api/ui: externalize tabline

1 files changed, 58 insertions, 0 deletions

diff --git a/test/functional/ui/tabline_spec.lua b/test/functional/ui/tabline_spec.lua
new file mode 100644
index 0000000000..018e008e4a
--- /dev/null
+++ b/test/functional/ui/tabline_spec.lua
@@ -0,0 +1,58 @@
+local helpers = require('test.functional.helpers')(after_each)
+local Screen = require('test.functional.ui.screen')
+local clear, feed, eq = helpers.clear, helpers.feed, helpers.eq
+
+if helpers.pending_win32(pending) then return end
+
+describe('External tab line', function()
+  local screen
+  local tabs, curtab
+
+  before_each(function()
+    clear()
+    screen = Screen.new(25, 5)
+    screen:attach({rgb=true, tabline_external=true})
+    screen:set_on_event_handler(function(name, data)
+      if name == "tabline_update" then
+        curtab, tabs = unpack(data)
+      end
+    end)
+  end)
+
+  after_each(function()
+    screen:detach()
+  end)
+
+  describe("'tabline'", function()
+    it('tabline', function()
+      local expected = {
+        {1, {['name'] = '[No Name]'}},
+        {2, {['name'] = '[No Name]'}},
+      }
+      feed(":tabnew<CR>")
+      screen:expect([[
+        ^                         |
+        ~                        |
+        ~                        |
+        ~                        |
+                                 |
+      ]], nil, nil, function()
+        eq(2, curtab)
+        eq(expected, tabs)
+      end)
+
+      feed(":tabNext<CR>")
+      screen:expect([[
+        ^                         |
+        ~                        |
+        ~                        |
+        ~                        |
+                                 |
+      ]], nil, nil, function()
+        eq(1, curtab)
+        eq(expected, tabs)
+      end)
+
+    end)
+  end)
+end)