Spy a method that has been called when onPress on an Alert Announcing the arrival of Valued Associate #679: Cesar Manara Planned maintenance scheduled April 23, 2019 at 23:30 UTC (7:30pm US/Eastern) Data science time! April 2019 and salary with experience The Ask Question Wizard is Live!Testing changes to React component state and spying on instance methods using enzymereact-native component testing unknown prop errorsTesting a function called on an object with Jest in React NativeShallow render with enzyme can't find elementsSpying on chained method calls with Jest not workingInvariant Violation: Element type is invalid: expected a string (for built-in components) when testing with enzyme mountHow to test for a react component method been called by another methodTypeError: specificMockImpl.apply is not a functionWhen I “simulate('click')” on wrapper child component button which calls onClick function, root component props doesn't updatingdeleteSeriesByID - mock function not called JS
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Spy a method that has been called when onPress on an Alert
Announcing the arrival of Valued Associate #679: Cesar Manara
Planned maintenance scheduled April 23, 2019 at 23:30 UTC (7:30pm US/Eastern)
Data science time! April 2019 and salary with experience
The Ask Question Wizard is Live!Testing changes to React component state and spying on instance methods using enzymereact-native component testing unknown prop errorsTesting a function called on an object with Jest in React NativeShallow render with enzyme can't find elementsSpying on chained method calls with Jest not workingInvariant Violation: Element type is invalid: expected a string (for built-in components) when testing with enzyme mountHow to test for a react component method been called by another methodTypeError: specificMockImpl.apply is not a functionWhen I “simulate('click')” on wrapper child component button which calls onClick function, root component props doesn't updatingdeleteSeriesByID - mock function not called JS
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0
I am trying to test a removeService method that gets called when onPress 'ing inside an Alert like this
Alert.alert(
[...],
onPress: () => removeService();
);
}
this is the test:
const spyAlert = jest.spyOn(Alert,
"alert");
const spyRemoveService = jest.fn();
const wrapper = shallow(
<Component removeService=spyRemoveService />
);
wrapper
.find("RemoveServiceButton")
.props()
.handleRemoveService();
// Click onPress
spyAlert.mock.calls[0][2][1].onPress();
expect(spyRemoveService).toHaveBeenCalledTimes(1);
However, when I run the test I get TypeError: removeService is not a function
why?
reactjs react-native testing jestjs enzyme
edited Mar 22 at 15:43
Herman Starikov
1,076616
asked Mar 22 at 11:23
ismael olivaismael oliva
377
|
show 4 more comments
0
I am trying to test a removeService method that gets called when onPress 'ing inside an Alert like this
Alert.alert(
[...],
onPress: () => removeService();
);
}
this is the test:
const spyAlert = jest.spyOn(Alert,
"alert");
const spyRemoveService = jest.fn();
const wrapper = shallow(
<Component removeService=spyRemoveService />
);
wrapper
.find("RemoveServiceButton")
.props()
.handleRemoveService();
// Click onPress
spyAlert.mock.calls[0][2][1].onPress();
expect(spyRemoveService).toHaveBeenCalledTimes(1);
However, when I run the test I get TypeError: removeService is not a function
why?
reactjs react-native testing jestjs enzyme
edited Mar 22 at 15:43
Herman Starikov
1,076616
asked Mar 22 at 11:23
ismael olivaismael oliva
377
IsremoveServiceworking if you test it manually?
– Tholle
Mar 22 at 11:31
Yes, its working in the RN app
– ismael oliva
Mar 22 at 11:33
What's AddServiceProgressScreen? Please post all relevant code, not just pieces of it.
– estus
Mar 22 at 11:41
It's just the name of the component, the most important stuff is there: the spy, the method and the Alert. I have edited it.
– ismael oliva
Mar 22 at 11:49
Can you show more context around whereAlert.alert()gets called?
