[vala/wip/issue/658: 41/48] Added inner ownership test for anonymous delegates

[Rico Tzschichholz <ricotz src gnome org>]

commit 53104f63092cb4fe5dfc45a2babd89d8f69481bd
Author: Nick Schrader <nick schrader mailbox org>
Date:   Sun Oct 25 23:39:31 2020 -0300

    Added inner ownership test for anonymous delegates

 tests/Makefile.am                                  |  1 +
 tests/delegates/anonymous-inner-owned-unowned.vala | 41 ++++++++++++++++++++++
 2 files changed, 42 insertions(+)
---
diff --git a/tests/Makefile.am b/tests/Makefile.am
index ba5f24a1d..8c5e23412 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -342,6 +342,7 @@ TESTS = \
        delegates/anonymous-array.vala \
        delegates/anonymous-generics.test \
        delegates/anonymous-inner-ref-out.vala \
+       delegates/anonymous-inner-owned-unowned.vala \
        delegates/anonymous-optional-param.test \
        delegates/anonymous-out.test \
        delegates/anonymous-params.test \
diff --git a/tests/delegates/anonymous-inner-owned-unowned.vala 
b/tests/delegates/anonymous-inner-owned-unowned.vala
new file mode 100644
index 000000000..e34e32c97
--- /dev/null
+++ b/tests/delegates/anonymous-inner-owned-unowned.vala
@@ -0,0 +1,41 @@
+[Compact]
+class Aaa {
+    public int i = 42;
+}
+
+class Bbb {
+    Aaa a = new Aaa();
+
+    public unowned Aaa get_a() {
+        unowned Aaa x = a;
+        a = null;
+        return x;
+    }
+}
+
+void p(delegate(owned Aaa) => void d) {
+    var a = new Aaa();
+    d ((owned) a);
+    assert (a == null);
+}
+
+void q(delegate(Aaa) => void d) {
+    var a = new Aaa();
+    d (a);
+    assert (a.i == 42);
+}
+
+void r(delegate() => Aaa d) {
+    assert (d ().i == 42);
+}
+
+void s(delegate() => unowned Aaa d) {
+    assert (d ().i != 42);
+}
+
+void main () {
+    p((a) => assert (a.i == 42));
+    q((a) => assert (a.i == 42));
+    r(() => new Aaa());
+    s(new Bbb().get_a);
+}