Angular + Redux Jasmine testing “Cannot read property 'dispatch' of undefined” randomly thrown in runs
I have an integration test that is dependant on 2 services which I am providing to the testbed with stubs.
When I am testing a function updateCategory() in the subscribe block of this category I have a function ngRedux.dispatch({type: something})
The error: TypeError: Cannot read property 'dispatch' of undefined gets randomly thrown out even though the service is stubbed and the function is provided. For some odd reason it thinks it's a property of the service.
This error gets thrown, without making any changes whatsoever to the test, just refreshing the karma page:
- At a random test each time.
- Sometimes all test pass with the error only in the console.
- Sometimes it stops trying other tests after throwing the error.
- Sometimes it throws the error with all tests passing.
It's so unpredictable it just makes no sense to me at all.
TestBed Configuration:
describe('AdminCategoriesComponent', () => {
let component: AdminCategoriesComponent;
let fixture: ComponentFixture<AdminCategoriesComponent>;
beforeEach(async(() => {
TestBed.configureTestingModule({
imports: [
MatSnackBarModule,
ReactiveFormsModule,
FormsModule,
MatInputModule,
MatExpansionModule,
BrowserAnimationsModule,
NgReduxTestingModule
],
declarations: [AdminCategoriesComponent],
providers: [
{ provide: AdminService, useClass: AdminStub },
{ provide: NgRedux, useclass: MockNgRedux }
],
schemas: [NO_ERRORS_SCHEMA]
})
.compileComponents()
.then(() => {
MockNgRedux.reset();
fixture = TestBed.createComponent(AdminCategoriesComponent);
component = fixture.componentInstance;
fixture.detectChanges();
});
}));
Test configuration:
it('should update category', () => {
component.categoryID = 1;
component.categoryTitle = 'Test Category Title';
component.categoryDescription = 'Test Category Description';
component.ngOnInit();
fixture.detectChanges();
component.categoryForm.value.categoryTitle = 'New Category Title';
component.categoryForm.value.categoryDescription =
'New Category Description';
component.updateCategory();
fixture.detectChanges();
expect(component.localLoading).toBeFalsy();
});
Without the test above -- the error does not get thrown. And without the dispatch function in that subscribe block, the error doesn't get thrown either.
angular jasmine angular-redux angular-testing ngredux
asked Nov 20 at 14:56
SebastianG
757115
add a comment |
I have an integration test that is dependant on 2 services which I am providing to the testbed with stubs.
When I am testing a function updateCategory() in the subscribe block of this category I have a function ngRedux.dispatch({type: something})
The error: TypeError: Cannot read property 'dispatch' of undefined gets randomly thrown out even though the service is stubbed and the function is provided. For some odd reason it thinks it's a property of the service.
This error gets thrown, without making any changes whatsoever to the test, just refreshing the karma page:
- At a random test each time.
- Sometimes all test pass with the error only in the console.
- Sometimes it stops trying other tests after throwing the error.
- Sometimes it throws the error with all tests passing.
It's so unpredictable it just makes no sense to me at all.
TestBed Configuration:
describe('AdminCategoriesComponent', () => {
let component: AdminCategoriesComponent;
let fixture: ComponentFixture<AdminCategoriesComponent>;
beforeEach(async(() => {
TestBed.configureTestingModule({
imports: [
MatSnackBarModule,
ReactiveFormsModule,
FormsModule,
MatInputModule,
MatExpansionModule,
BrowserAnimationsModule,
NgReduxTestingModule
],
declarations: [AdminCategoriesComponent],
providers: [
{ provide: AdminService, useClass: AdminStub },
{ provide: NgRedux, useclass: MockNgRedux }
],
schemas: [NO_ERRORS_SCHEMA]
})
.compileComponents()
.then(() => {
MockNgRedux.reset();
fixture = TestBed.createComponent(AdminCategoriesComponent);
component = fixture.componentInstance;
fixture.detectChanges();
});
}));
Test configuration:
it('should update category', () => {
component.categoryID = 1;
component.categoryTitle = 'Test Category Title';
component.categoryDescription = 'Test Category Description';
component.ngOnInit();
fixture.detectChanges();
component.categoryForm.value.categoryTitle = 'New Category Title';
component.categoryForm.value.categoryDescription =
'New Category Description';
component.updateCategory();
fixture.detectChanges();
expect(component.localLoading).toBeFalsy();
});
Without the test above -- the error does not get thrown. And without the dispatch function in that subscribe block, the error doesn't get thrown either.
angular jasmine angular-redux angular-testing ngredux
asked Nov 20 at 14:56
SebastianG
757115
Can you show your MockNgRedux definition please?
– dmcgrandle
Nov 21 at 7:09
add a comment |
I have an integration test that is dependant on 2 services which I am providing to the testbed with stubs.
When I am testing a function updateCategory() in the subscribe block of this category I have a function ngRedux.dispatch({type: something})
The error: TypeError: Cannot read property 'dispatch' of undefined gets randomly thrown out even though the service is stubbed and the function is provided. For some odd reason it thinks it's a property of the service.
