Fix tests for kaitai-io/kaitai_struct_compiler#197

Author: Mingun

spec/java/src/io/kaitai/struct/spec/TestDebug0.java

@@ -1,12 +1,17 @@
 package io.kaitai.struct.spec;
 
+import io.kaitai.struct.ArrayRegion;
+import io.kaitai.struct.PositionInfo;
+import io.kaitai.struct.Region;
 import io.kaitai.struct.testformats.Debug0;
 import org.testng.annotations.Test;
 
 import java.util.ArrayList;
 import java.util.Arrays;
 
 import static org.testng.Assert.assertEquals;
+import static org.testng.Assert.assertFalse;
+import static org.testng.Assert.assertTrue;
 
 public class TestDebug0 extends CommonSpec {
     @Test
@@ -19,12 +24,30 @@ public void testDebug0() throws Exception {
 
         assertEquals(Debug0._seqFields, new String[] { "one", "arrayOfInts", "_unnamed2" });
 
-        assertEquals(r._attrStart.get("one").intValue(), 0);
-        assertEquals(r._attrEnd.get("one").intValue(), 1);
-        assertEquals(r._attrStart.get("arrayOfInts").intValue(), 1);
-        assertEquals(r._attrEnd.get("arrayOfInts").intValue(), 4);
+        assertTrue(r instanceof PositionInfo, "Structure in debug mode should implement PositionInfo");
+        assertEquals(r._regions().size(), 3, "Position information should exists for each field");
 
-        assertEquals(r._arrStart.get("arrayOfInts").toArray(), new Integer[] { 1, 2, 3 });
-        assertEquals(r._arrEnd.get("arrayOfInts").toArray(), new Integer[] { 2, 3, 4 });
+        final Region oneRegion = r._regions().get("one");
+        assertFalse(oneRegion instanceof ArrayRegion, "Non-Array region shouldn't be instanceof ArrayRegion");
+        assertEquals(oneRegion.start, 0);
+        assertEquals(oneRegion.end,   1);
+
+        final Region arrayRegion = r._regions().get("arrayOfInts");
+        assertEquals(arrayRegion.start, 1);
+        assertEquals(arrayRegion.end, 4);
+
+        assertTrue(arrayRegion instanceof ArrayRegion, "Array region should be instanceof ArrayRegion");
+
+        final ArrayRegion array = (ArrayRegion)arrayRegion;
+        assertEquals(array.items.size(), 3);
+
+        final long[] starts = { 1, 2, 3 };
+        final long[] ends   = { 2, 3, 4 };
+        int i = 0;
+        for (final Region region : array.items) {
+            assertEquals(region.start, starts[i]);
+            assertEquals(region.end,   ends[i]);
+            ++i;
+        }
     }
 }