1 files changed, 97 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..ed17ffdd3c
--- /dev/null
+++ b/test/functional/options/num_options_spec.lua
@@ -0,0 +1,97 @@
+-- Tests for :setlocal and :setglobal
+
+local helpers = require('test.functional.helpers')(after_each)
+local clear, feed_command, eval, eq, meths =
+  helpers.clear, helpers.feed_command, helpers.eval, helpers.eq, helpers.meths
+
+local function should_fail(opt, value, errmsg)
+  feed_command('setglobal ' .. opt .. '=' .. value)
+  eq(errmsg, eval("v:errmsg"):match("E%d*"))
+  feed_command('let v:errmsg = ""')
+  feed_command('setlocal ' .. opt .. '=' .. value)
+  eq(errmsg, eval("v:errmsg"):match("E%d*"))
+  feed_command('let v:errmsg = ""')
+  local status, err = pcall(meths.set_option, opt, value)
+  eq(status, false)
+  eq(errmsg, err:match("E%d*"))
+  eq('', eval("v:errmsg"))
+end
+
+local function should_succeed(opt, value)
+  feed_command('setglobal ' .. opt .. '=' .. value)
+  feed_command('setlocal ' .. opt .. '=' .. value)
+  meths.set_option(opt, value)
+  eq(value, meths.get_option(opt))
+  eq('', eval("v:errmsg"))
+end
+
+describe(':setlocal', function()
+  before_each(clear)
+
+  it('setlocal sets only local value', function()
+    eq(0, meths.get_option('iminsert'))
+    feed_command('setlocal iminsert=1')
+    eq(0, meths.get_option('iminsert'))
+    eq(0, meths.get_option('imsearch'))
+    feed_command('setlocal imsearch=1')
+    eq(0, meths.get_option('imsearch'))
+  end)
+end)
+
+describe(':set validation', function()
+  before_each(clear)
+
+  it('setlocal and setglobal validate values', function()
+    should_fail('shiftwidth', -10, 'E487')
+    should_succeed('shiftwidth', 0)
+    should_fail('tabstop', -10, 'E487')
+    should_fail('winheight', -10, 'E487')
+    should_fail('winheight', 0, 'E487')
+    should_fail('winminheight', -1, 'E487')
+    should_succeed('winminheight', 0)
+    should_fail('winwidth', 0, 'E487')
+    should_fail('helpheight', -1, 'E487')
+    should_fail('maxcombine', 7, 'E474')
+    should_fail('iminsert', 3, 'E474')
+    should_fail('imsearch', 3, 'E474')
+    should_fail('titlelen', -1, 'E487')
+    should_fail('cmdheight', 0, 'E487')
+    should_fail('updatecount', -1, 'E487')
+    should_fail('textwidth', -1, 'E487')
+    should_fail('tabstop', 0, 'E487')
+    should_fail('timeoutlen', -1, 'E487')
+    should_fail('history', 1000000, 'E474')
+    should_fail('regexpengine', -1, 'E474')
+    should_fail('regexpengine', 3, 'E474')
+    should_succeed('regexpengine', 2)
+    should_fail('report', -1, 'E487')
+    should_succeed('report', 0)
+    should_fail('scrolloff', -1, 'E49')
+    should_fail('sidescrolloff', -1, 'E487')
+    should_fail('sidescroll', -1, 'E487')
+    should_fail('cmdwinheight', 0, 'E487')
+    should_fail('updatetime', -1, 'E487')
+
+    should_fail('foldlevel', -5, 'E487')
+    should_fail('foldcolumn', 13, 'E474')
+    should_fail('conceallevel', 4, 'E474')
+    should_fail('numberwidth', 11, 'E474')
+    should_fail('numberwidth', 0, 'E487')
+
+    -- If smaller than 1 this one is set to 'lines'-1
+    feed_command('setglobal window=-10')
+    meths.set_option('window', -10)
+    eq(23, meths.get_option('window'))
+    eq('', eval("v:errmsg"))
+  end)
+
+  it('set wmh/wh wmw/wiw checks', function()
+    feed_command('set winheight=2')
+    feed_command('set winminheight=3')
+    eq('E591', eval("v:errmsg"):match("E%d*"))
+
+    feed_command('set winwidth=2')
+    feed_command('set winminwidth=3')
+    eq('E592', eval("v:errmsg"):match("E%d*"))
+  end)
+end)