Added field context tests

Author: EranNL

__tests__/FieldContext.test.tsx

@@ -0,0 +1,28 @@
+import React from 'react';
+import { render } from 'enzyme';
+import { FieldContext } from '@/components/Field/FieldContext';
+
+describe('FieldContext test', () => {
+    it('should use default values when no consumer used', () => {
+        const mockChangeValue = jest.fn();
+        const mockChangeFocus = jest.fn();
+        const container = render(
+            <div>
+                <FieldContext.Consumer>
+                    {({ changeValue, changeFocus }) => {
+                        const a = changeValue(true);
+                        const b = changeFocus(true);
+
+                        return <span>{a === undefined && b === undefined ? 'undefined' : 'defined'}</span>;
+                    }}
+                </FieldContext.Consumer>
+            </div>,
+            { context: {
+                changeValue: mockChangeValue,
+                changeFocus: mockChangeFocus
+            } }
+        )
+
+        expect(container.find('span').text()).toBe('undefined');
+    });
+})