Add ‘eob’ option to fillchars

This option allows configuring what character is shown on the empty
lines at the end of a buffer, previously hardcoded to ‘~’

1 files changed, 45 insertions, 0 deletions

diff --git a/test/functional/options/fillchars_spec.lua b/test/functional/options/fillchars_spec.lua
new file mode 100644
index 0000000000..4ac3655f08
--- /dev/null
+++ b/test/functional/options/fillchars_spec.lua
@@ -0,0 +1,45 @@
+local helpers = require('test.functional.helpers')(after_each)
+local Screen = require('test.functional.ui.screen')
+local clear, execute = helpers.clear, helpers.execute
+
+describe("'fillchars'", function()
+  local screen
+
+  before_each(function()
+    clear()
+    screen = Screen.new(25, 5)
+    screen:attach()
+  end)
+
+  after_each(function()
+    screen:detach()
+  end)
+
+  describe('"eob" flag', function()
+    it('renders empty lines at the end of the buffer with eob', function()
+      screen:expect([[
+        ^                         |
+        ~                        |
+        ~                        |
+        ~                        |
+                                 |
+      ]])
+      execute('set fillchars+=eob:\\ ')
+      screen:expect([[
+        ^                         |
+                                 |
+                                 |
+                                 |
+        :set fillchars+=eob:\    |
+      ]])
+      execute('set fillchars+=eob:ñ')
+      screen:expect([[
+        ^                         |
+        ñ                        |
+        ñ                        |
+        ñ                        |
+        :set fillchars+=eob:ñ    |
+      ]])
+    end)
+  end)
+end)