Error occurs when sinon.stub

testing
1

I have been developping an app refering to https://github.com/meteor/todos/tree/react,
Here is my problem now

	describe('UsersList', () => {
		it('should render item', () => {
			const target = { _id: 1, profile: { username:'tester', allowed:false }};
			const wrapper = shallow(<User user={target} />);

			expect(wrapper.find('td').at(0).text()).to.equal('tester');
			expect(wrapper.find('td').at(1).childAt(0).prop('checked')).to.equal(false);
		});

		describe('Interaction', () => {
			let target;
			let wrapper;

			beforeEach(() => {
				target = { _id: 1, profile: { username:'tester', allowed:false }};
				wrapper = shallow(<User user={target} />);
			});

			it('should toggle allow status', () => {
				**sinon.stub(insert, 'call');**

				//wrapper.find('td').at(1).childAt(0).simulate('click');
				//sinon.assert.calledWith(insert.call, { _id: 1, allowed: true });
				//insert.call.restore();
			});
		});
	});

when the test runs, the complaining shows Error: call to eval() blocked by CSPcreateProxy@packages/practicalmeteor_sinon.js?hash=b2d5a9f0bc4d44b0cc741e58786e4e3a1c997c69:2406:17, and I am sure that it lead by sinon.stub

By the way , the insert is defined with ValidatedMethod

export const insert = new ValidatedMethod({
  name: 'todos.insert',
  validate: new SimpleSchema({
    listId: { type: String },
    text: { type: String },
  }).validator(),
  run({ listId, text }) {
    return;
  },
});