Move individual test outputs to own subdir

* each suite now has a subdir
* each test has subdir within suite dir

src/test/scala/DataWidthConverterSuite.scala

@@ -3,6 +3,7 @@ import org.scalatest.junit.JUnitSuite
 import org.junit.Test
 import org.junit.Assert._
 import scala.math._
+import java.nio.file.Paths
 
 /**
  * DataWidthConverterHarness: Attaches data source to DWC.
@@ -114,7 +115,11 @@ class DataWidthConverterSuite extends JUnitSuite {
   def resize(inWidth: Int, outWidth: Int, littleEndian: Boolean = true) = {
     println("testing conversion of %d bit to %d bit, %s ..."
         .format(inWidth, outWidth, if (littleEndian) "little-endian" else "big-endian"))
-    chiselMainTest(Array("--genHarness", "--backend", "c", "--vcd", "--targetDir", "test", "--compile", "--test"),
+    val dir = Paths.get("test")
+                   .resolve("DataWidthConverterSuite")
+                   .resolve("%dto%d%s".format(inWidth, outWidth, if (littleEndian) "le" else "be"))
+                   .toString
+    chiselMainTest(Array("--genHarness", "--backend", "c", "--vcd", "--targetDir", dir, "--compile", "--test"),
         () => Module(new DataWidthConverterHarness(inWidth, outWidth, littleEndian)))
       { m => new DataWidthConverter_OutputCheck(m) }
   }

src/test/scala/DecoupledDataSourceSuite.scala

@@ -44,7 +44,7 @@ class DecoupledDataSourceSuite extends JUnitSuite {
       val width  = Seq(1, (scala.math.random * 64).toInt).max
       val repeat = scala.math.random > 0.5
       println("testing cnt = %d, width = %d, repeat = %b ...".format(cnt, width, repeat))
-      chiselMainTest(Array("--genHarness", "--backend", "c", "--vcd", "--targetDir", "test", "--compile", "--test"),
+      chiselMainTest(Array("--genHarness", "--backend", "c", "--vcd", "--targetDir", "test/DecoupledDataSourceSuite/checkRandomOutputs", "--compile", "--test"),
           () => Module(new DecoupledDataSource(UInt(width = width), cnt, i => UInt((scala.math.random * scala.math.pow(2, width)).toInt), repeat)))
         { m => new DecoupledDataSource_OutputCheck(m) }
     }
@@ -52,14 +52,14 @@ class DecoupledDataSourceSuite extends JUnitSuite {
 
   /** Performs test for 8bit wide sequential data with repeat. **/
   @Test def checkSequentialOutputsWithRepeat {
-    chiselMainTest(Array("--genHarness", "--backend", "c", "--vcd", "--targetDir", "test", "--compile", "--test"),
+    chiselMainTest(Array("--genHarness", "--backend", "c", "--vcd", "--targetDir", "test/DecoupledDataSourceSuite/checkSequentialOutputsWithRepeat", "--compile", "--test"),
       () => Module(new DecoupledDataSource(UInt(width = 8), 256, i => UInt(i), true)))
       { m => new DecoupledDataSource_OutputCheck(m) }
   }
 
   /** Performs test for 8bit wide sequential data without repeat. **/
   @Test def checkSequentialOutputsWithoutRepeat {
-    chiselMainTest(Array("--genHarness", "--backend", "c", "--vcd", "--targetDir", "test", "--compile", "--test"),
+    chiselMainTest(Array("--genHarness", "--backend", "c", "--vcd", "--targetDir", "test/DecoupledDataSourceSuite/checkSequentialOutputWithoutRepeat", "--compile", "--test"),
       () => Module(new DecoupledDataSource(UInt(width = 8), 256, i => UInt(i), false)))
       { m => new DecoupledDataSource_OutputCheck(m) }
   }