Writing test cases using Jest and Enzyme












0















I am working on writing test cases for a project. I am writing the test for my Container. The container has a function which is as shown below:



getContactDetails = (reqObject) => {
app.outageCenterService.getContact(reqObject).then(
response => {
app.logger.getLogger().info('Below is the response...');
app.logger.getLogger().info(this.state.contactDetails);
this.setState({contactDetails: response.contactDetails},()=>{});
if (this.state.contactDetails.isContactPresent) {
this.setState({ isVisible: true });
} else {
this.setState({ isVisible: false });
}
},
reject => {
app.logger.getLogger().info(reject);
}
);
}


While running the test,in the function,the line app.outageCenterService.getContact(reqObject) throws an error saying TypeError: Cannot read property 'getContact' of undefined. I understand its because outageCenterService is globally defined and jest/enzyme is not able to find it. But I don't know how to solve this issue.



My test looks something like this:



  describe('test the OutageAlert Component', () => {
let outageAlert, errorHandlerFn;
errorHandlerFn=jest.fn();
getContactFn=jest.fn();
outageAlert = shallow(<OutageAlertComponent errorHandler={errorHandlerFn} getContact={getContactFn} />);
});


Can anyone please help me with this on how to write the test case for this scenario?










share|improve this question

























  • is app on the global, as window.app.outageCenterService.getContact?

    – GibboK
    Nov 20 '18 at 13:35


















0















I am working on writing test cases for a project. I am writing the test for my Container. The container has a function which is as shown below:



getContactDetails = (reqObject) => {
app.outageCenterService.getContact(reqObject).then(
response => {
app.logger.getLogger().info('Below is the response...');
app.logger.getLogger().info(this.state.contactDetails);
this.setState({contactDetails: response.contactDetails},()=>{});
if (this.state.contactDetails.isContactPresent) {
this.setState({ isVisible: true });
} else {
this.setState({ isVisible: false });
}
},
reject => {
app.logger.getLogger().info(reject);
}
);
}


While running the test,in the function,the line app.outageCenterService.getContact(reqObject) throws an error saying TypeError: Cannot read property 'getContact' of undefined. I understand its because outageCenterService is globally defined and jest/enzyme is not able to find it. But I don't know how to solve this issue.



My test looks something like this:



  describe('test the OutageAlert Component', () => {
let outageAlert, errorHandlerFn;
errorHandlerFn=jest.fn();
getContactFn=jest.fn();
outageAlert = shallow(<OutageAlertComponent errorHandler={errorHandlerFn} getContact={getContactFn} />);
});


Can anyone please help me with this on how to write the test case for this scenario?










share|improve this question

























  • is app on the global, as window.app.outageCenterService.getContact?

    – GibboK
    Nov 20 '18 at 13:35
















0












0








0








I am working on writing test cases for a project. I am writing the test for my Container. The container has a function which is as shown below:



getContactDetails = (reqObject) => {
app.outageCenterService.getContact(reqObject).then(
response => {
app.logger.getLogger().info('Below is the response...');
app.logger.getLogger().info(this.state.contactDetails);
this.setState({contactDetails: response.contactDetails},()=>{});
if (this.state.contactDetails.isContactPresent) {
this.setState({ isVisible: true });
} else {
this.setState({ isVisible: false });
}
},
reject => {
app.logger.getLogger().info(reject);
}
);
}


While running the test,in the function,the line app.outageCenterService.getContact(reqObject) throws an error saying TypeError: Cannot read property 'getContact' of undefined. I understand its because outageCenterService is globally defined and jest/enzyme is not able to find it. But I don't know how to solve this issue.



My test looks something like this:



  describe('test the OutageAlert Component', () => {
let outageAlert, errorHandlerFn;
errorHandlerFn=jest.fn();
getContactFn=jest.fn();
outageAlert = shallow(<OutageAlertComponent errorHandler={errorHandlerFn} getContact={getContactFn} />);
});


Can anyone please help me with this on how to write the test case for this scenario?










share|improve this question
















I am working on writing test cases for a project. I am writing the test for my Container. The container has a function which is as shown below:



getContactDetails = (reqObject) => {
app.outageCenterService.getContact(reqObject).then(
response => {
app.logger.getLogger().info('Below is the response...');
app.logger.getLogger().info(this.state.contactDetails);
this.setState({contactDetails: response.contactDetails},()=>{});
if (this.state.contactDetails.isContactPresent) {
this.setState({ isVisible: true });
} else {
this.setState({ isVisible: false });
}
},
reject => {
app.logger.getLogger().info(reject);
}
);
}


While running the test,in the function,the line app.outageCenterService.getContact(reqObject) throws an error saying TypeError: Cannot read property 'getContact' of undefined. I understand its because outageCenterService is globally defined and jest/enzyme is not able to find it. But I don't know how to solve this issue.



