GCP BigQuery Pipeline: Testing & Validation

[JGrubb]

Overview

Create comprehensive test suite for GCP BigQuery pipeline including unit tests, integration tests, and test data generation.

Tasks

• Unit tests for GCP configuration and authentication
• Unit tests for BigQuery client and query generation
• Integration tests for full pipeline execution
• Mock BigQuery responses for testing
• Test data generators for GCP billing format
• Performance and error handling tests

Acceptance Criteria

• Test coverage matches AWS pipeline standards
• Tests can run without actual GCP credentials
• Integration tests validate end-to-end functionality
• Test data generators create realistic GCP billing data

Dependencies

• Issue GCP BigQuery Pipeline: Core Pipeline Implementation #51 (Core Pipeline Implementation)

Architecture

• Follow tests/unit/aws/ and tests/integration/aws/ patterns
• Create tests/unit/gcp/ and tests/integration/gcp/
• Integrate with existing test framework