Open-source multiplayer game server compatible with the RuneScape client https://www.openrs2.org/
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openrs2/protocol/src/test/kotlin/org/openrs2/protocol/js5/Js5ResponseDecoderTest.kt

120 lines
3.7 KiB

package org.openrs2.protocol.js5
import io.netty.buffer.ByteBuf
import io.netty.buffer.ByteBufAllocator
import io.netty.buffer.Unpooled
import io.netty.channel.embedded.EmbeddedChannel
import io.netty.handler.codec.DecoderException
import org.openrs2.buffer.use
import org.openrs2.buffer.wrappedBuffer
import kotlin.test.Test
import kotlin.test.assertEquals
import kotlin.test.assertFailsWith
class Js5ResponseDecoderTest {
@Test
fun testDecode() {
testDecode("509.dat", "509-prefetch.dat", true)
testDecode("509.dat", "509-urgent.dat", false)
testDecode("510.dat", "510-prefetch.dat", true)
testDecode("510.dat", "510-urgent.dat", false)
testDecode("1020.dat", "1020-prefetch.dat", true)
testDecode("1020.dat", "1020-urgent.dat", false)
testDecode("1021.dat", "1021-prefetch.dat", true)
testDecode("1021.dat", "1021-urgent.dat", false)
testDecode("1531.dat", "1531-prefetch.dat", true)
testDecode("1531.dat", "1531-urgent.dat", false)
testDecode("1532.dat", "1532-prefetch.dat", true)
testDecode("1532.dat", "1532-urgent.dat", false)
}
@Test
fun testDecodeFragmented() {
val channel = EmbeddedChannel(Js5ResponseDecoder())
channel.writeInbound(wrappedBuffer(2, 0, 3, 0, 0, 0, 0))
channel.writeInbound(
wrappedBuffer(
7,
'O'.code.toByte(),
'p'.code.toByte(),
'e'.code.toByte(),
'n'.code.toByte()
)
)
channel.writeInbound(wrappedBuffer('R'.code.toByte(), 'S'.code.toByte(), '2'.code.toByte()))
ByteBufAllocator.DEFAULT.buffer().use { buf ->
buf.writeByte(0)
buf.writeInt(7)
buf.writeCharSequence("OpenRS2", Charsets.UTF_8)
val expected = Js5Response(false, 2, 3, buf)
channel.readInbound<Js5Response>().use { actual ->
assertEquals(expected, actual)
}
}
}
@Test
fun testDecodeNegativeLength() {
val channel = EmbeddedChannel(Js5ResponseDecoder())
assertFailsWith<DecoderException> {
channel.writeInbound(wrappedBuffer(2, 0, 3, 0, 0xFF.toByte(), 0xFF.toByte(), 0xFF.toByte(), 0xFF.toByte()))
}
}
@Test
fun testDecodeOverflowUncompressed() {
val channel = EmbeddedChannel(Js5ResponseDecoder())
assertFailsWith<DecoderException> {
channel.writeInbound(wrappedBuffer(2, 0, 3, 0, 0x7F, 0xFF.toByte(), 0xFF.toByte(), 0xFB.toByte()))
}
}
@Test
fun testDecodeOverflowCompressed() {
val channel = EmbeddedChannel(Js5ResponseDecoder())
assertFailsWith<DecoderException> {
channel.writeInbound(wrappedBuffer(2, 0, 3, 1, 0x7F, 0xFF.toByte(), 0xFF.toByte(), 0xF7.toByte()))
}
}
@Test
fun testDecodeInvalidBlockTrailer() {
val channel = EmbeddedChannel(Js5ResponseDecoder())
assertFailsWith<DecoderException> {
channel.writeInbound(read("invalid-block-trailer.dat"))
}
}
private fun testDecode(container: String, encoded: String, prefetch: Boolean) {
val channel = EmbeddedChannel(Js5ResponseDecoder())
channel.writeInbound(read(encoded))
read(container).use { data ->
val expected = Js5Response(prefetch, 2, 3, data)
channel.readInbound<Js5Response>().use { actual ->
assertEquals(expected, actual)
}
}
}
private fun read(name: String): ByteBuf {
Js5ResponseDecoderTest::class.java.getResourceAsStream(name).use { input ->
return Unpooled.wrappedBuffer(input.readBytes())
}
}
}