fix: error throw tests;

fix: better throw already `new Error`;

Author: xobotyi

src/__tests__/useMultiStateValidator.ts

@@ -68,14 +68,14 @@ describe('useMultiStateValidator', () => {
   });
 
   it('should throw if states is not an object', () => {
-    try {
+    expect(() => {
       // @ts-ignore
-      getHook(defaultStatesValidator, 123);
-    } catch (err) {
-      expect(err).toBeDefined();
-      expect(err instanceof Error).toBe(true);
-      expect(err.message).toBe('states expected to be an object or array, got number');
-    }
+      const [, hook] = getHook(defaultStatesValidator, 123);
+
+      if (hook.result.error) {
+        throw hook.result.error;
+      }
+    }).toThrowError('states expected to be an object or array, got number');
   });
 
   it('first returned element should represent current validity state', () => {

src/useMultiStateValidator.ts

@@ -17,7 +17,7 @@ export function useMultiStateValidator<
   S extends MultiStateValidatorStates = MultiStateValidatorStates
 >(states: S, validator: MultiStateValidator<V, S>, initialValidity: V = [undefined] as V): UseValidatorReturn<V> {
   if (typeof states !== 'object') {
-    throw Error('states expected to be an object or array, got ' + typeof states);
+    throw new Error('states expected to be an object or array, got ' + typeof states);
   }
 
   const validatorFn = useRef(validator);