fix(issocialcreditcode): 修复校验位为0时验证结果不准确问题

doly-dev · Apr 15, 2022 · c2c997b · c2c997b
1 parent 328e072
commit c2c997b
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Showing 2 changed files with 4 additions and 1 deletion.
diff --git a/src/isSocialCreditCode.js b/src/isSocialCreditCode.js
@@ -30,7 +30,7 @@ function sumCheckCode(preCode) {
   // 计算整数求余函数MOD
   const remainder = total % 31;
   // 校验码字符值序号
-  const checkCodeIndex = 31 - remainder;
+  const checkCodeIndex = remainder !== 0 ? 31 - remainder : 0;
 
   return baseCodeArr[checkCodeIndex];
 }

diff --git a/test/validator/isSocialCreditCode.test.js b/test/validator/isSocialCreditCode.test.js
@@ -21,6 +21,9 @@ describe('isSocialCreditCode', () => {
   it('"91350100M000100Y4A" => false', () => {
     expect(isSocialCreditCode('91350100M000100Y4A')).toBe(false);
   });
+  it('校验位为0 "911101005JLR20JR60" => true', () => {
+    expect(isSocialCreditCode('911101005JLR20JR60')).toBe(true);
+  });
   it('宽松模式，"91350100M000100Y4AB" => true', () => {
     expect(isSocialCreditCode('91350100M000100Y4A', { loose: true })).toBe(true);
   });