Add test case for SSL async resume after resume
Add a test case for SSL asynchronous signature where f_async_resume is
called twice. Verify that f_async_sign_start is only called once.
This serves as a non-regression test for a bug where f_async_sign_start
was only called once, which turned out to be due to a stale build
artifacts with mismatched numerical values of
MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS.
diff --git a/tests/ssl-opt.sh b/tests/ssl-opt.sh
index 6261225..bf7d914 100755
--- a/tests/ssl-opt.sh
+++ b/tests/ssl-opt.sh
@@ -4088,6 +4088,18 @@
-s "Async resume (slot [0-9]): call 0 more times." \
-s "Async resume (slot [0-9]): sign done, status=0"
+requires_config_enabled MBEDTLS_SSL_ASYNC_PRIVATE
+run_test "SSL async private: sign, delay=2" \
+ "$P_SRV \
+ async_operations=s async_private_delay1=2 async_private_delay2=2" \
+ "$P_CLI" \
+ 0 \
+ -s "Async sign callback: using key slot " \
+ -U "Async sign callback: using key slot " \
+ -s "Async resume (slot [0-9]): call 1 more times." \
+ -s "Async resume (slot [0-9]): call 0 more times." \
+ -s "Async resume (slot [0-9]): sign done, status=0"
+
# Test that the async callback correctly signs the 36-byte hash of TLS 1.0/1.1
# with RSA PKCS#1v1.5 as used in TLS 1.0/1.1.
requires_config_enabled MBEDTLS_SSL_ASYNC_PRIVATE