Add unit test for the incorrect CSV line

framework/arcane-framework/src/main/scala/models/cdm/CdmParser.scala

@@ -28,6 +28,9 @@ object CSVParser:
           case _ => Some(line.slice(from = fromIndex, until = currentPosition))
 
     def scanLine(charIndex: Int, quoteSum: Int, prevCharIndex: Int): IndexedSeq[Option[String]] = {
+      if charIndex >= line.length then
+        throw new IllegalStateException(s"Failed to split a CSV line $line with delimiter $delimiter into a value sequence")
+
       line(charIndex) match
         // recursive case in a quoted line - opening quote - move on
         case '"' if charIndex < line.length && quoteSum == 0 =>

framework/arcane-framework/src/test/scala/models/CdmParserTests.scala

@@ -21,9 +21,22 @@ class CdmParserTests extends AnyFlatSpec with Matchers {
     ("5637144576,\"NFO\",,0,", Seq(Some("5637144576"), Some("NFO"), None, Some("0"), None))
   )
 
+  private val invalidCsvlines = Table(
+    ("line", "result"),
+    ("\"q\",\",\"1321\"", Seq())
+  )
+
   it should "handle valid quoted CSV lines correctly" in {
     forAll (validCsvLines) { (line, result) =>
       CSVParser.parseCsvLine(line) should equal(result)
     }
   }
+
+  it should "handle invalid quoted CSV lines correctly" in {
+    forAll (invalidCsvlines) { (line, _) =>
+      intercept[IllegalStateException] {
+        CSVParser.parseCsvLine(line)
+      }
+    }
+  }
 }