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nested-validation.spec.ts
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nested-validation.spec.ts
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import { Contains, IsDefined, MinLength, ValidateNested } from '../../src/decorator/decorators';
import { Validator } from '../../src/validation/Validator';
import { ValidationTypes } from '../../src/validation/ValidationTypes';
const validator = new Validator();
describe('nested validation', () => {
it('should not validate missing nested objects', () => {
expect.assertions(4);
class MySubClass {
@MinLength(5)
name: string;
}
class MyClass {
@Contains('hello')
title: string;
@ValidateNested()
@IsDefined()
mySubClass: MySubClass;
}
const model: MyClass = new MyClass();
model.title = 'helo';
return validator.validate(model).then(errors => {
expect(errors[1].target).toEqual(model);
expect(errors[1].value).toBeUndefined();
expect(errors[1].property).toEqual('mySubClass');
expect(errors[1].constraints).toEqual({ isDefined: 'mySubClass should not be null or undefined' });
});
});
it('should validate nested objects', () => {
expect.assertions(55);
class MySubClass {
@MinLength(5)
name: string;
}
class MyClass {
@Contains('hello')
title: string;
@ValidateNested()
mySubClass: MySubClass;
@ValidateNested()
mySubClasses: MySubClass[];
@ValidateNested()
mySubSubClasses: MySubClass[][];
@ValidateNested()
mySubSubSubClasses: MySubClass[][][];
}
const model = new MyClass();
model.title = 'helo world';
model.mySubClass = new MySubClass();
model.mySubClass.name = 'my';
model.mySubClasses = [new MySubClass(), new MySubClass()];
model.mySubClasses[0].name = 'my';
model.mySubClasses[1].name = 'not-short';
model.mySubSubClasses = [[new MySubClass()]];
model.mySubSubClasses[0][0].name = 'sub';
model.mySubSubSubClasses = [[[new MySubClass()]]];
model.mySubSubSubClasses[0][0][0].name = 'sub';
return validator.validate(model).then(errors => {
expect(errors.length).toEqual(5);
expect(errors[0].target).toEqual(model);
expect(errors[0].property).toEqual('title');
expect(errors[0].constraints).toEqual({ contains: 'title must contain a hello string' });
expect(errors[0].value).toEqual('helo world');
expect(errors[1].target).toEqual(model);
expect(errors[1].property).toEqual('mySubClass');
expect(errors[1].value).toEqual(model.mySubClass);
expect(errors[1].constraints).toBeUndefined();
const subError1 = errors[1].children[0];
expect(subError1.target).toEqual(model.mySubClass);
expect(subError1.property).toEqual('name');
expect(subError1.constraints).toEqual({ minLength: 'name must be longer than or equal to 5 characters' });
expect(subError1.value).toEqual('my');
expect(errors[2].target).toEqual(model);
expect(errors[2].property).toEqual('mySubClasses');
expect(errors[2].value).toEqual(model.mySubClasses);
expect(errors[2].constraints).toBeUndefined();
const subError2 = errors[2].children[0];
expect(subError2.target).toEqual(model.mySubClasses);
expect(subError2.value).toEqual(model.mySubClasses[0]);
expect(subError2.property).toEqual('0');
const subSubError = subError2.children[0];
expect(subSubError.target).toEqual(model.mySubClasses[0]);
expect(subSubError.property).toEqual('name');
expect(subSubError.constraints).toEqual({ minLength: 'name must be longer than or equal to 5 characters' });
expect(subSubError.value).toEqual('my');
expect(errors[3].target).toEqual(model);
expect(errors[3].property).toEqual('mySubSubClasses');
expect(errors[3].value).toEqual(model.mySubSubClasses);
expect(errors[3].constraints).toBeUndefined();
const subError3 = errors[3].children[0];
expect(subError3.target).toEqual(model.mySubSubClasses);
expect(subError3.value).toEqual(model.mySubSubClasses[0]);
expect(subError3.property).toEqual('0');
const subSubError3 = subError3.children[0];
expect(subSubError3.target).toEqual(model.mySubSubClasses[0]);
expect(subSubError3.value).toEqual(model.mySubSubClasses[0][0]);
expect(subSubError3.property).toEqual('0');
const subSubSubError3 = subSubError3.children[0];
expect(subSubSubError3.target).toEqual(model.mySubSubClasses[0][0]);
expect(subSubSubError3.property).toEqual('name');
expect(subSubSubError3.constraints).toEqual({ minLength: 'name must be longer than or equal to 5 characters' });
expect(subSubSubError3.value).toEqual('sub');
expect(errors[4].target).toEqual(model);
expect(errors[4].property).toEqual('mySubSubSubClasses');
