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316 lines
14 KiB
Swift
316 lines
14 KiB
Swift
// Copyright © 2023 Rangeproof Pty Ltd. All rights reserved.
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import Foundation
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import Quick
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import Nimble
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@testable import SessionUtilitiesKit
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class BencodeSpec: QuickSpec {
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override class func spec() {
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// MARK: - Bencode
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describe("Bencode") {
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// MARK: -- when decoding
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context("when decoding") {
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// MARK: ---- should decode a basic string
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it("should decode a basic string") {
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let basicStringData: Data = "5:howdy".data(using: .utf8)!
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let result = try? Bencode.decode(String.self, from: basicStringData)
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expect(result).to(equal("howdy"))
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}
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// MARK: ---- should decode a basic integer
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it("should decode a basic integer") {
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let basicIntegerData: Data = "i3e".data(using: .utf8)!
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let result = try? Bencode.decode(Int.self, from: basicIntegerData)
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expect(result).to(equal(3))
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}
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// MARK: ---- should decode a list of integers
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it("should decode a list of integers") {
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let basicIntListData: Data = "li1ei2ee".data(using: .utf8)!
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let result = try? Bencode.decode([Int].self, from: basicIntListData)
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expect(result).to(equal([1, 2]))
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}
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// MARK: ---- should decode a basic dict
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it("should decode a basic dict") {
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let basicDictData: Data = "d4:spaml1:a1:bee".data(using: .utf8)!
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let result = try? Bencode.decode([String: [String]].self, from: basicDictData)
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expect(result).to(equal(["spam": ["a", "b"]]))
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}
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// MARK: ---- decodes a decodable type
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it("decodes a decodable type") {
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let data: Data = "d8:intValuei100e11:stringValue4:Test".data(using: .utf8)!
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let result: TestType? = try? Bencode.decode(TestType.self, from: data)
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expect(result).to(equal(TestType(intValue: 100, stringValue: "Test")))
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}
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// MARK: ---- decodes a stringified decodable type
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it("decodes a stringified decodable type") {
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let data: Data = "37:{\"intValue\":100,\"stringValue\":\"Test\"}".data(using: .utf8)!
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let result: TestType? = try? Bencode.decode(TestType.self, from: data)
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expect(result).to(equal(TestType(intValue: 100, stringValue: "Test")))
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}
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}
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// MARK: -- when decoding a response
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context("when decoding a response") {
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// MARK: ---- with a decodable type
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context("with a decodable type") {
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// MARK: ------ decodes successfully
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it("decodes successfully") {
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let data: Data = "ld8:intValuei100e11:stringValue4:Teste5:\u{01}\u{02}\u{03}\u{04}\u{05}e"
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.data(using: .utf8)!
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let result: BencodeResponse<TestType>? = try? Bencode.decodeResponse(from: data)
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expect(result)
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.to(equal(
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BencodeResponse(
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info: TestType(
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intValue: 100,
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stringValue: "Test"
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),
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data: Data([1, 2, 3, 4, 5])
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)
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))
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}
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// MARK: ------ decodes successfully with no body
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it("decodes successfully with no body") {
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let data: Data = "ld8:intValuei100e11:stringValue4:Teste"
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.data(using: .utf8)!
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let result: BencodeResponse<TestType>? = try? Bencode.decodeResponse(from: data)
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expect(result)
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.to(equal(
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BencodeResponse(
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info: TestType(
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intValue: 100,
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stringValue: "Test"
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),
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data: nil
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)
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))
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}
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// MARK: ------ throws a parsing error when given an invalid length
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it("throws a parsing error when given an invalid length") {
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let data: Data = "ld12:intValuei100e11:stringValue4:Teste5:\u{01}\u{02}\u{03}\u{04}\u{05}e"
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.data(using: .utf8)!
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expect {
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let result: BencodeResponse<TestType> = try Bencode.decodeResponse(from: data)
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_ = result
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}.to(throwError(HTTPError.parsingFailed))
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}
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// MARK: ------ throws a parsing error when given an invalid key
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it("throws a parsing error when given an invalid key") {
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let data: Data = "ld7:INVALIDi100e11:stringValue4:Teste5:\u{01}\u{02}\u{03}\u{04}\u{05}e"
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.data(using: .utf8)!
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expect {
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let result: BencodeResponse<TestType> = try Bencode.decodeResponse(from: data)
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_ = result
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}.to(throwError(HTTPError.parsingFailed))
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}
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// MARK: ------ decodes correctly when trying to decode an int to a bool with custom handling
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it("decodes correctly when trying to decode an int to a bool with custom handling") {
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let data: Data = "ld9:boolValuei1e11:stringValue4:testee"
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.data(using: .utf8)!
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expect {
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let result: BencodeResponse<TestType3> = try Bencode.decodeResponse(from: data)
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_ = result
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}.toNot(throwError(HTTPError.parsingFailed))
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}
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// MARK: ------ throws a parsing error when trying to decode an int to a bool
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it("throws a parsing error when trying to decode an int to a bool") {
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let data: Data = "ld9:boolValuei1e11:stringValue4:testee"
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.data(using: .utf8)!
