1 files changed, 96 insertions, 0 deletions
diff --git a/test/functional/legacy/088_conceal_tabs_spec.lua b/test/functional/legacy/088_conceal_tabs_spec.lua
new file mode 100644
index 0000000000..c78f4e5c3e
--- /dev/null
+++ b/test/functional/legacy/088_conceal_tabs_spec.lua
@@ -0,0 +1,96 @@
+-- Tests for correct display (cursor column position) with +conceal and
+-- tabulators.
+
+local helpers = require('test.functional.helpers')
+local feed, insert, clear, execute =
+  helpers.feed, helpers.insert, helpers.clear, helpers.execute
+
+local expect_pos = function(row, col)
+  return helpers.eq({row, col}, helpers.eval('[screenrow(), screencol()]'))
+end
+
+describe('cursor and column position with conceal and tabulators', function()
+  setup(clear)
+
+  it('are working', function()
+    insert([[
+      start:
+      .concealed.     text
+      |concealed|	text
+      
+      	.concealed.	text
+      	|concealed|	text
+      
+      .a.	.b.	.c.	.d.
+      |a|	|b|	|c|	|d|]])
+
+    -- Conceal settings.
+    execute('set conceallevel=2')
+    execute('set concealcursor=nc')
+    execute('syntax match test /|/ conceal')
+    -- Start test.
+    execute('/^start:')
+    feed('ztj')
+    expect_pos(2, 1)
+    -- We should end up in the same column when running these commands on the
+    -- two lines.
+    feed('ft')
+    expect_pos(2, 17)
+    feed('$')
+    expect_pos(2, 20)
+    feed('0j')
+    expect_pos(3, 1)
+    feed('ft')
+    expect_pos(3, 17)
+    feed('$')
+    expect_pos(3, 20)
+    feed('j0j')
+    expect_pos(5, 8)
+    -- Same for next test block.
+    feed('ft')
+    expect_pos(5, 25)
+    feed('$')
+    expect_pos(5, 28)
+    feed('0j')
+    expect_pos(6, 8)
+    feed('ft')
+    expect_pos(6, 25)
+    feed('$')
+    expect_pos(6, 28)
+    feed('0j0j')
+    expect_pos(8, 1)
+    -- And check W with multiple tabs and conceals in a line.
+    feed('W')
+    expect_pos(8, 9)
+    feed('W')
+    expect_pos(8, 17)
+    feed('W')
+    expect_pos(8, 25)
+    feed('$')
+    expect_pos(8, 27)
+    feed('0j')
+    expect_pos(9, 1)
+    feed('W')
+    expect_pos(9, 9)
+    feed('W')
+    expect_pos(9, 17)
+    feed('W')
+    expect_pos(9, 25)
+    feed('$')
+    expect_pos(9, 26)
+    execute('set lbr')
+    feed('$')
+    expect_pos(9, 26)
+    execute('set list listchars=tab:>-')
+    feed('0')
+    expect_pos(9, 1)
+    feed('W')
+    expect_pos(9, 9)
+    feed('W')
+    expect_pos(9, 17)
+    feed('W')
+    expect_pos(9, 25)
+    feed('$')
+    expect_pos(9, 26)
+  end)
+end)