Mastering TypeScript 3 - Third Edition

Form tests

When working with forms in our applications, there are generally two things that we need to test. The first is the population of values in a form, and the second is retrieving these values once the user has submitted the form. Remember that in large applications, a user will generally either enter new data into a form (to create something), or the user might be modifying existing data through a form (to update something). This is why we need to test setting the initial values of a form. Our test is as follows:

it("should find form-group input with value", () => { 
    let formGroup = renderedHtml.find('.form-group'); 
    let input = formGroup.find('input'); 
    expect(input.length).toBeGreaterThan(0,  'could not find form-group label'); expect(input.attr('value')).toContain('testName'); ...