xiangyixiangqin/miniapp/__tests__/properties/profile.property.test.js

/**
 * Property-based tests for profile functionality
 * **Feature: miniapp-frontend, Property 9: Birth Year Range**
 * **Feature: miniapp-frontend, Property 10: Photo Upload Limit**
 * **Feature: miniapp-frontend, Property 11: WeChat Field Validation**
 * **Validates: Requirements 4.3, 4.4, 4.6**
 */

import { describe, it, expect } from 'vitest'
import * as fc from 'fast-check'
import { getBirthYearRange } from '../../utils/format.js'

/**
 * Helper functions for profile validation
 * These mirror the validation logic in the profile edit page
 */

/**
 * Check if photo upload should be allowed
 * Property 10: Photo Upload Limit
 * @param {number} currentPhotoCount - Current number of photos
 * @returns {boolean} Whether upload is allowed
 */
export function canUploadPhoto(currentPhotoCount) {
  return currentPhotoCount < 5
}

/**
 * Check if phone verification button should be enabled
 * Property 11: WeChat Field Validation
 * @param {string} weChatNo - WeChat number
 * @returns {boolean} Whether button should be enabled
 */
export function isPhoneVerifyEnabled(weChatNo) {
  return Boolean(weChatNo && weChatNo.trim().length > 0)
}

describe('Profile Property Tests', () => {
  /**
   * Property 9: Birth Year Range
   * *For any* current year Y, the selectable birth years SHALL be in range [Y-50, Y-18],
   * ensuring users are between 18 and 50 years old.
   * **Validates: Requirements 4.3**
   */
  describe('Property 9: Birth Year Range', () => {
    it('should return birth years that result in ages between 18 and 50', () => {
      fc.assert(
        fc.property(
          // Generate current years between 2020 and 2030
          fc.integer({ min: 2020, max: 2030 }),
          (currentYear) => {
            const birthYears = getBirthYearRange(currentYear)
            
            // All birth years should result in valid ages
            return birthYears.every(birthYear => {
              const age = currentYear - birthYear
              return age >= 18 && age <= 50
            })
          }
        ),
        { numRuns: 100 }
      )
    })

    it('should have minimum birth year as currentYear - 50 (oldest allowed)', () => {
      fc.assert(
        fc.property(
          fc.integer({ min: 2020, max: 2030 }),
          (currentYear) => {
            const birthYears = getBirthYearRange(currentYear)
            const minBirthYear = Math.min(...birthYears)
            
            // Minimum birth year should be currentYear - 50
            return minBirthYear === currentYear - 50
          }
        ),
        { numRuns: 100 }
      )
    })

    it('should have maximum birth year as currentYear - 18 (youngest allowed)', () => {
      fc.assert(
        fc.property(
          fc.integer({ min: 2020, max: 2030 }),
          (currentYear) => {
            const birthYears = getBirthYearRange(currentYear)
            const maxBirthYear = Math.max(...birthYears)
            
            // Maximum birth year should be currentYear - 18
            return maxBirthYear === currentYear - 18
          }
        ),
        { numRuns: 100 }
      )
    })

    it('should return exactly 33 birth year options (ages 18-50 inclusive)', () => {
      fc.assert(
        fc.property(
          fc.integer({ min: 2020, max: 2030 }),
          (currentYear) => {
            const birthYears = getBirthYearRange(currentYear)
            
            // Should have 33 options: 50 - 18 + 1 = 33
            return birthYears.length === 33
          }
        ),
        { numRuns: 100 }
      )
    })

    it('should return birth years in descending order (youngest first)', () => {
      fc.assert(
        fc.property(
          fc.integer({ min: 2020, max: 2030 }),
          (currentYear) => {
            const birthYears = getBirthYearRange(currentYear)
            
            // Check descending order
            for (let i = 0; i < birthYears.length - 1; i++) {
              if (birthYears[i] <= birthYears[i + 1]) {
                return false
              }
            }
            return true
          }
        ),
        { numRuns: 100 }
      )
    })
  })

  /**
   * Property 10: Photo Upload Limit
   * *For any* photo upload attempt where current photo count is >= 5,
   * the upload SHALL be rejected.
   * **Validates: Requirements 4.4**
   */
  describe('Property 10: Photo Upload Limit', () => {
    it('should allow upload when photo count is less than 5', () => {
      fc.assert(
        fc.property(
          fc.integer({ min: 0, max: 4 }),
          (photoCount) => {
            return canUploadPhoto(photoCount) === true
          }
        ),
        { numRuns: 100 }
      )
    })

    it('should reject upload when photo count is 5 or more', () => {
      fc.assert(
        fc.property(
          fc.integer({ min: 5, max: 100 }),
          (photoCount) => {
            return canUploadPhoto(photoCount) === false
          }
        ),
        { numRuns: 100 }
      )
    })

    it('should have exactly 5 as the boundary for photo limit', () => {
      // Boundary test: 4 photos should allow upload, 5 should not
      expect(canUploadPhoto(4)).toBe(true)
      expect(canUploadPhoto(5)).toBe(false)
    })
  })

  /**
   * Property 11: WeChat Field Validation
   * *For any* profile form state where WeChat number field is empty,
   * the phone verification button SHALL be disabled.
   * **Validates: Requirements 4.6**
   */
  describe('Property 11: WeChat Field Validation', () => {
    it('should disable phone verify button when WeChat is empty', () => {
      fc.assert(
        fc.property(
          fc.constantFrom('', null, undefined),
          (weChatNo) => {
            return isPhoneVerifyEnabled(weChatNo) === false
          }
        ),
        { numRuns: 100 }
      )
    })

    it('should disable phone verify button when WeChat is only whitespace', () => {
      fc.assert(
        fc.property(
          fc.stringOf(fc.constantFrom(' ', '\t', '\n'), { minLength: 1, maxLength: 10 }),
          (weChatNo) => {
            return isPhoneVerifyEnabled(weChatNo) === false
          }
        ),
        { numRuns: 100 }
      )
    })

    it('should enable phone verify button when WeChat has non-whitespace content', () => {
      fc.assert(
        fc.property(
          // Generate valid WeChat IDs (alphanumeric, 6-20 chars)
          fc.stringOf(
            fc.constantFrom(...'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_-'),
            { minLength: 1, maxLength: 20 }
          ),
          (weChatNo) => {
            return isPhoneVerifyEnabled(weChatNo) === true
          }
        ),
        { numRuns: 100 }
      )
    })
  })
})