1 files changed, 18 insertions, 0 deletions
diff --git a/test/functional/core/startup_spec.lua b/test/functional/core/startup_spec.lua
index cc10d36a10..96822803bf 100644
--- a/test/functional/core/startup_spec.lua
+++ b/test/functional/core/startup_spec.lua
@@ -277,6 +277,24 @@ describe('startup', function()
         [4] = {bold = true, foreground = Screen.colors.Blue1},
     }})
   end)
+
+  it('fixed hang issue with --headless (#11386)', function()
+    local expected = ''
+    local period = 100
+    for i = 1, period - 1 do
+      expected = expected .. i .. '\r\n'
+    end
+    expected = expected .. period
+    eq(
+      expected,
+      -- FIXME(codehex): We should really set a timeout for the system function.
+      -- If this test fails, there will be a waiting input state.
+      funcs.system({nvim_prog, '-u', 'NONE', '-c',
+        'for i in range(1, 100) | echo i | endfor | quit',
+        '--headless'
+      })
+    )
+  end)
 end)
 
 describe('sysinit', function()