60 lines
1.8 KiB
Swift
60 lines
1.8 KiB
Swift
//
|
|
// View+UIImage.swift
|
|
// secantTests
|
|
//
|
|
// Created by Lukáš Korba on 10.06.2022.
|
|
//
|
|
|
|
import XCTest
|
|
import SwiftUI
|
|
|
|
extension XCTestCase {
|
|
func addAttachments<Content: View>(name: String = #function, _ view: Content) {
|
|
view.attachments(name).forEach { add($0) }
|
|
}
|
|
}
|
|
|
|
extension View {
|
|
func attachments(_ name: String) -> [XCTAttachment] {
|
|
[attachment(name)]
|
|
}
|
|
|
|
func attachment(_ fileName: String, _ colorScheme: ColorScheme = .light) -> XCTAttachment {
|
|
let colorSchemePostfix = colorScheme == .light ? "\(fileName)_light" : "\(fileName)_dark"
|
|
let trimTest = colorSchemePostfix.replacingOccurrences(of: "test", with: "")
|
|
let imageName = trimTest.replacingOccurrences(of: "()", with: "")
|
|
let rect = UIScreen.main.bounds
|
|
|
|
let viewHelper = self
|
|
.environment(\.colorScheme, colorScheme)
|
|
.frame(width: rect.width, height: rect.height, alignment: .center)
|
|
|
|
guard let image = viewHelper.asUiImage() else {
|
|
return XCTAttachment(string: "\(imageName)_SnapshotFailed")
|
|
}
|
|
|
|
let attachment = XCTAttachment(image: image)
|
|
attachment.name = imageName
|
|
attachment.lifetime = .keepAlways
|
|
return attachment
|
|
}
|
|
|
|
func asUiImage() -> UIImage? {
|
|
let controller = UIHostingController(rootView: self)
|
|
|
|
if let view = controller.view {
|
|
let contentSize = view.intrinsicContentSize
|
|
view.bounds = CGRect(origin: .zero, size: contentSize)
|
|
view.backgroundColor = .clear
|
|
|
|
let renderer = UIGraphicsImageRenderer(size: contentSize)
|
|
let uiImage = renderer.image { _ in
|
|
view.drawHierarchy(in: view.bounds, afterScreenUpdates: true)
|
|
}
|
|
return uiImage
|
|
}
|
|
|
|
return nil
|
|
}
|
|
}
|