+### Test Buildsystem::rmdir_builddir()
+sub do_rmdir_builddir {
+ my $builddir=shift;
+ my $system;
+ $system = $BS_CLASS->new(builddir => $builddir, sourcedir => $tmpdir);
+ $system->mkdir_builddir();
+ $system->rmdir_builddir();
+}
+
+$builddir = "$tmpdir/builddir";
+do_rmdir_builddir($builddir);
+ok ( ! -e $builddir, "testing rmdir_builddir() 1: builddir parent '$builddir' deleted" );
+ok ( -d $tmpdir, "testing rmdir_builddir() 1: sourcedir '$tmpdir' remains" );
+
+$builddir = "$tmpdir/bld";
+do_rmdir_builddir("$builddir/dir");
+ok ( ! -e $builddir, "testing rmdir_builddir() 2: builddir parent '$builddir' deleted" );
+ok ( -d $tmpdir, "testing rmdir_builddir() 2: sourcedir '$tmpdir' remains" );
+
+$builddir = "$tmpdir/bld";
+mkdir "$builddir";
+touch "$builddir/afile";
+mkdir "$builddir/dir";
+touch "$builddir/dir/afile2";
+do_rmdir_builddir("$builddir/dir");
+ok ( ! -e "$builddir/dir", "testing rmdir_builddir() 3: builddir '$builddir/dir' not empty, but deleted" );
+ok ( -d $builddir, "testing rmdir_builddir() 3: builddir parent '$builddir' not empty, remains" );
+
+cleandir $tmpdir;
+