My test looks something like this:



  describe('test the OutageAlert Component', () => {
let outageAlert, errorHandlerFn;
errorHandlerFn=jest.fn();
getContactFn=jest.fn();
outageAlert = shallow(<OutageAlertComponent errorHandler={errorHandlerFn} getContact={getContactFn} />);
});


Can anyone please help me with this on how to write the test case for this scenario?







reactjs jestjs enzyme






share|improve this question















share|improve this question













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share|improve this question








edited Nov 20 '18 at 17:20









skyboyer

3,83311229




3,83311229










asked Nov 20 '18 at 10:08









pranamipranami

239314




239314













  • is app on the global, as window.app.outageCenterService.getContact?

    – GibboK
    Nov 20 '18 at 13:35





















  • is app on the global, as window.app.outageCenterService.getContact?

    – GibboK
    Nov 20 '18 at 13:35



















is app on the global, as window.app.outageCenterService.getContact?

– GibboK
Nov 20 '18 at 13:35







is app on the global, as window.app.outageCenterService.getContact?

– GibboK
Nov 20 '18 at 13:35














1 Answer
1






active

oldest

votes


















0














You could consider use the globals config



http://facebook.github.io/jest/docs/api.html#globals-object or create a file and



and create a mock in jest for you global, then you can access it from your test.



Alternatively you could have your container accepting an argument for your contact



getContactDetails = (reqObject, contact) => { ...}



so you can pass it in your test and wherever you container is being used.






share|improve this answer
























  • I am not allowed to change the code.So, how do I write the test in this case.So, do I have to create a mock function with for getContactDetails ? I am sorry I didn't get how to proceed.

    – pranami
    Nov 22 '18 at 10:58











  • in this case you can use mock with globals-object

    – GibboK
    Nov 23 '18 at 18:54











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1 Answer
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active

oldest

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1 Answer
1






active

oldest

votes









active

oldest

votes






active

oldest

votes









0














You could consider use the globals config



http://facebook.github.io/jest/docs/api.html#globals-object or create a file and



and create a mock in jest for you global, then you can access it from your test.



Alternatively you could have your container accepting an argument for your contact



getContactDetails = (reqObject, contact) => { ...}



so you can pass it in your test and wherever you container is being used.






share|improve this answer
























  • I am not allowed to change the code.So, how do I write the test in this case.So, do I have to create a mock function with for getContactDetails ? I am sorry I didn't get how to proceed.

    – pranami
    Nov 22 '18 at 10:58











  • in this case you can use mock with globals-object

    – GibboK
    Nov 23 '18 at 18:54
















0














You could consider use the globals config



http://facebook.github.io/jest/docs/api.html#globals-object or create a file and



and create a mock in jest for you global, then you can access it from your test.



Alternatively you could have your container accepting an argument for your contact



getContactDetails = (reqObject, contact) => { ...}



so you can pass it in your test and wherever you container is being used.






share|improve this answer
























  • I am not allowed to change the code.So, how do I write the test in this case.So, do I have to create a mock function with for getContactDetails ? I am sorry I didn't get how to proceed.

    – pranami
    Nov 22 '18 at 10:58











  • in this case you can use mock with globals-object

    – GibboK
    Nov 23 '18 at 18:54














0












0








0







You could consider use the globals config



http://facebook.github.io/jest/docs/api.html#globals-object or create a file and



and create a mock in jest for you global, then you can access it from your test.



Alternatively you could have your container accepting an argument for your contact



getContactDetails = (reqObject, contact) => { ...}



so you can pass it in your test and wherever you container is being used.






share|improve this answer













You could consider use the globals config



http://facebook.github.io/jest/docs/api.html#globals-object or create a file and



and create a mock in jest for you global, then you can access it from your test.



Alternatively you could have your container accepting an argument for your contact



getContactDetails = (reqObject, contact) => { ...}



so you can pass it in your test and wherever you container is being used.







share|improve this answer












share|improve this answer



share|improve this answer










answered Nov 20 '18 at 13:40









GibboKGibboK

34.7k107318545




34.7k107318545













  • I am not allowed to change the code.So, how do I write the test in this case.So, do I have to create a mock function with for getContactDetails ? I am sorry I didn't get how to proceed.

    – pranami
    Nov 22 '18 at 10:58











  • in this case you can use mock with globals-object

    – GibboK
    Nov 23 '18 at 18:54



















  • I am not allowed to change the code.So, how do I write the test in this case.So, do I have to create a mock function with for getContactDetails ? I am sorry I didn't get how to proceed.

    – pranami
    Nov 22 '18 at 10:58











  • in this case you can use mock with globals-object

    – GibboK
    Nov 23 '18 at 18:54

















I am not allowed to change the code.So, how do I write the test in this case.So, do I have to create a mock function with for getContactDetails ? I am sorry I didn't get how to proceed.

– pranami
Nov 22 '18 at 10:58





I am not allowed to change the code.So, how do I write the test in this case.So, do I have to create a mock function with for getContactDetails ? I am sorry I didn't get how to proceed.

– pranami
Nov 22 '18 at 10:58













in this case you can use mock with globals-object

– GibboK
Nov 23 '18 at 18:54





in this case you can use mock with globals-object

– GibboK
Nov 23 '18 at 18:54




















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