refactor: improve coercion

src/domain/MikroValid.ts

@@ -123,8 +123,7 @@ export class MikroValid {
           isAdditionalsOk
         );
 
-        if (this.isObject(inputKey))
-          this.handleNestedObject(inputKey as Record<string, any>, propertyKey, results, errors);
+        this.handleNestedObject(inputKey as Record<string, any>, propertyKey, results, errors);
       }
     }
 
@@ -135,7 +134,7 @@ export class MikroValid {
    * @description Checks if a value is actually defined as a non-null value.
    */
   private isDefined(value: unknown) {
-    if (value || typeof value === 'number') return true;
+    if (!!value) return true;
     return false;
   }
 
@@ -223,12 +222,14 @@ export class MikroValid {
     results: Result[],
     errors: ValidationError[]
   ) {
-    const nestedObjects = this.getNestedObjects(inputKey);
+    if (this.isObject(inputKey)) {
+      const nestedObjects = this.getNestedObjects(inputKey);
 
-    for (const nested of nestedObjects) {
-      const nextSchema = propertyKey[nested];
-      const nextInput = inputKey[nested];
-      if (nextSchema && nextInput) this.validate(nextSchema, nextInput, results, errors);
+      for (const nested of nestedObjects) {
+        const nextSchema = propertyKey[nested];
+        const nextInput = inputKey[nested];
+        if (nextSchema && nextInput) this.validate(nextSchema, nextInput, results, errors);
+      }
     }
   }
 

tests/MikroValid.test.ts

@@ -279,7 +279,7 @@ test('It should validate a nested object', (t) => {
 });
 
 test('It should invalidate multiple errors separately', (t) => {
-  const expected = 3;
+  const expected = 2;
   const { errors } = match.test(
     {
       properties: {
@@ -297,7 +297,7 @@ test('It should invalidate multiple errors separately', (t) => {
           type: 'object'
         }
       },
-      required: ['box', 'asdf']
+      required: ['box']
     },
     { box: { first: '1', _second: '2' } }
   );