feat(unit-test): add test for action tomastrajan#177

src/app/shared/big-input/big-input-action.component.spec.ts

@@ -1,5 +1,5 @@
 import { async, ComponentFixture, TestBed } from '@angular/core/testing';
-
+import { By } from '@angular/platform-browser';
 import { SharedModule } from '@app/shared';
 
 import { Component } from '@angular/core';
@@ -11,6 +11,7 @@ import { Component } from '@angular/core';
      color="warn"
      [icon]="icon"
      [label]="label"
+     (action)="actionHandler()"
     [disabled]="disabled"
     >
     </anms-big-input-action>
@@ -20,6 +21,7 @@ class HostComponent {
   disabled;
   icon;
   label;
+  actionHandler;
 }
 describe('BigInputActionComponent', () => {
   let component: HostComponent;
@@ -80,4 +82,13 @@ describe('BigInputActionComponent', () => {
     expect(label).toBeTruthy();
     expect(label.textContent).toBe('delete');
   });
+
+  it('should trigger action bound when button clicked', () => {
+    const button = fixture.debugElement.query(By.css('button'));
+    component.actionHandler = () => {};
+    fixture.detectChanges();
+    spyOn(component, 'actionHandler').and.callThrough();
+    button.triggerEventHandler('click', <Event>{});
+    expect(component.actionHandler).toHaveBeenCalled();
+  });
 });