Tests the rendered counts rather than the props

ee/spec/javascripts/security_dashboard/components/vulnerability_count_list_spec.js

@@ -21,7 +21,10 @@ describe('Vulnerability Count List', () => {
   });
 
   it('should fetch the counts for each severity', () => {
-    expect(vm.counts[0]).toEqual({ severity: 'critical', count: mockData.critical });
+    const firstCount = vm.$el.querySelector('.js-count');
+
+    expect(firstCount.textContent).toContain('critical');
+    expect(firstCount.textContent).toContain(mockData.critical);
   });
 
   it('should render a counter for each severity', () => {