Add test case for sending and receiving chunked messages.

agrirouter-sdk-java-tests/src/test/java/com/dke/data/agrirouter/test/helper/ContentReader.java

@@ -0,0 +1,36 @@
+package com.dke.data.agrirouter.test.helper;
+
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.util.Base64;
+
+/**
+ * Generic content reader for the testcases.
+ */
+public class ContentReader {
+
+    private static final String FOLDER = "./message-content/";
+
+    public static String readBase64EncodedMessageContent(Identifier identifier) throws Throwable {
+        Path path = Paths.get(FOLDER.concat(identifier.getFileName()));
+        final byte[] rawData = Files.readAllBytes(path);
+        return new String(Base64.getEncoder().encode(rawData));
+    }
+
+    public enum Identifier {
+        BIG_TASK_DATA("big_taskdata.zip"),
+        SMALL_TASK_DATA("small_taskdata.zip");
+
+        private final String fileName;
+
+        Identifier(String fileName) {
+            this.fileName = fileName;
+        }
+
+        public String getFileName() {
+            return fileName;
+        }
+    }
+
+}