test: Eliminate expect_err

Eliminate `expect_err` in favor of `pcall_err` + `eq` or `matches`.

1 files changed, 4 insertions, 3 deletions

diff --git a/test/functional/provider/python_spec.lua b/test/functional/provider/python_spec.lua
index 869cfd1721..eab4b29d3a 100644
--- a/test/functional/provider/python_spec.lua
+++ b/test/functional/provider/python_spec.lua
@@ -8,20 +8,21 @@ local funcs = helpers.funcs
 local meths = helpers.meths
 local insert = helpers.insert
 local expect = helpers.expect
-local expect_err = helpers.expect_err
 local command = helpers.command
 local exc_exec = helpers.exc_exec
 local write_file = helpers.write_file
 local curbufmeths = helpers.curbufmeths
 local missing_provider = helpers.missing_provider
+local matches = helpers.matches
+local pcall_err = helpers.pcall_err
 
 do
   clear()
   if missing_provider('python') then
     it(':python reports E319 if provider is missing', function()
       local expected = [[Vim%(py.*%):E319: No "python" provider found.*]]
-      expect_err(expected, command, 'py print("foo")')
-      expect_err(expected, command, 'pyfile foo')
+      matches(expected, pcall_err(command, 'py print("foo")'))
+      matches(expected, pcall_err(command, 'pyfile foo'))
     end)
     pending('Python 2 (or the pynvim module) is broken/missing', function() end)
     return