2 files changed, 8 insertions, 6 deletions
diff --git a/test/functional/treesitter/language_spec.lua b/test/functional/treesitter/language_spec.lua
index 51d8eb62f3..a8831b9a9b 100644
--- a/test/functional/treesitter/language_spec.lua
+++ b/test/functional/treesitter/language_spec.lua
@@ -18,22 +18,23 @@ describe('treesitter language API', function()
 
     -- actual message depends on platform
     matches("Failed to load parser for language 'borklang': uv_dlopen: .+",
-       pcall_err(exec_lua, "parser = vim.treesitter.require_language('borklang', 'borkbork.so')"))
+       pcall_err(exec_lua, "parser = vim.treesitter.add('borklang', { path = 'borkbork.so' })"))
 
     -- Should not throw an error when silent
-    eq(false, exec_lua("return vim.treesitter.require_language('borklang', nil, true)"))
-    eq(false, exec_lua("return vim.treesitter.require_language('borklang', 'borkbork.so', true)"))
+    eq(false, exec_lua("return vim.treesitter.add('borklang', { silent = true })"))
+
+    eq(false, exec_lua("return vim.treesitter.add('borklang', { path = 'borkbork.so', silent = true })"))
 
     eq(".../language.lua:0: no parser for 'borklang' language, see :help treesitter-parsers",
        pcall_err(exec_lua, "parser = vim.treesitter.inspect_language('borklang')"))
 
     matches("Failed to load parser: uv_dlsym: .+",
-       pcall_err(exec_lua, 'vim.treesitter.require_language("c", nil, false, "borklang")'))
+       pcall_err(exec_lua, 'vim.treesitter.add("c", { symbol_name = "borklang" })'))
   end)
 
   it('shows error for invalid language name', function()
     eq(".../language.lua:0: '/foo/' is not a valid language name",
-      pcall_err(exec_lua, 'vim.treesitter.require_language("/foo/", nil, false)'))
+      pcall_err(exec_lua, 'vim.treesitter.add("/foo/", nil, false)'))
   end)
 
   it('inspects language', function()
diff --git a/test/functional/treesitter/parser_spec.lua b/test/functional/treesitter/parser_spec.lua
index 2d0d57fbd0..2430021617 100644
--- a/test/functional/treesitter/parser_spec.lua
+++ b/test/functional/treesitter/parser_spec.lua
@@ -182,8 +182,9 @@ void ui_refresh(void)
     local firstrun = q(1)
     local manyruns = q(100)
 
+    local factor = is_os('win') and 3 or 4
     -- First run should be at least 4x slower.
-    assert(400 * manyruns < firstrun, ('firstrun: %d ms, manyruns: %d ms'):format(firstrun / 1000, manyruns / 1000))
+    assert(factor * 100 * manyruns < firstrun, ('firstrun: %d ms, manyruns: %d ms'):format(firstrun / 1000, manyruns / 1000))
   end)
 
   it('support query and iter by capture', function()