add props to main button

my-workspace/projects/sae-lib/buttons/main-button/main-button.spec.ts

@@ -0,0 +1,23 @@
+import {ComponentFixture, TestBed} from '@angular/core/testing';
+import {MainButton} from './main-button';
+
+
+describe('MainButton', () => {
+  let component: MainButton;
+  let fixture: ComponentFixture<MainButton>;
+
+  beforeEach(async () => {
+    await TestBed.configureTestingModule({
+      imports: [MainButton]
+    })
+      .compileComponents();
+
+    fixture = TestBed.createComponent(MainButton);
+    component = fixture.componentInstance;
+    fixture.detectChanges();
+  });
+
+  it('should create', () => {
+    expect(component).toBeTruthy();
+  });
+});