Error on invalid dates

library/CHANGELOG.md

@@ -6,6 +6,7 @@ All notable changes to the library will be documented in this file.
 
 - Add `getRestAndDefaultArgs` utility function
 - Add new `rest` argument to `object` and `objectAsync` schema
+- Fix type check in `date` and `dateAsync` for invalid dates (pull request #214)
 - Change `ObjectSchema` and `ObjectSchemaAsync` type
 - Change type check in `tuple` and `tupleAsync` to be less strict
 - Rename `ObjectShape` and `ObjectShapeAsync` types to `ObjectEntries` and `ObjectEntriesAsync`

library/src/schemas/date/date.test.ts

@@ -11,6 +11,7 @@ describe('date', () => {
     expect(output).toEqual(input);
     expect(() => parse(schema, 2023)).toThrowError();
     expect(() => parse(schema, '2023-07-10')).toThrowError();
+    expect(() => parse(schema, new Date('Invalid Date'))).toThrowError();
     expect(() => parse(schema, {})).toThrowError();
   });
 

library/src/schemas/date/date.ts

@@ -60,7 +60,7 @@ export function date(
      */
     _parse(input, info) {
       // Check type of input
-      if (!(input instanceof Date)) {
+      if (!(input instanceof Date) || isNaN(input.getTime())) {
         return getSchemaIssues(
           info,
           'type',

library/src/schemas/date/dateAsync.test.ts

@@ -11,6 +11,9 @@ describe('dateAsync', () => {
     expect(output).toEqual(input);
     await expect(parseAsync(schema, 2023)).rejects.toThrowError();
     await expect(parseAsync(schema, '2023-07-10')).rejects.toThrowError();
+    await expect(
+      parseAsync(schema, new Date('Invalid Date'))
+    ).rejects.toThrowError();
     await expect(parseAsync(schema, {})).rejects.toThrowError();
   });
 

library/src/schemas/date/dateAsync.ts

@@ -63,7 +63,7 @@ export function dateAsync(
      */
     async _parse(input, info) {
       // Check type of input
-      if (!(input instanceof Date)) {
+      if (!(input instanceof Date) || isNaN(input.getTime())) {
         return getSchemaIssues(
           info,
           'type',

library/src/schemas/number/number.ts

@@ -60,7 +60,7 @@ export function number(
      */
     _parse(input, info) {
       // Check type of input
-      if (typeof input !== 'number' || Number.isNaN(input)) {
+      if (typeof input !== 'number' || isNaN(input)) {
         return getSchemaIssues(
           info,
           'type',

library/src/schemas/number/numberAsync.ts

@@ -66,7 +66,7 @@ export function numberAsync(
      */
     async _parse(input, info) {
       // Check type of input
-      if (typeof input !== 'number' || Number.isNaN(input)) {
+      if (typeof input !== 'number' || isNaN(input)) {
         return getSchemaIssues(
           info,
           'type',