BMAD-METHOD/expansion-packs/bmad-tdd-methodology/examples/tdd-demo/1.1-user-validation.md

202 lines
5.1 KiB
Markdown

# Story 1.1: User Email Validation
## Story Metadata
```yaml
story:
epic: '1'
number: '1'
title: 'User Email Validation'
status: 'ready'
priority: 'high'
# TDD Configuration
tdd:
status: 'red' # Current phase: red|green|refactor|done
cycle: 1
coverage_target: 90.0
tests:
- id: 'UV-001'
name: 'should validate correct email format'
type: unit
status: failing
file_path: 'tests/user-validator.test.js'
- id: 'UV-002'
name: 'should reject invalid email format'
type: unit
status: failing
file_path: 'tests/user-validator.test.js'
- id: 'UV-003'
name: 'should handle edge cases'
type: unit
status: failing
file_path: 'tests/user-validator.test.js'
```
## Story Description
**As a** System Administrator
**I want** to validate user email addresses
**So that** only users with valid email formats can register
### Context
This is a foundational feature for user registration. We need robust email validation that follows RFC standards while being user-friendly. This will be used by the registration system and user profile updates.
## Acceptance Criteria
```gherkin
Feature: User Email Validation
Scenario: Valid email formats are accepted
Given a user provides an email address
When the email has correct format with @ symbol and domain
Then the validation should return true
Scenario: Invalid email formats are rejected
Given a user provides an invalid email address
When the email lacks @ symbol or proper domain format
Then the validation should return false with appropriate error message
Scenario: Edge cases are handled properly
Given a user provides edge case email formats
When validation is performed on emails with special characters or unusual formats
Then the system should handle them according to RFC standards
```
## Technical Requirements
### Functional Requirements
- Validate email format using RFC-compliant rules
- Return boolean result with error details when invalid
- Handle common edge cases (special characters, multiple @, etc.)
- Performance: validation should complete in < 1ms
### Non-Functional Requirements
- **Performance:** < 1ms validation time per email
- **Security:** Prevent injection attacks via email input
- **Reliability:** 99.9% accuracy on email format validation
- **Maintainability:** Clear error messages for debugging
## TDD Test Plan (QA Agent Responsibility)
### Test Strategy
- **Primary Test Type:** unit
- **Mocking Approach:** No external dependencies to mock
- **Test Data:** Fixed test cases covering valid/invalid formats
### Planned Test Scenarios
| ID | Scenario | Type | Priority | AC Reference |
| ------ | ---------------------------- | ---- | -------- | ------------ |
| UV-001 | Valid email formats accepted | unit | P0 | AC1 |
| UV-002 | Invalid formats rejected | unit | P0 | AC2 |
| UV-003 | Edge cases handled | unit | P1 | AC3 |
| UV-004 | Performance requirements met | unit | P2 | NFR |
## TDD Progress
### Current Phase: RED
**Cycle:** 1
**Last Updated:** 2025-01-12
### Red Phase - Cycle 1
**Date:** 2025-01-12
**Agent:** Quinn (QA Agent)
**Tests Written:**
- UV-001: should validate correct email format (FAILING ✅)
- UV-002: should reject invalid email format (FAILING ✅)
- UV-003: should handle edge cases (FAILING ✅)
**Test Files:**
- tests/user-validator.test.js
**Next Step:** Dev Agent to implement minimal code to make tests pass
---
## Implementation Tasks (Dev Agent)
### Primary Tasks
- [ ] Create UserValidator class
- [ ] Implement email validation logic
- [ ] Handle error cases and edge cases
### Subtasks
- [ ] Set up basic class structure
- [ ] Implement regex-based validation
- [ ] Add error message generation
- [ ] Performance optimization
## Definition of Done
### TDD-Specific DoD
- [ ] Tests written first (Red phase completed)
- [ ] All tests passing (Green phase completed)
- [ ] Code refactored for quality (Refactor phase completed)
- [ ] Test coverage meets target (90%)
- [ ] All external dependencies properly mocked (N/A for this story)
- [ ] No features implemented without corresponding tests
### General DoD
- [ ] All acceptance criteria met
- [ ] Code follows project standards
- [ ] Documentation updated
- [ ] Ready for review
## Dev Agent Record
### Implementation Notes
_(Dev agent will document implementation decisions here)_
### TDD Cycle Log
_(Automatic tracking of Red-Green-Refactor progression)_
**Cycle 1:**
- Red Phase: 2025-01-12 - 3 failing tests written
- Green Phase: _(pending)_
- Refactor Phase: _(pending)_
### File List
_(Dev agent will list all files created/modified)_
- tests/user-validator.test.js (created)
- _(implementation files will be added during GREEN phase)_
### Test Execution Log
```bash
# RED phase test runs will be logged here
```
## QA Results
_(QA agent will populate this during review)_
## Change Log
- **2025-01-12**: Story created from TDD template
- **2025-01-12**: Red phase completed - failing tests written
---
**TDD Status:** 🔴 RED Phase
**Agent Assigned:** Quinn (QA) James (Dev)
**Estimated Effort:** 2 hours