generate-tests

Generate Tests Skill

You will analyze code and generate high-quality unit tests for a given target.

Target to test: $ARGUMENTS

Quality Standards

• Take your time to analyze the code thoroughly before generating test cases.
• Quality is more important than speed — read all relevant source files and rules carefully.
• Do not skip any step in the workflow below. Every step exists for a reason.
• Do not take shortcuts with test data — read the actual classes to use correct constructors and fields.

---

Instructions

Step 1: Read Rules and Analyze Context

1. Read the relevant rules from ./rules/tests/ based on code type (see Rules Reference below)
2. Read the target source file/class/method
3. Read dependencies: Follow imports to read DTOs, entities, enums, custom exceptions, and other types referenced by the target (as specified in code-context-analysis rule)
4. Check for existing tests: Search for {ClassName}Test or {ClassName}Tests in the test directory (as specified in existing-test-awareness rule)
   • If found, read fully — you will add missing tests to it, not create a new file
   • If not found, scan 2-3 neighboring test classes to learn project conventions

Step 2: Generate Test Cases

1. Analyze ALL code branches, including:
   • Success paths
   • Error/exception paths
   • Validation logic
   • Private/protected methods called by the target
   • Security annotations (if present)
2. Apply the INCLUDE/EXCLUDE rules strictly
3. Output the list of test cases in the format below — do NOT generate test code yet

Test Case Output Format

## Test Cases for {ClassName}.{methodName}

### 1. {testMethodName}
- **Given:** {preconditions/input state}
- **When:** {action being tested}
- **Then:** {expected outcome}
- **Code branch:** {which code path this covers}

### 2. {testMethodName}
...

Naming Convention

Test method name format: {testedMethod}_{givenState}_{expectedOutcome}

Examples:

• calculateTotal_validProducts_returnsSum
• calculateTotal_emptyList_throwsIllegalArgumentException
• getUser_unauthorized_returns401