1 files changed, 42 insertions, 0 deletions
diff --git a/test/functional/options/num_options_spec.lua b/test/functional/options/num_options_spec.lua
new file mode 100644
index 0000000000..c37bbeffc3
--- /dev/null
+++ b/test/functional/options/num_options_spec.lua
@@ -0,0 +1,42 @@
+-- Tests for :setlocal and :setglobal
+
+local helpers = require('test.functional.helpers')(after_each)
+local clear, execute, eval, eq, nvim =
+  helpers.clear, helpers.execute, helpers.eval, helpers.eq, helpers.nvim
+
+local function get_num_option_global(opt)
+  return nvim('command_output', 'setglobal ' .. opt .. '?'):match('%d+')
+end
+
+local function should_fail(opt, value, errmsg)
+  execute('let v:errmsg = ""')
+  execute('setglobal ' .. opt .. '=' .. value)
+  eq(errmsg, eval("v:errmsg"):match("E%d*:"))
+  execute('let v:errmsg = ""')
+  execute('setlocal ' .. opt .. '=' .. value)
+  eq(errmsg, eval("v:errmsg"):match("E%d*:"))
+  execute('let v:errmsg = ""')
+end
+
+describe(':setlocal', function()
+  before_each(clear)
+
+  it('setlocal sets only local value', function()
+    eq('0', get_num_option_global('iminsert'))
+    execute('setlocal iminsert=1')
+    eq('0', get_num_option_global('iminsert'))
+    eq('0', get_num_option_global('imsearch'))
+    execute('setlocal imsearch=1')
+    eq('0', get_num_option_global('imsearch'))
+  end)
+end)
+
+describe(':set validation', function()
+  before_each(clear)
+
+  it('setlocal and setglobal validate values', function()
+    should_fail('shiftwidth', -10, 'E487')
+    should_fail('tabstop', -10, 'E487')
+    should_fail('winheight', -10, 'E487')
+  end)
+end)