Changes from usage:

* Remove println statements from debugging
* Reorganization testing for platform coverage
* Add a MetaDataTest suite

Author: reidspencer

language/js/src/test/scala/com/ossuminc/riddl/language/parsing/JSTests.scala

@@ -11,6 +11,7 @@ import com.ossuminc.riddl.utils.{pc, ec}
 class JSApplicationParsingTest extends ApplicationParsingTest
 class JSCommonParserTest extends CommonParserTest
 class JSHandlerTest extends HandlerTest
+class JSMetaDataTest extends MetaDataTest
 class JSModuleTest extends ModuleTest
 class JSNebulaTest extends NebulaTest
 class JSParsingTestTest extends ParsingTestTest

language/jvm/src/test/scala/com/ossuminc/riddl/language/parsing/JVMTests.scala

@@ -11,6 +11,7 @@ import com.ossuminc.riddl.utils.{ec, pc}
 class JVMApplicationParsingTest extends ApplicationParsingTest
 class JVMCommonParserTest extends CommonParserTest
 class JVMHandlerTest extends HandlerTest
+class JVMMetaDataTest extends MetaDataTest
 class JVMModuleTest extends ModuleTest
 class JVMNebulaTest extends NebulaTest
 class JVMParsingTestTest extends ParsingTestTest

language/shared/src/test/scala/com/ossuminc/riddl/language/parsing/CommonParserTest.scala

@@ -131,27 +131,6 @@ abstract class CommonParserTest(using PlatformContext) extends AbstractParsingTe
           actual mustBe LiteralString((1, 1, rpi), input.data.drop(1).dropRight(1))
       }
     }
-    "attachments parse correctly" in { (td: TestData) =>
-      val input = RiddlParserInput(
-        """context foo {
-          | ???
-          |} with {
-          |  attachment infile is text/plain in file "nada.txt"
-          |  attachment inline is text/plain as "nada"
-          |}""".stripMargin,
-        td
-      )
-      parseDefinition[Context](input) match {
-        case Left(errors) =>
-          val msg = errors.map(_.format).mkString
-          fail(msg)
-        case Right((context: Context, _)) =>
-          context.stringAttachments.size must be(1)
-          context.stringAttachments.head.value.s must be("nada")
-          context.fileAttachments.size must be(1)
-          context.fileAttachments.head.inFile.s must be("nada.txt")
-      }
-    }
   }
   "NoWhiteSpaceParsers" should {
     "handle a URL" in { (td: TestData) =>

language/shared/src/test/scala/com/ossuminc/riddl/language/parsing/MetaDataTest.scala

@@ -0,0 +1,37 @@
+/*
+ * Copyright 2019-2025 Ossum, Inc.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package com.ossuminc.riddl.language.parsing
+import com.ossuminc.riddl.language.AST.Context
+import com.ossuminc.riddl.utils.PlatformContext
+import org.scalatest.TestData
+
+abstract class MetaDataTest(using PlatformContext) extends AbstractParsingTest {
+
+  "MetaDataParser" should {
+    "parse attachments correctly" in { (td: TestData) =>
+      val input = RiddlParserInput(
+        """context foo {
+          | ???
+          |} with {
+          |  attachment infile is text/plain in file "nada.txt"
+          |  attachment inline is text/plain as "nada"
+          |}""".stripMargin,
+        td
+      )
+      parseDefinition[Context](input) match {
+        case Left(errors) =>
+          val msg = errors.map(_.format).mkString
+          fail(msg)
+        case Right((context: Context, _)) =>
+          context.stringAttachments.size must be(1)
+          context.stringAttachments.head.value.s must be("nada")
+          context.fileAttachments.size must be(1)
+          context.fileAttachments.head.inFile.s must be("nada.txt")
+      }
+    }
+  }
+}

passes/js/src/test/scala/com/ossuminc/riddl/passes/JSTests.scala

@@ -0,0 +1,11 @@
+/*
+ * Copyright 2019-2025 Ossum, Inc.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package com.ossuminc.riddl.passes.diagrams
+
+import com.ossuminc.riddl.utils.pc
+
+class JSDiagramsPassTest extends SharedDiagramsPassTest

passes/js/src/test/scala/com/ossuminc/riddl/passes/diagrams/JSDiagramsPassTest.scala

@@ -4,17 +4,17 @@
  * SPDX-License-Identifier: Apache-2.0
  */
 
-package com.ossuminc.riddl.passes
+package com.ossuminc.riddl.passes.diagrams
 
 import com.ossuminc.riddl.language.AST.*
 import com.ossuminc.riddl.language.Messages
 import com.ossuminc.riddl.language.parsing.RiddlParserInput
 import com.ossuminc.riddl.passes.diagrams.*
-import com.ossuminc.riddl.utils.{PlatformContext, URL}
-import com.ossuminc.riddl.utils.{ec, pc, Await}
+import com.ossuminc.riddl.passes.{Pass, PassesResult}
+import com.ossuminc.riddl.utils.{Await, PlatformContext, URL, ec, pc}
+import org.scalatest.TestData
 
 import scala.concurrent.duration.DurationInt
-import org.scalatest.TestData
 
 class DiagramsPassTest extends SharedDiagramsPassTest {
   "generate diagrams output" in { (td: TestData) =>