From 32f3937477e05b13e05bba4463c5cfd417a2fde8 Mon Sep 17 00:00:00 2001
From: "Justin M. Keyes" <justinkz@gmail.com>
Date: Mon, 23 Apr 2018 04:43:00 +0200
Subject: test: fsync() codepaths

---
 test/functional/core/fileio_spec.lua | 61 ++++++++++++++++++++++++++++++++++++
 1 file changed, 61 insertions(+)
 create mode 100644 test/functional/core/fileio_spec.lua

(limited to 'test')

diff --git a/test/functional/core/fileio_spec.lua b/test/functional/core/fileio_spec.lua
new file mode 100644
index 0000000000..848ef7cae0
--- /dev/null
+++ b/test/functional/core/fileio_spec.lua
@@ -0,0 +1,61 @@
+local helpers = require('test.functional.helpers')(after_each)
+
+local clear = helpers.clear
+local command = helpers.command
+local eq = helpers.eq
+local eval = helpers.eval
+local feed = helpers.feed
+local funcs = helpers.funcs
+local nvim_prog = helpers.nvim_prog
+local rmdir = helpers.rmdir
+local sleep = helpers.sleep
+
+describe('fileio', function()
+  before_each(function()
+  end)
+  after_each(function()
+    command(':qall!')
+    os.remove('Xtest_startup_shada')
+    os.remove('Xtest_startup_file1')
+    os.remove('Xtest_startup_file2')
+    rmdir('Xtest_startup_swapdir')
+  end)
+
+  it('fsync() codepaths #8304', function()
+    -- This is an "acceptance test" or "smoke test".
+
+    clear({ args={ '-i', 'Xtest_startup_shada',
+                   '--cmd', 'set directory=Xtest_startup_swapdir' } })
+
+    -- These cases ALWAYS force fsync (regardless of 'fsync' option):
+
+    -- 1. Idle (CursorHold) with modified buffers (+ 'swapfile').
+    command('set swapfile')
+    command('set updatetime=1')
+    command('write Xtest_startup_file1')
+    feed('ifoo<esc>h')
+    sleep(2)
+    eq(1, eval('&modified'))
+
+    -- 2. Exit caused by deadly signal (+ 'swapfile').
+    local j = funcs.jobstart({ nvim_prog, '-u', 'NONE', '-i',
+                               'Xtest_startup_shada', '--headless',
+                               '-c', 'set swapfile',
+                               '-c', 'write Xtest_startup_file2',
+                               '-c', 'put =localtime()', })
+    sleep(10)         -- Let Nvim start.
+    funcs.jobstop(j)  -- Send deadly signal.
+
+    -- 3. SIGPWR signal.
+    -- ??
+
+    -- 4. Explicit :preserve command.
+    command('preserve')
+
+    -- 5. Enable 'fsync' option, write file.
+    command('set fsync')
+    feed('ibaz<esc>h')
+    command('write')
+  end)
+end)
+
-- 
cgit 


From 77cb14cc6da5dff685c6e5a4005da433c39d5ff7 Mon Sep 17 00:00:00 2001
From: "Justin M. Keyes" <justinkz@gmail.com>
Date: Tue, 24 Apr 2018 00:27:09 +0200
Subject: API: nvim__stats()

Use it to verify fsync() behavior.
---
 test/functional/core/fileio_spec.lua | 21 ++++++++++++++-------
 1 file changed, 14 insertions(+), 7 deletions(-)

(limited to 'test')

diff --git a/test/functional/core/fileio_spec.lua b/test/functional/core/fileio_spec.lua
index 848ef7cae0..09533e4e60 100644
--- a/test/functional/core/fileio_spec.lua
+++ b/test/functional/core/fileio_spec.lua
@@ -3,10 +3,11 @@ local helpers = require('test.functional.helpers')(after_each)
 local clear = helpers.clear
 local command = helpers.command
 local eq = helpers.eq
-local eval = helpers.eval
 local feed = helpers.feed
 local funcs = helpers.funcs
 local nvim_prog = helpers.nvim_prog
+local request = helpers.request
+local retry = helpers.retry
 local rmdir = helpers.rmdir
 local sleep = helpers.sleep
 
@@ -22,20 +23,24 @@ describe('fileio', function()
   end)
 
   it('fsync() codepaths #8304', function()
-    -- This is an "acceptance test" or "smoke test".
-
     clear({ args={ '-i', 'Xtest_startup_shada',
                    '--cmd', 'set directory=Xtest_startup_swapdir' } })
 
     -- These cases ALWAYS force fsync (regardless of 'fsync' option):
 
     -- 1. Idle (CursorHold) with modified buffers (+ 'swapfile').
-    command('set swapfile')
-    command('set updatetime=1')
     command('write Xtest_startup_file1')
     feed('ifoo<esc>h')
-    sleep(2)
-    eq(1, eval('&modified'))
+    command('write')
+    eq(0, request('nvim__stats').fsync)   -- 'nofsync' is the default.
+    command('set swapfile')
+    command('set updatetime=1')
+    feed('izub<esc>h')                    -- File is 'modified'.
+    sleep(3)                              -- Allow 'updatetime' to expire.
+    retry(3, nil, function()
+      eq(1, request('nvim__stats').fsync)
+    end)
+    command('set updatetime=9999')
 
     -- 2. Exit caused by deadly signal (+ 'swapfile').
     local j = funcs.jobstart({ nvim_prog, '-u', 'NONE', '-i',
@@ -51,11 +56,13 @@ describe('fileio', function()
 
     -- 4. Explicit :preserve command.
     command('preserve')
+    eq(2, request('nvim__stats').fsync)
 
     -- 5. Enable 'fsync' option, write file.
     command('set fsync')
     feed('ibaz<esc>h')
     command('write')
+    eq(4, request('nvim__stats').fsync)
   end)
 end)
 
-- 
cgit