# Where Are the Test Files for the SunLicense Library Located?

> Find SunLicense library test files in the top-level test directory. Discover PHPUnit unit tests and a bootstrap runner for quick access and validation.

- Repository: [Mehmet Selcuk Batal/php-license-key-generator](https://github.com/msbatal/php-license-key-generator)
- Tags: testing
- Published: 2026-03-07

---

**The test files for the SunLicense library are located in the repository's top-level `test` directory, which contains [`test/SunLicense.php`](https://github.com/msbatal/php-license-key-generator/blob/main/test/SunLicense.php) for PHPUnit-style unit tests and [`test/index.php`](https://github.com/msbatal/php-license-key-generator/blob/main/test/index.php) as a lightweight bootstrap runner.**

The `msbatal/php-license-key-generator` repository provides a lightweight PHP solution for generating and validating license keys. If you are contributing to or auditing the SunLicense library, knowing where the test files reside is essential for verifying functionality. This guide maps out the exact location and structure of the test suite according to the source code.

## Test Directory Structure

All validation logic for the SunLicense library resides inside the **`test/`** directory at the repository root. Unlike larger PHP projects that nest tests deep within a `tests/` or `phpunit/` hierarchy, this library keeps its verification suite flat and accessible.

### test/SunLicense.php

The primary test class lives at **[`test/SunLicense.php`](https://github.com/msbatal/php-license-key-generator/blob/main/test/SunLicense.php)**. This file implements a PHPUnit-style test suite that exercises the library's public API, including key generation routines and edge-case validation logic. It directly instantiates the `SunLicense` class defined in the root [`SunLicense.php`](https://github.com/msbatal/php-license-key-generator/blob/main/SunLicense.php) file to verify that generated keys pass integrity checks.

### test/index.php

The entry point for running tests is **[`test/index.php`](https://github.com/msbatal/php-license-key-generator/blob/main/test/index.php)**. This bootstrap script includes the core library and executes the test class, providing a simple way to verify the installation without configuring a full PHPUnit runner.

## Running the SunLicense Tests

You can execute the validation suite directly from the command line using the bootstrap file. Navigate to the repository root and run:

```php
// Run the test suite from the command line
php test/index.php

```

For developers integrating the library into their own applications, the test files demonstrate proper instantiation patterns:

```php
// A minimal example of using the library in a test
use SunLicense;

$lic = new SunLicense('MYAPP', 'xxxx-xxxx-xxxx-xxxx');
$key = $lic->generate();      // → e.g. MYAPP‑AB12‑CD34‑EF56‑GH78
assert($lic->check($key));    // true if the key is valid

```

## Key Source Files

Understanding the relationship between the core library and its tests helps navigate the codebase:

- **[`SunLicense.php`](https://github.com/msbatal/php-license-key-generator/blob/main/SunLicense.php)** – The core library located at the repository root that implements license key generation and validation algorithms.
- **[`test/SunLicense.php`](https://github.com/msbatal/php-license-key-generator/blob/main/test/SunLicense.php)** – The unit test file that validates the public API of the core library.
- **[`test/index.php`](https://github.com/msbatal/php-license-key-generator/blob/main/test/index.php)** – The simple bootstrap script that loads the library and triggers the test suite.
- **[`README.md`](https://github.com/msbatal/php-license-key-generator/blob/main/README.md)** – Documentation covering installation, usage instructions, and quick start examples.

## Summary

- The SunLicense library stores its test suite in the top-level **`test/`** directory, not in a nested `tests/` folder.
- **[`test/SunLicense.php`](https://github.com/msbatal/php-license-key-generator/blob/main/test/SunLicense.php)** contains the actual PHPUnit-style test class covering generation and validation logic.
- **[`test/index.php`](https://github.com/msbatal/php-license-key-generator/blob/main/test/index.php)** serves as the lightweight runner that includes the library and executes tests.
- Run tests locally with `php test/index.php` from the repository root.

## Frequently Asked Questions

### Where exactly are the SunLicense library test files located?

The test files are located in the **`test/`** directory at the root of the `msbatal/php-license-key-generator` repository. Specifically, you will find [`test/SunLicense.php`](https://github.com/msbatal/php-license-key-generator/blob/main/test/SunLicense.php) containing the test class and [`test/index.php`](https://github.com/msbatal/php-license-key-generator/blob/main/test/index.php) serving as the execution bootstrap.

### How do I run the tests for the SunLicense library?

Execute the bootstrap script from your terminal using `php test/index.php`. This command loads the core [`SunLicense.php`](https://github.com/msbatal/php-license-key-generator/blob/main/SunLicense.php) class and runs the validation suite without requiring a full PHPUnit installation or configuration.

### What testing framework does SunLicense use?

According to the source code, the library employs a lightweight, PHPUnit-style approach. The [`test/SunLicense.php`](https://github.com/msbatal/php-license-key-generator/blob/main/test/SunLicense.php) file defines test methods that verify key generation and validation, though it runs via the simple [`test/index.php`](https://github.com/msbatal/php-license-key-generator/blob/main/test/index.php) bootstrap rather than a formal PHPUnit XML configuration.

### What is the difference between the two test files?

[`test/SunLicense.php`](https://github.com/msbatal/php-license-key-generator/blob/main/test/SunLicense.php) contains the actual test logic and assertions that verify the `SunLicense` class behavior. In contrast, [`test/index.php`](https://github.com/msbatal/php-license-key-generator/blob/main/test/index.php) is merely a bootstrap script that includes the autoloader, instantiates the environment, and invokes the test class to produce output.