test/clangd_tests.vim | 14 ++++++++++++++

diff --git a/test/clangd_tests.vim b/test/clangd_tests.vim
index 5ceabb4c23f2a26ff6753d157027559bf113d614..f86fb8fcbbfa003d67deb43dac8c045d38358484 100644
--- a/test/clangd_tests.vim
+++ b/test/clangd_tests.vim
@@ -947,6 +947,8 @@
     void f2(void)
     {
       f1(5);
+      char *z = "z";
+      f1(z);
     }
   END
   setline(1, lines)
@@ -960,7 +962,19 @@   popup_close(p[0])
   cursor(7, 1)
   :LspHover
   assert_equal([], popup_list())
+
+  # Show current diagnostic as to open another popup.
+  # Then we can test that LspHover closes all existing popups
+  cursor(10, 6)
+  :LspDiagCurrent
+  assert_equal(1, popup_list()->len())
+  :LspHover
+  assert_equal(1, popup_list()->len())
+  popup_clear()
+
   :%bw!
+
+
 enddef
 
 # Test for :LspShowSignature