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QuadrilateralTests.swift
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//
// QuadrilateralTests.swift
// WeScanTests
//
// Created by Boris Emorine on 2/14/18.
// Copyright © 2018 WeTransfer. All rights reserved.
//
import XCTest
@testable import WeScan
final class QuadrilateralTests: XCTestCase {
func testEquatable() {
let topLeft = CGPoint(x: 0.0, y: 100.0)
let topRight = CGPoint(x: 100.0, y: 100.0)
let bottomRight = CGPoint(x: 100.0, y: 0.0)
let bottomLeft = CGPoint.zero
let quad1 = Quadrilateral(topLeft: topLeft, topRight: topRight, bottomRight: bottomRight, bottomLeft: bottomLeft)
var quad2 = Quadrilateral(topLeft: topLeft, topRight: topRight, bottomRight: bottomRight, bottomLeft: bottomLeft)
XCTAssertTrue(quad1 == quad2)
quad2 = Quadrilateral(topLeft: topLeft, topRight: topLeft, bottomRight: bottomRight, bottomLeft: bottomLeft)
XCTAssertFalse(quad1 == quad2)
}
func testSquale() {
var topLeft = CGPoint.zero
var topRight = CGPoint(x: 100.0, y: 0.0)
var bottomRight = CGPoint(x: 100.0, y: 100.0)
var bottomLeft = CGPoint(x: 0.0, y: 100.0)
var quad = Quadrilateral(topLeft: topLeft, topRight: topRight, bottomRight: bottomRight, bottomLeft: bottomLeft)
var fromImageSize = CGSize(width: 500.0, height: 500.0)
var toImageSize = CGSize(width: 1000.0, height: 1000.0)
var scaledQuad = quad.scale(fromImageSize, toImageSize)
XCTAssert(scaledQuad.topLeft == .zero)
XCTAssert(scaledQuad.topRight == CGPoint(x: 200.0, y: 0.0))
XCTAssert(scaledQuad.bottomRight == CGPoint(x: 200.0, y: 200.0))
XCTAssert(scaledQuad.bottomLeft == CGPoint(x: 0.0, y: 200.0))
topLeft = CGPoint(x: 50.0, y: 75.0)
topRight = CGPoint(x: 100.0, y: 25.0)
bottomRight = CGPoint(x: 75.0, y: 100.0)
bottomLeft = CGPoint(x: 25.0, y: 200.0)
quad = Quadrilateral(topLeft: topLeft, topRight: topRight, bottomRight: bottomRight, bottomLeft: bottomLeft)
scaledQuad = quad.scale(fromImageSize, toImageSize)
XCTAssert(scaledQuad.topLeft == CGPoint(x: 100.0, y: 150.0))
XCTAssert(scaledQuad.topRight == CGPoint(x: 200.0, y: 50.0))
XCTAssert(scaledQuad.bottomRight == CGPoint(x: 150.0, y: 200.0))
XCTAssert(scaledQuad.bottomLeft == CGPoint(x: 50.0, y: 400.0))
fromImageSize = CGSize(width: 500.0, height: 500.0)
toImageSize = CGSize(width: 250.0, height: 250.0)
scaledQuad = quad.scale(fromImageSize, toImageSize)
XCTAssert(scaledQuad.topLeft == CGPoint(x: 25.0, y: 37.5))
XCTAssert(scaledQuad.topRight == CGPoint(x: 50.0, y: 12.5))
XCTAssert(scaledQuad.bottomRight == CGPoint(x: 37.5, y: 50.0))
XCTAssert(scaledQuad.bottomLeft == CGPoint(x: 12.5, y: 100.0))
}
func testScaleFixRotation() {
var topLeft = CGPoint.zero
var topRight = CGPoint(x: 500.0, y: 0.0)
var bottomRight = CGPoint(x: 500.0, y: 500.0)
var bottomLeft = CGPoint(x: 0.0, y: 500.0)
var quad = Quadrilateral(topLeft: topLeft, topRight: topRight, bottomRight: bottomRight, bottomLeft: bottomLeft)
var fromImageSize = CGSize(width: 500.0, height: 500.0)
var toImageSize = CGSize(width: 500.0, height: 500.0)
