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ASN1Tests.swift
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//
// ASN1Tests.swift
// PotentCodables
//
// Copyright © 2021 Outfox, inc.
//
//
// Distributed under the MIT License, See LICENSE for details.
//
import Foundation
@testable import PotentASN1
import PotentCodables
import XCTest
class ASN1Tests: XCTestCase {
func testObjectIdentifierLiterals() {
XCTAssertEqual(
[1, 2, 3, 4] as ObjectIdentifier,
ObjectIdentifier([1, 2, 3, 4])
)
XCTAssertEqual(
"1.2.3.4" as ObjectIdentifier,
ObjectIdentifier([1, 2, 3, 4])
)
}
func testSerializationArrayCombined() throws {
XCTAssertEqual(
try ASN1Serialization.der(from: [.integer(1), .boolean(true)]),
Data(hexEncoded: "0201010101ff")
)
}
func testExplicitSchema() throws {
struct TestStruct: Codable, Equatable {
let a: Int
let b: String
let c: [Bool]
}
let TestStructSchema: Schema =
.sequence([
"a": .integer(),
"b": .string(kind: .utf8),
"c": .setOf(.boolean()),
])
let src = TestStruct(a: 5, b: "BBB", c: [false, true, false])
let srcData = try ASN1Encoder(schema: TestStructSchema).encode(src)
let dst = try ASN1Decoder(schema: TestStructSchema).decode(TestStruct.self, from: srcData)
XCTAssertEqual(src, dst)
}
func testDecodeASN1Null() throws {
struct TestStruct: Codable, Equatable {
let a: String
let b: ASN1
}
let TestStructSchema: Schema =
.sequence([
"a": .string(kind: .utf8),
"b": .choiceOf([.integer(), .null]),
])
let src = TestStruct(a: "test", b: .null)
let srcData = try ASN1Encoder(schema: TestStructSchema).encode(src)
let dst = try ASN1Decoder(schema: TestStructSchema).decode(TestStruct.self, from: srcData)
XCTAssertEqual(src, dst)
}
func testGeneralizedTimeEncodingDecoding() throws {
struct TestStruct: Codable, Equatable {
let a: AnyTime
let b: AnyTime
}
let TestStructSchema: Schema =
.sequence([
"a": .time(kind: .generalized),
"b": .time(kind: .generalized),
])
let src = TestStruct(
a: AnyTime(date: Date().truncatedToSecs, timeZone: .utc, kind: .generalized),
b: AnyTime(date: Date().truncatedToSecs, timeZone: .timeZone(from: "+1122")!, kind: .generalized)
)
let srcData = try ASN1Encoder(schema: TestStructSchema).encode(src)
let dst = try ASN1Decoder(schema: TestStructSchema).decode(TestStruct.self, from: srcData)
XCTAssertEqual(src, dst)
}
func testGeneralizedTimeReadingWriting() throws {
let data = try ASN1DERWriter.write([
ASN1.tagged(24, "22221111223344".data(using: .ascii)!),
ASN1.tagged(24, "22221111223344.567".data(using: .ascii)!),
ASN1.tagged(24, "22221111223344Z".data(using: .ascii)!),
ASN1.tagged(24, "22221111223344.567Z".data(using: .ascii)!),
ASN1.tagged(24, "22221111223344+11:22:33".data(using: .ascii)!),
ASN1.tagged(24, "22221111223344.567+11:22:33".data(using: .ascii)!),
ASN1.tagged(24, "22221111223344+112233".data(using: .ascii)!),
ASN1.tagged(24, "22221111223344.567+112233".data(using: .ascii)!),
ASN1.tagged(24, "22221111223344+11:22".data(using: .ascii)!),
