Sample iOS Unit Tests: Working with a ViewController composed of Custom Views

Sample iOS Unit Tests: Working with a ViewController composed of Custom Views

    func testControllerCanPresentSchoolDataWithCustomSchoolView() {
        
        // get target CustomView
        let subviews = self.viewControllerUnderTest.scrollView.subviews
        var schoolViews = [SchoolView]()
        for currentView in subviews {
            if(currentView.isKindOfClass(SchoolView)) {
                schoolViews.append(currentView as! SchoolView)
            }
        }
        
        // number of schools
        let expectedNumberOfSchoolViews = 1
        let actualNumberOfSchoolViews = schoolViews.count
        XCTAssertEqual(expectedNumberOfSchoolViews, actualNumberOfSchoolViews)
        
        let schoolModel = self.model.schools 
        let schoolView = schoolViews.first
        
        // confirm proper presentation of name in custom SchoolView
        let expectedModelName = schoolModel.name
        let actualViewName = schoolView?.schoolName
        XCTAssertEqual(expectedModelName, actualViewName)
        
        // confirm proper presentation of level in custom SchoolView
        let expectedModelLevel = schoolModel.level
        let actualViewLevel = schoolView?.schoolLevel
        XCTAssertEqual(expectedModelLevel, actualViewLevel)
        
        // confirm proper presentation of district in custom SchoolView
        let expectedModelDistrict = schoolModel.district
        let actualViewDistrict = schoolView?.district
        XCTAssertEqual(expectedModelDistrict, actualViewDistrict)
        
        // confirm proper presentation of location in custom SchoolView
        let expectedModelLocation = schoolModel.location
        let actualViewLocation = schoolView?.location
        XCTAssertEqual(expectedModelLocation, actualViewLocation)
        
        // confirm proper presentation of rating in custom SchoolView
        let expectedModelRating = String(schoolModel.rating)
        let actualViewRating = schoolView?.ratingTitle
        XCTAssertEqual(expectedModelRating, actualViewRating)
        
    }