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Testing add multiple headers interceptor

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0

I am trying to Test an interceptor service like this:

import Injectable from '@angular/core';
import HttpInterceptor from '@angular/common/http';

@Injectable()

export class ChacheCtrlInterceptor implements HttpInterceptor 

 constructor() 

 intercept(req, next) 
 let httpCall = req.clone(
 headers: req.headers.set('Pragma', 'no-cache')
 .set('Cache-Control', 'no-cache')
 );
 return next.handle(httpCall);
 

This, just add this 2 headers to all the Http calls that I am doing in the application.

I know that for test if the interceptor adds the headers I have to do something like this:

it('should add Pragma header to request', () => 
 const req = new Http();
 expect(req.request.headers.has('Pragma')).toBeTruthy();
 expect(req.request.headers.get('Pragma')).toEqual('no-cache');
 );

it('should add Cache-Control header to request', () => {
 const req = new Http();
 expect(req.request.headers.has('Cache-Control')).toBeTruthy();
 expect(req.request.headers.get('Cache-Control')).toEqual('no-cache');

Any idea how can I coverage this code, I am new on karma testing :S

angular typescript testing jasmine karma-runner

share|improve this question

asked Mar 25 at 15:49

Arm144Arm144

4088 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  ng test --code-coverage. But you should first write a test that compiles, and that actually calls the method that you want to test.
  
  – JB Nizet
  Mar 25 at 15:52
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Its an interceptor...it will be called. You really shouldn't be giving advice.
  
  – TheBatman
  Mar 25 at 17:51
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @TheBatman no. If you never send any request, the interceptor will never be called. The posted code never sends any request, so the interceptor will never be called. You really should think before posting nonsense.
  
  – JB Nizet
  Mar 25 at 18:03
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Why should I when you've made an entire career out of it?
  
  – TheBatman
  Mar 25 at 18:17
  

  
  
  
  

add a comment | 

0

I am trying to Test an interceptor service like this:

import Injectable from '@angular/core';
import HttpInterceptor from '@angular/common/http';

@Injectable()

export class ChacheCtrlInterceptor implements HttpInterceptor 

 constructor() 

 intercept(req, next) 
 let httpCall = req.clone(
 headers: req.headers.set('Pragma', 'no-cache')
 .set('Cache-Control', 'no-cache')
 );
 return next.handle(httpCall);
 

This, just add this 2 headers to all the Http calls that I am doing in the application.

I know that for test if the interceptor adds the headers I have to do something like this:

it('should add Pragma header to request', () => 
 const req = new Http();
 expect(req.request.headers.has('Pragma')).toBeTruthy();
 expect(req.request.headers.get('Pragma')).toEqual('no-cache');
 );

it('should add Cache-Control header to request', () => {
 const req = new Http();
 expect(req.request.headers.has('Cache-Control')).toBeTruthy();
 expect(req.request.headers.get('Cache-Control')).toEqual('no-cache');

Any idea how can I coverage this code, I am new on karma testing :S

angular typescript testing jasmine karma-runner

share|improve this question

asked Mar 25 at 15:49

Arm144Arm144

4088 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  ng test --code-coverage. But you should first write a test that compiles, and that actually calls the method that you want to test.
  
  – JB Nizet
  Mar 25 at 15:52
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Its an interceptor...it will be called. You really shouldn't be giving advice.
  
  – TheBatman
  Mar 25 at 17:51
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @TheBatman no. If you never send any request, the interceptor will never be called. The posted code never sends any request, so the interceptor will never be called. You really should think before posting nonsense.
  
  – JB Nizet
  Mar 25 at 18:03
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Why should I when you've made an entire career out of it?
  
  – TheBatman
  Mar 25 at 18:17
  

  
  
  
  

add a comment | 

I am trying to Test an interceptor service like this:

import Injectable from '@angular/core';
import HttpInterceptor from '@angular/common/http';

@Injectable()

export class ChacheCtrlInterceptor implements HttpInterceptor 

 constructor() 

 intercept(req, next) 
 let httpCall = req.clone(
 headers: req.headers.set('Pragma', 'no-cache')
 .set('Cache-Control', 'no-cache')
 );
 return next.handle(httpCall);
 

This, just add this 2 headers to all the Http calls that I am doing in the application.

I know that for test if the interceptor adds the headers I have to do something like this:

it('should add Pragma header to request', () => 
 const req = new Http();
 expect(req.request.headers.has('Pragma')).toBeTruthy();
 expect(req.request.headers.get('Pragma')).toEqual('no-cache');
 );

it('should add Cache-Control header to request', () => {
 const req = new Http();
 expect(req.request.headers.has('Cache-Control')).toBeTruthy();
 expect(req.request.headers.get('Cache-Control')).toEqual('no-cache');

Any idea how can I coverage this code, I am new on karma testing :S

angular typescript testing jasmine karma-runner

share|improve this question

asked Mar 25 at 15:49

Arm144Arm144

4088 bronze badges

import Injectable from '@angular/core';
import HttpInterceptor from '@angular/common/http';

@Injectable()

export class ChacheCtrlInterceptor implements HttpInterceptor 

 constructor() 

 intercept(req, next) 
 let httpCall = req.clone(
 headers: req.headers.set('Pragma', 'no-cache')
 .set('Cache-Control', 'no-cache')
 );
 return next.handle(httpCall);
 

it('should add Pragma header to request', () => 
 const req = new Http();
 expect(req.request.headers.has('Pragma')).toBeTruthy();
 expect(req.request.headers.get('Pragma')).toEqual('no-cache');
 );

it('should add Cache-Control header to request', () => {
 const req = new Http();
 expect(req.request.headers.has('Cache-Control')).toBeTruthy();
 expect(req.request.headers.get('Cache-Control')).toEqual('no-cache');

angular typescript testing jasmine karma-runner

angular typescript testing jasmine karma-runner

share|improve this question

asked Mar 25 at 15:49

Arm144Arm144

4088 bronze badges

share|improve this question

asked Mar 25 at 15:49

Arm144Arm144

4088 bronze badges

asked Mar 25 at 15:49

Arm144Arm144

4088 bronze badges

asked Mar 25 at 15:49

Arm144Arm144

4088 bronze badges