0.7.5 - add isMySqlTimestamp predicate to Strings

SeanCannon · Nov 3, 2021 · 97267e1 · 97267e1
1 parent 35b33c8
commit 97267e1
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Showing 3 changed files with 19 additions and 1 deletion.
diff --git a/lib/predicates/strings.js b/lib/predicates/strings.js
@@ -36,6 +36,8 @@ const isNumericString = str => isString(str) && !isNaN(parseInt(str, 10));
 
 const isTimestamp = R.test(/(\d{4}-[01]\d-[0-3]\dT[0-2]\d:[0-5]\d:[0-5]\d\.\d+([+-][0-2]\d:[0-5]\d|Z))|(\d{4}-[01]\d-[0-3]\dT[0-2]\d:[0-5]\d:[0-5]\d([+-][0-2]\d:[0-5]\d|Z))|(\d{4}-[01]\d-[0-3]\dT[0-2]\d:[0-5]\d([+-][0-2]\d:[0-5]\d|Z))/);
 
+const isMySqlTimestamp = R.test(/^([1-2][0-9]{3})-([0-1][0-9])-([0-3][0-9])(?:( [0-2][0-9]):([0-5][0-9]):([0-5][0-9]))?$/);
+
 const isJSON = (str) => {
   try {
     JSON.parse(str);
@@ -59,6 +61,7 @@ module.exports = {
   stringIsOneOf,
   isNumericString,
   isTimestamp,
+  isMySqlTimestamp,
   isEmail,
   isJSON
 };
diff --git a/package.json b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "prettycats",
-  "version": "0.7.4",
+  "version": "0.7.5",
   "description": "Helpful, common, and curried predicates library built on Ramda.",
   "main": "dist/prettycats.js",
   "dependencies": {

diff --git a/spec/predicates/stringsSpec.js b/spec/predicates/stringsSpec.js
@@ -192,6 +192,21 @@ describe('string predicates', () => {
     });
   });
 
+  describe('isMySqlTimestamp', () => {
+    it('passes when given supported variations of a MySQL timestamp', () => {
+      expect(strings.isMySqlTimestamp('2012-06-22 05:40:06')).toBe(true);
+      expect(strings.isMySqlTimestamp('2021-11-03 11:15:59')).toBe(true);
+    });
+    it('fails when given unsupported variations of datetime strings', () => {
+      expect(strings.isMySqlTimestamp('Thu Aug 24 2017')).toBe(false);
+      expect(strings.isMySqlTimestamp('Thu Aug 24 2017 19:20:30 GMT-0700 (PDT)')).toBe(false);
+    });
+    it('fails when given a type other than string', () => {
+      expect(strings.isMySqlTimestamp({ foo : 'bar' })).toBe(false);
+      expect(strings.isMySqlTimestamp(2017)).toBe(false);
+    });
+  });
+
   describe('isJSON', () => {
     it('passes when given correctly formatted JSON', () => {
       expect(strings.isJSON('{}')).toBe(true);