1 files changed, 128 insertions, 0 deletions
diff --git a/test/functional/ui/cmdline_spec.lua b/test/functional/ui/cmdline_spec.lua
new file mode 100644
index 0000000000..67eff9827c
--- /dev/null
+++ b/test/functional/ui/cmdline_spec.lua
@@ -0,0 +1,128 @@
+local helpers = require('test.functional.helpers')(after_each)
+local Screen = require('test.functional.ui.screen')
+local clear, feed, execute, eq = helpers.clear, helpers.feed, helpers.execute, helpers.eq
+local funcs = helpers.funcs
+
+if helpers.pending_win32(pending) then return end
+
+describe('External command line completion', function()
+  local screen
+  local shown = false
+  local firstc, prompt, content, pos
+
+  before_each(function()
+    clear()
+    screen = Screen.new(25, 5)
+    screen:attach({rgb=true, cmdline_external=true})
+    screen:set_on_event_handler(function(name, data)
+      if name == "cmdline_enter" then
+        shown = true
+      elseif name == "cmdline_leave" then
+        shown = false
+      elseif name == "cmdline_firstc" then
+        firstc = data[1]
+      elseif name == "cmdline_prompt" then
+        prompt = data[1]
+      elseif name == "cmdline" then
+        content, pos = unpack(data)
+      elseif name == "cmdline_pos" then
+        pos = data[1]
+      end
+    end)
+  end)
+
+  after_each(function()
+    screen:detach()
+  end)
+
+  describe("'cmdline'", function()
+    it(':sign', function()
+      feed(':')
+      screen:expect([[
+        ^                         |
+        ~                        |
+        ~                        |
+        ~                        |
+                                 |
+      ]], nil, nil, function()
+        eq(true, shown)
+        eq(':', firstc)
+      end)
+
+      feed('sign')
+      screen:expect([[
+        ^                         |
+        ~                        |
+        ~                        |
+        ~                        |
+                                 |
+      ]], nil, nil, function()
+        eq("sign", content)
+        eq(4, pos)
+      end)
+
+      feed('<Left>')
+      screen:expect([[
+        ^                         |
+        ~                        |
+        ~                        |
+        ~                        |
+                                 |
+      ]], nil, nil, function()
+        eq("sign", content)
+        eq(true, shown)
+        eq(3, pos)
+      end)
+
+      feed('<bs>')
+      screen:expect([[
+        ^                         |
+        ~                        |
+        ~                        |
+        ~                        |
+                                 |
+      ]], nil, nil, function()
+        eq("sin", content)
+        eq(true, shown)
+        eq(2, pos)
+      end)
+
+      feed('<Esc>')
+      screen:expect([[
+        ^                         |
+        ~                        |
+        ~                        |
+        ~                        |
+                                 |
+      ]], nil, nil, function()
+        eq(false, shown)
+      end)
+
+      feed(':call input("input", "default")<cr>')
+      screen:expect([[
+        ^                         |
+        ~                        |
+        ~                        |
+        ~                        |
+                                 |
+      ]], nil, nil, function()
+        eq(true, shown)
+        eq("input", prompt)
+        eq("default", content)
+      end)
+
+      feed('<cr>')
+      feed(':<C-R>=1+2<cr>')
+      screen:expect([[
+        ^                         |
+        ~                        |
+        ~                        |
+        ~                        |
+                                 |
+      ]], nil, nil, function()
+        eq("3", content)
+      end)
+
+    end)
+  end)
+end)