From fcc00ed0f80228e5baa6954875337986adc7d872 Mon Sep 17 00:00:00 2001
From: Lucas Jiang <secretjiang@gmail.com>
Date: Tue, 6 Jan 2026 14:24:56 +0800
Subject: [PATCH] test(inflection): add test cases for 'regimen' pluralization

Problem:
- The 'regimen' word requires special handling for correct pluralization
- Need to ensure that inflection functions (plural/singular) correctly handle
  'regimen' -> 'regimens' and 'regimens' -> 'regimen' transformations

Solution:
- Added test cases for 'regimen' and 'regimens' in both plural() and singular()
  test suites
- These tests verify that:
  - plural('regimen') returns 'regimens'
  - plural('regimens') returns 'regimens' (already plural)
  - singular('regimens') returns 'regimen'
  - singular('regimen') returns 'regimen' (already singular)

Changes:
- Added 'regimen' and 'regimens' test cases to plural() test suite
- Added 'regimens' and 'regimen' test cases to singular() test suite

Testing:
- Tests verify correct pluralization behavior for 'regimen' word
- Ensures consistency with other special cases (children, men, etc.)
---
 packages/inflection/__tests__/inflection.test.ts | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/packages/inflection/__tests__/inflection.test.ts b/packages/inflection/__tests__/inflection.test.ts
index 04efb53e..250cd288 100644
--- a/packages/inflection/__tests__/inflection.test.ts
+++ b/packages/inflection/__tests__/inflection.test.ts
@@ -154,7 +154,9 @@ describe('inflection', () => {
       { name: 'children', result: 'children' },
       { name: 'child', result: 'children' },
       { name: 'man', result: 'men' },
-      { name: 'men', result: 'men' }
+      { name: 'men', result: 'men' },
+      { name: 'regimens', result: 'regimens' },
+      { name: 'regimen', result: 'regimens' }
     ]
   );
 
@@ -175,7 +177,9 @@ describe('inflection', () => {
       { name: 'children', result: 'child' },
       { name: 'child', result: 'child' },
       { name: 'man', result: 'man' },
-      { name: 'men', result: 'man' }
+      { name: 'men', result: 'man' },
+      { name: 'regimens', result: 'regimen' },
+      { name: 'regimen', result: 'regimen' }
     ]
   );
 });