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https://github.com/jackjackbits/bitchat.git
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Islam
95 lines
3.1 KiB
Swift
95 lines
3.1 KiB
Swift
import Foundation
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import XCTest
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@testable import BitFoundation // to avoid unnecessary public's
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@testable import bitchat
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final class BinaryEncodingUtilsTests: XCTestCase {
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func test_appendAndReadPrimitiveValues_roundTrip() throws {
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var data = Data()
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data.appendUInt8(0x12)
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data.appendUInt16(0x3456)
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data.appendUInt32(0x789ABCDE)
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data.appendUInt64(0x0123456789ABCDEF)
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var offset = 0
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XCTAssertEqual(data.readUInt8(at: &offset), 0x12)
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XCTAssertEqual(data.readUInt16(at: &offset), 0x3456)
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XCTAssertEqual(data.readUInt32(at: &offset), 0x789ABCDE)
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XCTAssertEqual(data.readUInt64(at: &offset), 0x0123456789ABCDEF)
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XCTAssertEqual(offset, data.count)
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}
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func test_appendAndReadStringDataAndDate_roundTrip() throws {
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let expectedDate = Date(timeIntervalSince1970: 1_700_000_000.123)
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let expectedPayload = Data([0xAA, 0xBB, 0xCC, 0xDD])
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var data = Data()
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data.appendString("hello")
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data.appendData(expectedPayload)
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data.appendDate(expectedDate)
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var offset = 0
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XCTAssertEqual(data.readString(at: &offset), "hello")
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XCTAssertEqual(data.readData(at: &offset), expectedPayload)
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let decodedDate = try XCTUnwrap(data.readDate(at: &offset))
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XCTAssertEqual(decodedDate.timeIntervalSince1970, expectedDate.timeIntervalSince1970, accuracy: 0.001)
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}
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func test_appendUUID_and_readUUID_roundTrip() throws {
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let uuid = "12345678-90ab-cdef-1234-567890abcdef"
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var data = Data()
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data.appendUUID(uuid)
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var offset = 0
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XCTAssertEqual(data.readUUID(at: &offset), uuid.uppercased())
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}
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func test_appendStringAndData_truncateToConfiguredMaxLength() throws {
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var data = Data()
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data.appendString("abcdef", maxLength: 4)
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data.appendData(Data([1, 2, 3, 4, 5]), maxLength: 3)
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var offset = 0
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XCTAssertEqual(data.readString(at: &offset), "abcd")
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XCTAssertEqual(data.readData(at: &offset, maxLength: 3), Data([1, 2, 3]))
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}
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func test_readMethods_returnNilWhenOutOfBounds() {
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var offset = 0
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let shortData = Data([0x01])
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XCTAssertNil(shortData.readUInt16(at: &offset))
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XCTAssertEqual(offset, 0)
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offset = 0
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XCTAssertNil(shortData.readString(at: &offset))
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XCTAssertEqual(offset, 1)
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offset = 0
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XCTAssertNil(shortData.readFixedBytes(at: &offset, count: 2))
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XCTAssertEqual(offset, 0)
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}
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func test_sha256Hex_andExtendedLengthStringRoundTrip() throws {
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XCTAssertEqual(
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Data("abc".utf8).sha256Hex(),
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"ba7816bf8f01cfea414140de5dae2223b00361a396177a9cb410ff61f20015ad"
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)
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var data = Data()
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data.appendString("hello", maxLength: 300)
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var offset = 0
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XCTAssertEqual(data.readString(at: &offset, maxLength: 300), "hello")
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}
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func test_readString_returnsNilForInvalidUTF8ExtendedPayload() {
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let invalidUTF8 = Data([0x00, 0x02, 0xFF, 0xFF])
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var offset = 0
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XCTAssertNil(invalidUTF8.readString(at: &offset, maxLength: 300))
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XCTAssertEqual(offset, invalidUTF8.count)
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}
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}
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