# Standalone

## Overview

The `standalone` package contains a single JUnit test class, `OrderServiceTestStandalone`, which serves as an isolated test scaffold for `OrderService`. It is entirely self-contained with no external dependencies or cross-module relationships, making it a true "standalone" unit test entry point.

## Key Classes

### OrderServiceTestStandalone

**Source:** [`OrderServiceTestStandalone`](story2-test-code/standalone/OrderServiceTest.java:4)

A JUnit 4 test class with a single placeholder test method. This class currently does not assert any behavior — it appears to be a scaffold intended to be populated with tests for an `OrderService` class that resides outside this package.

| Member | Return Type | Lines | Description |
|---|---|---|---|
| `test()` | `void` | 4–4 | An empty `@Test` method. Serves as a stub to be filled in with actual assertions. |

#### Method details

**`test()`**

- **Purpose:** Placeholder test method for `OrderService` functionality.
- **Parameters:** None.
- **Returns:** Nothing (`void`).
- **Behavior:** Currently a no-op. The method body is empty and therefore always passes.
- **Side effects:** None.
- **Next steps:** Engineers should replace this with real test logic — instantiate `OrderService`, exercise its methods, and assert expected outcomes.

## How It Works

The module is intentionally minimal. There is no orchestration flow, algorithm, or business logic to trace. The only activity is the JUnit test runner discovering the `@Test`-annotated `test()` method and executing it.

```mermaid
flowchart LR
  JUnit["JUnit Test Runner"] --> Exec["executes test()"]
  Exec --> Pass["test() returns
  (no-op, always passes)"]
```

## Data Model

This module does not define any data model classes, DTOs, or entities. It is purely a test harness.

## Dependencies and Integration

- **No package dependencies.** The class imports only `org.junit.Test` from the JUnit framework.
- **No cross-module relationships** were detected. It does not reference or depend on any classes in other packages within this repository.
- **Implicit dependency:** The class name suggests it is intended to test an `OrderService` class, but that service is not present in this package or index. The actual `OrderService` likely lives in a separate module.

## Notes for Developers

- **This is a placeholder.** The empty `test()` method always passes and provides no regression safety. It should be replaced with meaningful assertions before being considered production-ready.
- **Naming convention.** The class name `OrderServiceTestStandalone` uses "Standalone" as a suffix to distinguish it from other `OrderServiceTest` variants that may exist in different packages (e.g., integration tests, mock-heavy tests). Keep this convention if you create related test classes.
- **JUnit 4 style.** The test uses JUnit 4 annotations (`@Test`). If the project migrates to JUnit 5, the annotation will need to change to `org.junit.jupiter.api.Test`.
- **Extension point.** When implementing tests for `OrderService`, you can instantiate the service directly (since this test is standalone with no mocking framework dependency) or introduce a mock library such as Mockito if `OrderService` has external collaborators.