I have a delete confirmation panel which is disabled by default when then component loads and is shown only when the delete button is clicked
{this.state.deleteConfirmation && (
<div id="confirmation">
<Checkbox
inputId="deleteBlogConfirmation"
checked={this.state.confirmation}
onChange={this.toggleConfirmation}
></Checkbox>
<label
htmlFor="deleteBlogConfirmation"
className="p-checkbox-label"
>
Are You Sure?
</label>
<Button
label="Yes"
icon="pi pi-check"
disabled={!this.state.confirmation}
onClick={this.props.onDeleteConfirm}
className="p-button-danger"
/>
<Button
label="No"
icon="pi pi-times"
onClick={this.hideDeleteConfirmation}
className="p-button-secondary"
/>
</div>
)}
the value is true when component loads
this.state = {
confirmation: false,
deleteConfirmation: false
};
the hideDeleteConformation method hides this panel if user clicks on "No" at confirmation
hideDeleteConfirmation() {
this.setState({ deleteConfirmation: false });
}
The test fails when I assert deleteConfirmation
to be false with error // , Received: undefined
it("hides delete confirmation panel on clicking no button", () => {
const mockDialogFn = jest.fn();
const actionButtons = mount(
<Router>
<BlogActionButtons
rowData={rowData}
onDeleteConfirm={mockDialogFn}
/>
</Router>
);
actionButtons.find(".p-button-danger").at(0).simulate('click');
expect(actionButtons.props().deleteConfirmation).toBeTruthy(); // , Received: undefined at this line
actionButtons.find('.p-button-secondary').at(0).simulate('click');
expect(actionButtons.props().deleteConfirmation).toBeFalsy();
});
If I switch to
expect(actionButtons.state().deleteConfirmation).toBeTruthy();
I get the error TypeError: Cannot read property 'deleteConfirmation' of null
for the same line.
How do I test that deleteConfirmation
changes to true/false again on click of respective buttons.
.props()
gets values by their name, not the function that it calls. This is what you're looking for:
expect(actionButtons.prop('onClick')).toBeTruthy()
EDIT: In order to test, you first click and then assert whether or not the html element(s) actually exist in the DOM. Personally, I suggest find
ing by component, as opposed to assigned IDs
const cancelButton = actionButtons.find(Button).at(1) // might not be correct depending on the rest of your component
cancelButton.prop('onClick')()
const confirmationDomElement = actionButtons.find('#confirmation')
expect(confirmationDomElement.exists()).toEqual(false)
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.