This error gets thrown, without making any changes whatsoever to the test, just refreshing the karma page:
- At a random test each time.
- Sometimes all test pass with the error only in the console.
- Sometimes it stops trying other tests after throwing the error.
- Sometimes it throws the error with all tests passing.
It's so unpredictable it just makes no sense to me at all.
TestBed Configuration:
describe('AdminCategoriesComponent', () => {
let component: AdminCategoriesComponent;
let fixture: ComponentFixture<AdminCategoriesComponent>;
beforeEach(async(() => {
TestBed.configureTestingModule({
imports: [
MatSnackBarModule,
ReactiveFormsModule,
FormsModule,
MatInputModule,
MatExpansionModule,
BrowserAnimationsModule,
NgReduxTestingModule
],
declarations: [AdminCategoriesComponent],
providers: [
{ provide: AdminService, useClass: AdminStub },
{ provide: NgRedux, useclass: MockNgRedux }
],
schemas: [NO_ERRORS_SCHEMA]
})
.compileComponents()
.then(() => {
MockNgRedux.reset();
fixture = TestBed.createComponent(AdminCategoriesComponent);
component = fixture.componentInstance;
fixture.detectChanges();
});
}));
Test configuration:
it('should update category', () => {
component.categoryID = 1;
component.categoryTitle = 'Test Category Title';
component.categoryDescription = 'Test Category Description';
component.ngOnInit();
fixture.detectChanges();
component.categoryForm.value.categoryTitle = 'New Category Title';
component.categoryForm.value.categoryDescription =
'New Category Description';
component.updateCategory();
fixture.detectChanges();
expect(component.localLoading).toBeFalsy();
});
Without the test above -- the error does not get thrown. And without the dispatch function in that subscribe block, the error doesn't get thrown either.
angular jasmine angular-redux angular-testing ngredux
asked Nov 20 at 14:56
SebastianG
757115
I have an integration test that is dependant on 2 services which I am providing to the testbed with stubs.
When I am testing a function updateCategory() in the subscribe block of this category I have a function ngRedux.dispatch({type: something})
The error: TypeError: Cannot read property 'dispatch' of undefined gets randomly thrown out even though the service is stubbed and the function is provided. For some odd reason it thinks it's a property of the service.
This error gets thrown, without making any changes whatsoever to the test, just refreshing the karma page:
- At a random test each time.
- Sometimes all test pass with the error only in the console.
- Sometimes it stops trying other tests after throwing the error.
- Sometimes it throws the error with all tests passing.
It's so unpredictable it just makes no sense to me at all.
TestBed Configuration:
describe('AdminCategoriesComponent', () => {
let component: AdminCategoriesComponent;
let fixture: ComponentFixture<AdminCategoriesComponent>;
beforeEach(async(() => {
TestBed.configureTestingModule({
imports: [
MatSnackBarModule,
ReactiveFormsModule,
FormsModule,
MatInputModule,
MatExpansionModule,
BrowserAnimationsModule,
NgReduxTestingModule
],
declarations: [AdminCategoriesComponent],
providers: [
{ provide: AdminService, useClass: AdminStub },
{ provide: NgRedux, useclass: MockNgRedux }
],
schemas: [NO_ERRORS_SCHEMA]
})
.compileComponents()
.then(() => {
MockNgRedux.reset();
fixture = TestBed.createComponent(AdminCategoriesComponent);
component = fixture.componentInstance;
fixture.detectChanges();
});
}));
Test configuration:
it('should update category', () => {
component.categoryID = 1;
component.categoryTitle = 'Test Category Title';
component.categoryDescription = 'Test Category Description';
component.ngOnInit();
fixture.detectChanges();
component.categoryForm.value.categoryTitle = 'New Category Title';
component.categoryForm.value.categoryDescription =
'New Category Description';
component.updateCategory();
fixture.detectChanges();
expect(component.localLoading).toBeFalsy();
});
Without the test above -- the error does not get thrown. And without the dispatch function in that subscribe block, the error doesn't get thrown either.
angular jasmine angular-redux angular-testing ngredux
angular jasmine angular-redux angular-testing ngredux
asked Nov 20 at 14:56
SebastianG
757115
asked Nov 20 at 14:56
SebastianG
757115
asked Nov 20 at 14:56
SebastianG
757115
asked Nov 20 at 14:56
SebastianG
757115
asked Nov 20 at 14:56
SebastianG
757115
757115
Can you show your MockNgRedux definition please?
– dmcgrandle
Nov 21 at 7:09
add a comment |
Can you show your MockNgRedux definition please?
– dmcgrandle
Nov 21 at 7:09
Can you show your MockNgRedux definition please?
– dmcgrandle
Nov 21 at 7:09
Can you show your MockNgRedux definition please?
– dmcgrandle
Nov 21 at 7:09
add a comment |
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Can you show your MockNgRedux definition please?
– dmcgrandle
Nov 21 at 7:09