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134
integration/test/src/bloop/cli/integration/BspTests.scala
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package bloop.cli.integration | ||
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import java.net.{StandardProtocolFamily, UnixDomainSocketAddress} | ||
import java.nio.channels.SocketChannel | ||
import java.nio.charset.StandardCharsets | ||
import java.nio.ByteBuffer | ||
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class BspTests extends munit.FunSuite { | ||
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test("no JSON junk in errors") { | ||
TmpDir.fromTmpDir { root => | ||
val dirArgs = Seq[os.Shellable]("--daemon-dir", root / "daemon") | ||
val bspFile = root / "bsp-socket" | ||
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val dummyMsg = | ||
"""{ | ||
| "jsonrpc": "2.0", | ||
| "method": "workspace/buildTargetz", | ||
| "params": null, | ||
| "id": 2 | ||
|}""".stripMargin | ||
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var bspProc: os.SubProcess = null | ||
var socket: SocketChannel = null | ||
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try { | ||
os.proc(Launcher.launcher, dirArgs, "about") | ||
.call(cwd = root, stdin = os.Inherit, stdout = os.Inherit, env = Launcher.extraEnv) | ||
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bspProc = | ||
os.proc(Launcher.launcher, dirArgs, "bsp", "--protocol", "local", "--socket", bspFile) | ||
.spawn(cwd = root, stdin = os.Inherit, stdout = os.Inherit) | ||
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val addr = UnixDomainSocketAddress.of(bspFile.toNIO) | ||
var connected = false | ||
var attemptCount = 0 | ||
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while (!connected && bspProc.isAlive() && attemptCount < 10) { | ||
if (attemptCount > 0) | ||
Thread.sleep(1000L) | ||
attemptCount += 1 | ||
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if (os.exists(bspFile)) { | ||
socket = SocketChannel.open(StandardProtocolFamily.UNIX) | ||
socket.connect(addr) | ||
socket.finishConnect() | ||
connected = true | ||
} | ||
} | ||
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if (!connected) | ||
sys.error("Not connected to Bloop server via BSP :|") | ||
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def sendMsg(msg: String): Unit = { | ||
val bytes = msg.getBytes(StandardCharsets.UTF_8) | ||
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def doWrite(buf: ByteBuffer): Unit = | ||
if (buf.position() < buf.limit()) { | ||
val written = socket.write(buf) | ||
if (written == 0) | ||
Thread.sleep(100L) | ||
doWrite(buf) | ||
} | ||
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doWrite(ByteBuffer.wrap( | ||
(s"Content-Length: ${bytes.length}" + "\r\n\r\n").getBytes(StandardCharsets.UTF_8) | ||
)) | ||
doWrite(ByteBuffer.wrap(bytes)) | ||
} | ||
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sendMsg(dummyMsg) | ||
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val arr = Array.ofDim[Byte](10 * 1024) | ||
val buf = ByteBuffer.wrap(arr) | ||
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// seems to do the job… | ||
def doRead(buf: ByteBuffer, count: Int): Int = { | ||
val read = socket.read(buf) | ||
if (read <= 0 && count < 100) { | ||
Thread.sleep(100L) | ||
doRead(buf, count + 1) | ||
} | ||
else | ||
read | ||
} | ||
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val read = doRead(buf, 0) | ||
assert(read > 0) | ||
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val resp = new String(arr, 0, read, StandardCharsets.UTF_8) | ||
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def validateJson(content: String): Boolean = { | ||
assert(content.startsWith("{")) | ||
assert(content.endsWith("}")) | ||
val chars = content.toCharArray | ||
val objCount = Array.ofDim[Int](chars.length) | ||
for (i <- 0 until chars.length) { | ||
val previous = if (i == 0) 0 else objCount(i - 1) | ||
val count = previous + (if (chars(i) == '{') 1 else if (chars(i) == '}') -1 else 0) | ||
objCount(i) = count | ||
} | ||
objCount.dropRight(1).forall(_ > 0) | ||
} | ||
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resp.linesWithSeparators.toVector match { | ||
case Seq(cl, empty, other @ _*) | ||
if cl.startsWith("Content-Length:") && empty.trim.isEmpty => | ||
val json = other.mkString | ||
val validated = validateJson(json) | ||
if (!validated) | ||
pprint.err.log(json) | ||
assert(validated, "Unexpected JSON response shape") | ||
case _ => | ||
pprint.err.log(resp) | ||
sys.error("Unexpected response shape") | ||
} | ||
} | ||
finally { | ||
if (socket != null) | ||
socket.close() | ||
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if (bspProc != null) { | ||
bspProc.waitFor(1000L) | ||
if (bspProc.isAlive()) | ||
bspProc.close() | ||
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os.proc(Launcher.launcher, dirArgs, "exit") | ||
.call(cwd = root, stdin = os.Inherit, stdout = os.Inherit, check = false) | ||
} | ||
} | ||
} | ||
} | ||
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} |