test, richgo, dlv, ginkgo
+  verbose_tests = true, -- set to add verbose flag to tests
   run_in_floaterm = false, -- set to true to run in float window.
 }
 
@@ -131,7 +132,7 @@ function go.setup(cfg)
 
   -- e.g. GoTestFile unit
   vim.cmd([[command! -nargs=* GoTestFile    lua require('go.gotest').test_file(<f-args>)]])
-  vim.cmd([[command! -nargs=* GoTestPkg    lua require('go.gotest').test_package(<f-args>)]])
+  vim.cmd([[command! -nargs=* -complete=custom,v:lua.package.loaded.go.package_complete GoTestPkg lua require('go.gotest').test_package(<f-args>)]])
   vim.cmd([[command! -nargs=* GoAddTest      lua require("go.gotests").fun_test(<f-args>)]])
   vim.cmd([[command! -nargs=* GoAddExpTest   lua require("go.gotests").exported_test(<f-args>)]])
   vim.cmd([[command! -nargs=* GoAddAllTest   lua require("go.gotests").all_test(<f-args>)]])
diff --git a/lua/go/alt_getopt.lua b/lua/go/alt_getopt.lua
index 8f4c4d1..35a2823 100644
--- a/lua/go/alt_getopt.lua
+++ b/lua/go/alt_getopt.lua
@@ -159,6 +159,7 @@ function test_arg(arg)
   local optarg
   local optind
   arg = arg or { "-t", "-r", "-c", "path1", "-g", "unit,integration", "path" }
+  -- arg = arg or { "-t", "-r", "-c", "-g", "unit,integration" }
   opts, optind, optarg, unparsed = alt_getopt.get_ordered_opts(arg, "cg:hvo:n:rS:st", long_opts)
 
   print("ordered opts")
diff --git a/lua/go/gotest.lua b/lua/go/gotest.lua
index a0a2233..f24d7ec 100644
--- a/lua/go/gotest.lua
+++ b/lua/go/gotest.lua
@@ -78,13 +78,15 @@ local function run_test(path, args)
   local bench = false
   local optarg, optind, reminder = getopt.get_opts(args, short_opts, long_opts)
   if optarg["c"] then
-    path = "." .. sep .. vim.fn.expand("%:h") -- vim.fn.expand("%:p:h") can not resolve releative path
+    path = utils.rel_path() -- vim.fn.expand("%:p:h") can not resolve releative path
     compile = true
   end
   if optarg["b"] then
     bench = true
   end
-
+  if next(reminder) then
+    path = reminder[1]
+  end
   local test_runner = _GO_NVIM_CFG.go
   if _GO_NVIM_CFG.test_runner ~= test_runner then
     test_runner = _GO_NVIM_CFG.test_runner
@@ -94,12 +96,16 @@ local function run_test(path, args)
   local tags = get_build_tags(args)
 
   log(tags)
-  local cmd
+  local cmd = {}
   if _GO_NVIM_CFG.run_in_floaterm then
-    cmd = { test_runner, "test", "-v" }
-  else
-    cmd = { "-v" }
+    table.insert(cmd, test_runner)
+    table.insert(cmd, "test")
+  end
+
+  if _GO_NVIM_CFG.verbose_tests then
+    table.insert(cmd, "-v")
   end
+
   if not empty(tags) then
     cmd = vim.list_extend(cmd, tags)
   end
@@ -171,10 +177,8 @@ M.test_package = function(...)
   local args = { ... }
   log(args)
 
-  local repath = utils.rel_path() or ""
-
+  local repath = utils.rel_path() or "."
   local fpath = repath .. utils.sep() .. "..."
-
   utils.log("fpath: " .. fpath)
 
   -- args[#args + 1] = fpath
@@ -210,13 +214,17 @@ M.test_fun = function(...)
     end
   end
 
-  local cmd
+  local cmd = {}
   local run_in_floaterm = optarg["F"] or _GO_NVIM_CFG.run_in_floaterm
   if run_in_floaterm then
-    cmd = { test_runner, "test", "-v" }
-  else
-    cmd = { "-v" }
+    table.insert(cmd, test_runner)
+    table.insert(cmd, "test")
   end
+
+  if _GO_NVIM_CFG.verbose_tests then
+    table.insert(cmd, "-v")
+  end
+
   if not empty(tags) then
     cmd = vim.list_extend(cmd, tags)
   end
@@ -286,13 +294,16 @@ M.test_file = function(...)
 
   local relpath = utils.rel_path()
 
-  local cmd_args
-
+  local cmd_args = {}
   if run_in_floaterm then
-    cmd_args = { test_runner, "test", "-v" }
-  else
-    cmd_args = { "-v" }
+    table.insert(cmd_args, test_runner)
+    table.insert(cmd_args, "test")
+  end
+
+  if _GO_NVIM_CFG.verbose_tests then
+    table.insert(cmd_args, "-v")
   end
+
   if tags ~= nil and #tags > 1 then
     cmd_args = vim.list_extend(cmd_args, tags)
   end
diff --git a/lua/go/health.lua b/lua/go/health.lua
index b649d3a..a2da4dd 100644
--- a/lua/go/health.lua
+++ b/lua/go/health.lua
@@ -32,6 +32,12 @@ local function binary_check()
   if no_err then
     ok("All binaries installed")
   end
+
+  if vim.fn.executable('sed') == 1 then
+    info("sed installed.")
+  else
+    warn("sed is not installed.")
+  end
 end
 
 local function plugin_check()
diff --git a/lua/go/tags.lua b/lua/go/tags.lua
index 7e0a48e..e442851 100644
--- a/lua/go/tags.lua
+++ b/lua/go/tags.lua
@@ -43,8 +43,8 @@ tags.modify = function(...)
     table.insert(setup, struct_name)
   end
   if transform then
-    table.insert(setup.args, "-transform")
-    table.insert(setup.args, transform)
+    table.insert(setup, "-transform")
+    table.insert(setup, transform)
   end
   local arg = { ... }
   for i, v in ipairs(arg) do
diff --git a/lua/go/utils.lua b/lua/go/utils.lua
index 16ce46b..6ef0040 100644
--- a/lua/go/utils.lua
+++ b/lua/go/utils.lua
@@ -415,10 +415,11 @@ end
 
 function util.rel_path()
   local fpath = vim.fn.expand("%:p:h")
+
   local workfolders = vim.lsp.buf.list_workspace_folders()
 
-  if workfolder ~= nil then
-    fpath = "." .. fpath:sub(#workfolder + 1)
+  if workfolders ~= nil and next(workfolders) then
+    fpath = "." .. fpath:sub(#workfolders[1] + 1)
   end
   return fpath
 end
diff --git a/samplevimrc.vim b/samplevimrc.vim
index 88add04..89c19fc 100644
--- a/samplevimrc.vim
+++ b/samplevimrc.vim
@@ -41,6 +41,7 @@ require('go').setup({
   dap_debug_vt = true, -- set to true to enable dap virtual text
 
   test_runner = 'richgo', -- richgo, go test, richgo, dlv, ginkgo
+  verbose_tests = true, -- set to add verbose flag to tests
   run_in_floaterm = true -- set to true to run in float window.
 })
 EOF