Commit 4eab5e3bb2 for openssl.org

commit 4eab5e3bb2d17e44da2c9d22e56085b700841788
Author: Andrew Dinh <andrewd@openssl.org>
Date:   Wed Jul 1 23:37:34 2026 +0700

    Port script12

    Assisted-by: Claude:claude-sonnet-4-6

    Reviewed-by: Neil Horman <nhorman@openssl.org>
    Reviewed-by: Saša Nedvědický <sashan@openssl.org>
    MergeDate: Fri Jul 17 08:02:03 2026
    (Merged from https://github.com/openssl/openssl/pull/31821)

diff --git a/test/quic_multistream_test.c b/test/quic_multistream_test.c
index a8dae2966a..b9b263fe94 100644
--- a/test/quic_multistream_test.c
+++ b/test/quic_multistream_test.c
@@ -2080,38 +2080,8 @@ static const struct script_op script_11[] = {
 };

 /* 12. Many threads initiated on the same client connection */
-static const struct script_op script_12_child[] = {
-    OP_C_NEW_STREAM_BIDI(a, ANY_ID),
-    OP_C_WRITE(a, "foo", 3),
-    OP_C_CONCLUDE(a),
-    OP_C_FREE_STREAM(a),
-
-    OP_END
-};
-
 static const struct script_op script_12[] = {
-    OP_C_SET_ALPN("ossltest"),
-    OP_C_CONNECT_WAIT(),
-    OP_C_SET_DEFAULT_STREAM_MODE(SSL_DEFAULT_STREAM_MODE_NONE),
-
-    OP_NEW_THREAD(5, script_12_child),
-
-    OP_S_BIND_STREAM_ID(a, C_BIDI_ID(0)),
-    OP_S_READ_EXPECT(a, "foo", 3),
-    OP_S_EXPECT_FIN(a),
-    OP_S_BIND_STREAM_ID(b, C_BIDI_ID(1)),
-    OP_S_READ_EXPECT(b, "foo", 3),
-    OP_S_EXPECT_FIN(b),
-    OP_S_BIND_STREAM_ID(c, C_BIDI_ID(2)),
-    OP_S_READ_EXPECT(c, "foo", 3),
-    OP_S_EXPECT_FIN(c),
-    OP_S_BIND_STREAM_ID(d, C_BIDI_ID(3)),
-    OP_S_READ_EXPECT(d, "foo", 3),
-    OP_S_EXPECT_FIN(d),
-    OP_S_BIND_STREAM_ID(e, C_BIDI_ID(4)),
-    OP_S_READ_EXPECT(e, "foo", 3),
-    OP_S_EXPECT_FIN(e),
-
+    /* test moved to test/radix/quic_tests.c */
     OP_END
 };

diff --git a/test/radix/quic_tests.c b/test/radix/quic_tests.c
index a101cad924..d09c338505 100644
--- a/test/radix/quic_tests.c
+++ b/test/radix/quic_tests.c
@@ -993,11 +993,74 @@ DEF_SCRIPT(script_11, "Many threads accepted on the same client connection")
     OP_SLEEP(10);
 }

+/* 12. Many threads initiated on the same client connection */
+DEF_SCRIPT(script_12_child_0,
+    "child: create stream on C, write, conclude")
 {
+    OP_NEW_STREAM(C, C0, 0 /* bidirectional */);
+    OP_WRITE_B(C0, "foo");
+    OP_CONCLUDE(C0);
+}
+
+DEF_SCRIPT(script_12_child_1,
+    "child: create stream on C, write, conclude")
+{
+    OP_NEW_STREAM(C, C1, 0 /* bidirectional */);
+    OP_WRITE_B(C1, "foo");
+    OP_CONCLUDE(C1);
 }

-DEF_SCRIPT(script_12, "place holder for multistrem script_12")
+DEF_SCRIPT(script_12_child_2,
+    "child: create stream on C, write, conclude")
 {
+    OP_NEW_STREAM(C, C2, 0 /* bidirectional */);
+    OP_WRITE_B(C2, "foo");
+    OP_CONCLUDE(C2);
+}
+
+DEF_SCRIPT(script_12_child_3,
+    "child: create stream on C, write, conclude")
+{
+    OP_NEW_STREAM(C, C3, 0 /* bidirectional */);
+    OP_WRITE_B(C3, "foo");
+    OP_CONCLUDE(C3);
+}
+
+DEF_SCRIPT(script_12_child_4,
+    "child: create stream on C, write, conclude")
+{
+    OP_NEW_STREAM(C, C4, 0 /* bidirectional */);
+    OP_WRITE_B(C4, "foo");
+    OP_CONCLUDE(C4);
+}
+
+DEF_SCRIPT(script_12, "Many threads initiated on the same client connection")
+{
+    OP_SIMPLE_PAIR_CONN_ND();
+    OP_ACCEPT_CONN_WAIT_ND(L, S, 0);
+
+    OP_SPAWN_THREAD(script_12_child_0);
+    OP_SPAWN_THREAD(script_12_child_1);
+    OP_SPAWN_THREAD(script_12_child_2);
+    OP_SPAWN_THREAD(script_12_child_3);
+    OP_SPAWN_THREAD(script_12_child_4);
+
+    OP_ACCEPT_STREAM_WAIT(S, Sa, 0);
+    OP_READ_EXPECT_B(Sa, "foo");
+    OP_EXPECT_FIN(Sa);
+    OP_ACCEPT_STREAM_WAIT(S, Sb, 0);
+    OP_READ_EXPECT_B(Sb, "foo");
+    OP_EXPECT_FIN(Sb);
+    OP_ACCEPT_STREAM_WAIT(S, Sc, 0);
+    OP_READ_EXPECT_B(Sc, "foo");
+    OP_EXPECT_FIN(Sc);
+    OP_ACCEPT_STREAM_WAIT(S, Sd, 0);
+    OP_READ_EXPECT_B(Sd, "foo");
+    OP_EXPECT_FIN(Sd);
+    OP_ACCEPT_STREAM_WAIT(S, Se, 0);
+    OP_READ_EXPECT_B(Se, "foo");
+    OP_EXPECT_FIN(Se);
+    OP_SLEEP(10);
 }

 DEF_SCRIPT(script_13, "place holder for multistrem script_13")