stevedlawrence commented on code in PR #1064:
URL: https://github.com/apache/daffodil/pull/1064#discussion_r1284534473


##########
daffodil-japi/src/test/java/org/apache/daffodil/example/TestJavaAPI.java:
##########
@@ -1308,4 +1309,36 @@ public void doXMLTextEscapeStyleTest(String expect, 
String data, String schemaTy
         assertFalse(err);
         assertEquals(expect, value);
     }
+
+    @Test
+    public void testJavaAPIBlob1() throws IOException, ClassNotFoundException, 
InvalidUsageException {
+        org.apache.daffodil.japi.Compiler c = Daffodil.compiler();
+        java.io.File schemaFile = getResource("/test/japi/blob.dfdl.xsd");
+        ProcessorFactory pf = c.compileFile(schemaFile);
+        DataProcessor dp = pf.onPath("/");
+        dp = dp.withValidationMode(ValidationMode.Full);
+
+        byte[] data = new byte[] { 0x00, 0x00, 0x00, 0x04, 0x01, 0x02, 0x03, 
0x04 };
+        ByteArrayInputStream bis = new ByteArrayInputStream(data);
+        InputSourceDataInputStream input = new 
InputSourceDataInputStream(data);
+
+        Path blobRoot = Paths.get(System.getProperty("java.io.tmpdir"), 
"daffodil", "japi");
+        Files.createDirectories(blobRoot);
+        Path blobDir = Files.createTempDirectory(blobRoot, "blob-");
+
+        ByteArrayOutputStream bos = new ByteArrayOutputStream();
+        XMLTextInfosetOutputter output = new XMLTextInfosetOutputter(bos, 
true);
+        output.setBlobAttributes(blobDir, "pre-", ".suf");
+
+        ParseResult res = dp.parse(input, output);
+        assertFalse(res.isError());
+
+        List<Path> blobPaths = 
JavaConverters.seqAsJavaList(output.getBlobPaths());
+        assertTrue(blobPaths.size() == 1);
+        assertTrue(blobPaths.get(0).toString().contains("blob-"));
+        assertTrue(blobPaths.get(0).toString().contains("pre-"));
+        assertTrue(blobPaths.get(0).toString().contains(".suf"));
+        Files.delete(blobPaths.get(0));
+        Files.delete(blobDir);

Review Comment:
   Makes sense, will add.



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