# Utils

## Overview

The `utils` package is a test-code subpackage that lives under `story2-test-code`. It currently contains a single class, `ImportOnlyTest`, which serves as a minimal placeholder used for import-related test scenarios. This class exists within the test harness used to exercise or validate behavior around Java import analysis (hence the `story2-test-code` parent context).

## Key Classes

### ImportOnlyTest

**Source:** [`ImportOnlyTest.java`](story2-test-code/src/utils/ImportOnlyTest.java)

`ImportOnlyTest` is an empty class in the `utils` package that imports `org.junit.Test` but does not reference it. It has no fields, constructors, or methods — its body is empty.

This class appears to be a placeholder test fixture used to exercise import-related analysis in the surrounding codebase. The presence of the `org.junit.Test` import without any corresponding test methods suggests the class was designed to test how tools, static analyzers, or linter rules handle Java files that declare imports but never use them.

| Aspect        | Detail                                                                 |
|---------------|------------------------------------------------------------------------|
| Package       | `utils`                                                                |
| Class type    | `public class`                                                         |
| Fields        | None                                                                   |
| Methods       | None                                                                   |
| Superclass    | `Object` (implicit, no explicit superclass)                            |
| Direct deps   | `org.junit.Test` (imported but unused)                                 |

#### Design rationale

The name `ImportOnlyTest` is self-describing: it is a test class whose sole observable characteristic is its *import* statements. In a test code suite, such a class is useful for:

- **Verifying import-usage detectors** — ensuring a tool correctly identifies unused imports.
- **Testing import-only parsing** — confirming that code scanners or indexers do not crash or produce false positives when encountering a file with imports but no methods or fields.
- **Serving as a control** — a known-minimal class against which other behavior can be measured.

## How It Works

There is no runtime behavior in this module. The class is empty — it does nothing when executed. Its purpose is purely declarative: it exists as an artifact that external tooling or tests can observe and validate.

## Class Relationships

```mermaid
flowchart LR
    subgraph utils["utils package"]
        I["ImportOnlyTest"]
    end
    I --> J["org.junit.Test
(imported, unused)"]
```

The class has one import dependency (`org.junit.Test`) which it does not use. There are no other classes in this package to interact with.

## Dependencies and Integration

| Dependency          | Type    | Usage                          |
|---------------------|---------|--------------------------------|
| `org.junit.Test`    | import  | Declared but never referenced  |

This module has no cross-module relationships and no package-level dependencies beyond the JUnit import shown above. It is self-contained and does not interact with any other subsystem.

## Notes for Developers

- **This class has no methods.** Despite its name suggesting it could be a JUnit test class, it does not contain any test methods and will not be picked up by JUnit's test runner.
- **The unused import is intentional** — it is the defining characteristic of the class. Removing the import would defeat the class's purpose.
- **Extension point.** If the `story2-test-code` harness grows to require additional test fixtures, new classes can be added to this package. The naming convention suggests that test classes here should be named to reflect what they are exercising (e.g., `UnusedImportTest`, `MethodlessClassTest`, etc.).