48 lines
1.3 KiB
Swift
48 lines
1.3 KiB
Swift
//
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// Copyright 2022 Signal Messenger, LLC
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// SPDX-License-Identifier: AGPL-3.0-only
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//
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import SignalServiceKit
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import XCTest
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class DataMessagePaddingTests: XCTestCase {
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func testPadding() {
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for i in 0...78 {
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XCTAssertEqual(Data(count: i).paddedMessageBody.count, 79)
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}
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for i in 79...158 {
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XCTAssertEqual(Data(count: i).paddedMessageBody.count, 159)
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}
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}
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func testRandomPadding() {
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for _ in 0...1000 {
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let randomMessage = Randomness.generateRandomBytes(501)
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let paddedMessage = randomMessage.paddedMessageBody
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XCTAssertEqual(paddedMessage.withoutPadding(), randomMessage)
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}
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}
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func testWithoutPadding() {
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let original = Data([1, 2, 3, 0x80, 4, 5, 6])
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let padded = original + [0x80] + Data(count: 99)
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XCTAssertEqual(padded.withoutPadding(), original)
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}
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func testWithoutPaddingInvalid() {
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let testCases: [Data] = [
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// No padding at all
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Data([1, 2, 3]),
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// No separator
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Data([1, 2, 3, 0, 0, 0]),
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// Non-zeroes after separator
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Data([1, 2, 3, 0x80, 4, 5, 6, 0]),
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]
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for testCase in testCases {
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XCTAssertEqual(testCase.withoutPadding(), testCase)
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}
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}
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}
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