runtime: Add vim.lsp.get_client_by_name (#11603)

Since the client name is more obvious than the client id for the user, add an
API to get the lsp client by the client name.

1 files changed, 4 insertions, 0 deletions

diff --git a/test/functional/plugin/lsp/lsp_spec.lua b/test/functional/plugin/lsp/lsp_spec.lua
index f10fd5c185..99240ebed6 100644
--- a/test/functional/plugin/lsp/lsp_spec.lua
+++ b/test/functional/plugin/lsp/lsp_spec.lua
@@ -111,6 +111,7 @@ describe('Language Client API', function()
       exec_lua([=[
         lsp = require('vim.lsp')
         local test_name, fixture_filename = ...
+        TEST_NAME = test_name
         TEST_RPC_CLIENT_ID = lsp.start_client {
           cmd = {
             vim.api.nvim_get_vvar("progpath"), '-Es', '-u', 'NONE', '--headless',
@@ -118,6 +119,7 @@ describe('Language Client API', function()
             "-c", "luafile "..fixture_filename;
           };
           root_dir = vim.loop.cwd();
+          name = test_name;
         }
       ]=], test_name, lsp_test_rpc_server_file)
     end)
@@ -137,6 +139,7 @@ describe('Language Client API', function()
         end
         eq(1, exec_lua("return #lsp.get_active_clients()"))
         eq(false, exec_lua("return lsp.get_client_by_id(TEST_RPC_CLIENT_ID) == nil"))
+        eq(false, exec_lua("return lsp.get_client_by_name(TEST_NAME) == nil"))
         eq(false, exec_lua("return lsp.get_client_by_id(TEST_RPC_CLIENT_ID).is_stopped()"))
         exec_lua("return lsp.get_client_by_id(TEST_RPC_CLIENT_ID).stop()")
         for _ = 1, 20 do
@@ -146,6 +149,7 @@ describe('Language Client API', function()
           end
         end
         eq(true, exec_lua("return lsp.get_client_by_id(TEST_RPC_CLIENT_ID) == nil"))
+        eq(true, exec_lua("return lsp.get_client_by_name(TEST_NAME) == nil"))
       end)
     end)
   end)