[dotnet] We now pass 22-optional-args.t.

t/nqp/22-optional-args.t

@@ -0,0 +1,30 @@
+#! nqp
+
+# test optional arguments and parameters
+
+plan(3);
+
+sub f1 ($x, $y!, $z?) {
+  $x;
+}
+say('ok ', f1(1, 2), ' # optional args ignorable');
+say('ok ', f1(2, 2, 2), ' # optional args passable');
+
+sub f2 ($x?, $y?) { 'ok 3 # only optional args'; }
+say(f2());
+
+# TODO we can't parse .defined() yet - jg
+#sub f3 ($x, $y?, $text?) {
+#  if ! $y.defined() && ! $text.defined() {
+#    say('ok 4 # unpassed optional args are undef');
+#  } else {
+#    say('ok ', $x - $y, $text);
+#  }
+#}
+#f3(2);
+#f3(8, 3, ' # optional args get passed values');
+#f3(8, :text(' # optional args specifiable by name'), :y(2));
+
+# XXX: need to be able to test that the following is illegal
+#sub f4 ($x?, $y) { $y; }
+