ASN1.tagged(24, "22221111223344.567+11:22".data(using: .ascii)!),
ASN1.tagged(24, "22221111223344+1122".data(using: .ascii)!),
ASN1.tagged(24, "22221111223344.567+1122".data(using: .ascii)!),
ASN1.tagged(24, "22221111223344+11".data(using: .ascii)!),
ASN1.tagged(24, "22221111223344.567+11".data(using: .ascii)!),
ASN1.tagged(24, "22221111223344-11:22:33".data(using: .ascii)!),
ASN1.tagged(24, "22221111223344.567-11:22:33".data(using: .ascii)!),
ASN1.tagged(24, "22221111223344-112233".data(using: .ascii)!),
ASN1.tagged(24, "22221111223344.567-112233".data(using: .ascii)!),
ASN1.tagged(24, "22221111223344-11:22".data(using: .ascii)!),
ASN1.tagged(24, "22221111223344.567-11:22".data(using: .ascii)!),
ASN1.tagged(24, "22221111223344-1122".data(using: .ascii)!),
ASN1.tagged(24, "22221111223344.567-1122".data(using: .ascii)!),
ASN1.tagged(24, "22221111223344-11".data(using: .ascii)!),
ASN1.tagged(24, "22221111223344.567-11".data(using: .ascii)!),
])
let values = try ASN1DERReader.parse(data: data)
func date(_ index: Int) -> TimeInterval { values[index].generalizedTimeValue!.zonedDate.date.timeIntervalSince1970 }
func tz(_ index: Int) -> TimeZone { values[index].generalizedTimeValue!.zonedDate.timeZone }
func offset(_ index: Int) -> Int { values[index].generalizedTimeValue!.zonedDate.timeZone.secondsFromGMT() }
XCTAssertEqual(date(0), 7_979_553_224.0)
XCTAssertEqual(tz(0), .current)
XCTAssertEqual(date(1), 7_979_553_224.567)
XCTAssertEqual(tz(1), .current)
XCTAssertEqual(date(2), 7_979_553_224)
XCTAssertEqual(tz(2), .utc)
XCTAssertEqual(date(3), 7_979_553_224.567)
XCTAssertEqual(tz(3), .utc)
let secondsOffset: Int
#if !os(Linux)
if #available(macOS 14, iOS 17, tvOS 17, watchOS 10, *) {
secondsOffset = 40953
}
else {
secondsOffset = 40980
}
#else
secondsOffset = 40980
#endif
XCTAssertEqual(date(4), 7_979_553_224 - 40953)
XCTAssertEqual(offset(4), secondsOffset)
XCTAssertEqual(date(5), 7_979_553_224.567 - 40953)
XCTAssertEqual(offset(5), secondsOffset)
XCTAssertEqual(date(6), 7_979_553_224 - 40953)
XCTAssertEqual(offset(6), secondsOffset)
XCTAssertEqual(date(7), 7_979_553_224.567 - 40953)
XCTAssertEqual(offset(7), secondsOffset)
XCTAssertEqual(date(8), 7_979_553_224 - 40920)
XCTAssertEqual(offset(8), 40920)
XCTAssertEqual(date(9), 7_979_553_224.567 - 40920)
XCTAssertEqual(offset(9), 40920)
XCTAssertEqual(date(10), 7_979_553_224 - 40920)
XCTAssertEqual(offset(10), 40920)
XCTAssertEqual(date(11), 7_979_553_224.567 - 40920)
XCTAssertEqual(offset(11), 40920)
XCTAssertEqual(date(12), 7_979_553_224 - 39600)
XCTAssertEqual(offset(12), 39600)
XCTAssertEqual(date(13), 7_979_553_224.567 - 39600)
XCTAssertEqual(offset(13), 39600)
XCTAssertEqual(date(14), 7_979_553_224 + 40953)
XCTAssertEqual(offset(14), -secondsOffset)
XCTAssertEqual(date(15), 7_979_553_224.567 + 40953)
XCTAssertEqual(offset(15), -secondsOffset)
XCTAssertEqual(date(16), 7_979_553_224 + 40953)
XCTAssertEqual(offset(16), -secondsOffset)
