commit 8ea7b3e738d69b44c1496b2b236ef392dcef74c5
author Timothy Chen <timothytim@google.com> Fri Sep 02 16:36:16 2022 -0700
committer Alphan Ulusoy <alphan@google.com> Sat Sep 03 11:05:13 2022 -0400
tree 4ba82e6850be4cbb9fb0b09e4ac745148194ec25
parent bff9b7bd0f21b46288217f2b1ce913cc1761d29e

[sw] Add a temporary static check for number of alerts

see #14038

- when the number of alerts change, it can impact the
  crc digest calculated by rom and stored in rom.

- as such, explicitly error in the unittest for now so
  that the user is aware of such a change.

Signed-off-by: Timothy Chen <timothytim@google.com>

sw/device/lib/dif/dif_alert_handler_unittest.cc

diff --git a/sw/device/lib/dif/dif_alert_handler_unittest.cc b/sw/device/lib/dif/dif_alert_handler_unittest.cc
index 061b6ab..8f71759 100644
--- a/sw/device/lib/dif/dif_alert_handler_unittest.cc
+++ b/sw/device/lib/dif/dif_alert_handler_unittest.cc
@@ -25,6 +25,14 @@
 using ::testing::_;
 using ::testing::Return;
 
+// If the assert below fails, please look at #14038.
+// A digest is calculated for the configuration of the alerts,
+// so if the number of alerts change, the digest will be changed
+// as well.  This process is not yet automated, so the user
+// must be aware on how to update the value.
+static_assert(ALERT_HANDLER_PARAM_N_ALERTS == 65,
+              "The number of alerts have changed.");
+
 constexpr int kAlerts = ALERT_HANDLER_PARAM_N_ALERTS;
 constexpr int kLocalAlerts = ALERT_HANDLER_PARAM_N_LOC_ALERT;
 constexpr int kClasses = ALERT_HANDLER_PARAM_N_CLASSES;