minor(vest-utils): Predicates.any

packages/vest-utils/src/Predicates.ts

@@ -6,3 +6,8 @@ export function all<T = any>(...p: Predicate<T>[]): (value: T) => boolean {
   return (value: T) =>
     isEmpty(p) ? false : p.every(predicate => predicate(value));
 }
+
+export function any<T = any>(...p: Predicate<T>[]): (value: T) => boolean {
+  return (value: T) =>
+    isEmpty(p) ? false : p.some(predicate => predicate(value));
+}

packages/vest-utils/src/__tests__/Predicates.test.ts

@@ -1,4 +1,4 @@
-import { all } from 'Predicates';
+import { all, any } from 'Predicates';
 
 describe('Predicates', () => {
   describe('all', () => {
@@ -53,4 +53,49 @@ describe('Predicates', () => {
       expect(spy2).toHaveBeenCalledWith(5);
     });
   });
+
+  describe('any', () => {
+    it('Shold return a predicate function', () => {
+      expect(typeof any()).toBe('function');
+    });
+
+    it('Should return true if any predicate returns true', () => {
+      expect(
+        any(
+          value => value > 0,
+          value => value === 10
+        )(5)
+      ).toBe(true);
+      expect(
+        any(
+          value => value === 10,
+          value => value > 0
+        )(5)
+      ).toBe(true);
+    });
+
+    it('Should return true if all predicates return true', () => {
+      const predicate = any(
+        value => value > 0,
+        value => value === 10
+      );
+
+      expect(predicate(10)).toBe(true);
+    });
+
+    it('Should return false if all predicates return false', () => {
+      const predicate = any(
+        value => value > 0,
+        value => value === 10
+      );
+
+      expect(predicate(-5)).toBe(false);
+    });
+
+    it('Should return false if no predicates are passed', () => {
+      const predicate = any();
+
+      expect(predicate(15)).toBe(false);
+    });
+  });
 });