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Tier 2: Real Integration

High-Fidelity
Java Component Testing

Turn production traces into stable component tests. Verify your logic against real databases while virtualizing unstable boundaries with deterministic record/replay.

15min
vs 12h Complex Setup
95%
Less Boilerplate
Fully
Deterministic
Component Testing Tech Stack
KeycloakKeycloak
PostgreSQLPostgreSQL
KafkaKafka
JUnit 5JUnit 5
Spring BootSpring Boot
MongoDBMongoDB
Java 17+Java 17+
RedisRedis
DockerDocker
Zero-Boilerplate SetupNo manual mocks or complex environment orchestration
Deterministic StabilityFixed Time, UUID, and Random values for carbon-copy execution
Hybrid Boundary ReplayIsolate volatile 3rd party APIs while keeping DB and Brokers live
THE COMPONENT TESTING PIPELINE

Reality-Based Testing without the Flakiness

Component tests in BitDive combine the realism of real databases with the speed and determinism of record/replay.

01
STATE CAPTURE

Record Boundaries

BitDive captures the exact state of DB queries, Kafka messages, and HTTP responses. It normalizes this data into a structured "Test Plan" for your component.

02
HYBRID REPLAY

Live DB + Replayed API

Keep your database and brokers live for maximum realism, while replaying external 3rd party APIs (Stripe, Twilio) from recorded "cassettes".

03
DETERMINISM

Execution Stability

Fix UUIDs, Random numbers, and Clock values (Instant.now) to match the recording. Ensure your component tests are highly predictable across every CI run.

IMPLEMENTATION

Zero-Boilerplate Setup

Minimal code, maximum verification surface

Just inherit from `ReplayTestBase` and provide a scenario UUID. BitDive handles the heavy lifting of Spring context boot and boundary interception.

  • ✓Zero-Boilerplate Harness: No manual `@MockBean` lists or complex environment orchestration scripts.
  • ✓Reality-Driven Data: Scenario definitions are loaded as "datasets", separating test data from test code.
  • ✓Strict Verification: Automatically fail tests if unexpected external calls or SQL queries are detected.
INCIDENT RESPONSE

Instant Bug Reproduction

From production failure to green test in minutes

When a scenario fails in production, capture its `scenarioId` and drop it into your Component Test. Replay the exact failure path locally with your debugger attached.

  • ✓Reality-Based Debugging: Stop trying to "recreate" bugs. Replay the actual execution context.
  • ✓Fix Verification: Prove your fix works by replaying the failing scenario against your local code changes.
  • ✓Permanent Regression Check: Automatically turn every incident into a permanent regression safety check.
ISOLATION TIER 2

Smart Integration Isolation

Isolate what matters, keep what's real

BitDive differentiates between "Stateful Infrastructure" (DBs) and "External Services" (HTTP). It keeps your DB logic real while virtualizing volatile networks.

  • ✓HTTP Cassettes: Recorded 3rd party API responses are automatically matched and replayed.
  • ✓SQL Stability: Intelligent matching of queries even if bind parameters or order change slightly.
  • ✓Deterministic Brokers: Intelligent replay ensures your component never misses a Kafka message or event.

Ready to Ship with High Confidence?

Combine the realism of integration tests with the reliability of record/replay. Start your Component Testing journey today.

Book a Demo