I am doing testing using https://testing-library.com/
Here is my Reactive form:
this.createForm = this.formBuilder.group({
'Id': new FormControl({ value: 0, disabled: true }, [Validators.required]),
'Name': new FormControl('', { validators: [ValidationService.required, ValidationService.SubsystemMxLenght, ValidationService.SubsystemPatternMatch], updateOn: 'blur' }),
'UpdatedByName': new FormControl({ value: this.appUserName, disabled: true }, []),
'UpdatedDate': new FormControl({ value: '', disabled: true }, [])
});
from the library's recommendation, I am setting value to form field like this:
component.input(component.getByTestId('form-create-name-field-1'), {
target: {
value: data.Name /* value not setting since we use updateOn value, so it's null */
}
});
component.input(component.getByTestId('form-create-name-field-2'), {
target: {
value: data.UpdatedByName
}
});
In which I am not able to set the value with Name
, If I remove the param updateOn: 'blur'
- from the form, it sets. how to fix this? what is the issue with my form otherwise?
any one help me please?
UPDATE: component function:
onCreateFormSubmit() {
this.ssCreated.emit(created);
}
testing both onCreateFormSubmit
and ssCreated
- but ssCreated
not works:
spec file:
test('Testing add Subsystem operation', async () => {
const data = {
Id: 2,
Name: 'subsystem2',
IsDeletePossible: true,
CreatedBy: '',
CreatedDate: new Date(),
UpdatedBy: '',
UpdatedDate: new Date(),
UpdatedByName: 'test value',
CreatedByName: ''
} as ModelSubSystem;
const ssCreated = jest.fn();
const component = await render(SubSystemComponent, {
schemas: [CUSTOM_ELEMENTS_SCHEMA],
imports: [
HttpClientTestingModule,
FormsModule,
ReactiveFormsModule,
StoreModule.forRoot({}, { runtimeChecks: { strictStateImmutability: true, strictActionImmutability: true } }),
StoreModule.forFeature('pfservice', reducer),
EffectsModule.forRoot([]),
EffectsModule.forFeature([EffectsSubSystem])
],
componentProperties: {
onCreateFormSubmit: jest.fn(),
ssCreated: {
emit: data
} as any,
}
});
const componentInstance = component.fixture.componentInstance;
/*
* Testing the form by DOM.
*/
const createButton = component.getByTestId('btn-addRow');
component.click(createButton);
component.fixture.detectChanges();
// status changes because of click on button
expect(componentInstance.crud.isCreate).toBeTruthy();
component.fixture.detectChanges();
// onclick submit should not called, becasue of empty input
component.input(component.getByTestId('form-create-name-field-0'), {
target: {
value: data.Id
}
});
component.input(component.getByTestId('form-create-name-field-1'), {
target: {
value: data.Name
}
});
component.blur(component.getByTestId('form-create-name-field-1'));
component.input(component.getByTestId('form-create-name-field-2'), {
target: {
value: data.UpdatedByName
}
});
const submit = component.getAllByTestId('form-create-btn')[0];
component.click(submit);
component.fixture.detectChanges();
const name = componentInstance.createForm.controls['Name'];
const updatedByName = componentInstance.createForm.controls['UpdatedByName'];
expect(name.value).toEqual(data.Name);
expect(name.errors).toBeFalsy();
expect(updatedByName.value).toEqual(data.UpdatedByName);
expect(componentInstance.onCreateFormSubmit).toBeCalled(); //works
// console.log(componentInstance.createForm.getRawValue());
console.log(data);
expect(ssCreated).toHaveBeenCalledWith(data); //not works
});
updateOne
will only fire when the input is blurred, that's why you'll have to do:
component.input(component.getByTestId('form-create-name-field-1'), {
target: {
value: data.Name
}
});
// this line here
component.blur(component.getByTestId('form-create-name-field-1'));
I created an example here https://github.com/testing-library/angular-testing-library/commit/6989a66cfe2d0dfb66dcbb9566bf122307edca6c