1 files changed, 121 insertions, 0 deletions
diff --git a/test/functional/options/chars_spec.lua b/test/functional/options/chars_spec.lua
new file mode 100644
index 0000000000..1330c29e61
--- /dev/null
+++ b/test/functional/options/chars_spec.lua
@@ -0,0 +1,121 @@
+local helpers = require('test.functional.helpers')(after_each)
+local Screen = require('test.functional.ui.screen')
+local clear, command = helpers.clear, helpers.command
+local eval = helpers.eval
+local eq = helpers.eq
+local exc_exec = helpers.exc_exec
+local insert = helpers.insert
+local feed = helpers.feed
+
+describe("'fillchars'", function()
+  local screen
+
+  before_each(function()
+    clear()
+    screen = Screen.new(25, 5)
+    screen:attach()
+  end)
+
+  after_each(function()
+    screen:detach()
+  end)
+
+  local function shouldfail(val,errval)
+    errval = errval or val
+    eq('Vim(set):E474: Invalid argument: fillchars='..errval,
+       exc_exec('set fillchars='..val))
+  end
+
+  describe('"eob" flag', function()
+    it("uses '~' by default", function()
+      eq('', eval('&fillchars'))
+      screen:expect([[
+        ^                         |
+        ~                        |
+        ~                        |
+        ~                        |
+                                 |
+      ]])
+    end)
+    it('supports whitespace', function()
+      screen:expect([[
+        ^                         |
+        ~                        |
+        ~                        |
+        ~                        |
+                                 |
+      ]])
+      command('set fillchars=eob:\\ ')
+      screen:expect([[
+        ^                         |
+                                 |
+                                 |
+                                 |
+                                 |
+      ]])
+    end)
+    it('supports multibyte char', function()
+      command('set fillchars=eob:ñ')
+      screen:expect([[
+        ^                         |
+        ñ                        |
+        ñ                        |
+        ñ                        |
+                                 |
+      ]])
+    end)
+    it('handles invalid values', function()
+      shouldfail('eob:') -- empty string
+      shouldfail('eob:馬') -- doublewidth char
+      shouldfail('eob:å̲') -- composing chars
+      shouldfail('eob:xy') -- two ascii chars
+      shouldfail('eob:\255', 'eob:<ff>') -- invalid UTF-8
+    end)
+    it('is local to window', function()
+      clear()
+      screen = Screen.new(50, 5)
+      screen:attach()
+      insert("foo\nbar")
+      command('set laststatus=0')
+      command('1,2fold')
+      command('vsplit')
+      command('set fillchars=fold:x')
+      screen:expect([[
+        ^+--  2 lines: fooxxxxxxxx│+--  2 lines: foo·······|
+        ~                        │~                       |
+        ~                        │~                       |
+        ~                        │~                       |
+                                                          |
+      ]])
+    end)
+  end)
+end)
+
+describe("'listchars'", function()
+  local screen
+
+  before_each(function()
+    clear()
+    screen = Screen.new(50, 5)
+    screen:attach()
+  end)
+
+  after_each(function()
+    screen:detach()
+  end)
+
+  it('is local to window', function()
+    feed('i<tab><tab><tab><esc>')
+    command('set laststatus=0')
+    command('set list listchars=tab:<->')
+    command('vsplit')
+    command('set listchars&')
+    screen:expect([[
+      >       >       ^>        │<------><------><------>|
+      ~                        │~                       |
+      ~                        │~                       |
+      ~                        │~                       |
+                                                        |
+    ]])
+  end)
+end)