Patched <1 resolution bug in reference VHAL

Bug: 341142440
Test: atest DefaultVehicleHalTest
Change-Id: Iced15350a53580a726df5eca87de9409b155c0ca
diff --git a/automotive/vehicle/aidl/impl/vhal/src/SubscriptionManager.cpp b/automotive/vehicle/aidl/impl/vhal/src/SubscriptionManager.cpp
index f1106ee..d6d12d0 100644
--- a/automotive/vehicle/aidl/impl/vhal/src/SubscriptionManager.cpp
+++ b/automotive/vehicle/aidl/impl/vhal/src/SubscriptionManager.cpp
@@ -40,6 +40,7 @@
 using ::android::base::StringPrintf;
 using ::ndk::ScopedAStatus;
 
+constexpr float EPSILON = 0.0000001;
 constexpr float ONE_SECOND_IN_NANOS = 1'000'000'000.;
 
 SubscribeOptions newSubscribeOptions(int32_t propId, int32_t areaId, float sampleRateHz,
@@ -88,7 +89,7 @@
     }
 
     float log = std::log10(resolution);
-    return log == (int)log;
+    return std::abs(log - std::round(log)) < EPSILON;
 }
 
 void ContSubConfigs::refreshCombinedConfig() {
diff --git a/automotive/vehicle/aidl/impl/vhal/test/SubscriptionManagerTest.cpp b/automotive/vehicle/aidl/impl/vhal/test/SubscriptionManagerTest.cpp
index f377202..440a9f9 100644
--- a/automotive/vehicle/aidl/impl/vhal/test/SubscriptionManagerTest.cpp
+++ b/automotive/vehicle/aidl/impl/vhal/test/SubscriptionManagerTest.cpp
@@ -521,6 +521,8 @@
 }
 
 TEST_F(SubscriptionManagerTest, testCheckResolutionValid) {
+    ASSERT_TRUE(SubscriptionManager::checkResolution(0.0));
+    ASSERT_TRUE(SubscriptionManager::checkResolution(0.1));
     ASSERT_TRUE(SubscriptionManager::checkResolution(1.0));
 }