afv-library/skills/running-apex-tests/references/test-fix-loop.md
sandipkumar-yadav 37aa84df42
feat: @W-22444026@ Introducing Core Skills, Datacloud Skills, Industries and Utility Skills. (#268)
* Migrating Core Salesforce Skills

* Updating pr comments

* updat reference

* Updating a skill

* Migrating Datacloud skills

* Migrating Industries cloud skills

* Validating - skills fixing

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Co-authored-by: Sandip Kumar Yadav <sandipkumar.yadav+sfemu@salesforce.com>
2026-05-14 19:32:15 +05:30

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<!-- Parent: running-apex-tests/SKILL.md -->
# Agentic Test-Fix Loop Implementation
## How It Works
When the agentic loop is enabled, running-apex-tests will:
1. **Run tests** and capture results
2. **Parse failures** to identify error type and location
3. **Read source files** (test class + class under test)
4. **Analyze root cause** using the failure analysis decision tree
5. **Generate fix** by invoking sf-apex skill
6. **Re-run failing test** to verify fix
7. **Iterate** until passing or max attempts (3)
## Example Agentic Flow
```
User: "Run tests for AccountService with auto-fix enabled"
Claude:
1. sf apex run test --class-names AccountServiceTest --code-coverage --result-format json
2. Parse results: 1 failure - testBulkInsert line 45 NullPointerException
3. Read AccountServiceTest.cls (line 45 context)
4. Read AccountService.cls (trace the null reference)
5. Identify: Missing null check in AccountService.processAccounts()
6. Skill(sf-apex): Add null safety to AccountService.processAccounts()
7. Deploy fix
8. Re-run: sf apex run test --tests AccountServiceTest.testBulkInsert
9. ✅ Passing! Report success.
```
## Failure Analysis Decision Tree
| Error Type | Root Cause | Auto-Fix Strategy |
|------------|------------|-------------------|
| `System.AssertException` | Wrong expected value or logic bug | Analyze assertion, check if test or code is wrong |
| `System.NullPointerException` | Missing null check or test data | Add null safety or fix test data setup |
| `System.DmlException` | Validation rule, required field, trigger | Check org config, add required fields to test data |
| `System.LimitException` | Governor limit hit | Refactor to use bulkified patterns |
| `System.QueryException` | No rows returned | Add test data or adjust query |
| `System.TypeException` | Type mismatch | Fix type casting or data format |
## Auto-Fix Command
```
Skill(skill="sf-apex", args="Fix failing test [TestClassName].[methodName] - Error: [error message]")
```