# E2E Test Data Template

Save as `PLANS_DIR/integration_tests/test_data.md`.

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```markdown
# E2E Test Data Management

## Seed Data Sets

| Data Set | Description | Used by Tests | How Loaded | Cleanup |
|----------|-------------|---------------|-----------|---------|
| [name] | [what it contains] | [test IDs] | [SQL script / API call / fixture file / volume mount] | [how removed after test] |

## Data Isolation Strategy

[e.g., each test run gets a fresh container restart, or transactions are rolled back, or namespaced data, or separate DB per test group]

## Input Data Mapping

| Input Data File | Source Location | Description | Covers Scenarios |
|-----------------|----------------|-------------|-----------------|
| [filename] | `_docs/00_problem/input_data/[filename]` | [what it contains] | [test IDs that use this data] |

## External Dependency Mocks

| External Service | Mock/Stub | How Provided | Behavior |
|-----------------|-----------|-------------|----------|
| [service name] | [mock type] | [Docker service / in-process stub / recorded responses] | [what it returns / simulates] |

## Data Validation Rules

| Data Type | Validation | Invalid Examples | Expected System Behavior |
|-----------|-----------|-----------------|------------------------|
| [type] | [rules] | [invalid input examples] | [how system should respond] |
```

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## Guidance Notes

- Every seed data set should be traceable to specific test scenarios.
- Input data from `_docs/00_problem/input_data/` should be mapped to test scenarios that use it.
- External mocks must be deterministic — same input always produces same output.
- Data isolation must guarantee no test can affect another test's outcome.