IndicatorTests.swift

import XCTest
import SwiftUI
import ViewInspector
@testable import SDWebImageSwiftUI

extension ActivityIndicator : Inspectable {}
extension ProgressIndicator : Inspectable {}

#if os(iOS) || os(tvOS)
typealias ActivityIndicatorViewType = UIActivityIndicatorView
typealias ProgressIndicatorViewType = UIProgressView
#else
typealias ActivityIndicatorViewType = NSProgressIndicator
typealias ProgressIndicatorViewType = NSProgressIndicator
#endif

class IndicatorTests: XCTestCase {
    
    override func setUp() {
        super.setUp()
        // Put setup code here. This method is called before the invocation of each test method in the class.
    }
    
    override func tearDown() {
        // Put teardown code here. This method is called after the invocation of each test method in the class.
        super.tearDown()
        SDImageCache.shared.clear(with: .all)
    }
    
    func testActivityIndicator() throws {
        let expectation = self.expectation(description: "Activity indicator")
        let binding = Binding<Bool>(wrappedValue: true)
        let indicator = ActivityIndicator(binding, style: .medium)
        ViewHosting.host(view: indicator)
        let indicatorView = try indicator.inspect().actualView().platformView()
        #if os(iOS) || os(tvOS)
        XCTAssertTrue(indicatorView.isAnimating)
        #endif
        binding.wrappedValue = false
        XCTAssertFalse(binding.wrappedValue)
        XCTAssertFalse(indicator.isAnimating)
        #if os(iOS) || os(tvOS)
        indicatorView.stopAnimating()
        #else
        indicatorView.stopAnimation(nil)
        #endif
        #if os(iOS) || os(tvOS)
        XCTAssertFalse(indicatorView.isAnimating)
        #endif
        expectation.fulfill()
        self.waitForExpectations(timeout: 5, handler: nil)
        ViewHosting.expel()
    }
    
    func testProgressIndicator() throws {
        let expectation = self.expectation(description: "Progress indicator")
        let binding = Binding<Bool>(wrappedValue: true)
        let progress = Binding<Double>(wrappedValue: 0)
        let indicator = ProgressIndicator(binding, progress: progress)
        ViewHosting.host(view: indicator)
        let indicatorView = try indicator.inspect().actualView().platformView().wrapped
        #if os(iOS) || os(tvOS)
        XCTAssertEqual(indicatorView.progress, 0.0)
        #else
        XCTAssertEqual(indicatorView.doubleValue, 0.0)
        #endif
        progress.wrappedValue = 1.0
        XCTAssertEqual(indicator.progress, 1.0)
        #if os(iOS) || os(tvOS)
        indicatorView.setProgress(1.0, animated: true)
        #else
        indicatorView.increment(by: 1.0)
        #endif
        #if os(iOS) || os(tvOS)
        XCTAssertEqual(indicatorView.progress, 1.0)
        #else
        XCTAssertEqual(indicatorView.doubleValue, 1.0)
        #endif
        expectation.fulfill()
        self.waitForExpectations(timeout: 5, handler: nil)
        ViewHosting.expel()
    }
    
}