New test for h5ex_d.

Author: karlnicholas

src/test/java/org/hdf5javalib/examples/h5ex_d/H5exDReadTest.java

@@ -28,16 +28,6 @@ private int[][] toIntMatrix(HdfData[][] data) {
         return res;
     }
 
-    private double[][] toDoubleMatrix(HdfData[][] data) {
-        double[][] res = new double[data.length][data[0].length];
-        for (int i = 0; i < data.length; i++) {
-            for (int j = 0; j < data[i].length; j++) {
-                res[i][j] = data[i][j].getInstance(Double.class);
-            }
-        }
-        return res;
-    }
-
     private BigDecimal[][] toBigDecimalMatrix(HdfData[][] data) {
         BigDecimal[][] res = new BigDecimal[data.length][data[0].length];
         for (int i = 0; i < data.length; i++) {
@@ -121,22 +111,23 @@ void testCompact() throws Exception {
     void testExtern() throws Exception {
         try (SeekableByteChannel channel = ResourceLoader.loadResourceAsChannel("h5ex_d/h5ex_d_extern.h5")) {
             HdfFileReader reader = new HdfFileReader(channel).readFile();
-            HdfDataset dataSet = reader.getDataset("/DS1").orElseThrow();
-            DataLayoutMessage layout = dataSet.getObjectHeader().findMessageByType(DataLayoutMessage.class).orElseThrow();
-            assertInstanceOf(DataLayoutMessage.ContiguousStorage.class, layout.getDataLayoutStorage());
-            DataLayoutMessage.ContiguousStorage cont = (DataLayoutMessage.ContiguousStorage) layout.getDataLayoutStorage();
-            assertTrue(cont.getDataAddress().isUndefined());
-            ExternalDataFilesMessage external = dataSet.getObjectHeader().getHeaderMessages().stream()
-                    .filter(m -> m instanceof ExternalDataFilesMessage)
-                    .map(ExternalDataFilesMessage.class::cast)
-                    .findFirst().orElse(null);
-            assertNotNull(external);
-            assertEquals(1, external.getUsedSlots());
-            List<ExternalDataFilesMessage.SlotDefinition> slots = external.getSlotDefinitions();
-            assertEquals(1, slots.size());
-            assertEquals(8, slots.get(0).nameOffset().getInstance(Long.class).intValue());
-            assertEquals(0, slots.get(0).fileOffset().getInstance(Long.class).intValue());
-            assertTrue(slots.get(0).dataSize().isUndefined());
+            try (HdfDataset dataSet = reader.getDataset("/DS1").orElseThrow() ) {
+                DataLayoutMessage layout = dataSet.getObjectHeader().findMessageByType(DataLayoutMessage.class).orElseThrow();
+                assertInstanceOf(DataLayoutMessage.ContiguousStorage.class, layout.getDataLayoutStorage());
+                DataLayoutMessage.ContiguousStorage cont = (DataLayoutMessage.ContiguousStorage) layout.getDataLayoutStorage();
+                assertTrue(cont.getDataAddress().isUndefined());
+                ExternalDataFilesMessage external = dataSet.getObjectHeader().getHeaderMessages().stream()
+                        .filter(m -> m instanceof ExternalDataFilesMessage)
+                        .map(ExternalDataFilesMessage.class::cast)
+                        .findFirst().orElse(null);
+                assertNotNull(external);
+                assertEquals(1, external.getUsedSlots());
+                List<ExternalDataFilesMessage.SlotDefinition> slots = external.getSlotDefinitions();
+                assertEquals(1, slots.size());
+                assertEquals(8, slots.get(0).nameOffset().getInstance(Long.class).intValue());
+                assertEquals(0, slots.get(0).fileOffset().getInstance(Long.class).intValue());
+                assertTrue(slots.get(0).dataSize().isUndefined());
+            }
         }
     }