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expect {
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let result: BencodeResponse<TestType2> = try Bencode.decodeResponse(from: data)
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_ = result
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}.to(throwError(HTTPError.parsingFailed))
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}
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}
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// MARK: ---- with stringified json info
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context("with stringified json info") {
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// MARK: ------ decodes successfully
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it("decodes successfully") {
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let data: Data = "l37:{\"intValue\":100,\"stringValue\":\"Test\"}5:\u{01}\u{02}\u{03}\u{04}\u{05}e"
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.data(using: .utf8)!
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let result: BencodeResponse<TestType>? = try? Bencode.decodeResponse(from: data)
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expect(result)
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.to(equal(
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BencodeResponse(
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info: TestType(
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intValue: 100,
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stringValue: "Test"
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),
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data: Data([1, 2, 3, 4, 5])
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)
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))
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}
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// MARK: ------ decodes successfully with no body
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it("decodes successfully with no body") {
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let data: Data = "l37:{\"intValue\":100,\"stringValue\":\"Test\"}e"
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.data(using: .utf8)!
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let result: BencodeResponse<TestType>? = try? Bencode.decodeResponse(from: data)
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expect(result)
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.to(equal(
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BencodeResponse(
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info: TestType(
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intValue: 100,
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stringValue: "Test"
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),
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data: nil
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)
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))
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}
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// MARK: ------ throws a parsing error when invalid
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it("throws a parsing error when invalid") {
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let data: Data = "l36:{\"INVALID\":100,\"stringValue\":\"Test\"}5:\u{01}\u{02}\u{03}\u{04}\u{05}e"
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.data(using: .utf8)!
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expect {
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let result: BencodeResponse<TestType> = try Bencode.decodeResponse(from: data)
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_ = result
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}.to(throwError(HTTPError.parsingFailed))
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}
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}
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// MARK: ---- with a string value
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context("with a string value") {
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// MARK: ------ decodes successfully
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it("decodes successfully") {
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let data: Data = "l4:Test5:\u{01}\u{02}\u{03}\u{04}\u{05}e".data(using: .utf8)!
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let result: BencodeResponse<String>? = try? Bencode.decodeResponse(from: data)
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expect(result)
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.to(equal(
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BencodeResponse(
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info: "Test",
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data: Data([1, 2, 3, 4, 5])
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)
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))
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}
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// MARK: ------ decodes successfully with no body
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it("decodes successfully with no body") {
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let data: Data = "l4:Teste".data(using: .utf8)!
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let result: BencodeResponse<String>? = try? Bencode.decodeResponse(from: data)
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expect(result)
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.to(equal(
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BencodeResponse(
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info: "Test",
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data: nil
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)
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))
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}
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// MARK: ------ throws a parsing error when invalid
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it("throws a parsing error when invalid") {
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let data: Data = "l10:Teste".data(using: .utf8)!
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expect {
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let result: BencodeResponse<String> = try Bencode.decodeResponse(from: data)
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_ = result
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}.to(throwError(HTTPError.parsingFailed))
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}
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}
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// MARK: ---- with an int value
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context("with an int value") {
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// MARK: ------ decodes successfully
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it("decodes successfully") {
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let data: Data = "li100e5:\u{01}\u{02}\u{03}\u{04}\u{05}e".data(using: .utf8)!
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let result: BencodeResponse<Int>? = try? Bencode.decodeResponse(from: data)
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expect(result)
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.to(equal(
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BencodeResponse(
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info: 100,
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data: Data([1, 2, 3, 4, 5])
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)
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))
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}
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// MARK: ------ decodes successfully with no body
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it("decodes successfully with no body") {
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let data: Data = "li100ee".data(using: .utf8)!
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let result: BencodeResponse<Int>? = try? Bencode.decodeResponse(from: data)
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expect(result)
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.to(equal(
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BencodeResponse(
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info: 100,
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data: nil
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)
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))
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}
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// MARK: ------ throws a parsing error when invalid
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it("throws a parsing error when invalid") {
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let data: Data = "l4:Teste".data(using: .utf8)!
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expect {
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let result: BencodeResponse<Int> = try Bencode.decodeResponse(from: data)
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_ = result
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}.to(throwError(HTTPError.parsingFailed))
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}
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}
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}
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}
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}
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}
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// MARK: - Test Types
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fileprivate struct TestType: Codable, Equatable {
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let intValue: Int
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let stringValue: String
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}
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fileprivate struct TestType2: Codable, Equatable {
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let stringValue: String
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let boolValue: Bool
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}
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fileprivate struct TestType3: Codable, Equatable {
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let stringValue: String
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let boolValue: Bool
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init(_ stringValue: String, _ boolValue: Bool) {
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self.stringValue = stringValue
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self.boolValue = boolValue
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}
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init(from decoder: Decoder) throws {
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let container: KeyedDecodingContainer<CodingKeys> = try decoder.container(keyedBy: CodingKeys.self)
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self = TestType3(
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try container.decode(String.self, forKey: .stringValue),
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((try? container.decode(Bool.self, forKey: .boolValue)) ?? false)
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)
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}
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}
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