Both DataBlock.rd and DataBlock.wr inherits byte order from the source byte buffer.

Author: js-labs

build.xml

@@ -36,7 +36,7 @@
         <sequential>
             <property name="testName" value=""/>
             <get-test-name propertyName="testName"/>
-            <java classname="org.jsl.tests.${testName}.Main" fork="true">
+            <java classname="org.jsl.tests.${testName}.Main" fork="true" failonerror="true">
                 <classpath>
                     <pathelement location="${build}/classes"/>
                     <pathelement location="${build}/tests"/>

src/main/java/org/jsl/collider/DataBlock.java

@@ -31,6 +31,7 @@ public DataBlock(ByteBuffer buf)
     {
         wr = buf;
         rd = buf.duplicate();
+        rd.order(buf.order());
     }
 
     public final DataBlock reset()

tests/src/org/jsl/tests/unit/Main.java

@@ -22,6 +22,10 @@
 import java.nio.ByteOrder;
 import org.jsl.collider.DataBlock;
 
+interface TestFunc {
+    void run() throws Exception;
+}
+
 public class Main {
     private static void dataBlockInheritsByteOrder() throws Exception {
         final ByteOrder [] orders = {ByteOrder.LITTLE_ENDIAN, ByteOrder.BIG_ENDIAN};
@@ -38,13 +42,20 @@ private static void dataBlockInheritsByteOrder() throws Exception {
         }
     }
 
-    public static void main(String [] args) {
-        int failedTests = 0;
-        try { dataBlockInheritsByteOrder(); }
-        catch (final Exception ex) {
+    private static int runTest(TestFunc testFunc) {
+        try {
+            testFunc.run();
+            return 0;
+        } catch (final Exception ex) {
             System.out.println(ex.getMessage());
-            failedTests++;
+            return 1;
         }
+    }
+
+    public static void main(String [] args) {
+        int failedTests = 0;
+        failedTests += runTest(Main::dataBlockInheritsByteOrder);
         System.out.println(failedTests + " tests failed");
+        System.exit((failedTests == 0) ? 0 : -1);
     }
 }

tests/tests.iml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="true" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+    <orderEntry type="module" module-name="js-collider" />
+  </component>
+</module>