updated for version 7.4.315
Problem: Fixes for computation of topline not tested.
Solution: Add test. (Hirohito Higashi)
diff --git a/src/testdir/test107.in b/src/testdir/test107.in
new file mode 100644
index 0000000..9143380
--- /dev/null
+++ b/src/testdir/test107.in
@@ -0,0 +1,38 @@
+Tests for adjusting window and contents vim: set ft=vim :
+
+STARTTEST
+:so small.vim
+:new
+:call setline(1, range(1,256))
+:let r=[]
+:func! GetScreenStr(row)
+: let str = ""
+: for c in range(1,3)
+: let str .= nr2char(screenchar(a:row, c))
+: endfor
+: return str
+:endfunc
+:
+:exe ":norm! \<C-W>t\<C-W>=1Gzt\<C-W>w\<C-W>+"
+:let s3=GetScreenStr(1)
+:wincmd p
+:call add(r, [line("w0"), s3])
+:
+:exe ":norm! \<C-W>t\<C-W>=50Gzt\<C-W>w\<C-W>+"
+:let s3=GetScreenStr(1)
+:wincmd p
+:call add(r, [line("w0"), s3])
+:
+:exe ":norm! \<C-W>t\<C-W>=59Gzt\<C-W>w\<C-W>+"
+:let s3=GetScreenStr(1)
+::wincmd p
+:call add(r, [line("w0"), s3])
+:
+:bwipeout!
+:$put=r
+:call garbagecollect(1)
+:"
+:/^start:/,$wq! test.out
+ENDTEST
+
+start: