/
FlatbuffersVerifierTests.swift
265 lines (229 loc) · 11 KB
/
FlatbuffersVerifierTests.swift
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/*
* Copyright 2021 Google Inc. All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import XCTest
@testable import FlatBuffers
final class FlatbuffersVerifierTests: XCTestCase {
lazy var validStorage: ByteBuffer.Storage = ByteBuffer.Storage(
count: Int(FlatBufferMaxSize) - 1,
alignment: 1)
lazy var errorStorage: ByteBuffer.Storage = ByteBuffer.Storage(
count: Int(FlatBufferMaxSize) + 1,
alignment: 1)
var buffer: ByteBuffer!
var validFlatbuffersObject: ByteBuffer!
var invalidFlatbuffersObject: ByteBuffer!
override func setUp() {
// swiftformat:disable all
buffer = ByteBuffer(initialSize: 32)
add(buffer: &buffer, v: 4, p: 16)
add(buffer: &buffer, v: 4, p: 20)
validFlatbuffersObject = ByteBuffer(bytes: [48, 0, 0, 0, 77, 79, 78, 83, 0, 0, 0, 0, 36, 0, 72, 0, 40, 0, 0, 0, 38, 0, 32, 0, 0, 0, 28, 0, 0, 0, 27, 0, 20, 0, 16, 0, 12, 0, 4, 0, 0, 0, 0, 0, 0, 0, 11, 0, 36, 0, 0, 0, 164, 0, 0, 0, 0, 0, 0, 1, 60, 0, 0, 0, 68, 0, 0, 0, 76, 0, 0, 0, 0, 0, 0, 1, 88, 0, 0, 0, 120, 0, 0, 0, 0, 0, 80, 0, 0, 0, 128, 63, 0, 0, 0, 64, 0, 0, 64, 64, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 8, 64, 2, 0, 5, 0, 6, 0, 0, 0, 2, 0, 0, 0, 64, 0, 0, 0, 48, 0, 0, 0, 2, 0, 0, 0, 30, 0, 40, 0, 10, 0, 20, 0, 152, 255, 255, 255, 4, 0, 0, 0, 4, 0, 0, 0, 70, 114, 101, 100, 0, 0, 0, 0, 5, 0, 0, 0, 0, 1, 2, 3, 4, 0, 0, 0, 5, 0, 0, 0, 116, 101, 115, 116, 50, 0, 0, 0, 5, 0, 0, 0, 116, 101, 115, 116, 49, 0, 0, 0, 9, 0, 0, 0, 77, 121, 77, 111, 110, 115, 116, 101, 114, 0, 0, 0, 3, 0, 0, 0, 20, 0, 0, 0, 36, 0, 0, 0, 4, 0, 0, 0, 240, 255, 255, 255, 32, 0, 0, 0, 248, 255, 255, 255, 36, 0, 0, 0, 12, 0, 8, 0, 0, 0, 0, 0, 0, 0, 4, 0, 12, 0, 0, 0, 28, 0, 0, 0, 5, 0, 0, 0, 87, 105, 108, 109, 97, 0, 0, 0, 6, 0, 0, 0, 66, 97, 114, 110, 101, 121, 0, 0, 5, 0, 0, 0, 70, 114, 111, 100, 111, 0, 0, 0])
invalidFlatbuffersObject = ByteBuffer(bytes: [0, 48, 0, 0, 0, 77, 79, 78, 83, 0, 0, 0, 0, 36, 0, 72, 0, 40, 0, 0, 0, 38, 0, 32, 0, 0, 0, 28, 0, 0, 0, 27, 0, 20, 0, 16, 0, 12, 0, 4, 0, 0, 0, 0, 0, 0, 0, 11, 0, 36, 0, 0, 0, 164, 0, 0, 0, 0, 0, 0, 1, 60, 0, 0, 0, 68, 0, 0, 0, 76, 0, 0, 0, 0, 0, 0, 1, 88, 0, 0, 0, 120, 0, 0, 0, 0, 0, 80, 0, 0, 0, 128, 63, 0, 0, 0, 64, 0, 0, 64, 64, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 8, 64, 2, 0, 5, 0, 6, 0, 0, 0, 2, 0, 0, 0, 64, 0, 0, 0, 48, 0, 0, 0, 2, 0, 0, 0, 30, 0, 40, 0, 10, 0, 20, 0, 152, 255, 255, 255, 4, 0, 0, 0, 4, 0, 0, 0, 70, 114, 101, 100, 0, 0, 0, 0, 5, 0, 0, 0, 0, 1, 2, 3, 4, 0, 0, 0, 5, 0, 0, 0, 116, 101, 115, 116, 50, 0, 0, 0, 5, 0, 0, 0, 116, 101, 115, 116, 49, 0, 0, 0, 9, 0, 0, 0, 77, 121, 77, 111, 110, 115, 116, 101, 114, 0, 0, 0, 3, 0, 0, 0, 20, 0, 0, 0, 36, 0, 0, 0, 4, 0, 0, 0, 240, 255, 255, 255, 32, 0, 0, 0, 248, 255, 255, 255, 36, 0, 0, 0, 12, 0, 8, 0, 0, 0, 0, 0, 0, 0, 4, 0, 12, 0, 0, 0, 28, 0, 0, 0, 5, 0, 0, 0, 87, 105, 108, 109, 97, 0, 0, 0, 6, 0, 0, 0, 66, 97, 114, 110, 101, 121, 0, 0, 5, 0, 0, 0, 70, 114, 111, 100, 111, 0, 0, 0])
// swiftformat:enable all
}
func testVeriferInitPassing() {
var buffer = ByteBuffer(initialSize: 0)
buffer._storage = validStorage
XCTAssertNoThrow(try Verifier(buffer: &buffer))
}
func testVeriferInitFailing() {
var buffer = ByteBuffer(initialSize: 0)
buffer._storage = errorStorage
XCTAssertThrowsError(try Verifier(buffer: &buffer))
}
func testVerifierCheckAlignment() {
var verifier = try! Verifier(buffer: &buffer)
do {
try verifier.isAligned(position: 20, type: Int.self)
} catch {
XCTAssertEqual(
error as? FlatbuffersErrors,
.missAlignedPointer(position: 20, type: "Int"))
}
XCTAssertNoThrow(try verifier.isAligned(position: 16, type: Int.self))
var newVerifer = try! Verifier(buffer: &buffer, checkAlignment: false)
XCTAssertNoThrow(try newVerifer.isAligned(position: 16, type: Int.self))
}
func testRangeInBuffer() {
var verifier = try! Verifier(buffer: &buffer)
let size = MemoryLayout<Int64>.size
XCTAssertNoThrow(try verifier.rangeInBuffer(position: 24, size: size))
XCTAssertThrowsError(try verifier.rangeInBuffer(position: 26, size: size))
XCTAssertThrowsError(try verifier.rangeInBuffer(position: 26, size: size))
XCTAssertThrowsError(try verifier.rangeInBuffer(position: 30, size: size))
XCTAssertThrowsError(try verifier.rangeInBuffer(position: 32, size: size))
XCTAssertThrowsError(try verifier.rangeInBuffer(position: 34, size: size))
verifier = try! Verifier(
buffer: &buffer,
options: .init(maxDepth: 0, maxTableCount: 0, maxApparentSize: 4))
do {
try verifier.rangeInBuffer(position: 24, size: size)
} catch {
XCTAssertEqual(
error as! FlatbuffersErrors,
.apparentSizeTooLarge)
}
}
func testPositionInBuffer() {
var verifier = try! Verifier(buffer: &buffer)
XCTAssertNoThrow(try verifier.inBuffer(position: 0, of: Int64.self))
XCTAssertNoThrow(try verifier.inBuffer(position: 24, of: Int64.self))
XCTAssertThrowsError(try verifier.inBuffer(position: -9, of: Int64.self))
XCTAssertThrowsError(try verifier.inBuffer(position: 25, of: Int64.self))
XCTAssertThrowsError(try verifier.inBuffer(position: 26, of: Int32.self))
XCTAssertThrowsError(try verifier.inBuffer(position: 26, of: Int64.self))
XCTAssertThrowsError(try verifier.inBuffer(position: 30, of: Int64.self))
XCTAssertThrowsError(try verifier.inBuffer(position: 32, of: Int64.self))
XCTAssertThrowsError(try verifier.inBuffer(position: 34, of: Int64.self))
}
func testVisitTable() {
var verifier = try! Verifier(buffer: &validFlatbuffersObject)
XCTAssertNoThrow(try verifier.visitTable(at: 48))
verifier.reset()
}
func testTableVerifier() {
var verifier = try! Verifier(buffer: &validFlatbuffersObject)
var tableVerifer = try! verifier.visitTable(at: 48)
XCTAssertNoThrow(try tableVerifer.visit(
field: 4,
fieldName: "Vec",
required: false,
type: Vec3.self))
XCTAssertNoThrow(try tableVerifer.visit(
field: 8,
fieldName: "hp",
required: false,
type: Int16.self))
XCTAssertNoThrow(try tableVerifer.visit(
field: 10,
fieldName: "name",
required: true,
type: ForwardOffset<String>.self))
XCTAssertNoThrow(try tableVerifer.visit(
field: 14,
fieldName: "inventory",
required: false,
type: ForwardOffset<Vector<UInt8, UInt8>>.self))
XCTAssertNoThrow(try tableVerifer.visit(
field: 22,
fieldName: "test4",
required: false,
type: ForwardOffset<Vector<MyGame_Example_Test, MyGame_Example_Test>>
.self))
XCTAssertNoThrow(try tableVerifer.visit(
field: 24,
fieldName: "Vector of strings",
required: false,
type: ForwardOffset<Vector<ForwardOffset<String>, String>>.self))
do {
try tableVerifer.visit(
field: 13,
fieldName: "notvalid",
required: false,
type: Int16.self)
} catch {
XCTAssertEqual(
error as! FlatbuffersErrors,
.missAlignedPointer(position: 25, type: "UInt16"))
}
do {
try tableVerifer.visit(
unionKey: 18,
unionField: 20,
unionKeyName: "testType",
fieldName: "test",
required: false,
completion: { (verifier, key: MyGame_Example_Any_, pos) in
switch key {
case .none_:
break
case .monster:
try ForwardOffset<MyGame_Example_Monster>.verify(
&verifier,
at: pos,
of: MyGame_Example_Monster.self)
case .testsimpletablewithenum:
break
case .mygameExample2Monster:
break
}
})
} catch {
XCTAssertEqual(
error as! FlatbuffersErrors,
.missAlignedPointer(position: 25, type: "UInt16"))
}
}
func testVerifyUnionVectors() {
// swiftformat:disable all
var byteBuffer = ByteBuffer(bytes: [20, 0, 0, 0, 77, 79, 86, 73, 12, 0, 12, 0, 0, 0, 0, 0, 8, 0, 4, 0, 12, 0, 0, 0, 8, 0, 0, 0, 20, 0, 0, 0, 3, 0, 0, 0, 24, 0, 0, 0, 32, 0, 0, 0, 12, 0, 0, 0, 3, 0, 0, 0, 3, 1, 4, 0, 2, 0, 0, 0, 7, 0, 0, 0, 0, 0, 6, 0, 8, 0, 4, 0, 6, 0, 0, 0, 8, 0, 0, 0])
// swiftformat:enable all
XCTAssertNoThrow(try getCheckedRoot(byteBuffer: &byteBuffer) as Movie)
}
func testErrorWrongFileId() {
// swiftformat:disable all
var byteBuffer = ByteBuffer(bytes: [20, 0, 0, 0, 77, 79, 86, 73, 12, 0, 12, 0, 0, 0, 0, 0, 8, 0, 4, 0, 12, 0, 0, 0, 8, 0, 0, 0, 20, 0, 0, 0, 3, 0, 0, 0, 24, 0, 0, 0, 32, 0, 0, 0, 12, 0, 0, 0, 3, 0, 0, 0, 3, 1, 4, 0, 2, 0, 0, 0, 7, 0, 0, 0, 0, 0, 6, 0, 8, 0, 4, 0, 6, 0, 0, 0, 8, 0, 0, 0])
// swiftformat:enable all
XCTAssertThrowsError(try getCheckedRoot(byteBuffer: &byteBuffer, fileId: "FLEX") as Movie)
}
func testVerifyPrefixedBuffer() {
// swiftformat:disable all
var byteBuffer = ByteBuffer(bytes: [0, 0, 0, 1, 20, 0, 0, 0, 77, 79, 86, 73, 12, 0, 12, 0, 0, 0, 0, 0, 8, 0, 4, 0, 12, 0, 0, 0, 8, 0, 0, 0, 20, 0, 0, 0, 3, 0, 0, 0, 24, 0, 0, 0, 32, 0, 0, 0, 12, 0, 0, 0, 3, 0, 0, 0, 3, 1, 4, 0, 2, 0, 0, 0, 7, 0, 0, 0, 0, 0, 6, 0, 8, 0, 4, 0, 6, 0, 0, 0, 8, 0, 0, 0])
// swiftformat:enable all
XCTAssertThrowsError(
try getCheckedPrefixedSizeRoot(byteBuffer: &byteBuffer) as Movie)
}
func testFullVerifier() {
XCTAssertNoThrow(
try getCheckedRoot(
byteBuffer: &validFlatbuffersObject) as MyGame_Example_Monster)
}
func testFullVerifierWithFileId() {
XCTAssertNoThrow(
try getCheckedRoot(
byteBuffer: &validFlatbuffersObject,
fileId: MyGame_Example_Monster.id) as MyGame_Example_Monster)
}
func testInvalidBuffer() {
XCTAssertThrowsError(
try getCheckedRoot(
byteBuffer: &invalidFlatbuffersObject) as MyGame_Example_Monster)
}
func testValidUnionBuffer() {
let string = "Awesome \\\\t\t\nstring!"
var fb = FlatBufferBuilder()
let stringOffset = fb.create(string: string)
let characterType: [Character] = [.bookfan, .other]
let characters = [
fb.create(struct: BookReader(booksRead: 7)),
stringOffset,
]
let types = fb.createVector(characterType)
let characterVector = fb.createVector(ofOffsets: characters)
let end = Movie.createMovie(
&fb,
mainCharacterType: .other,
mainCharacterOffset: Offset(offset: stringOffset.o),
charactersTypeVectorOffset: types,
charactersVectorOffset: characterVector)
Movie.finish(&fb, end: end)
var buf = fb.sizedBuffer
XCTAssertNoThrow(try getCheckedRoot(byteBuffer: &buf) as Movie)
}
func add(buffer: inout ByteBuffer, v: Int32, p: Int) {
buffer.write(value: v, index: p)
}
}