#
#
# add_dir "tests/empty_command_name"
# 
# add_file "tests/empty_command_name/__driver__.lua"
#  content [431f2137b4f89450381281a8b0f909bdc4f9306f]
# 
# patch "commands.cc"
#  from [c16cdb15b8eb7ac70e5c23006e6f3ddf377a8a65]
#    to [d63ab460bfd07e887646fb4e5ead6a5ab4c2d0c8]
# 
# patch "monotone.cc"
#  from [3203fd093d06929ee733eac5eba3eb101abc99d6]
#    to [a2b9556443f70695532d0916c30c2f7379e0f9c9]
#
============================================================
--- commands.cc	c16cdb15b8eb7ac70e5c23006e6f3ddf377a8a65
+++ commands.cc	d63ab460bfd07e887646fb4e5ead6a5ab4c2d0c8
@@ -325,8 +325,6 @@ namespace commands
   {
     map< command_id, command * > matches;
 
-    I(!prefix().empty());
-
     for (children_set::const_iterator iter = children().begin();
          iter != children().end(); iter++)
       {
============================================================
--- monotone.cc	3203fd093d06929ee733eac5eba3eb101abc99d6
+++ monotone.cc	a2b9556443f70695532d0916c30c2f7379e0f9c9
@@ -219,7 +219,6 @@ cpp_main(int argc, char ** argv)
           if (!app.opts.args.empty())
             {
               cmd_id = commands::complete_command(app.opts.args);
-              I(!cmd_id.empty());
             }
 
           // check if the user specified default arguments for this command
============================================================
--- /dev/null	
+++ tests/empty_command_name/__driver__.lua	431f2137b4f89450381281a8b0f909bdc4f9306f
@@ -0,0 +1,7 @@
+mtn_setup()
+
+check(mtn(''), 2, false, true)
+check(qgrep("Usage: ", "stderr"))
+
+check(mtn('ls', ''), 1, false, true)
+check(qgrep("is ambiguous", "stderr"))
\ No newline at end of file