Add func validator tests

Author: CodingCarlos

lib/validators/func.js

@@ -11,6 +11,10 @@ function isValid(data, model) {
 		return true;
 	}
 
+	if(typeof model.func !== 'function') {
+		return false;
+	}
+
 	return model.func(data);
 }
 

spec/validators/func.spec.js

@@ -0,0 +1,42 @@
+const valid = require('../../lib/validators/func');
+
+
+
+describe(' - Function validator', () => {
+	
+
+	it('shall be a function', () => {
+		expect(typeof valid).toEqual('function');
+	});
+
+	describe('is a valid function', () => {
+		const model = {};
+
+		beforeEach(function () {
+			model.func = function (data) { 
+				return !!data; 
+			};
+
+			spyOn(model, 'func').and.callThrough();
+		});
+
+		it('shall call the function after execution', () => {
+			expect(model.func).not.toHaveBeenCalled();
+			valid('null', model);
+			expect(model.func).toHaveBeenCalled();
+		});
+	});
+
+	describe('is NOT a valid function', () => {
+		const model = {};
+
+		beforeEach(function () {
+			model.func = 'invalidData';
+		});
+
+		it('shall return false', () => {
+			const result = valid('null', model);
+			expect(result).toEqual(false);
+		});
+	});
+});