expect(errors[4].value).toEqual(model.mySubSubSubClasses);
expect(errors[4].constraints).toBeUndefined();
const subError4 = errors[4].children[0];
expect(subError4.target).toEqual(model.mySubSubSubClasses);
expect(subError4.value).toEqual(model.mySubSubSubClasses[0]);
expect(subError4.property).toEqual('0');
const subSubError4 = subError4.children[0];
expect(subSubError4.target).toEqual(model.mySubSubSubClasses[0]);
expect(subSubError4.value).toEqual(model.mySubSubSubClasses[0][0]);
expect(subSubError4.property).toEqual('0');
const subSubSubError4 = subSubError4.children[0];
expect(subSubSubError4.target).toEqual(model.mySubSubSubClasses[0][0]);
expect(subSubSubError4.value).toEqual(model.mySubSubSubClasses[0][0][0]);
expect(subSubSubError4.property).toEqual('0');
const subSubSubSubError4 = subSubSubError4.children[0];
expect(subSubSubSubError4.target).toEqual(model.mySubSubSubClasses[0][0][0]);
expect(subSubSubSubError4.property).toEqual('name');
expect(subSubSubSubError4.constraints).toEqual({
minLength: 'name must be longer than or equal to 5 characters',
});
expect(subSubSubSubError4.value).toEqual('sub');
});
});
it('should validate when nested is not object', () => {
expect.assertions(4);
class MySubClass {
@MinLength(5)
name: string;
}
class MyClass {
@ValidateNested()
mySubClass: MySubClass;
}
const model = new MyClass();
model.mySubClass = 'invalidnested object' as any;
return validator.validate(model).then(errors => {
expect(errors[0].target).toEqual(model);
expect(errors[0].property).toEqual('mySubClass');
expect(errors[0].children.length).toEqual(0);
expect(errors[0].constraints).toEqual({
[ValidationTypes.NESTED_VALIDATION]: 'nested property mySubClass must be either object or array',
});
});
});
it('should validate nested set', () => {
expect.assertions(24);
class MySubClass {
@MinLength(5)
name: string;
}
class MyClass {
@Contains('hello')
title: string;
@ValidateNested()
mySubClass: MySubClass;
@ValidateNested()
mySubClasses: Set<MySubClass>;
}
const model = new MyClass();
model.title = 'helo world';
model.mySubClass = new MySubClass();
model.mySubClass.name = 'my';
model.mySubClasses = new Set();
const submodel1 = new MySubClass();
submodel1.name = 'my';
model.mySubClasses.add(submodel1);
const submodel2 = new MySubClass();
submodel2.name = 'not-short';
model.mySubClasses.add(submodel2);
return validator.validate(model).then(errors => {
expect(errors.length).toEqual(3);
expect(errors[0].target).toEqual(model);
expect(errors[0].property).toEqual('title');
expect(errors[0].constraints).toEqual({ contains: 'title must contain a hello string' });
expect(errors[0].value).toEqual('helo world');
expect(errors[1].target).toEqual(model);
expect(errors[1].property).toEqual('mySubClass');
expect(errors[1].value).toEqual(model.mySubClass);
expect(errors[1].constraints).toBeUndefined();
const subError1 = errors[1].children[0];
expect(subError1.target).toEqual(model.mySubClass);
expect(subError1.property).toEqual('name');
expect(subError1.constraints).toEqual({ minLength: 'name must be longer than or equal to 5 characters' });
expect(subError1.value).toEqual('my');
expect(errors[2].target).toEqual(model);
expect(errors[2].property).toEqual('mySubClasses');
expect(errors[2].value).toEqual(model.mySubClasses);
expect(errors[2].constraints).toBeUndefined();
const subError2 = errors[2].children[0];
expect(subError2.target).toEqual(model.mySubClasses);
expect(subError2.value).toEqual(submodel1);
expect(subError2.property).toEqual('0');
const subSubError = subError2.children[0];
expect(subSubError.target).toEqual(submodel1);
expect(subSubError.property).toEqual('name');
expect(subSubError.constraints).toEqual({ minLength: 'name must be longer than or equal to 5 characters' });
expect(subSubError.value).toEqual('my');
});
});
it('should validate nested map', () => {
expect.assertions(24);
class MySubClass {
@MinLength(5)
name: string;
}
class MyClass {
@Contains('hello')
title: string;
@ValidateNested()
mySubClass: MySubClass;
@ValidateNested()
mySubClasses: Map<string, MySubClass>;
}
const model = new MyClass();
model.title = 'helo world';
model.mySubClass = new MySubClass();
model.mySubClass.name = 'my';
model.mySubClasses = new Map();
const submodel1 = new MySubClass();
submodel1.name = 'my';
model.mySubClasses.set('key1', submodel1);
const submodel2 = new MySubClass();
submodel2.name = 'not-short';
model.mySubClasses.set('key2', submodel2);
