tests: wviminfo_spec.lua: rework

074_global_var_in_viminfo_spec: remove some redundant sanity checks.

test/functional/ex_cmds/wviminfo_spec.lua

@@ -3,60 +3,55 @@ local clear, execute, eq, neq, spawn, nvim_prog, set_session, wait =
   helpers.clear, helpers.execute, helpers.eq, helpers.neq, helpers.spawn,
   helpers.nvim_prog, helpers.set_session, helpers.wait
 
--- Lua does not have a sleep function so we use the system command.  If the
--- command does not support sub second precision we use math.floor() to get
--- full seconds.
-local sleep = function(millisec)
-  local sec = millisec / 1000
-  local round = math.floor(sec)
-  if round == 0 then round = 1 end
-  os.execute('sleep '..sec..' || sleep '..round)
-end
-
 describe(':wviminfo', function()
-  local file = 'foo'
+  local viminfo_file = 'wviminfo_test'
+  local session
+
   before_each(function()
-    clear()
-    os.remove(file)
+    if session then
+      session:exit(0)
+    end
+
+    -- Override the default session because we need 'swapfile' for these tests.
+    local session = spawn({nvim_prog, '-u', 'NONE', '--embed',
+                           '--cmd', 'set swapfile'})
+    set_session(session)
+
+    os.remove(viminfo_file)
   end)
 
-  it('creates a file', function()
-    -- TODO
-    -- Set up the nvim session to be able to write viminfo files.  Is it
-    -- possible to do this outside of the it() call?
-    local nvim2 = spawn({nvim_prog, '-u', 'NONE', '--embed'})
-    --local nvim2 = spawn({nvim_prog, '-u', 'NONE', '--embed', '--cmd', 'let hans=42' })
-    set_session(nvim2)
-    --eq(43, eval('hans'))
-
-    -- Assert that the file does not exist.
-    eq(nil, lfs.attributes(file))
-    execute('wv! '..file)
+  it('creates a viminfo file', function()
+    -- file should _not_ exist
+    eq(nil, lfs.attributes(viminfo_file))
+    execute('wv! '..viminfo_file)
     wait()
-    -- Assert that the file does exist.
-    neq(nil, lfs.attributes(file))
+    -- file _should_ exist
+    neq(nil, lfs.attributes(viminfo_file))
   end)
 
   it('overwrites existing files', function()
-    -- TODO see above
-    local nvim2 = spawn({nvim_prog, '-u', 'NONE', '--embed'})
-    set_session(nvim2)
+    local text = 'wviminfo test'
 
-    local text = 'foo test'
-
-    local fp = io.open(file, 'w')
+    -- Create a dummy file
+    local fp = io.open(viminfo_file, 'w')
     fp:write(text)
     fp:flush()
     fp:close()
-    -- Assert that the file already exists.
-    neq(nil, lfs.attributes(file))
-    execute('wv! '..file)
+
+    -- sanity check
+    eq(text, io.open(viminfo_file):read())
+    neq(nil, lfs.attributes(viminfo_file))
+
+    execute('wv! '..viminfo_file)
     wait()
-    -- Assert that the contents of the file changed.
-    neq(text, io.open(file):read())
+
+    -- File should have been overwritten with a viminfo file.
+    local line1 = io.lines(viminfo_file)()
+    assert(nil ~= string.find(line1, 'This viminfo file was generated by Nvim'),
+      viminfo_file..' should be a viminfo-formatted file')
   end)
 
   teardown(function()
-    os.remove(file)
+    os.remove(viminfo_file)
   end)
 end)

test/functional/legacy/074_global_var_in_viminfo_spec.lua

@@ -34,21 +34,20 @@ describe('storing global variables in viminfo files', function()
     )
     eq(test_dict, eval('MY_GLOBAL_DICT'))
     eq(test_list, eval('MY_GLOBAL_LIST'))
-    -- Assert that the viminfo file does not exists.
-    eq(nil, lfs.attributes('Xviminfo'))
+
     execute('wv! Xviminfo')
     wait()
+
     -- Assert that the viminfo file exists.
     neq(nil, lfs.attributes('Xviminfo'))
     execute('unlet MY_GLOBAL_DICT',
-	    'unlet MY_GLOBAL_LIST')
+            'unlet MY_GLOBAL_LIST')
     -- Assert that the variables where deleted.
     eq(0, eval('exists("MY_GLOBAL_DICT")'))
     eq(0, eval('exists("MY_GLOBAL_LIST")'))
+
     execute('rv! Xviminfo')
-    -- Assert that the variables where restored.
-    eq(1, eval('exists("MY_GLOBAL_DICT")'))
-    eq(1, eval('exists("MY_GLOBAL_LIST")'))
+
     eq(test_list, eval('MY_GLOBAL_LIST'))
     eq(test_dict, eval('MY_GLOBAL_DICT'))
   end)