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diff --git a/vim/pack/downloads/opt/lsp/test/common.vim b/vim/pack/downloads/opt/lsp/test/common.vim
new file mode 100644
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+++ b/vim/pack/downloads/opt/lsp/test/common.vim
@@ -0,0 +1,166 @@
+vim9script
+# Common routines used for running the unit tests
+
+# Load the LSP plugin.  Also enable syntax, file type detection.
+def g:LoadLspPlugin()
+  syntax on
+  filetype on
+  filetype plugin on
+  filetype indent on
+
+  # Set the $LSP_PROFILE environment variable to profile the LSP plugin
+  var do_profile: bool = false
+  if exists('$LSP_PROFILE')
+      do_profile = true
+  endif
+
+  if do_profile
+      # profile the LSP plugin
+      profile start lsp_profile.txt
+      profile! file */lsp/*
+  endif
+
+  g:LSPTest = true
+  source ../plugin/lsp.vim
+enddef
+
+# The WaitFor*() functions are reused from the Vim test suite.
+#
+# Wait for up to five seconds for "assert" to return zero.  "assert" must be a
+# (lambda) function containing one assert function.  Example:
+#	call WaitForAssert({-> assert_equal("dead", job_status(job)})
+#
+# A second argument can be used to specify a different timeout in msec.
+#
+# Return zero for success, one for failure (like the assert function).
+func g:WaitForAssert(assert, ...)
+  let timeout = get(a:000, 0, 5000)
+  if g:WaitForCommon(v:null, a:assert, timeout) < 0
+    return 1
+  endif
+  return 0
+endfunc
+
+# Either "expr" or "assert" is not v:null
+# Return the waiting time for success, -1 for failure.
+func g:WaitForCommon(expr, assert, timeout)
+  " using reltime() is more accurate, but not always available
+  let slept = 0
+  if exists('*reltimefloat')
+    let start = reltime()
+  endif
+
+  while 1
+    if type(a:expr) == v:t_func
+      let success = a:expr()
+    elseif type(a:assert) == v:t_func
+      let success = a:assert() == 0
+    else
+      let success = eval(a:expr)
+    endif
+    if success
+      return slept
+    endif
+
+    if slept >= a:timeout
+      break
+    endif
+    if type(a:assert) == v:t_func
+      " Remove the error added by the assert function.
+      call remove(v:errors, -1)
+    endif
+
+    sleep 10m
+    if exists('*reltimefloat')
+      let slept = float2nr(reltimefloat(reltime(start)) * 1000)
+    else
+      let slept += 10
+    endif
+  endwhile
+
+  return -1  " timed out
+endfunc
+
+# Wait for up to five seconds for "expr" to become true.  "expr" can be a
+# stringified expression to evaluate, or a funcref without arguments.
+# Using a lambda works best.  Example:
+#	call WaitFor({-> status == "ok"})
+#
+# A second argument can be used to specify a different timeout in msec.
+#
+# When successful the time slept is returned.
+# When running into the timeout an exception is thrown, thus the function does
+# not return.
+func g:WaitFor(expr, ...)
+  let timeout = get(a:000, 0, 5000)
+  let slept = g:WaitForCommon(a:expr, v:null, timeout)
+  if slept < 0
+    throw 'WaitFor() timed out after ' .. timeout .. ' msec'
+  endif
+  return slept
+endfunc
+
+# Wait for diagnostic messages from the LSP server.
+# Waits for a maximum of (150 * 200) / 1000 = 30 seconds
+def g:WaitForDiags(errCount: number)
+  var retries = 0
+  while retries < 200
+    var d = lsp#lsp#ErrorCount()
+    if d.Error == errCount
+      break
+    endif
+    retries += 1
+    :sleep 150m
+  endwhile
+
+  assert_equal(errCount, lsp#lsp#ErrorCount().Error)
+  if lsp#lsp#ErrorCount().Error != errCount
+    :LspDiag show
+    assert_report(getloclist(0)->string())
+    :lclose
+  endif
+enddef
+
+# Wait for the LSP server to load and process a file.  This works by waiting
+# for a certain number of diagnostic messages from the server.
+def g:WaitForServerFileLoad(diagCount: number)
+  :redraw!
+  var waitCount = diagCount
+  if waitCount == 0
+    # Introduce a temporary diagnostic
+    append('$', '-')
+    redraw!
+    waitCount = 1
+  endif
+  g:WaitForDiags(waitCount)
+  if waitCount != diagCount
+    # Remove the temporary line
+    deletebufline('%', '$')
+    redraw!
+    g:WaitForDiags(0)
+  endif
+enddef
+
+# Start the language server.  Returns true on success and false on failure.
+# 'fname' is the name of a dummy file to start the server.
+def g:StartLangServerWithFile(fname: string): bool
+  # Edit a dummy file to start the LSP server
+  exe ':silent! edit ' .. fname
+  # Wait for the LSP server to become ready (max 10 seconds)
+  var maxcount = 100
+  while maxcount > 0 && !g:LspServerReady()
+    :sleep 100m
+    maxcount -= 1
+  endwhile
+  var serverStatus: bool = g:LspServerReady()
+  :bw!
+
+  if !serverStatus
+    writefile(['FAIL: Not able to start the language server'], 'results.txt')
+    qall!
+  endif
+
+  return serverStatus
+enddef
+
+# vim: shiftwidth=2 softtabstop=2 noexpandtab