import { waitForAsync, ComponentFixture, TestBed } from '@angular/core/testing';
import { SimplePaginationComponent } from './simple.pagination.component';
import { EventEmitter } from '@angular/core';

describe('SimplePaginationComponent', () => {
	let component: SimplePaginationComponent;
	let fixture: ComponentFixture<SimplePaginationComponent>;

	beforeEach(waitForAsync(() => {
		TestBed.configureTestingModule({
			declarations: [SimplePaginationComponent],
			imports: [],
		}).compileComponents();
	}));

	beforeEach(() => {
		fixture = TestBed.createComponent(SimplePaginationComponent);
		component = fixture.componentInstance;
		component.offset = 0;
		component.hasNextPage = true;
		component.paginationClicked = new EventEmitter();
		fixture.detectChanges();
	});

	it('should call onPagination', () => {
		component.paginationClicked.emit = jest.fn();
		component.onPagination({ type: 'next' });
		expect(component.paginationClicked.emit).toHaveBeenCalled();
	});

	it('should call nullAndUndefinedCheck', () => {
		const result1 = component.nullAndUndefinedCheck(0);
		const result2 = component.nullAndUndefinedCheck(true);
		const result3 = component.nullAndUndefinedCheck(null);
		const result4 = component.nullAndUndefinedCheck(undefined);
		expect(result1).toBeTruthy();
		expect(result2).toBeTruthy();
		expect(result3).toBeFalsy();
		expect(result4).toBeFalsy();
	});

	it('should create', () => {
		expect(component).toBeTruthy();
	});
});