1 files changed, 35 insertions, 0 deletions
diff --git a/test/functional/legacy/searchpos_spec.lua b/test/functional/legacy/searchpos_spec.lua
new file mode 100644
index 0000000000..1c9b1ccee6
--- /dev/null
+++ b/test/functional/legacy/searchpos_spec.lua
@@ -0,0 +1,35 @@
+local helpers = require('test.functional.helpers')
+local call = helpers.call
+local clear = helpers.clear
+local execute = helpers.execute
+local eq = helpers.eq
+local eval = helpers.eval
+local insert = helpers.insert
+
+describe('searchpos', function()
+  before_each(clear)
+
+  it('is working', function()
+    insert([[
+      1a3
+      123xyz]])
+
+    call('cursor', 1, 1)
+    eq({1, 1, 2}, eval([[searchpos('\%(\([a-z]\)\|\_.\)\{-}xyz', 'pcW')]]))
+    call('cursor', 1, 2)
+    eq({2, 1, 1}, eval([[searchpos('\%(\([a-z]\)\|\_.\)\{-}xyz', 'pcW')]]))
+
+    execute('set cpo-=c')
+    call('cursor', 1, 2)
+    eq({1, 2, 2}, eval([[searchpos('\%(\([a-z]\)\|\_.\)\{-}xyz', 'pcW')]]))
+    call('cursor', 1, 3)
+    eq({1, 3, 1}, eval([[searchpos('\%(\([a-z]\)\|\_.\)\{-}xyz', 'pcW')]]))
+
+    -- Now with \zs, first match is in column 0, "a" is matched.
+    call('cursor', 1, 3)
+    eq({2, 4, 2}, eval([[searchpos('\%(\([a-z]\)\|\_.\)\{-}\zsxyz', 'pcW')]]))
+    -- With z flag start at cursor column, don't see the "a".
+    call('cursor', 1, 3)
+    eq({2, 4, 1}, eval([[searchpos('\%(\([a-z]\)\|\_.\)\{-}\zsxyz', 'pcWz')]]))
+  end)
+end)