test: reorg #15698

Problem:
Subdirectories like "visual", "insert", "normal" encourage people to
separate *related* tests for no good reason.  Typically the _mode_ is
not the relevant topic of a test (and when it is, _then_ create
an appropriate describe() or it()).

Solution:
- Delete the various `test/functional/<mode>/` subdirectories, move
  their tests to more meaningful topics.
- Rename `…/normal/` to `…/editor/`.
  - Move or merge `…/visual/*` and `…/insert/*` tests into here where
    appropriate.
- Rename `…/eval/` to `…/vimscript/`.
  - Move `…/viml/*` into here also.

* test(reorg): insert/* => editor/mode_insert_spec.lua
* test(reorg): cmdline/* => editor/mode_cmdline_spec.lua
* test(reorg): eval core tests => eval_spec.lua

1 files changed, 63 insertions, 0 deletions

diff --git a/test/functional/autocmd/focus_spec.lua b/test/functional/autocmd/focus_spec.lua
new file mode 100644
index 0000000000..3f9a0ad09b
--- /dev/null
+++ b/test/functional/autocmd/focus_spec.lua
@@ -0,0 +1,63 @@
+local helpers = require('test.functional.helpers')(after_each)
+local thelpers = require('test.functional.terminal.helpers')
+local lfs = require('lfs')
+local clear = helpers.clear
+local nvim_prog = helpers.nvim_prog
+local feed_command = helpers.feed_command
+local feed_data = thelpers.feed_data
+
+if helpers.pending_win32(pending) then return end
+
+describe('autoread TUI FocusGained/FocusLost', function()
+  local f1 = 'xtest-foo'
+  local screen
+
+  before_each(function()
+    clear()
+    screen = thelpers.screen_setup(0, '["'..nvim_prog
+      ..'", "-u", "NONE", "-i", "NONE", "--cmd", "set noswapfile noshowcmd noruler"]')
+  end)
+
+  teardown(function()
+    os.remove(f1)
+  end)
+
+  it('external file change', function()
+    local path = f1
+    local expected_addition = [[
+    line 1
+    line 2
+    line 3
+    line 4
+    ]]
+
+    helpers.write_file(path, '')
+    lfs.touch(path, os.time() - 10)
+    feed_command('edit '..path)
+    feed_data('\027[O')
+
+    screen:expect{grid=[[
+      {1: }                                                 |
+      {4:~                                                 }|
+      {4:~                                                 }|
+      {4:~                                                 }|
+      {5:xtest-foo                                         }|
+      :edit xtest-foo                                   |
+      {3:-- TERMINAL --}                                    |
+    ]]}
+
+    helpers.write_file(path, expected_addition)
+
+    feed_data('\027[I')
+
+    screen:expect{grid=[[
+      {1:l}ine 1                                            |
+      line 2                                            |
+      line 3                                            |
+      line 4                                            |
+      {5:xtest-foo                                         }|
+      "xtest-foo" 4L, 28C                               |
+      {3:-- TERMINAL --}                                    |
+    ]]}
+  end)
+end)