     }
 
     func testDoNotShowLoadingViewIfThereAreSomeSuperHeroes() {
-        givenThereAreSomeSuperHeroes()
+        _ = givenThereAreSomeSuperHeroes()
 
         openSuperHeroesViewController()
 

        openSuperHeroesViewController()

        for i in 0..<superHeroes.count {
            let superHeroCell = tester().waitForView(withAccessibilityLabel: superHeroes[i].name)
                as! SuperHeroTableViewCell
        }
    }

    func testDoNotShowEmptyCaseIfThereAreSuperHeroes() {
        givenThereAreSomeSuperHeroes()

        openSuperHeroesViewController()


    }

    fileprivate func givenThereAreNoSuperHeroes() {
        _ = givenThereAreSomeSuperHeroes(0)
    }

    fileprivate func givenThereAreSomeSuperHeroes(_ numberOfSuperHeroes: Int = 10,
