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e-commerce-store's Issues

NullInjectorError with MatSnackBar in Angular Component.

Steps to Reproduce:
1. Clone the repository
2. Navigate to the project directory
3. Install dependencies: npm install
4. Run the tests: npm test

Expected Behavior:
Successful Testing

Actual Behavior:

Connected on socket 3BpPSBBaQ5lWCS9PAAAB with id 
11971178
Chrome 121.0.0.0 (Windows 10): ExecutChrome 121.0.0.0 (Windows 10) AppComponent should have as title 'ecommerce-store' FAILED
       NullInjectorError: R3InjectorError(DynamicTestModule)[CartService 
-> MatSnackBar -> MatSnackBar]:      
         NullInjectorError: No provider for MatSnackBar!
       error properties: Object({ ngTempTokenPath: null, ngTokenPath: [ 'CartService', 'MatSnackBar', 'MatSnackBar' ] })
       NullInjectorError: R3InjectorError(DynamicTestModule)[CartService 
-> MatSnackBar -> MatSnackBar]:      
         NullInjectorError: No provider for MatSnackBar!
           at NullInjector.get (node_modules/@angular/core/fesm2020/core.mjs:6367:27)
           at R3Injector.get (node_modules/@angular/core/fesm2020/core.mjs:6794:33)
           at R3Injector.get (node_modules/@angular/core/fesm2020/core.mjs:6794:33)
           at injectInjectorOnly (node_modules/@angular/core/fesm2020/core.mjs:4782:33)
           at ɵɵinject (node_modules/@angular/core/fesm2020/core.mjs:4786:12)
           at Object.factory (ng:///CartService/ɵfac.js:4:39)
           at R3Injector.hydrate (node_modules/@angular/core/fesm2020/core.mjs:6895:35)
           at R3Injector.get (node_modules/@angular/core/fesm2020/core.mjs:6783:33)
           at ChainedInjector.get (node_modules/@angular/core/fesm2020/core.mjs:13824:36)
           at lookupTokenUsingModuleInjector (node_modules/@angular/core/fesm2020/core.mjs:3293:39)
Chrome 121.0.0.0 (Windows 10): Executed 1 of 3 (1 FAILED) (0 secs / 0.089 
Chrome 121.0.0.0 (Windows 10) AppComponent should render title FAILED     
       NullInjectorError: R3InjectorError(DynamicTestModule)[CartService 
-> MatSnackBar -> MatSnackBar]:      
         NullInjectorError: No provider for MatSnackBar!
       error properties: Object({ ngTempTokenPath: null, ngTokenPath: [ 'CartService', 'MatSnackBar', 'MatSnackBar' ] })
       NullInjectorError: R3InjectorError(DynamicTestModule)[CartService 
-> MatSnackBar -> MatSnackBar]:      
         NullInjectorError: No provider for MatSnackBar!
           at NullInjector.get (node_modules/@angular/core/fesm2020/core.mjs:6367:27)
           at R3Injector.get (node_modules/@angular/core/fesm2020/core.mjs:6794:33)
           at R3Injector.get (node_modules/@angular/core/fesm2020/core.mjs:6794:33)
           at injectInjectorOnly (node_modules/@angular/core/fesm2020/core.mjs:4782:33)
           at ɵɵinject (node_modules/@angular/core/fesm2020/core.mjs:4786:12)
           at Object.factory (ng:///CartService/ɵfac.js:4:39)
           at R3Injector.hydrate (node_modules/@angular/core/fesm2020/core.mjs:6895:35)
           at R3Injector.get (node_modules/@angular/core/fesm2020/core.mjs:6783:33)
           at ChainedInjector.get (node_modules/@angular/core/fesm2020/core.mjs:13824:36)
           at lookupTokenUsingModuleInjector (node_modules/@angular/core/fesm2020/core.mjs:3293:39)
Chrome 121.0.0.0 (Windows 10): Executed 2 of 3 (2 FAILED) (0 secs / 0.099 
Chrome 121.0.0.0 (Windows 10) AppComponent should create the app FAILED   
       NullInjectorError: R3InjectorError(DynamicTestModule)[CartService 
-> MatSnackBar -> MatSnackBar]:      
         NullInjectorError: No provider for MatSnackBar!
       error properties: Object({ ngTempTokenPath: null, ngTokenPath: [ 'CartService', 'MatSnackBar', 'MatSnackBar' ] })
       NullInjectorError: R3InjectorError(DynamicTestModule)[CartService 
-> MatSnackBar -> MatSnackBar]:      
         NullInjectorError: No provider for MatSnackBar!
           at NullInjector.get (node_modules/@angular/core/fesm2020/core.mjs:6367:27)
           at R3Injector.get (node_modules/@angular/core/fesm2020/core.mjs:6794:33)
           at R3Injector.get (node_modules/@angular/core/fesm2020/core.mjs:6794:33)
           at injectInjectorOnly (node_modules/@angular/core/fesm2020/core.mjs:4782:33)
           at ɵɵinject (node_modules/@angular/core/fesm2020/core.mjs:4786:12)
           at Object.factory (ng:///CartService/ɵfac.js:4:39)
           at R3Injector.hydrate (node_modules/@angular/core/fesm2020/core.mjs:6895:35)
           at R3Injector.get (node_modules/@angular/core/fesm2020/core.mjs:6783:33)
           at ChainedInjector.get (node_modules/@angular/core/fesm2020/core.mjs:13824:36)
           at lookupTokenUsingModuleInjector (node_modules/@angular/core/fesm2020/core.mjs:3293:39)    
Chrome 121.0.0.0 (Windows 10): Executed 3 of 3 (3 FAILED) (0 secs / 0.107 Chrome 121.0.0.0 (Windows 10): Executed 3 of 3 (3 FAILED) (0.166 secs / 0.107 secs)
TOTAL: 3 FAILED, 0 SUCCESS

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