var scaledQuad = quad.scale(fromImageSize, toImageSize, withRotationAngle: CGFloat.pi / 2.0)
XCTAssertTrue(scaledQuad.topLeft.isWithin(delta: 0.01, ofPoint: CGPoint(x: 500.0, y: 0.0)))
XCTAssertTrue(scaledQuad.topRight.isWithin(delta: 0.01, ofPoint: CGPoint(x: 500.0, y: 500.0)))
XCTAssertTrue(scaledQuad.bottomRight.isWithin(delta: 0.01, ofPoint: CGPoint(x: 0.0, y: 500.0)))
XCTAssertTrue(scaledQuad.bottomLeft.isWithin(delta: 0.01, ofPoint: .zero))
topLeft = CGPoint(x: 0.0, y: 500.0)
topRight = CGPoint(x: 1000.0, y: 500.0)
bottomRight = CGPoint(x: 1000.0, y: 0.0)
bottomLeft = .zero
quad = Quadrilateral(topLeft: topLeft, topRight: topRight, bottomRight: bottomRight, bottomLeft: bottomLeft)
fromImageSize = CGSize(width: 1000.0, height: 500.0)
toImageSize = CGSize(width: 500.0, height: 1000.0)
scaledQuad = quad.scale(fromImageSize, toImageSize, withRotationAngle: CGFloat.pi / 2.0)
XCTAssertTrue(scaledQuad.topLeft.isWithin(delta: 0.01, ofPoint: .zero))
XCTAssertTrue(scaledQuad.topRight.isWithin(delta: 0.01, ofPoint: CGPoint(x: 0.0, y: 1000.0)))
XCTAssertTrue(scaledQuad.bottomRight.isWithin(delta: 0.01, ofPoint: CGPoint(x: 500.0, y: 1000.0)))
XCTAssertTrue(scaledQuad.bottomLeft.isWithin(delta: 0.01, ofPoint: CGPoint(x: 500.0, y: 0.0)))
topLeft = CGPoint(x: 0.0, y: 500.0)
topRight = CGPoint(x: 1000.0, y: 500.0)
bottomRight = CGPoint(x: 1000.0, y: 0.0)
bottomLeft = .zero
quad = Quadrilateral(topLeft: topLeft, topRight: topRight, bottomRight: bottomRight, bottomLeft: bottomLeft)
fromImageSize = CGSize(width: 1000.0, height: 500.0)
toImageSize = CGSize(width: 250.0, height: 500.0)
scaledQuad = quad.scale(fromImageSize, toImageSize, withRotationAngle: CGFloat.pi / 2.0)
XCTAssertTrue(scaledQuad.topLeft.isWithin(delta: 0.01, ofPoint: .zero))
XCTAssertTrue(scaledQuad.topRight.isWithin(delta: 0.01, ofPoint: CGPoint(x: 0.0, y: 500.0)))
XCTAssertTrue(scaledQuad.bottomRight.isWithin(delta: 0.01, ofPoint: CGPoint(x: 250.0, y: 500.0)))
XCTAssertTrue(scaledQuad.bottomLeft.isWithin(delta: 0.01, ofPoint: CGPoint(x: 250.0, y: 0.0)))
topLeft = CGPoint(x: 250.0, y: 500.0)
topRight = CGPoint(x: 500.0, y: 500.0)
bottomRight = CGPoint(x: 500.0, y: 250.0)
bottomLeft = CGPoint(x: 250.0, y: 250.0)
quad = Quadrilateral(topLeft: topLeft, topRight: topRight, bottomRight: bottomRight, bottomLeft: bottomLeft)
fromImageSize = CGSize(width: 750.0, height: 750.0)
toImageSize = CGSize(width: 750.0, height: 750.0)
scaledQuad = quad.scale(fromImageSize, toImageSize, withRotationAngle: CGFloat.pi / 2.0)
XCTAssertTrue(scaledQuad.topLeft.isWithin(delta: 0.01, ofPoint: CGPoint(x: 250.0, y: 250.0)))
XCTAssertTrue(scaledQuad.topRight.isWithin(delta: 0.01, ofPoint: CGPoint(x: 250.0, y: 500.0)))
XCTAssertTrue(scaledQuad.bottomRight.isWithin(delta: 0.01, ofPoint: CGPoint(x: 500.0, y: 500.0)))
XCTAssertTrue(scaledQuad.bottomLeft.isWithin(delta: 0.01, ofPoint: CGPoint(x: 500.0, y: 250.0)))
topLeft = CGPoint(x: 250.0, y: 500.0)
topRight = CGPoint(x: 750.0, y: 500.0)
bottomRight = CGPoint(x: 750.0, y: 250.0)
bottomLeft = CGPoint(x: 250.0, y: 250.0)
