My react app works correctly, but tests not
Unit test returns error, but when I launch my app everything works.
The problem is, that when callOnSubmitWithData() is returned in arrow function as onPress callback, mocked onSubmit function is not called, but in launched app everything works.
Unit test in Jest with enzyme:
const setup = (propOverrides) =>
const props = Object.assign(
fields: ,
error: '',
onSubmit()
, propOverrides);
const wrapper = shallow(
<Form ...props/>
);
return
props,
wrapper
;
;
it('sends fields data to callback after push submit button', () =>
const inputValue = 'Some text';
const submitCallback = jest.fn();
const wrapper, props = setup(
onSubmit: submitCallback,
fields: [
key: 'first',
value: inputValue
,
key: 'second',
value: inputValue
]
);
const output =
[props.fields[0].key]: inputValue,
[props.fields[1].key]: inputValue
;
wrapper.setState(isSubmitDisabled: false);
wrapper.update();
wrapper.find(Button).simulate('click');
expect(submitCallback).toHaveBeenCalledWith(output);
);
And my part of my component:
class Form extends React.Component
constructor(props)
super(props);
//Create State
//Other bindings
this.callOnSubmitWithData = this.callOnSubmitWithData.bind(this);
//...
callOnSubmitWithData()
const data = this.extractFieldsData();
this.props.onSubmit(data);
extractFieldsData()
//Returns object with all fields values
render()
const fields, error, buttonTitle = this.props;
return (
<View>
<View>
fields.map((data) =>
//...
return (<AuthTextInput/>);
)
</View>
<Button
title=buttonTitle
onPress=() => this.callOnSubmitWithData()
disabled=this.state.isSubmitDisabled
/>
</View>
);
export default Form;
javascript reactjs jestjs
add a comment |
Unit test returns error, but when I launch my app everything works.
The problem is, that when callOnSubmitWithData() is returned in arrow function as onPress callback, mocked onSubmit function is not called, but in launched app everything works.
Unit test in Jest with enzyme:
const setup = (propOverrides) =>
const props = Object.assign(
fields: ,
error: '',
onSubmit()
, propOverrides);
const wrapper = shallow(
<Form ...props/>
);
return
props,
wrapper
;
;
it('sends fields data to callback after push submit button', () =>
const inputValue = 'Some text';
const submitCallback = jest.fn();
const wrapper, props = setup(
onSubmit: submitCallback,
fields: [
key: 'first',
value: inputValue
,
key: 'second',
value: inputValue
]
);
const output =
[props.fields[0].key]: inputValue,
[props.fields[1].key]: inputValue
;
wrapper.setState(isSubmitDisabled: false);
wrapper.update();
wrapper.find(Button).simulate('click');
expect(submitCallback).toHaveBeenCalledWith(output);
);
And my part of my component:
class Form extends React.Component
constructor(props)
super(props);
//Create State
//Other bindings
this.callOnSubmitWithData = this.callOnSubmitWithData.bind(this);
//...
callOnSubmitWithData()
const data = this.extractFieldsData();
this.props.onSubmit(data);
extractFieldsData()
//Returns object with all fields values
render()
const fields, error, buttonTitle = this.props;
return (
<View>
<View>
fields.map((data) =>
//...
return (<AuthTextInput/>);
)
</View>
<Button
title=buttonTitle
onPress=() => this.callOnSubmitWithData()
disabled=this.state.isSubmitDisabled
/>
</View>
);
export default Form;
javascript reactjs jestjs
add a comment |
Unit test returns error, but when I launch my app everything works.
The problem is, that when callOnSubmitWithData() is returned in arrow function as onPress callback, mocked onSubmit function is not called, but in launched app everything works.
Unit test in Jest with enzyme:
const setup = (propOverrides) =>
const props = Object.assign(
fields: ,
error: '',
onSubmit()
, propOverrides);
const wrapper = shallow(
<Form ...props/>
);
return
props,
wrapper
;
;
it('sends fields data to callback after push submit button', () =>
const inputValue = 'Some text';
const submitCallback = jest.fn();
const wrapper, props = setup(
onSubmit: submitCallback,
fields: [
key: 'first',
value: inputValue
,
key: 'second',
value: inputValue
]
);
const output =
[props.fields[0].key]: inputValue,
[props.fields[1].key]: inputValue
;
wrapper.setState(isSubmitDisabled: false);
wrapper.update();
wrapper.find(Button).simulate('click');
expect(submitCallback).toHaveBeenCalledWith(output);
);
And my part of my component:
class Form extends React.Component
constructor(props)
super(props);
//Create State
//Other bindings
this.callOnSubmitWithData = this.callOnSubmitWithData.bind(this);
//...
callOnSubmitWithData()
const data = this.extractFieldsData();
this.props.onSubmit(data);
extractFieldsData()
//Returns object with all fields values
render()
const fields, error, buttonTitle = this.props;
return (
<View>
<View>
fields.map((data) =>
//...
return (<AuthTextInput/>);
)
</View>
<Button
title=buttonTitle
onPress=() => this.callOnSubmitWithData()
disabled=this.state.isSubmitDisabled
/>
</View>
);
export default Form;
javascript reactjs jestjs
Unit test returns error, but when I launch my app everything works.
The problem is, that when callOnSubmitWithData() is returned in arrow function as onPress callback, mocked onSubmit function is not called, but in launched app everything works.
