test/clangd_tests.vim | 3 +++

diff --git a/test/clangd_tests.vim b/test/clangd_tests.vim
index 424ec7afc3ca3f6875f7566498880e8b11063d96..aaa12a511b60096110b442adc07928c4e6b44778 100644
--- a/test/clangd_tests.vim
+++ b/test/clangd_tests.vim
@@ -385,6 +385,9 @@   assert_equal('', execute('LspDiagFirst'))
   assert_equal([1, 5], [line('.'), col('.')])
   assert_equal('', execute('LspDiagNext'))
   assert_equal([1, 9], [line('.'), col('.')])
+  cursor(1, 1)
+  assert_equal('', execute('LspDiagLast'))
+  assert_equal([2, 9], [line('.'), col('.')])
   popup_clear()
 
   # Test for :LspDiagHere on a line with multiple diagnostics