101 lines
3.4 KiB
Swift
101 lines
3.4 KiB
Swift
//
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// AlgorithmsTests.swift
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// Terrain2Tests
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//
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// Created by Eryn Wells on 11/8/18.
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// Copyright © 2018 Eryn Wells. All rights reserved.
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//
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import XCTest
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@testable import Terrain2
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public typealias Box = DiamondSquareAlgorithm.Box
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public typealias Point = DiamondSquareAlgorithm.Box.Point
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public typealias Size = DiamondSquareAlgorithm.Box.Size
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class DiamondSquareBFSTests: XCTestCase {
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func testBFS() {
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let box = Box(origin: (x: 3, y: 4), size: (w: 5, h: 5))
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var expectedBoxes: [Box] = [
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box,
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Box(origin: (x: 3, y: 4), size: (w: 3, h: 3)),
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Box(origin: (x: 6, y: 4), size: (w: 3, h: 3)),
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Box(origin: (x: 3, y: 7), size: (w: 3, h: 3)),
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Box(origin: (x: 6, y: 7), size: (w: 3, h: 3)),
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Box(origin: (x: 3, y: 4), size: (w: 2, h: 2)),
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Box(origin: (x: 5, y: 4), size: (w: 2, h: 2)),
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Box(origin: (x: 3, y: 6), size: (w: 2, h: 2)),
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Box(origin: (x: 5, y: 6), size: (w: 2, h: 2)),
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Box(origin: (x: 6, y: 4), size: (w: 2, h: 2)),
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Box(origin: (x: 8, y: 4), size: (w: 2, h: 2)),
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Box(origin: (x: 6, y: 6), size: (w: 2, h: 2)),
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Box(origin: (x: 8, y: 6), size: (w: 2, h: 2)),
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Box(origin: (x: 3, y: 7), size: (w: 2, h: 2)),
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Box(origin: (x: 5, y: 7), size: (w: 2, h: 2)),
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Box(origin: (x: 3, y: 9), size: (w: 2, h: 2)),
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Box(origin: (x: 5, y: 9), size: (w: 2, h: 2)),
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Box(origin: (x: 6, y: 7), size: (w: 2, h: 2)),
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Box(origin: (x: 8, y: 7), size: (w: 2, h: 2)),
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Box(origin: (x: 6, y: 9), size: (w: 2, h: 2)),
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Box(origin: (x: 8, y: 9), size: (w: 2, h: 2)),
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].reversed()
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box.breadthFirstSearch { (box: Box) -> (Void) in
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let exBox = expectedBoxes.popLast()
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XCTAssertNotNil(exBox)
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XCTAssertEqual(box, exBox!)
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}
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XCTAssertEqual(expectedBoxes.count, 0)
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}
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}
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class DiamondSquareBoxTests: XCTestCase {
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func testNorthwest() {
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let box = Box(origin: (x: 3, y: 4), size: (w: 5, h: 5))
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let pt = box.northwest
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XCTAssertEqual(pt.x, 3)
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XCTAssertEqual(pt.y, 4)
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}
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func testNortheast() {
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let box = Box(origin: (x: 3, y: 4), size: (w: 5, h: 5))
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let pt = box.northeast
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XCTAssertEqual(pt.x, 8)
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XCTAssertEqual(pt.y, 4)
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}
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func testSouthwest() {
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let box = Box(origin: (x: 3, y: 4), size: (w: 5, h: 5))
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let pt = box.southwest
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XCTAssertEqual(pt.x, 3)
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XCTAssertEqual(pt.y, 9)
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}
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func testSoutheast() {
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let box = Box(origin: (x: 3, y: 4), size: (w: 5, h: 5))
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let pt = box.southeast
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XCTAssertEqual(pt.x, 8)
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XCTAssertEqual(pt.y, 9)
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}
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func testMidpoint() {
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let box = Box(origin: (x: 3, y: 4), size: (w: 5, h: 5))
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let midpoint = box.midpoint
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XCTAssertEqual(midpoint.x, 6)
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XCTAssertEqual(midpoint.y, 7)
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}
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func testSubdivision() {
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let box = Box(origin: (x: 3, y: 4), size: (w: 5, h: 5))
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let subdivs = box.subdivisions
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XCTAssertEqual(subdivs.count, 4)
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XCTAssertEqual(subdivs[0], Box(origin: (x: 3, y: 4), size: (w: 3, h: 3)))
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XCTAssertEqual(subdivs[1], Box(origin: (x: 6, y: 4), size: (w: 3, h: 3)))
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XCTAssertEqual(subdivs[2], Box(origin: (x: 3, y: 7), size: (w: 3, h: 3)))
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XCTAssertEqual(subdivs[3], Box(origin: (x: 6, y: 7), size: (w: 3, h: 3)))
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}
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}
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