How to test whether component contains string?

Question

I am trying to get my head around jest. This is my test:

test('whether contains className', () => {

    let list = [
        {
            id: 12,
            name: 'two',
            completed: true
        }
    ];

    const wrapper = shallow(
        <Todos todos={list}>
        </Todos>
    );

    expect(wrap).toMatch(/strikethrough/);
});

How can I check whether a component contains a (sub)string inside the component?

Answer 1

You can also use

expect('Something').toContain('thing');