Format code with scalafmt and fix scalafmt configuration

- Fix .scalafmt.conf with version 3.9.8 and scala213 dialect
- Format Scala test code according to project style
- Maintain 180 character line limit and alignment style

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <[email protected]>

Author: xerial

.scalafmt.conf

@@ -1,3 +1,5 @@
+version = 3.9.8
+runner.dialect = scala213
 maxColumn = 180
 style = defaultWithAlign
 optIn.breaksInsideChains = true

msgpack-core/src/test/scala/org/msgpack/core/InvalidDataReadTest.scala

@@ -3,8 +3,7 @@ package org.msgpack.core
 import org.msgpack.core.MessagePackSpec.createMessagePackData
 import wvlet.airspec.AirSpec
 
-/**
-  */
+/** */
 class InvalidDataReadTest extends AirSpec {
 
   test("Reading long EXT32") {

msgpack-core/src/test/scala/org/msgpack/core/MessageFormatTest.scala

@@ -22,8 +22,7 @@ import wvlet.airspec.spi.AirSpecException
 
 import scala.util.Random
 
-/**
-  * Created on 2014/05/07.
+/** Created on 2014/05/07.
   */
 class MessageFormatTest extends AirSpec with Benchmark {
   test("MessageFormat") {

msgpack-core/src/test/scala/org/msgpack/core/MessagePackSpec.scala

@@ -21,7 +21,7 @@ import wvlet.log.io.{TimeReport, Timer}
 import java.io.ByteArrayOutputStream
 
 object MessagePackSpec {
-  def toHex(arr: Array[Byte]) = arr.map(x => f"$x%02x").mkString(" ")
+  def toHex(arr: Array[Byte])                                      = arr.map(x => f"$x%02x").mkString(" ")
   def createMessagePackData(f: MessagePacker => Unit): Array[Byte] = {
     val b      = new ByteArrayOutputStream()
     val packer = MessagePack.newDefaultPacker(b)

msgpack-core/src/test/scala/org/msgpack/core/MessagePackTest.scala

@@ -30,8 +30,7 @@ import java.nio.charset.{CodingErrorAction, UnmappableCharacterException}
 import java.time.Instant
 import scala.util.Random
 
-/**
-  * Created on 2014/05/07.
+/** Created on 2014/05/07.
   */
 class MessagePackTest extends AirSpec with PropertyCheck with Benchmark {
 
@@ -396,7 +395,7 @@ class MessagePackTest extends AirSpec with PropertyCheck with Benchmark {
   test("report errors when packing/unpacking malformed strings") {
     pending("We need to produce malformed utf-8 strings in Java 8")
     // Create 100 malformed UTF8 Strings
-    val r = new Random(0)
+    val r                = new Random(0)
     val malformedStrings = Iterator
       .continually {
         val b = new Array[Byte](10)
@@ -433,7 +432,7 @@ class MessagePackTest extends AirSpec with PropertyCheck with Benchmark {
   test("report errors when packing/unpacking strings that contain unmappable characters") {
 
     val unmappable = Array[Byte](0xfc.toByte, 0x0a.toByte)
-    //val unmappableChar = Array[Char](new Character(0xfc0a).toChar)
+    // val unmappableChar = Array[Char](new Character(0xfc0a).toChar)
 
     // Report error on unmappable character
     val unpackerConfig = new UnpackerConfig()
@@ -534,10 +533,9 @@ class MessagePackTest extends AirSpec with PropertyCheck with Benchmark {
         m,
         { packer =>
           packer.packMapHeader(v.length)
-          m.map {
-            case (k: Int, v: String) =>
-              packer.packInt(k)
-              packer.packString(v)
+          m.map { case (k: Int, v: String) =>
+            packer.packInt(k)
+            packer.packString(v)
           }
         },
         { unpacker =>
@@ -666,13 +664,14 @@ class MessagePackTest extends AirSpec with PropertyCheck with Benchmark {
     val posLong = Gen.chooseNum[Long](-31557014167219200L, 31556889864403199L)
     forAll(posLong) { (millis: Long) =>
       val v = Instant.ofEpochMilli(millis)
-      check(v, { _.packTimestamp(millis) },
+      check(
+        v,
+        { _.packTimestamp(millis) },
         { u =>
           val extHeader = u.unpackExtensionTypeHeader()
-          if(extHeader.isTimestampType) {
+          if (extHeader.isTimestampType) {
             u.unpackTimestamp(extHeader)
-          }
-          else {
+          } else {
             fail("Cannot reach here")
           }
         }

msgpack-core/src/test/scala/org/msgpack/core/MessagePackerTest.scala

@@ -24,8 +24,7 @@ import wvlet.log.io.IOUtil.withResource
 import java.io.{ByteArrayOutputStream, File, FileInputStream, FileOutputStream}
 import scala.util.Random
 
