diff --git a/resource-acquisition-is-initialization/pom.xml b/resource-acquisition-is-initialization/pom.xml
index 133c7f3c1..ff6c3f8c7 100644
--- a/resource-acquisition-is-initialization/pom.xml
+++ b/resource-acquisition-is-initialization/pom.xml
@@ -14,5 +14,10 @@
junit
test
+
+ org.mockito
+ mockito-core
+ test
+
diff --git a/resource-acquisition-is-initialization/src/test/java/com/iluwatar/resource/acquisition/is/initialization/ClosableTest.java b/resource-acquisition-is-initialization/src/test/java/com/iluwatar/resource/acquisition/is/initialization/ClosableTest.java
new file mode 100644
index 000000000..423d0ab51
--- /dev/null
+++ b/resource-acquisition-is-initialization/src/test/java/com/iluwatar/resource/acquisition/is/initialization/ClosableTest.java
@@ -0,0 +1,27 @@
+package com.iluwatar.resource.acquisition.is.initialization;
+
+import org.junit.Test;
+import org.mockito.InOrder;
+
+import static org.mockito.Mockito.inOrder;
+
+/**
+ * Date: 12/28/15 - 9:31 PM
+ *
+ * @author Jeroen Meulemeester
+ */
+public class ClosableTest extends StdOutTest {
+
+ @Test
+ public void testOpenClose() throws Exception {
+ final InOrder inOrder = inOrder(getStdOutMock());
+ try (final SlidingDoor door = new SlidingDoor(); final TreasureChest chest = new TreasureChest()) {
+ inOrder.verify(getStdOutMock()).println("Sliding door opens.");
+ inOrder.verify(getStdOutMock()).println("Treasure chest opens.");
+ }
+ inOrder.verify(getStdOutMock()).println("Treasure chest closes.");
+ inOrder.verify(getStdOutMock()).println("Sliding door closes.");
+ inOrder.verifyNoMoreInteractions();
+ }
+
+}
\ No newline at end of file
diff --git a/resource-acquisition-is-initialization/src/test/java/com/iluwatar/resource/acquisition/is/initialization/StdOutTest.java b/resource-acquisition-is-initialization/src/test/java/com/iluwatar/resource/acquisition/is/initialization/StdOutTest.java
new file mode 100644
index 000000000..2fdc09e27
--- /dev/null
+++ b/resource-acquisition-is-initialization/src/test/java/com/iluwatar/resource/acquisition/is/initialization/StdOutTest.java
@@ -0,0 +1,53 @@
+package com.iluwatar.resource.acquisition.is.initialization;
+
+import org.junit.After;
+import org.junit.Before;
+
+import java.io.PrintStream;
+
+import static org.mockito.Mockito.mock;
+
+/**
+ * Date: 12/10/15 - 8:37 PM
+ *
+ * @author Jeroen Meulemeester
+ */
+public abstract class StdOutTest {
+
+ /**
+ * The mocked standard out {@link PrintStream}, required since some actions don't have any
+ * influence on accessible objects, except for writing to std-out using {@link System#out}
+ */
+ private final PrintStream stdOutMock = mock(PrintStream.class);
+
+ /**
+ * Keep the original std-out so it can be restored after the test
+ */
+ private final PrintStream stdOutOrig = System.out;
+
+ /**
+ * Inject the mocked std-out {@link PrintStream} into the {@link System} class before each test
+ */
+ @Before
+ public void setUp() {
+ System.setOut(this.stdOutMock);
+ }
+
+ /**
+ * Removed the mocked std-out {@link PrintStream} again from the {@link System} class
+ */
+ @After
+ public void tearDown() {
+ System.setOut(this.stdOutOrig);
+ }
+
+ /**
+ * Get the mocked stdOut {@link PrintStream}
+ *
+ * @return The stdOut print stream mock, renewed before each test
+ */
+ final PrintStream getStdOutMock() {
+ return this.stdOutMock;
+ }
+
+}