test: test if current ASN is displayed

src-ui/src/app/components/dashboard/widgets/statistics-widget/statistics-widget.component.spec.ts

@@ -61,6 +61,13 @@ describe('StatisticsWidgetComponent', () => {
     expect(req.request.method).toEqual('GET')
   })
 
+  it('should call api next_asn endpoint', () => {
+    const req = httpTestingController.expectOne(
+      `${environment.apiBaseUrl}documents/next_asn/`
+    )
+    expect(req.request.method).toEqual('GET')
+  })
+
   it('should reload after doc is consumed', () => {
     const reloadSpy = jest.spyOn(component, 'reload')
     fileStatusSubject.next(new FileStatus())
@@ -189,4 +196,34 @@ describe('StatisticsWidgetComponent', () => {
       'Other(0.9%)'
     )
   })
+
+  it('should display the next ASN - 1', () => {
+    const mockNextASNResponse = 123
+
+    const req = httpTestingController.expectOne(
+      `${environment.apiBaseUrl}documents/next_asn/`
+    )
+
+    req.flush(mockNextASNResponse)
+    fixture.detectChanges()
+
+    expect(fixture.nativeElement.textContent.replace(/\s/g, '')).toContain(
+      'CurrentASN:122'
+    )
+  })
+
+  it('should not display the next ASN if it is not available', () => {
+    const mockNextASNResponse = 1
+
+    const req = httpTestingController.expectOne(
+      `${environment.apiBaseUrl}documents/next_asn/`
+    )
+
+    req.flush(mockNextASNResponse)
+    fixture.detectChanges()
+
+    expect(fixture.nativeElement.textContent.replace(/\s/g, '')).not.toContain(
+      'CurrentASN:'
+    )
+  })
 })