1 files changed, 17 insertions, 8 deletions
diff --git a/test/functional/api/vim_spec.lua b/test/functional/api/vim_spec.lua
index b5fcd88f71..18e6dbd9b6 100644
--- a/test/functional/api/vim_spec.lua
+++ b/test/functional/api/vim_spec.lua
@@ -3167,14 +3167,23 @@ describe('API', function()
 
   describe('nvim_create_namespace', function()
     it('works', function()
-      eq({}, api.nvim_get_namespaces())
-      eq(1, api.nvim_create_namespace('ns-1'))
-      eq(2, api.nvim_create_namespace('ns-2'))
-      eq(1, api.nvim_create_namespace('ns-1'))
-      eq({ ['ns-1'] = 1, ['ns-2'] = 2 }, api.nvim_get_namespaces())
-      eq(3, api.nvim_create_namespace(''))
-      eq(4, api.nvim_create_namespace(''))
-      eq({ ['ns-1'] = 1, ['ns-2'] = 2 }, api.nvim_get_namespaces())
+      local orig = api.nvim_get_namespaces()
+      local base = vim.iter(orig):fold(0, function(acc, _, v)
+        return math.max(acc, v)
+      end)
+      eq(base + 1, api.nvim_create_namespace('ns-1'))
+      eq(base + 2, api.nvim_create_namespace('ns-2'))
+      eq(base + 1, api.nvim_create_namespace('ns-1'))
+
+      local expected = vim.tbl_extend('error', orig, {
+        ['ns-1'] = base + 1,
+        ['ns-2'] = base + 2,
+      })
+
+      eq(expected, api.nvim_get_namespaces())
+      eq(base + 3, api.nvim_create_namespace(''))
+      eq(base + 4, api.nvim_create_namespace(''))
+      eq(expected, api.nvim_get_namespaces())
     end)
   end)