46 lines
1.7 KiB
Swift
46 lines
1.7 KiB
Swift
// Copyright © 2014-2019 the Surge contributors
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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import Foundation
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import Surge
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import XCTest
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class AuxiliaryTests: XCTestCase {
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let n = 10_000
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func test_copysign() {
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let signs = Array((0..<n).map { $0 % 2 == 0 ? 1.0 : -1.0 })
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var magnitudes = [Double]()
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for _ in (0..<n).enumerated() {
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magnitudes.append(Double(arc4random_uniform(10)))
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}
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var expected: [Double] = []
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for (sign, magnitude) in zip(signs, magnitudes) {
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expected.append(sign * abs(magnitude))
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}
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let actual: [Double] = copysign(sign: signs, magnitude: magnitudes)
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XCTAssertEqual(actual, expected)
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}
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}
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