Unit test in Jest with enzyme:
const setup = (propOverrides) =>
const props = Object.assign(
fields: ,
error: '',
onSubmit()
, propOverrides);
const wrapper = shallow(
<Form ...props/>
);
return
props,
wrapper
;
;
it('sends fields data to callback after push submit button', () =>
const inputValue = 'Some text';
const submitCallback = jest.fn();
const wrapper, props = setup(
onSubmit: submitCallback,
fields: [
key: 'first',
value: inputValue
,
key: 'second',
value: inputValue
]
);
const output =
[props.fields[0].key]: inputValue,
[props.fields[1].key]: inputValue
;
wrapper.setState(isSubmitDisabled: false);
wrapper.update();
wrapper.find(Button).simulate('click');
expect(submitCallback).toHaveBeenCalledWith(output);
);
And my part of my component:
class Form extends React.Component
constructor(props)
super(props);
//Create State
//Other bindings
this.callOnSubmitWithData = this.callOnSubmitWithData.bind(this);
//...
callOnSubmitWithData()
const data = this.extractFieldsData();
this.props.onSubmit(data);
extractFieldsData()
//Returns object with all fields values
render()
const fields, error, buttonTitle = this.props;
return (
<View>
<View>
fields.map((data) =>
//...
return (<AuthTextInput/>);
)
</View>
<Button
title=buttonTitle
onPress=() => this.callOnSubmitWithData()
disabled=this.state.isSubmitDisabled
/>
</View>
);
export default Form;
const setup = (propOverrides) =>
const props = Object.assign(
fields: ,
error: '',
onSubmit()
, propOverrides);
const wrapper = shallow(
<Form ...props/>
);
return
props,
wrapper
;
;
it('sends fields data to callback after push submit button', () =>
const inputValue = 'Some text';
const submitCallback = jest.fn();
const wrapper, props = setup(
onSubmit: submitCallback,
fields: [
key: 'first',
value: inputValue
,
key: 'second',
value: inputValue
]
);
const output =
[props.fields[0].key]: inputValue,
[props.fields[1].key]: inputValue
;
wrapper.setState(isSubmitDisabled: false);
wrapper.update();
wrapper.find(Button).simulate('click');
expect(submitCallback).toHaveBeenCalledWith(output);
);
const setup = (propOverrides) =>
const props = Object.assign(
fields: ,
error: '',
onSubmit()
, propOverrides);
const wrapper = shallow(
<Form ...props/>
);
return
props,
wrapper
;
;
it('sends fields data to callback after push submit button', () =>
const inputValue = 'Some text';
const submitCallback = jest.fn();
const wrapper, props = setup(
onSubmit: submitCallback,
fields: [
key: 'first',
value: inputValue
,
key: 'second',
value: inputValue
]
);
const output =
[props.fields[0].key]: inputValue,
[props.fields[1].key]: inputValue
;
wrapper.setState(isSubmitDisabled: false);
wrapper.update();
wrapper.find(Button).simulate('click');
expect(submitCallback).toHaveBeenCalledWith(output);
);
class Form extends React.Component
constructor(props)
super(props);
//Create State
//Other bindings
this.callOnSubmitWithData = this.callOnSubmitWithData.bind(this);
//...
callOnSubmitWithData()
const data = this.extractFieldsData();
this.props.onSubmit(data);
extractFieldsData()
//Returns object with all fields values
render()
const fields, error, buttonTitle = this.props;
return (
<View>
<View>
fields.map((data) =>
//...
return (<AuthTextInput/>);
)
</View>
<Button
title=buttonTitle
onPress=() => this.callOnSubmitWithData()
disabled=this.state.isSubmitDisabled
/>
</View>
);
export default Form;
class Form extends React.Component
constructor(props)
super(props);
//Create State
//Other bindings
this.callOnSubmitWithData = this.callOnSubmitWithData.bind(this);
//...
callOnSubmitWithData()
const data = this.extractFieldsData();
this.props.onSubmit(data);
extractFieldsData()
//Returns object with all fields values
render()
const fields, error, buttonTitle = this.props;
return (
<View>
<View>
fields.map((data) =>
//...
return (<AuthTextInput/>);
)
</View>
<Button
title=buttonTitle
onPress=() => this.callOnSubmitWithData()
disabled=this.state.isSubmitDisabled
/>
</View>
);
export default Form;
javascript reactjs jestjs
javascript reactjs jestjs
edited Nov 13 '18 at 9:56
skyboyer
3,61611128
3,61611128
asked Jun 21 '18 at 10:03
Szustka124Szustka124
215
215
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
The reason is simulate()
. You attach handler to onPress
but calling simulate('click')
.
You need to call exactly onPress
. Maybe simulate('press')
will work.
If not you can just
wrapper.find(Button).props().onPress();
wrapper.update();
and then your mock will be run.
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
The reason is simulate()
. You attach handler to onPress
but calling simulate('click')
.
You need to call exactly onPress
. Maybe simulate('press')
will work.
If not you can just
wrapper.find(Button).props().onPress();
wrapper.update();
and then your mock will be run.
add a comment |
The reason is simulate()
. You attach handler to onPress
but calling simulate('click')
.
You need to call exactly onPress
. Maybe simulate('press')
will work.
If not you can just
wrapper.find(Button).props().onPress();
wrapper.update();
and then your mock will be run.
add a comment |
The reason is simulate()
. You attach handler to onPress
but calling simulate('click')
.
You need to call exactly onPress
. Maybe simulate('press')
will work.
If not you can just
wrapper.find(Button).props().onPress();
wrapper.update();
and then your mock will be run.
The reason is simulate()
. You attach handler to onPress
but calling simulate('click')
.
You need to call exactly onPress
. Maybe simulate('press')
will work.
If not you can just
wrapper.find(Button).props().onPress();
wrapper.update();
and then your mock will be run.
answered Nov 13 '18 at 10:11
skyboyerskyboyer
3,61611128
3,61611128
add a comment |
add a comment |
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