patch 8.0.0762: ml_get error with :psearch in buffer without a name
Problem: ml_get error with :psearch in buffer without a name. (Dominique
Pelle)
Solution: Use the buffer number instead of the file name. Check the cursor
position.
diff --git a/src/testdir/test_preview.vim b/src/testdir/test_preview.vim
new file mode 100644
index 0000000..91923fb
--- /dev/null
+++ b/src/testdir/test_preview.vim
@@ -0,0 +1,13 @@
+" Tests for the preview window
+
+func Test_Psearch()
+ " this used to cause ml_get errors
+ help
+ let wincount = winnr('$')
+ 0f
+ ps.
+ call assert_equal(wincount + 1, winnr('$'))
+ pclose
+ call assert_equal(wincount, winnr('$'))
+ bwipe
+endfunc