I'm currently facing an issue with unit testing a component that incorporates an ag-Grid. The problem lies in the fact that the onGridReady function is not being triggered, causing all tests related to ag-Grid to fail. Is there a way to ensure that onGridReady is executed before my tests are run?
Here's a snippet from the spec file:
describe('MyComponent', () => {
let spectator: SpectatorHost<MyComponent>;
let fixture: ComponentFixture<MyComponent>;
const createHost = createHostFactory({
// Component configuration details
});
beforeEach(() => {
// Setup for each test case
});
it('should create', () => {
// Test case implementation
});
it('should detect changes', () => {
// Test case implementation
});
The 'should create' test passes, but the 'should detect changes' test fails with the error message:
TypeError: Cannot read property 'setColumnDefs' of undefinedIn the HTML code, here's how my ag-Grid is defined:
<ag-grid-angular
// Ag-Grid configuration properties
(gridReady)="onGridReady($event)"
>
</ag-grid-angular>
And here's the corresponding onGridReady method:
onGridReady(params: any): void {
console.log('onGridReady called successfully');
if (this.agGrid1) {
this.agGrid1.api = params.api;
}
}
The console log never appears, indicating that the onGridReady function is not being invoked. How can I resolve this issue and ensure that onGridReady is triggered before the unit test runs?
Update: Although some have suggested providing data for columnDefs, I've already implemented initializeColumnDefs() which defines all columns. It has been verified that this function is indeed called during the unit test, ruling out that as the cause of the problem.
It should also be noted that this component is utilized within a MatDialog.