Reproduce RUMS-5184: Missing request duration breakdown (ResourceId UUID mismatch)

[mariusc83]

Reproduction for RUMS-5184

Jira: RUMS-5184

Issue Summary

Request duration breakdown (DNS, connect, SSL, TTFB, download) is missing from Android RUM Resource events. The bug was introduced when DatadogEventListener.Factory.create() was changed to call buildResourceId(generateUuid = true), generating a UUID that never matches the one registered by DatadogInterceptor.

Root Cause

DatadogEventListener.Factory.create() calls buildResourceId(generateUuid = true), producing ResourceId(key, UUID_B). DatadogInterceptor.intercept() independently calls buildResourceId(generateUuid = true), producing ResourceId(key, UUID_A). Since ResourceId.equals() requires both UUIDs to match when both are non-null, and UUID_A ≠ UUID_B (independently generated), every waitForResourceTiming and addResourceTiming call from the EventListener fails to find the matching RumResourceScope. The timing field remains null and the resource event is serialized without any breakdown fields.

Reproduction Tests

• Unit tests: 2 (in DatadogEventListenerFactoryTest, ResourceIdTest)

What the Tests Prove

• DatadogEventListenerFactoryTest: Factory.create() returns a DatadogEventListener whose key.uuid is non-null (a random UUID). The test asserts it should be null, and FAILS — proving the mismatch.
• ResourceIdTest: Documents the equality contract — two ResourceId instances with the same key but independently generated UUIDs are never equal, which is the mechanism that makes the mismatch fatal.

Key Failure Output

[Factory.create() must produce a ResourceId with uuid=null so it can match
 the interceptor's ResourceId via key-only fallback. Non-null uuid causes UUID mismatch
 → timing fields are never set → request duration breakdown is missing (RUMS-5184).]
Expecting: <"9d17cb95-1953-4216-b9cb-ea8fc1564fbd">
to be equal to: <null>
but was not.

Call Chain

DatadogInterceptor.intercept()
  → buildResourceId(generateUuid=true) → ResourceId(key, UUID_A)
  → startResource(ResourceId(key, UUID_A))                         [creates RumResourceScope]

DatadogEventListener.Factory.create()
  → buildResourceId(generateUuid=true) → ResourceId(key, UUID_B)   [UUID_B ≠ UUID_A]

DatadogEventListener.dnsStart/connectStart/… → waitForResourceTiming(ResourceId(key, UUID_B))
  → RumResourceScope.handleEvent() → key check FAILS (UUID_A ≠ UUID_B) → waitForTiming never set

DatadogEventListener.callEnd() → addResourceTiming(ResourceId(key, UUID_B), timing)
  → RumResourceScope.onAddResourceTiming() → key check FAILS → timing field never set

DatadogInterceptor.handleResponse() → stopResource(buildResourceId(generateUuid=false))
  → key-only match succeeds → RumResourceScope serialized with timing=null
  → ResourceEvent has no dns/connect/ssl/firstByte/download breakdown

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