Kingfisher/Tests/KingfisherTests/ImageDrawingTests.swift

//
//  ImageDrawingTests.swift
//  Kingfisher
//
//  Created by onevcat on 2018/10/26.
//
//  Copyright (c) 2019 Wei Wang <onevcat@gmail.com>
//
//  Permission is hereby granted, free of charge, to any person obtaining a copy
//  of this software and associated documentation files (the "Software"), to deal
//  in the Software without restriction, including without limitation the rights
//  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
//  copies of the Software, and to permit persons to whom the Software is
//  furnished to do so, subject to the following conditions:
//
//  The above copyright notice and this permission notice shall be included in
//  all copies or substantial portions of the Software.
//
//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
//  THE SOFTWARE.

import XCTest
@testable import Kingfisher

class ImageDrawingTests: XCTestCase {

    func testImageResizing() {
        let result = testImage.kf.resize(to: CGSize(width: 20, height: 20))
        XCTAssertEqual(result.size, CGSize(width: 20, height: 20))
    }
    
    func testImageCropping() {
        let result = testImage.kf.crop(to: CGSize(width: 20, height: 20), anchorOn: .zero)
        XCTAssertEqual(result.size, CGSize(width: 20, height: 20))
    }
    
    func testImageScaling() {
        XCTAssertEqual(testImage.kf.scale, 1)
        let result = testImage.kf.scaled(to: 2.0)
        #if os(macOS)
        // No scale supported on macOS.
        XCTAssertEqual(result.kf.scale, 1)
        XCTAssertEqual(result.size.height, testImage.size.height)
        #else
        XCTAssertEqual(result.kf.scale, 2)
        XCTAssertEqual(result.size.height, testImage.size.height / 2)
        #endif
    }
}