diff --git a/src/app/core/form/form-helpers.spec.ts b/src/app/core/form/form-helpers.spec.ts
new file mode 100644
index 0000000..52a9769
--- /dev/null
+++ b/src/app/core/form/form-helpers.spec.ts
@@ -0,0 +1,56 @@
+import * as angular from 'angular';
+import 'angular-mocks';
+import {IXosFormHelpersService, XosFormHelpers} from './form-helpers';
+
+let service: IXosFormHelpersService;
+
+describe('The XosFormHelpers service', () => {
+
+  beforeEach(() => {
+    angular.module('formHelpers', [])
+      .service('XosFormHelpers', XosFormHelpers);
+    angular.mock.module('formHelpers');
+
+    angular.mock.inject((
+      XosFormHelpers: IXosFormHelpersService,
+    ) => {
+      service = XosFormHelpers;
+    });
+  });
+
+  describe('the getFieldFormat method', () => {
+    it('should return text', () => {
+      expect(service._getFieldFormat('cordSubscriber-1')).toEqual('text');
+      expect(service._getFieldFormat('a random text')).toEqual('text');
+      expect(service._getFieldFormat(null)).toEqual('text');
+      expect(service._getFieldFormat('1')).toEqual('text');
+    });
+    it('should return mail', () => {
+      expect(service._getFieldFormat('test@onlab.us')).toEqual('email');
+      expect(service._getFieldFormat('testonlab.us')).not.toEqual('email');
+    });
+    it('should return number', () => {
+      expect(service._getFieldFormat(1)).toEqual('number');
+    });
+    it('should return boolean', () => {
+      expect(service._getFieldFormat(false)).toEqual('boolean');
+      expect(service._getFieldFormat(true)).toEqual('boolean');
+    });
+
+    it('should return date', () => {
+      expect(service._getFieldFormat('2016-04-19T23:09:1092Z')).toEqual('text');
+      expect(service._getFieldFormat(new Date())).toEqual('date');
+      expect(service._getFieldFormat('2016-04-19T23:09:10.208092Z')).toEqual('date');
+    });
+
+    it('should return array', () => {
+      expect(service._getFieldFormat([])).toEqual('array');
+      expect(service._getFieldFormat(['a', 'b'])).toEqual('array');
+    });
+
+    it('should return object', () => {
+      expect(service._getFieldFormat({})).toEqual('object');
+      expect(service._getFieldFormat({foo: 'bar'})).toEqual('object');
+    });
+  });
+});
diff --git a/src/app/core/form/form-helpers.ts b/src/app/core/form/form-helpers.ts
index bbad2c8..3ae3fe6 100644
--- a/src/app/core/form/form-helpers.ts
+++ b/src/app/core/form/form-helpers.ts
@@ -1,20 +1,10 @@
-import {IXosFormInput} from './form';
-
 export interface IXosFormHelpersService {
   _getFieldFormat(value: any): string;
-  parseModelField(fields: any): any[];
-  buildFormStructure(modelField: any[], customField: any[], model: any, order: string[]): any;
-  buildFormData(fields: IXosFormInput[], model: any): any;
 }
 
-export class XosFormHelpers {
+export class XosFormHelpers implements IXosFormHelpersService {
   static $inject = [];
 
-  public _isEmail = (text) => {
-    const re = /(([^<>()[\]\\.,;:\s@\"]+(\.[^<>()[\]\\.,;:\s@\"]+)*)|(\".+\"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))/;
-    return re.test(text);
-  };
-
   public _getFieldFormat = (value) => {
     if (angular.isArray(value)) {
       return 'array';
@@ -48,5 +38,10 @@
 
     return typeof value;
   };
+
+  private _isEmail = (text) => {
+    const re = /(([^<>()[\]\\.,;:\s@\"]+(\.[^<>()[\]\\.,;:\s@\"]+)*)|(\".+\"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))/;
+    return re.test(text);
+  };
 }