@@ -0,0 +1,70 @@
+package org.javaee7.ejb.stateful;
+
+import org.jboss.arquillian.container.test.api.Deployment;
+import org.jboss.arquillian.junit.Arquillian;
+import org.jboss.arquillian.junit.InSequence;
+import org.jboss.shrinkwrap.api.Archive;
+import org.jboss.shrinkwrap.api.ShrinkWrap;
+import org.jboss.shrinkwrap.api.asset.EmptyAsset;
+import org.jboss.shrinkwrap.api.spec.JavaArchive;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import javax.ejb.EJB;
+
+import static org.hamcrest.CoreMatchers.*;
+import static org.hamcrest.MatcherAssert.*;
+
+/**
+ * @author Jakub Marchwicki
+ */
+@RunWith(Arquillian.class)
+public class CartBeanStatefulnessTest {
+
+    final private String item_to_add = "apple";
+
+    @EJB
+    private CartBean bean1;
+
+    @EJB
+    private CartBean bean2;
+
+	@Deployment
+	public static Archive<?> deployment() {
+		return ShrinkWrap.create(JavaArchive.class, "test.jar")
+				.addClass(CartBean.class)
+				.addAsManifestResource(EmptyAsset.INSTANCE, "beans.xml");
+	}
+
+    /**
+     * JSR 318: Enterprise JavaBeans, Version 3.1
+     * 3.4.7.1 Session Object Identity / Stateful Session Beans
+     *
+     * A stateful session object has a unique identity that is assigned by
+     * the container at the time the object is created. A client of the stateful
+     * session bean business interface can determine if two business interface
+     * or no-interface view references refer to the same session object
+     * by use of the equals method
+     */
+    @Test
+    @InSequence(1)
+    public void should_not_be_identical_beans() {
+        assertThat("Expect different instances", bean1, is(not(bean2)));
+    }
+
+	@Test
+    @InSequence(2)
+	public void should_add_items_to_first_cart() {
+		// when
+		bean1.addItem(item_to_add);
+
+		// then
+		assertThat(bean1.getItems(), hasItem(item_to_add));
+	}
+
+	@Test
+    @InSequence(3)
+	public void should_not_contain_any_items_in_second_cart() {
+		assertThat(bean2.getItems().isEmpty(), is(true));
+	}
+}
@@ -47,11 +47,19 @@
 @Stateless
 public class AccountSessionBean {
 
+    private float amount = 0;
+
     public String withdraw(float amount) {
+        this.amount -= amount;
         return "Withdrawn: " + amount;
     }
 
-    public String deposit(float amount) { 
+    public String deposit(float amount) {
+        this.amount += amount;
         return "Deposited: " + amount;
     }
+
+    public float getAmount() {
+        return this.amount;
+    }
 }
Original file line number	Diff line number	Diff line change
`@@ -47,11 +47,19 @@`
`47`	`47`	`@Stateless`
`48`	`48`	`public class AccountSessionBean {`
`49`	`49`
	`50`	`+ private float amount = 0;`
	`51`	`+`
`50`	`52`	`public String withdraw(float amount) {`
	`53`	`+ this.amount -= amount;`
`51`	`54`	`return "Withdrawn: " + amount;`
`52`	`55`	`}`
`53`	`56`
`54`		`- public String deposit(float amount) {`
	`57`	`+ public String deposit(float amount) {`
	`58`	`+ this.amount += amount;`
`55`	`59`	`return "Deposited: " + amount;`
`56`	`60`	`}`
	`61`	`+`
	`62`	`+ public float getAmount() {`
	`63`	`+ return this.amount;`
	`64`	`+ }`
`57`	`65`	`}`