test: Eliminate plugin/helpers.lua

test/functional/plugin/health_spec.lua

@@ -1,6 +1,5 @@
 local helpers = require('test.functional.helpers')(after_each)
 local Screen = require('test.functional.ui.screen')
-local plugin_helpers = require('test.functional.plugin.helpers')
 
 local clear = helpers.clear
 local curbuf_contents = helpers.curbuf_contents
@@ -41,7 +40,7 @@ end)
 
 describe('health.vim', function()
   before_each(function()
-    plugin_helpers.reset()
+    clear{args={'-u', 'NORC'}}
     -- Provides functions:
     --    health#broken#check()
     --    health#success1#check()

test/functional/plugin/helpers.lua

@@ -1,41 +0,0 @@
-local paths = require('test.config.paths')
-
-local helpers = require('test.functional.helpers')(nil)
-local spawn, set_session, nvim_prog, merge_args =
-  helpers.spawn, helpers.set_session, helpers.nvim_prog, helpers.merge_args
-
-local additional_cmd = ''
-
-local function nvim_argv(shada_file)
-  local rtp_value = ('\'%s/runtime\''):format(
-      paths.test_source_path:gsub('\'', '\'\''))
-  local nvim_args = {nvim_prog, '-u', 'NORC', '-i', shada_file or 'NONE', '-N',
-                     '--cmd', 'set shortmess+=I background=light noswapfile belloff= noshowcmd noruler',
-                     '--cmd', 'let &runtimepath=' .. rtp_value,
-                     '--cmd', additional_cmd,
-                     '--embed', '--headless'}
-  if helpers.prepend_argv then
-    return merge_args(helpers.prepend_argv, nvim_args)
-  else
-    return nvim_args
-  end
-end
-
-local session = nil
-
-local function reset(...)
-  if session then
-    session:close()
-  end
-  session = spawn(nvim_argv(...))
-  set_session(session)
-end
-
-local function set_additional_cmd(s)
-  additional_cmd = s
-end
-
-return {
-  reset=reset,
-  set_additional_cmd=set_additional_cmd,
-}

test/functional/plugin/matchparen_spec.lua

@@ -1,19 +1,17 @@
 local helpers = require('test.functional.helpers')(after_each)
-local plugin_helpers = require('test.functional.plugin.helpers')
 local Screen = require('test.functional.ui.screen')
 
+local clear = helpers.clear
 local command = helpers.command
 local meths = helpers.meths
 local feed = helpers.feed
 local eq = helpers.eq
 
-local reset = plugin_helpers.reset
-
 describe('matchparen', function()
   local screen
 
   before_each(function()
-    reset()
+    clear{args={'-u', 'NORC'}}
     screen = Screen.new(20,5)
     screen:attach()
     screen:set_default_attr_ids( {

test/functional/plugin/msgpack_spec.lua

@@ -1,15 +1,15 @@
 local helpers = require('test.functional.helpers')(after_each)
+local clear = helpers.clear
 local meths = helpers.meths
 local eq, nvim_eval, nvim_command, exc_exec =
   helpers.eq, helpers.eval, helpers.command, helpers.exc_exec
 local ok = helpers.ok
 local NIL = helpers.NIL
 
-local plugin_helpers = require('test.functional.plugin.helpers')
-local reset = plugin_helpers.reset
-
 describe('autoload/msgpack.vim', function()
-  before_each(reset)
+  before_each(function()
+    clear{args={'-u', 'NORC'}}
+  end)
 
   local sp = function(typ, val)
     return ('{"_TYPE": v:msgpack_types.%s, "_VAL": %s}'):format(typ, val)

test/functional/plugin/shada_spec.lua

@@ -1,4 +1,6 @@
+local paths = require('test.config.paths')
 local helpers = require('test.functional.helpers')(after_each)
+local clear = helpers.clear
 local eq, nvim_eval, nvim_command, nvim, exc_exec, funcs, nvim_feed, curbuf =
   helpers.eq, helpers.eval, helpers.command, helpers.nvim, helpers.exc_exec,
   helpers.funcs, helpers.feed, helpers.curbuf
@@ -7,12 +9,21 @@ local read_file = helpers.read_file
 
 local mpack = require('mpack')
 
-local plugin_helpers = require('test.functional.plugin.helpers')
-local reset = plugin_helpers.reset
-
 local shada_helpers = require('test.functional.shada.helpers')
 local get_shada_rw = shada_helpers.get_shada_rw
 
+local function reset(shada_file)
+  -- TODO(justinmk): why is this needed?
+  local rtp_value = ('\'%s/runtime\''):format(
+      paths.test_source_path:gsub('\'', '\'\''))
+  clear{args_rm={'-u', '-i'},
+        args={'-u', 'NORC',
+              '-i', shada_file or 'NONE',
+              '--cmd', 'set laststatus&',
+              '--cmd', 'let &runtimepath='..rtp_value,
+        }}
+end
+
 local mpack_eq = function(expected, mpack_result)
   local mpack_keys = {'type', 'timestamp', 'length', 'value'}