return validator.validate(model).then(errors => {
expect(errors.length).toEqual(3);
expect(errors[0].target).toEqual(model);
expect(errors[0].property).toEqual('title');
expect(errors[0].constraints).toEqual({ contains: 'title must contain a hello string' });
expect(errors[0].value).toEqual('helo world');
expect(errors[1].target).toEqual(model);
expect(errors[1].property).toEqual('mySubClass');
expect(errors[1].value).toEqual(model.mySubClass);
expect(errors[1].constraints).toBeUndefined();
const subError1 = errors[1].children[0];
expect(subError1.target).toEqual(model.mySubClass);
expect(subError1.property).toEqual('name');
expect(subError1.constraints).toEqual({ minLength: 'name must be longer than or equal to 5 characters' });
expect(subError1.value).toEqual('my');
expect(errors[2].target).toEqual(model);
expect(errors[2].property).toEqual('mySubClasses');
expect(errors[2].value).toEqual(model.mySubClasses);
expect(errors[2].constraints).toBeUndefined();
const subError2 = errors[2].children[0];
expect(subError2.target).toEqual(model.mySubClasses);
expect(subError2.value).toEqual(submodel1);
expect(subError2.property).toEqual('key1');
const subSubError = subError2.children[0];
expect(subSubError.target).toEqual(submodel1);
expect(subSubError.property).toEqual('name');
expect(subSubError.constraints).toEqual({ minLength: 'name must be longer than or equal to 5 characters' });
expect(subSubError.value).toEqual('my');
});
});
it('should validate nested plain object', () => {
expect.assertions(24);
class MySubClass {
@MinLength(5)
name: string;
}
class MyClass {
@Contains('hello')
title: string;
@ValidateNested()
mySubClass: MySubClass;
@ValidateNested({
plain: true,
})
mySubClasses: Record<string, MySubClass>;
}
const model = new MyClass();
model.title = 'helo world';
model.mySubClass = new MySubClass();
model.mySubClass.name = 'my';
model.mySubClasses = {};
const subsubmodel1 = new MySubClass();
subsubmodel1.name = 'shor';
const submodel1 = new MySubClass();
submodel1.name = 'my';
model.mySubClasses.key1 = submodel1;
const submodel2 = new MySubClass();
submodel2.name = 'not-short';
model.mySubClasses.key2 = submodel2;
return validator.validate(model).then(errors => {
expect(errors.length).toEqual(3);
expect(errors[0].target).toEqual(model);
expect(errors[0].property).toEqual('title');
expect(errors[0].constraints).toEqual({ contains: 'title must contain a hello string' });
expect(errors[0].value).toEqual('helo world');
expect(errors[1].target).toEqual(model);
expect(errors[1].property).toEqual('mySubClass');
expect(errors[1].value).toEqual(model.mySubClass);
expect(errors[1].constraints).toBeUndefined();
const subError1 = errors[1].children[0];
expect(subError1.target).toEqual(model.mySubClass);
expect(subError1.property).toEqual('name');
expect(subError1.constraints).toEqual({ minLength: 'name must be longer than or equal to 5 characters' });
expect(subError1.value).toEqual('my');
expect(errors[2].target).toEqual(model);
expect(errors[2].property).toEqual('mySubClasses');
expect(errors[2].value).toEqual(model.mySubClasses);
expect(errors[2].constraints).toBeUndefined();
const subError2 = errors[2].children[0];
expect(subError2.target).toEqual(model.mySubClasses);
expect(subError2.value).toEqual(submodel1);
expect(subError2.property).toEqual('key1');
const subSubError = subError2.children[0];
expect(subSubError.target).toEqual(submodel1);
expect(subSubError.property).toEqual('name');
expect(subSubError.constraints).toEqual({ minLength: 'name must be longer than or equal to 5 characters' });
expect(subSubError.value).toEqual('my');
});
});
it('nestedValidation should be defined as an error for the property specifying the decorator when validation fails.', () => {
class MySubClass {
@MinLength(5)
name: string;
}
class MyClass {
@ValidateNested()
nestedWithClassValue: MySubClass;
@ValidateNested()
nestedWithPrimitiveValue: MySubClass;
}
const model = new MyClass();
model.nestedWithClassValue = new MySubClass();
model.nestedWithPrimitiveValue = 'invalid' as any;
return validator.validate(model, { stopAtFirstError: true }).then(errors => {
expect(errors[0].property).toEqual('nestedWithClassValue');
expect(errors[0].children.length).toEqual(1);
expect(errors[0].children[0].constraints).toHaveProperty('minLength');
expect(errors[1].property).toEqual('nestedWithPrimitiveValue');
expect(errors[1].constraints).toHaveProperty('nestedValidation');
});
});
});