quad = Quadrilateral(topLeft: topLeft, topRight: topRight, bottomRight: bottomRight, bottomLeft: bottomLeft)
fromImageSize = CGSize(width: 1000.0, height: 750.0)
toImageSize = CGSize(width: 1500.0, height: 2000.0)
scaledQuad = quad.scale(fromImageSize, toImageSize, withRotationAngle: CGFloat.pi / 2.0)
XCTAssertTrue(scaledQuad.topLeft.isWithin(delta: 0.01, ofPoint: CGPoint(x: 500.0, y: 500.0)))
XCTAssertTrue(scaledQuad.topRight.isWithin(delta: 0.01, ofPoint: CGPoint(x: 500.0, y: 1500.0)))
XCTAssertTrue(scaledQuad.bottomRight.isWithin(delta: 0.01, ofPoint: CGPoint(x: 1000.0, y: 1500.0)))
XCTAssertTrue(scaledQuad.bottomLeft.isWithin(delta: 0.01, ofPoint: CGPoint(x: 1000.0, y: 500.0)))
topLeft = CGPoint(x: 100.0, y: 400.0)
topRight = CGPoint(x: 200.0, y: 400.0)
bottomRight = CGPoint(x: 200.0, y: 300.0)
bottomLeft = CGPoint(x: 100.0, y: 300.0)
quad = Quadrilateral(topLeft: topLeft, topRight: topRight, bottomRight: bottomRight, bottomLeft: bottomLeft)
fromImageSize = CGSize(width: 1000.0, height: 500.0)
toImageSize = CGSize(width: 1000.0, height: 2000.0)
scaledQuad = quad.scale(fromImageSize, toImageSize, withRotationAngle: CGFloat.pi / 2.0)
XCTAssertTrue(scaledQuad.topLeft.isWithin(delta: 0.01, ofPoint: CGPoint(x: 200.0, y: 200.0)))
XCTAssertTrue(scaledQuad.topRight.isWithin(delta: 0.01, ofPoint: CGPoint(x: 200.0, y: 400.0)))
XCTAssertTrue(scaledQuad.bottomRight.isWithin(delta: 0.01, ofPoint: CGPoint(x: 400.0, y: 400.0)))
XCTAssertTrue(scaledQuad.bottomLeft.isWithin(delta: 0.01, ofPoint: CGPoint(x: 400.0, y: 200.0)))
}
func testReorganize() {
var topLeft = CGPoint.zero
var topRight = CGPoint(x: 100.0, y: 0.0)
var bottomRight = CGPoint(x: 100.0, y: 100.0)
var bottomLeft = CGPoint(x: 0.0, y: 100.0)
var quad = Quadrilateral(topLeft: topLeft, topRight: topRight, bottomRight: bottomRight, bottomLeft: bottomLeft)
quad.reorganize()
var expectedQuad = Quadrilateral(topLeft: topLeft, topRight: topRight, bottomRight: bottomRight, bottomLeft: bottomLeft)
XCTAssertTrue(quad == expectedQuad)
quad = Quadrilateral(topLeft: bottomRight, topRight: bottomLeft, bottomRight: topLeft, bottomLeft: topRight)
quad.reorganize()
expectedQuad = Quadrilateral(topLeft: topLeft, topRight: topRight, bottomRight: bottomRight, bottomLeft: bottomLeft)
XCTAssertTrue(quad == expectedQuad)
topLeft = CGPoint(x: 0.0, y: 50.0)
topRight = CGPoint(x: 70.0, y: 00.0)
bottomRight = CGPoint(x: 100.0, y: 70.0)
bottomLeft = CGPoint(x: 20.0, y: 100.0)
quad = Quadrilateral(topLeft: topLeft, topRight: topRight, bottomRight: bottomRight, bottomLeft: bottomLeft)
quad.reorganize()
expectedQuad = Quadrilateral(topLeft: topLeft, topRight: topRight, bottomRight: bottomRight, bottomLeft: bottomLeft)
XCTAssertTrue(quad == expectedQuad)
quad = Quadrilateral(topLeft: topRight, topRight: topLeft, bottomRight: bottomLeft, bottomLeft: bottomRight)
quad.reorganize()
expectedQuad = Quadrilateral(topLeft: topLeft, topRight: topRight, bottomRight: bottomRight, bottomLeft: bottomLeft)
XCTAssertTrue(quad == expectedQuad)
}
}