我正在从配置中填充表单字段,并且在用户更新字段后,我将更新的字段与之前使用“isEqual”获取的配置进行比较。如果“isEqual = false”我启用提交按钮。我在用 jest 模拟这种行为时遇到了一些麻烦。任何人都可以帮助这个测试用例吗?
下面是我的示例代码片段:
const [areValuesEqual, setAreValuesEqual] = React.useState(true);
const onSubmit = React.useCallback(values => {
if (!isEqual(originalValues, values)) {
console.log('submitted.');
props.handleNext(values);
}
console.log("didn't submit.");}, [props, originalValues]);
useEffect(() => setAreValuesEqual(isEqual(originalValues, formik.values)), [formik.values, originalValues]);
<div>
<Button
type="submit"
variant="contained"
color="primary"
className={classes.button}
data-testid="next"
disabled={areValuesEqual}
>
Next
</Button>
</div>
这是我的测试:
describe('FormComponent', () => {
const Spec = {
appName: 'somerepo',
repo: 'project-somerepo',
proxies: [
{
env: {
dev: {
basepath: '/somerepo-dev.net',
target: 'https://somerepo-dev.net',
},
test: {
basepath: '/somerepo-test.net',
target: 'https://somerepo-test.net',
}
},
},
],
};
function renderFormComponent() {
return render(
<ManageFormComponent metadata={metadata} handleNext={() => { }} />
);
}
it.only('should render form', async () => {
await act(async () => {
renderFormComponent();
await Promise.resolve();
});
expect(screen).toBeDefined();
expect(screen.getByText('Project Repo')).toBeInTheDocument();
const Repo = await screen.findByTestId('Repo');
const RepoInput = Repo.querySelector('input')!;
RepoInput.focus();
fireEvent.change(document.activeElement!, {
target: { value: 'project-somerepo' },
});
fireEvent.keyDown(document.activeElement!, { key: 'ArrowDown' });
fireEvent.keyDown(document.activeElement!, { key: 'Enter' });
expect(await screen.findByText('I want to')).toBeInTheDocument();
const deploy = await screen.findByTestId('deployment');
const deployInput = deploy.querySelector('input')!;
deployInput.focus();
fireEvent.change(document.activeElement!, {
target: { value: 'promote service' },
});
fireEvent.keyDown(document.activeElement!, { key: 'ArrowDown' });
fireEvent.keyDown(document.activeElement!, { key: 'Enter' });
expect(
await screen.findByText('Select an environment to deploy'),
).toBeInTheDocument();
const env = await screen.findByLabelText('TEST');
userEvent.click(env);
const Target = await screen.findByText('Target Endpoint')
expect(Target).toBeInTheDocument();
expect(await screen.findByTestId('target')).toHaveValue(
Spec.proxies[0].env.dev.target,
);
const Basepath = await screen.findByText('BasePath')
expect(Basepath).toBeInTheDocument();
expect(await screen.findByTestId('basepath')).toHaveValue(
Spec.proxies[0].env.dev.basepath,
);
const TargetInput = Target.querySelector('input')
TargetInput?.focus();
fireEvent.change(document.activeElement!, {
target: { value: 'https://somerepo-test.net' }
})
const BasepathInput = Basepath.querySelector('input')
BasepathInput?.focus();
fireEvent.change(document.activeElement!, {
target: { value: '/somerepo-test.net' }
})
const nextButton = await screen.findByRole('button', { name: /Next/ });
expect(nextButton).toBeEnabled();
});
}); ```
I get below error, which i believe is happening due to useEffect hook, where I compare the values of fetched values and updated values. If they are not equal, then submit button is enabled. For example below are the JSON objects are being compared:
expect(element).toBeEnabled()
Received element is not enabled:
<button class="MuiButtonBase-root MuiButton-root MuiButton-contained makeStyles-button-6 MuiButton-containedPrimary Mui-disabled Mui-disabled" data-testid="next" disa
bled="" tabindex="-1" type="submit" />
336 |
337 | // expect(nextButton).toBeTruthy();
> 338 | expect(nextButton).toBeEnabled();
| ^
339 | });