– brian-lives-outdoors
Mar 22 at 16:09
|
show 4 more comments
0
0
0
I am trying to test a removeService method that gets called when onPress 'ing inside an Alert like this
Alert.alert(
[...],
onPress: () => removeService();
);
}
this is the test:
const spyAlert = jest.spyOn(Alert,
"alert");
const spyRemoveService = jest.fn();
const wrapper = shallow(
<Component removeService=spyRemoveService />
);
wrapper
.find("RemoveServiceButton")
.props()
.handleRemoveService();
// Click onPress
spyAlert.mock.calls[0][2][1].onPress();
expect(spyRemoveService).toHaveBeenCalledTimes(1);
However, when I run the test I get TypeError: removeService is not a function
why?
reactjs react-native testing jestjs enzyme
edited Mar 22 at 15:43
Herman Starikov
1,076616
asked Mar 22 at 11:23
ismael olivaismael oliva
377
I am trying to test a removeService method that gets called when onPress 'ing inside an Alert like this
Alert.alert(
[...],
onPress: () => removeService();
);
}
this is the test:
const spyAlert = jest.spyOn(Alert,
"alert");
const spyRemoveService = jest.fn();
const wrapper = shallow(
<Component removeService=spyRemoveService />
);
wrapper
.find("RemoveServiceButton")
.props()
.handleRemoveService();
// Click onPress
spyAlert.mock.calls[0][2][1].onPress();
expect(spyRemoveService).toHaveBeenCalledTimes(1);
However, when I run the test I get TypeError: removeService is not a function
why?
reactjs react-native testing jestjs enzyme
reactjs react-native testing jestjs enzyme
edited Mar 22 at 15:43
Herman Starikov
1,076616
asked Mar 22 at 11:23
ismael olivaismael oliva
377
edited Mar 22 at 15:43
Herman Starikov
1,076616
asked Mar 22 at 11:23
ismael olivaismael oliva
377
edited Mar 22 at 15:43
Herman Starikov
1,076616
edited Mar 22 at 15:43
Herman Starikov
1,076616
edited Mar 22 at 15:43
Herman Starikov
1,076616
1,076616
asked Mar 22 at 11:23
ismael olivaismael oliva
377
asked Mar 22 at 11:23
ismael olivaismael oliva
377
asked Mar 22 at 11:23
ismael olivaismael oliva
377
377
IsremoveServiceworking if you test it manually?
– Tholle
Mar 22 at 11:31
Yes, its working in the RN app
– ismael oliva
Mar 22 at 11:33
What's AddServiceProgressScreen? Please post all relevant code, not just pieces of it.
– estus
Mar 22 at 11:41
It's just the name of the component, the most important stuff is there: the spy, the method and the Alert. I have edited it.
– ismael oliva
Mar 22 at 11:49
Can you show more context around whereAlert.alert()gets called?
– brian-lives-outdoors
Mar 22 at 16:09
|
show 4 more comments
IsremoveServiceworking if you test it manually?
– Tholle
Mar 22 at 11:31
Yes, its working in the RN app
– ismael oliva
Mar 22 at 11:33
What's AddServiceProgressScreen? Please post all relevant code, not just pieces of it.
– estus
Mar 22 at 11:41
It's just the name of the component, the most important stuff is there: the spy, the method and the Alert. I have edited it.
– ismael oliva
Mar 22 at 11:49
Can you show more context around whereAlert.alert()gets called?
– brian-lives-outdoors
Mar 22 at 16:09
Is
removeService working if you test it manually?– Tholle
Mar 22 at 11:31
Is
removeService working if you test it manually?– Tholle
Mar 22 at 11:31
Yes, its working in the RN app
– ismael oliva
Mar 22 at 11:33
Yes, its working in the RN app
– ismael oliva
Mar 22 at 11:33
What's AddServiceProgressScreen? Please post all relevant code, not just pieces of it.
– estus
Mar 22 at 11:41
What's AddServiceProgressScreen? Please post all relevant code, not just pieces of it.
– estus
Mar 22 at 11:41
It's just the name of the component, the most important stuff is there: the spy, the method and the Alert. I have edited it.
– ismael oliva
Mar 22 at 11:49
It's just the name of the component, the most important stuff is there: the spy, the method and the Alert. I have edited it.
– ismael oliva
Mar 22 at 11:49
Can you show more context around where
Alert.alert() gets called?– brian-lives-outdoors
Mar 22 at 16:09
Can you show more context around where
Alert.alert() gets called?– brian-lives-outdoors
Mar 22 at 16:09
|
show 4 more comments
0
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Is
removeServiceworking if you test it manually?– Tholle
Mar 22 at 11:31
Yes, its working in the RN app
– ismael oliva
Mar 22 at 11:33
What's AddServiceProgressScreen? Please post all relevant code, not just pieces of it.
– estus
Mar 22 at 11:41
It's just the name of the component, the most important stuff is there: the spy, the method and the Alert. I have edited it.
– ismael oliva
Mar 22 at 11:49
Can you show more context around where
Alert.alert()gets called?– brian-lives-outdoors
Mar 22 at 16:09