Editing AI assistants in coding (section)

=== Prompt for Generate Unit Tests ===
JetBrain 推出 [https://plugins.jetbrains.com/plugin/22282-ai-assistant AI Assistant 外掛]功能，目前付費客戶可以免費試用 7 天。它下的 prompt，供大家參考

==== Prompt from JetBrain ====
<pre>
Write "XXXClassTest' tests for the
'xxx' method in the
"XXXClass' class. Guideline: '*' 
- Write a description of the class and the method being tested. 
- Test file should be complete and compilable, without need for further actions. 
- Ensure that each test focuses on a single use case to maintain clarity and readability. 
- PHP test file MUST starts with php opening tag ?php 
- Generated test class should be in namespace XXX''* File: XXXClass.php 

'''php ?php class
   XXXClass {  ... 
'''
</pre>

==== Prompt with Complete Testing Strategy ====
<pre>
Write complete unit tests for the "$METHOD_NAME" method in the "$CLASS_NAME" class.

## Test Target
- Class: $CLASS_NAME
- Method: $METHOD_NAME
- Test Class Name: ${CLASS_NAME}Test
- Namespace: $NAMESPACE
- Source File: $FILE_NAME

## Source Code
\```php
$CODE
\```

## Writing Conventions

**File Structure**
- Test file must begin with `<?php`
- Namespace should be `Tests\$NAMESPACE`
- Place test file at `__tests__/${CLASS_NAME}Test.php`

**Test Conventions**
- Extend `PHPUnit\Framework\TestCase`
- Each test method should cover only a single behavior
- Method naming format: `test_[method_name]_[scenario_description]`
- Use `setUp()` to initialize shared objects

**Coverage**
- Happy Path: expected results under normal input
- Edge Cases: boundary values, null values, extreme inputs
- Error States: thrown exceptions, error returns

## Output Requirements
- Test file must be complete and executable without any modifications
- Add a comment above each test method describing its purpose
- Include the CLI command to run the test file
</pre>

Instruction of Complete Testing Strategy

1. '''Happy Path''' — Verifies the program behaves correctly under expected, valid inputs.

<pre lang="php">
// e.g. formatDate should return the correct format when given a valid date
$this->assertSame('2024/01/15', $this->formatter->format('2024-01-15'));
</pre>

2. '''Edge Cases''' — Covers extreme or atypical but still valid inputs.

<pre lang="php">
// e.g. empty string, zero value, maximum integer, boundary date
$this->assertSame('', $this->formatter->format(''));
</pre>

3. '''Error States''' — Validates how the program handles illegal inputs or system failures.

<pre lang="php">
// e.g. should throw an exception or degrade gracefully when an invalid date is passed
$this->expectException(\InvalidArgumentException::class);
$this->formatter->format(null);
</pre>

==== Simple version ====

<pre>
Write PHPUnit test case including edge cases

'''php 
   function xxx(){ ...
'''
</pre>