XCTAssertEqual(date(17), 7_979_553_224.567 + 40953)
XCTAssertEqual(offset(17), -secondsOffset)
XCTAssertEqual(date(18), 7_979_553_224 + 40920)
XCTAssertEqual(offset(18), -40920)
XCTAssertEqual(date(19), 7_979_553_224.567 + 40920)
XCTAssertEqual(offset(19), -40920)
XCTAssertEqual(date(20), 7_979_553_224 + 40920)
XCTAssertEqual(offset(20), -40920)
XCTAssertEqual(date(21), 7_979_553_224.567 + 40920)
XCTAssertEqual(offset(21), -40920)
XCTAssertEqual(date(22), 7_979_553_224 + 39600)
XCTAssertEqual(offset(22), -39600)
XCTAssertEqual(date(23), 7_979_553_224.567 + 39600)
XCTAssertEqual(offset(23), -39600)
}
func testUTCTimeEncodingDecoding() throws {
struct TestStruct: Codable, Equatable {
let a: AnyTime
let b: AnyTime
}
let TestStructSchema: Schema =
.sequence([
"a": .time(kind: .utc),
"b": .time(kind: .utc),
])
let src = TestStruct(
a: AnyTime(date: Date().truncatedToSecs, timeZone: .utc, kind: .utc),
b: AnyTime(date: Date().truncatedToSecs, timeZone: .timeZone(from: "+1122")!, kind: .utc)
)
let srcData = try ASN1Encoder(schema: TestStructSchema).encode(src)
let dst = try ASN1Decoder(schema: TestStructSchema).decode(TestStruct.self, from: srcData)
XCTAssertEqual(src, dst)
}
func testUTCTimeReadingWriting() throws {
let data = try ASN1DERWriter.write([
ASN1.tagged(23, "2211112233Z".data(using: .ascii)!),
ASN1.tagged(23, "221111223344Z".data(using: .ascii)!),
ASN1.tagged(23, "2211112233+1122".data(using: .ascii)!),
ASN1.tagged(23, "221111223344+1122".data(using: .ascii)!),
ASN1.tagged(23, "2211112233-1122".data(using: .ascii)!),
ASN1.tagged(23, "221111223344-1122".data(using: .ascii)!),
])
let values = try ASN1DERReader.parse(data: data)
func date(_ index: Int) -> TimeInterval { values[index].utcTimeValue!.zonedDate.date.timeIntervalSince1970 }
func tz(_ index: Int) -> TimeZone { values[index].utcTimeValue!.zonedDate.timeZone }
func offset(_ index: Int) -> Int { values[index].utcTimeValue!.zonedDate.timeZone.secondsFromGMT() }
XCTAssertEqual(date(0), 1_668_205_980.0)
XCTAssertEqual(tz(0), .utc)
XCTAssertEqual(date(1), 1_668_206_024.0)
XCTAssertEqual(tz(1), .utc)
XCTAssertEqual(date(2), 1_668_165_060.0)
XCTAssertEqual(offset(2), 40920)
XCTAssertEqual(date(3), 1_668_165_104.0)
XCTAssertEqual(offset(3), 40920)
XCTAssertEqual(date(4), 1_668_246_900.0)
XCTAssertEqual(offset(4), -40920)
XCTAssertEqual(date(5), 1_668_246_944.0)
XCTAssertEqual(offset(5), -40920)
}
func testRandomData() throws {
struct TestStruct: Codable, SchemaSpecified {
var id: OID
var data: Data
static var asn1Schema: Schema {
.sequence([
"id": .objectIdentifier(),
"data": .octetString(size: .is(16))
])
}
}
let encoded = try ASN1.Encoder.encode(TestStruct(id: [1, 2, 3, 4, 5], data: Data(count: 16)))
for _ in 0 ..< 10000 {
var random = Data(capacity: encoded.count)
for _ in 0 ..< encoded.count {
random.append(UInt8.random(in: 0 ..< .max))
}
XCTAssertThrowsError(try ASN1.Decoder.decode(TestStruct.self, from: random))
}
}
}