3 files changed, 30 insertions, 2 deletions
diff --git a/test/functional/eval/let_spec.lua b/test/functional/eval/let_spec.lua
new file mode 100644
index 0000000000..c3ab3cc367
--- /dev/null
+++ b/test/functional/eval/let_spec.lua
@@ -0,0 +1,22 @@
+local helpers = require('test.functional.helpers')(after_each)
+
+local eq = helpers.eq
+local clear = helpers.clear
+local meths = helpers.meths
+local redir_exec = helpers.redir_exec
+
+before_each(clear)
+
+describe(':let command', function()
+  it('correctly lists variables with curly-braces', function()
+    meths.set_var('v', {0})
+    eq('\nv                     [0]', redir_exec('let {"v"}'))
+  end)
+
+  it('correctly lists variables with subscript', function()
+    meths.set_var('v', {0})
+    eq('\nv[0]                  #0', redir_exec('let v[0]'))
+    eq('\ng:["v"][0]            #0', redir_exec('let g:["v"][0]'))
+    eq('\n{"g:"}["v"][0]        #0', redir_exec('let {"g:"}["v"][0]'))
+  end)
+end)
diff --git a/test/functional/helpers.lua b/test/functional/helpers.lua
index 4db658d98c..53cbf8d4a1 100644
--- a/test/functional/helpers.lua
+++ b/test/functional/helpers.lua
@@ -9,6 +9,7 @@ local TcpStream = require('nvim.tcp_stream')
 local SocketStream = require('nvim.socket_stream')
 local ChildProcessStream = require('nvim.child_process_stream')
 
+local check_cores = global_helpers.check_cores
 local check_logs = global_helpers.check_logs
 local neq = global_helpers.neq
 local eq = global_helpers.eq
@@ -608,7 +609,10 @@ local M = {
 
 return function(after_each)
   if after_each then
-    after_each(check_logs)
+    after_each(function()
+      check_logs()
+      check_cores('build/bin/nvim')
+    end)
   end
   return M
 end
diff --git a/test/functional/legacy/arglist_spec.lua b/test/functional/legacy/arglist_spec.lua
index b86d3f0aea..f5e3522972 100644
--- a/test/functional/legacy/arglist_spec.lua
+++ b/test/functional/legacy/arglist_spec.lua
@@ -222,7 +222,6 @@ describe('argument list commands', function()
     execute('argedit a')
     eq({'a', 'b'}, eval('argv()'))
     eq('a', eval('expand("%:t")'))
-    assert_fails('argedit a b', 'E172:')
     execute('argedit c')
     eq({'a', 'c', 'b'}, eval('argv()'))
     execute('0argedit x')
@@ -232,6 +231,9 @@ describe('argument list commands', function()
     execute('argedit! y')
     eq({'x', 'y', 'a', 'c', 'b'}, eval('argv()'))
     execute('%argd')
+    -- Nvim allows unescaped spaces in filename on all platforms. #6010
+    execute('argedit a b')
+    eq({'a b'}, eval('argv()'))
   end)
 
   it('test for :argdelete command', function()