fix(ios): honor _experiments.enableUnhandledCPPExceptionsV2 on v8

CHANGELOG.md

@@ -19,6 +19,7 @@
 ### Fixes
 
 - Fix iOS UI profiling options being silently ignored ([#6012](https://github.com/getsentry/sentry-react-native/pull/6012))
+- Fix `_experiments.enableUnhandledCPPExceptionsV2` being silently ignored on iOS ([#6014](https://github.com/getsentry/sentry-react-native/pull/6014))
 - Check `captureReplay` return value in iOS bridge to avoid linking error events to uncaptured replays ([#6008](https://github.com/getsentry/sentry-react-native/pull/6008))
 - Report the expected properties file path and any missing keys when using `flavorAware` on Android, instead of failing with an opaque `Illegal null value provided in this collection` error ([#6031](https://github.com/getsentry/sentry-react-native/pull/6031))
 

packages/core/RNSentryCocoaTester/RNSentryCocoaTesterTests/RNSentryTests.m

@@ -1471,6 +1471,60 @@ - (void)testStartCreateOptionsWithDictionaryEmptyExperimentsDoesNotInstallConfig
 }
 #endif
 
+- (void)testStartCreateOptionsWithDictionaryEnableUnhandledCPPExceptionsV2Enabled
+{
+    NSError *error = nil;
+
+    NSDictionary *_Nonnull mockedReactNativeDictionary = @{
+        @"dsn" : @"https://abcd@efgh.ingest.sentry.io/123456",
+        @"_experiments" : @ {
+            @"enableUnhandledCPPExceptionsV2" : @YES,
+        },
+    };
+    SentryOptions *actualOptions =
+        [RNSentryStart createOptionsWithDictionary:mockedReactNativeDictionary error:&error];
+
+    XCTAssertNotNil(actualOptions, @"Did not create sentry options");
+    XCTAssertNil(error, @"Should not pass no error");
+    XCTAssertTrue(actualOptions.experimental.enableUnhandledCPPExceptionsV2,
+        @"enableUnhandledCPPExceptionsV2 should be enabled");
+}
+
+- (void)testStartCreateOptionsWithDictionaryEnableUnhandledCPPExceptionsV2Disabled
+{
+    NSError *error = nil;
+
+    NSDictionary *_Nonnull mockedReactNativeDictionary = @{
+        @"dsn" : @"https://abcd@efgh.ingest.sentry.io/123456",
+        @"_experiments" : @ {
+            @"enableUnhandledCPPExceptionsV2" : @NO,
+        },
+    };
+    SentryOptions *actualOptions =
+        [RNSentryStart createOptionsWithDictionary:mockedReactNativeDictionary error:&error];
+
+    XCTAssertNotNil(actualOptions, @"Did not create sentry options");
+    XCTAssertNil(error, @"Should not pass no error");
+    XCTAssertFalse(actualOptions.experimental.enableUnhandledCPPExceptionsV2,
+        @"enableUnhandledCPPExceptionsV2 should be disabled");
+}
+
+- (void)testStartCreateOptionsWithDictionaryEnableUnhandledCPPExceptionsV2Default
+{
+    NSError *error = nil;
+
+    NSDictionary *_Nonnull mockedReactNativeDictionary = @{
+        @"dsn" : @"https://abcd@efgh.ingest.sentry.io/123456",
+    };
+    SentryOptions *actualOptions =
+        [RNSentryStart createOptionsWithDictionary:mockedReactNativeDictionary error:&error];
+
+    XCTAssertNotNil(actualOptions, @"Did not create sentry options");
+    XCTAssertNil(error, @"Should not pass no error");
+    XCTAssertFalse(actualOptions.experimental.enableUnhandledCPPExceptionsV2,
+        @"enableUnhandledCPPExceptionsV2 should default to disabled");
+}
+
 - (void)testStartEventFromSentryCocoaReactNativeHasOriginAndEnvironmentTags
 {
     SentryEvent *testEvent = [[SentryEvent alloc] init];

packages/core/ios/RNSentryStart.m

@@ -140,9 +140,15 @@ + (SentryOptions *_Nullable)createOptionsWithDictionary:(NSDictionary *_Nonnull)
         }
     }
 
-    // Configure iOS UI Profiling from _experiments.profilingOptions
+    // Configure experimental options from _experiments
     NSDictionary *experiments = mutableOptions[@"_experiments"];
     if (experiments != nil && [experiments isKindOfClass:[NSDictionary class]]) {
+        BOOL enableUnhandledCPPExceptions =
+            [experiments[@"enableUnhandledCPPExceptionsV2"] boolValue];
+        [RNSentryExperimentalOptions setEnableUnhandledCPPExceptionsV2:enableUnhandledCPPExceptions
+                                                         sentryOptions:sentryOptions];
+
+        // Configure iOS UI Profiling
         NSDictionary *profilingOptions = experiments[@"profilingOptions"];
         if (profilingOptions != nil && [profilingOptions isKindOfClass:[NSDictionary class]]) {
             [RNSentryExperimentalOptions configureProfilingWithOptions:profilingOptions