#837 Make COMP-3 with scale factor tests stricter.

Author: yruslan

cobol-parser/src/test/scala/za/co/absa/cobrix/cobol/parser/decoders/BinaryDecoderSpec.scala

@@ -228,22 +228,22 @@ class BinaryDecoderSpec extends AnyFunSuite {
 
   test("Test COMP-3 decimal with scale factor cases") {
     val v1 = BCDNumberDecoders.decodeBigBCDNumber(Array[Byte](0x06.toByte,0x54.toByte,0x7C.toByte), scale = 0, scaleFactor = 0, mandatorySignNibble = true)
-    assert (v1.contains("06547"))
+    assert (v1 == "06547")
 
     val v2 = BCDNumberDecoders.decodeBigBCDNumber(Array[Byte](0x06.toByte,0x54.toByte,0x7C.toByte), scale = 0, scaleFactor = -1, mandatorySignNibble = true)
-    assert (v2.contains("0.006547"))
+    assert (v2 == "0.006547")
 
     val v3 = BCDNumberDecoders.decodeBigBCDNumber(Array[Byte](0x06.toByte,0x54.toByte,0x7C.toByte), scale = 0, scaleFactor = -2, mandatorySignNibble = true)
-    assert (v3.contains("0.0006547"))
+    assert (v3 == "0.0006547")
 
     val v4 = BCDNumberDecoders.decodeBigBCDNumber(Array[Byte](0x06.toByte,0x54.toByte,0x7C.toByte), scale = 5, scaleFactor = -1, mandatorySignNibble = true)
-    assert (v4.contains("0.006547"))
+    assert (v4 == "0.006547")
 
     val v5 = BCDNumberDecoders.decodeBigBCDNumber(Array[Byte](0x06.toByte,0x54.toByte,0x7C.toByte), scale = 5, scaleFactor = -2, mandatorySignNibble = true)
-    assert (v5.contains("0.0006547"))
+    assert (v5 == "0.0006547")
 
     val v6 = BCDNumberDecoders.decodeBigBCDNumber(Array[Byte](0x16.toByte,0x54.toByte,0x7C.toByte), scale = 5, scaleFactor = -2, mandatorySignNibble = true)
-    assert (v6.contains("0.0016547"))
+    assert (v6 == "0.0016547")
   }
 
   test("Test COMP-3U decimal cases") {

spark-cobol/src/test/scala/za/co/absa/cobrix/spark/cobol/source/regression/Test17NumericConversions.scala

@@ -298,8 +298,9 @@ class Test17NumericConversions extends AnyWordSpec with SparkTestBase with Binar
           .load(tmpFileName)
 
         val actualSchema = df.schema.treeString
-        val actualData1 = df.collect()(0).getDecimal(0).toString
-        val actualData2 = df.collect()(0).getDecimal(1).toString
+        val row = df.collect().head
+        val actualData1 = row.getDecimal(0).toString
+        val actualData2 = row.getDecimal(1).toString
 
         "schema should match" in {
           val expectedSchema =