[英]Jest test write on textarea input
I am trying to write some mock string to a textarea using Jest and then press Enter but it does not work for whatever reason.我正在尝试使用 Jest 将一些模拟字符串写入文本区域,然后按 Enter,但无论出于何种原因它都不起作用。 My code so far:
到目前为止我的代码:
test('Should add a message', () => {
const element = wrapper.find('textarea');
element.instance().value = 'abc';
element.simulate('keypress', { key: 'Enter' });
const newWrapper = wrapper.find('user');
expect(newWrapper.length).toBe(1);
});
My component:我的组件:
<textarea
onKeyUp={sendMessage}
placeholder='Type your message here and press enter to send...'
cols='30'
rows='5'
></textarea>
Just to be clear the textarea is definitely there as the following test passes:只是为了清楚 textarea 在以下测试通过时肯定存在:
test('Should have a textarea', () => {
const element = wrapper.find('textarea');
expect(element.length).toBe(1);
});
In your case, what you are looking for is 'keyUp'
, not 'keypress'
.在您的情况下,您正在寻找的是
'keyUp'
,而不是'keypress'
。 And instead of key
, use keyCode
.而不是
key
,使用keyCode
。 The keyCode
for Enter
is 13
. Enter
的keyCode
是13
。
Like this:像这样:
element.simulate('keyUp', { keyCode: 13 });
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