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//===----------------------------------------------------------------------===//
//
// This source file is part of the SwiftNIO open source project
//
// Copyright (c) 2017-2018 Apple Inc. and the SwiftNIO project authors
// Licensed under Apache License v2.0
//
// See LICENSE.txt for license information
// See CONTRIBUTORS.txt for the list of SwiftNIO project authors
//
// SPDX-License-Identifier: Apache-2.0
//
//===----------------------------------------------------------------------===//
import XCTest
@testable import _NIOBase64
class Base64Test: XCTestCase {
func testEncodeEmptyData() throws {
let data = [UInt8]()
let encodedData = String(base64Encoding: data)
XCTAssertEqual(encodedData.count, 0)
}
func testBase64EncodingOfEmptyString() throws {
let string = ""
let encoded = String(base64Encoding: string.utf8)
XCTAssertEqual(encoded, "")
}
func testBase64DecodingOfEmptyString() throws {
let encoded = ""
XCTAssertNoThrow {
let decoded = try encoded.base64Decoded()
XCTAssertEqual(decoded, [UInt8]())
}
}
func testBase64EncodingArrayOfNulls() throws {
let data = Array(repeating: UInt8(0), count: 10)
let encodedData = String(base64Encoding: data)
XCTAssertEqual(encodedData, "AAAAAAAAAAAAAA==")
}
func testBase64DecodeArrayOfNulls() throws {
let encoded = "AAAAAAAAAAAAAA=="
let decoded = try! encoded.base64Decoded()
let expected = Array(repeating: UInt8(0), count: 10)
XCTAssertEqual(decoded, expected)
}
func testBase64EncodeingHelloWorld() throws {
let string = "Hello, world!"
let encoded = String(base64Encoding: string.utf8)
let expected = "SGVsbG8sIHdvcmxkIQ=="
XCTAssertEqual(encoded, expected)
}
func testBase64DecodeHelloWorld() throws {
let encoded = "SGVsbG8sIHdvcmxkIQ=="
let decoded = try! encoded.base64Decoded()
XCTAssertEqual(decoded, "Hello, world!".utf8.map{ UInt8($0) })
}
func testBase64EncodingAllTheBytesSequentially() throws {
let data = Array(UInt8(0)...UInt8(255))
let encodedData = String(base64Encoding: data)
XCTAssertEqual(encodedData, "AAECAwQFBgcICQoLDA0ODxAREhMUFRYXGBkaGxwdHh8gISIjJCUmJygpKissLS4vMDEyMzQ1Njc4OTo7PD0+P0BBQkNERUZHSElKS0xNTk9QUVJTVFVWV1hZWltcXV5fYGFiY2RlZmdoaWprbG1ub3BxcnN0dXZ3eHl6e3x9fn+AgYKDhIWGh4iJiouMjY6PkJGSk5SVlpeYmZqbnJ2en6ChoqOkpaanqKmqq6ytrq+wsbKztLW2t7i5uru8vb6/wMHCw8TFxsfIycrLzM3Oz9DR0tPU1dbX2Nna29zd3t/g4eLj5OXm5+jp6uvs7e7v8PHy8/T19vf4+fr7/P3+/w==")
}
func testBase64DecodingWithInvalidLength() {
let encoded = "dGVzbA!=="
XCTAssertThrowsError(try encoded.base64Decoded()) { error in
XCTAssertEqual(error as? Base64Error, .invalidLength)
}
}
func testBase64DecodeWithInvalidCharacter() throws {
let encoded = "SGVsbG8sI_dvcmxkIQ=="
XCTAssertThrowsError(try encoded.base64Decoded()) { error in
XCTAssertEqual(error as? Base64Error, .invalidCharacter)
}
}
}
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