-/**
-  */
+/** */
 class MessagePackerTest extends AirSpec with Benchmark {
 
   private def verifyIntSeq(answer: Array[Int], packed: Array[Byte]): Unit = {
@@ -141,8 +140,8 @@ class MessagePackerTest extends AirSpec with Benchmark {
         32 -> 31,
         34 -> 32
       )
-      testCases.foreach {
-        case (bufferSize, stringSize) => test(bufferSize, stringSize)
+      testCases.foreach { case (bufferSize, stringSize) =>
+        test(bufferSize, stringSize)
       }
     }
 
@@ -234,7 +233,7 @@ class MessagePackerTest extends AirSpec with Benchmark {
   }
 
   test("compute totalWrittenBytes") {
-    val out = new ByteArrayOutputStream
+    val out                     = new ByteArrayOutputStream
     val packerTotalWrittenBytes =
       withResource(MessagePack.newDefaultPacker(out)) { packer =>
         packer
@@ -255,7 +254,7 @@ class MessagePackerTest extends AirSpec with Benchmark {
   test("support read-only buffer") {
     val payload = Array[Byte](1)
     val out     = new ByteArrayOutputStream()
-    val packer = MessagePack
+    val packer  = MessagePack
       .newDefaultPacker(out)
       .packBinaryHeader(1)
       .writePayload(payload)
@@ -299,14 +298,14 @@ class MessagePackerTest extends AirSpec with Benchmark {
 
   test("write raw binary") {
     val packer = new MessagePack.PackerConfig().newBufferPacker()
-    val msg =
+    val msg    =
       Array[Byte](-127, -92, 116, 121, 112, 101, -92, 112, 105, 110, 103)
     packer.writePayload(msg)
   }
 
   test("append raw binary") {
     val packer = new MessagePack.PackerConfig().newBufferPacker()
-    val msg =
+    val msg    =
       Array[Byte](-127, -92, 116, 121, 112, 101, -92, 112, 105, 110, 103)
     packer.addPayload(msg)
   }

msgpack-core/src/test/scala/org/msgpack/core/MessageUnpackerTest.scala

@@ -30,7 +30,7 @@ import scala.util.Random
 
 object MessageUnpackerTest {
   class SplitMessageBufferInput(array: Array[Array[Byte]]) extends MessageBufferInput {
-    var cursor = 0
+    var cursor                         = 0
     override def next(): MessageBuffer = {
       if (cursor < array.length) {
         val a = array(cursor)
@@ -49,7 +49,7 @@ import org.msgpack.core.MessageUnpackerTest._
 
 class MessageUnpackerTest extends AirSpec with Benchmark {
 
-  private val universal = MessageBuffer.allocate(0).isInstanceOf[MessageBufferU]
+  private val universal             = MessageBuffer.allocate(0).isInstanceOf[MessageBufferU]
   private def testData: Array[Byte] = {
     val out    = new ByteArrayOutputStream()
     val packer = MessagePack.newDefaultPacker(out)

msgpack-core/src/test/scala/org/msgpack/core/buffer/MessageBufferInputTest.scala

@@ -33,7 +33,7 @@ class MessageBufferInputTest extends AirSpec {
     Seq(0, 10, 500, 1000, 2000, 4000, 8000, 10000, 30000, 50000, 100000)
 
   private def testData(size: Int): Array[Byte] = {
-    //debug(s"test data size: ${size}")
+    // debug(s"test data size: ${size}")
     val b = new Array[Byte](size)
     Random.nextBytes(b)
     b

msgpack-core/src/test/scala/org/msgpack/core/buffer/MessageBufferTest.scala

@@ -21,8 +21,7 @@ import wvlet.airspec.AirSpec
 import java.nio.ByteBuffer
 import scala.util.Random
 
-/**
-  * Created on 2014/05/01.
+/** Created on 2014/05/01.
   */
 class MessageBufferTest extends AirSpec with Benchmark {
 

msgpack-core/src/test/scala/org/msgpack/core/example/MessagePackExampleTest.scala

@@ -17,8 +17,7 @@ package org.msgpack.core.example
 
 import wvlet.airspec.AirSpec
 
-/**
-  */
+/** */
 class MessagePackExampleTest extends AirSpec {
 
   test("example") {