1 files changed, 110 insertions, 0 deletions
diff --git a/test/functional/ui/options_spec.lua b/test/functional/ui/options_spec.lua
new file mode 100644
index 0000000000..62b08c0967
--- /dev/null
+++ b/test/functional/ui/options_spec.lua
@@ -0,0 +1,110 @@
+local helpers = require('test.functional.helpers')(after_each)
+local Screen = require('test.functional.ui.screen')
+local clear = helpers.clear
+local command = helpers.command
+local eq = helpers.eq
+
+describe('ui receives option updates', function()
+  local screen
+
+  before_each(function()
+    clear()
+    screen = Screen.new(20,5)
+  end)
+
+  after_each(function()
+    screen:detach()
+  end)
+
+  local defaults = {
+    ambiwidth='single',
+    arabicshape=true,
+    emoji=true,
+    guifont='',
+    guifontset='',
+    guifontwide='',
+    linespace=0,
+    showtabline=1,
+    termguicolors=false,
+    ext_cmdline=false,
+    ext_popupmenu=false,
+    ext_tabline=false,
+    ext_wildmenu=false,
+  }
+
+  it("for defaults", function()
+    screen:attach()
+    screen:expect(function()
+      eq(defaults, screen.options)
+    end)
+  end)
+
+  it("when setting options", function()
+    screen:attach()
+    local changed = {}
+    for k,v in pairs(defaults) do
+      changed[k] = v
+    end
+
+    command("set termguicolors")
+    changed.termguicolors = true
+    screen:expect(function()
+      eq(changed, screen.options)
+    end)
+
+    command("set guifont=Comic\\ Sans")
+    changed.guifont = "Comic Sans"
+    screen:expect(function()
+      eq(changed, screen.options)
+    end)
+
+    command("set showtabline=0")
+    changed.showtabline = 0
+    screen:expect(function()
+      eq(changed, screen.options)
+    end)
+
+    command("set linespace=13")
+    changed.linespace = 13
+    screen:expect(function()
+      eq(changed, screen.options)
+    end)
+
+    command("set linespace=-11")
+    changed.linespace = -11
+    screen:expect(function()
+      eq(changed, screen.options)
+    end)
+
+    command("set all&")
+    screen:expect(function()
+      eq(defaults, screen.options)
+    end)
+  end)
+
+  it('with UI extensions', function()
+    local changed = {}
+    for k,v in pairs(defaults) do
+      changed[k] = v
+    end
+
+    screen:attach({ext_cmdline=true, ext_wildmenu=true})
+    changed.ext_cmdline = true
+    changed.ext_wildmenu = true
+    screen:expect(function()
+      eq(changed, screen.options)
+    end)
+
+    screen:set_option('ext_popupmenu', true)
+    changed.ext_popupmenu = true
+    screen:expect(function()
+      eq(changed, screen.options)
+    end)
+
+    screen:set_option('ext_wildmenu', false)
+    changed.ext_wildmenu = false
+    screen:expect(function()
+      eq(changed, screen.options)
+    end)
+  end)
+end)