patch 7.4.1123v7.4.1123

Problem:    Using ":argadd" when there are no arguments results in the second
            argument to be the current one. (Yegappan Lakshmanan)
Solution:   Correct the w_arg_idx value.

1 files changed, 52 insertions, 0 deletions

diff --git a/src/testdir/test_arglist.vim b/src/testdir/test_arglist.vim
index 3f72f0ff9c..522631741a 100644
--- a/src/testdir/test_arglist.vim
+++ b/src/testdir/test_arglist.vim
@@ -20,3 +20,55 @@ func Test_argidx()
   1argdelete
   call assert_equal(0, argidx())
 endfunc
+
+func Test_argadd()
+  %argdelete
+  argadd a b c
+  call assert_equal(0, argidx())
+
+  %argdelete
+  argadd a
+  call assert_equal(0, argidx())
+  argadd b c d
+  call assert_equal(0, argidx())
+
+  call Init_abc()
+  argadd x
+  call Assert_argc(['a', 'b', 'x', 'c'])
+  call assert_equal(1, argidx())
+
+  call Init_abc()
+  0argadd x
+  call Assert_argc(['x', 'a', 'b', 'c'])
+  call assert_equal(2, argidx())
+
+  call Init_abc()
+  1argadd x
+  call Assert_argc(['a', 'x', 'b', 'c'])
+  call assert_equal(2, argidx())
+
+  call Init_abc()
+  $argadd x
+  call Assert_argc(['a', 'b', 'c', 'x'])
+  call assert_equal(1, argidx())
+
+  call Init_abc()
+  $argadd x
+  +2argadd y
+  call Assert_argc(['a', 'b', 'c', 'x', 'y'])
+  call assert_equal(1, argidx())
+endfunc
+
+func Init_abc()
+  args a b c
+  next
+endfunc
+
+func Assert_argc(l)
+  call assert_equal(len(a:l), argc())
+  let i = 0
+  while i < len(a:l) && i < argc()
+    call assert_equal(a:l[i], argv(i))
+    let i += 1
+  endwhile
+endfunc