Test Data Generation Strategy

Create a comprehensive test data strategy for:

**Application:** {{APP_NAME}}
**Data Entities:**
{{ENTITIES_LIST}}

**Entity Relationships:**
{{RELATIONSHIPS}}

**Data Requirements:**
- Volume: {{DATA_VOLUME}} records
- Environments: {{ENVIRONMENTS}}
- Compliance: {{COMPLIANCE_REQUIREMENTS}} (GDPR/HIPAA/PCI)

**Test Data Categories:**

1. **Valid Data Sets:**
   - Typical values
   - Boundary values
   - Various formats

2. **Invalid Data Sets:**
   - Missing required fields
   - Invalid formats
   - Out-of-range values
   - Special characters

3. **Edge Cases:**
   - Maximum field lengths
   - Unicode characters
   - Empty strings vs null

4. **Performance Data:**
   - Large datasets
   - Complex relationships

**Generate:**
- Data generation scripts (Faker.js/Python Faker)
- SQL insert scripts
- JSON fixtures
- Data masking rules
- Synthetic data patterns
- Data refresh strategy