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Unify counter clamp arithmetic into shared addClamped() helper

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Rename MAX_COUNTERS_ON_CARD to MAX_COUNTER_VALUE

  Add addClamped() in trice_limits.h, which uses a 64-bit intermediate so
  the addition cannot overflow int. Both Server_Card and Server_Counter use it.

  Add optional [minValue, maxValue] bounds to Server_Counter; setCount()
  and incrementCount() both clamp. Defaults are unbounded, so existing
  callers are unaffected.
This commit is contained in:
DawnFire42 2026-06-19 12:20:50 -04:00
parent 687e6644bc
commit 80946b2fd4
8 changed files with 114 additions and 50 deletions
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16
tests/server_card_counter_test.cpp
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@ -28,9 +28,9 @@ TEST(ServerCardCounter, IncrementExistingCounter)
TEST(ServerCardCounter, IncrementOverflowProtection)
{
Server_Card card(CardRef{"TestCard", ""}, 1, 0, 0);
ASSERT_TRUE(card.setCounter(1, MAX_COUNTERS_ON_CARD));
ASSERT_TRUE(card.setCounter(1, MAX_COUNTER_VALUE));
EXPECT_FALSE(card.incrementCounter(1, 1));
EXPECT_EQ(card.getCounter(1), MAX_COUNTERS_ON_CARD);
EXPECT_EQ(card.getCounter(1), MAX_COUNTER_VALUE);
}
TEST(ServerCardCounter, DecrementUnderflowProtection)
@ -113,13 +113,13 @@ TEST(ServerCardCounter, IncrementCounterPopulatesEvent)
TEST(ServerCardCounter, IncrementCounterEventReflectsClampedValue)
{
Server_Card card(CardRef{"TestCard", ""}, 1, 0, 0);
ASSERT_TRUE(card.setCounter(1, MAX_COUNTERS_ON_CARD - 5));
ASSERT_TRUE(card.setCounter(1, MAX_COUNTER_VALUE - 5));
Event_SetCardCounter event;
EXPECT_TRUE(card.incrementCounter(1, 10, &event));
EXPECT_EQ(event.counter_id(), 1);
EXPECT_EQ(event.counter_value(), MAX_COUNTERS_ON_CARD);
EXPECT_EQ(event.counter_value(), MAX_COUNTER_VALUE);
}
TEST(ServerCardCounter, IncrementCounterNoEventWhenNullptr)
@ -133,7 +133,7 @@ TEST(ServerCardCounter, IncrementCounterNoEventWhenNullptr)
TEST(ServerCardCounter, IncrementCounterEventNotPopulatedWhenUnchanged)
{
Server_Card card(CardRef{"TestCard", ""}, 1, 0, 0);
ASSERT_TRUE(card.setCounter(1, MAX_COUNTERS_ON_CARD));
ASSERT_TRUE(card.setCounter(1, MAX_COUNTER_VALUE));
Event_SetCardCounter event;
event.set_counter_id(999);
@ -156,7 +156,7 @@ TEST(ServerCardCounter, SetCounterClampsAboveMaxToMax)
{
Server_Card card(CardRef{"TestCard", ""}, 1, 0, 0);
EXPECT_TRUE(card.setCounter(1, 1500));
EXPECT_EQ(card.getCounter(1), MAX_COUNTERS_ON_CARD);
EXPECT_EQ(card.getCounter(1), MAX_COUNTER_VALUE);
}
TEST(ServerCardCounter, IncrementDoesNotGoBelowZero)
@ -171,9 +171,9 @@ TEST(ServerCardCounter, IncrementDoesNotGoBelowZero)
TEST(ServerCardCounter, IncrementDoesNotExceedMax)
{
Server_Card card(CardRef{"TestCard", ""}, 1, 0, 0);
ASSERT_TRUE(card.setCounter(1, MAX_COUNTERS_ON_CARD - 5));
ASSERT_TRUE(card.setCounter(1, MAX_COUNTER_VALUE - 5));
EXPECT_TRUE(card.incrementCounter(1, 10));
EXPECT_EQ(card.getCounter(1), MAX_COUNTERS_ON_CARD);
EXPECT_EQ(card.getCounter(1), MAX_COUNTER_VALUE);
}
int main(int argc, char **argv)