vue jest trigger input string

1. First, import the necessary dependencies for testing Vue components with Jest.

import { mount } from '@vue/test-utils';

1. Mount the Vue component that you want to test using the mount() function. This will create a wrapper around the component, allowing you to interact with it and make assertions.

const wrapper = mount(Component);

1. Find the input element within the component using a CSS selector or another appropriate method. For example, if the input has a specific class, you can use the wrapper.find() method to find it.

const input = wrapper.find('.input-class');

1. Use the setValue() method to set the value of the input to the desired string. This will simulate the user typing into the input field.

input.setValue('Hello, world!');

1. Trigger the input event on the input element to simulate the input being entered by the user. This will trigger any event listeners or v-model bindings associated with the input.

input.trigger('input');

1. At this point, you can make any necessary assertions to ensure that the component behaves as expected after the input has been triggered. For example, you can check if a computed property or a v-model has been updated correctly.

expect(wrapper.vm.value).toBe('Hello, world!');

Keep in mind that this is a simplified explanation and there may be variations depending on your specific use case. It's always a good idea to consult the official documentation for Vue Test Utils and Jest for more detailed information.