1 files changed, 118 insertions, 0 deletions
diff --git a/jpa/tests/org.eclipse.jpt.utility.tests/src/org/eclipse/jpt/utility/tests/internal/iterators/ReadOnlyIteratorTests.java b/jpa/tests/org.eclipse.jpt.utility.tests/src/org/eclipse/jpt/utility/tests/internal/iterators/ReadOnlyIteratorTests.java
new file mode 100644
index 0000000000..4defa2e414
--- /dev/null
+++ b/jpa/tests/org.eclipse.jpt.utility.tests/src/org/eclipse/jpt/utility/tests/internal/iterators/ReadOnlyIteratorTests.java
@@ -0,0 +1,118 @@
+/*******************************************************************************
+ * Copyright (c) 2005, 2007 Oracle. All rights reserved.
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v1.0, which accompanies this distribution
+ * and is available at http://www.eclipse.org/legal/epl-v10.html.
+ * 
+ * Contributors:
+ *     Oracle - initial API and implementation
+ ******************************************************************************/
+package org.eclipse.jpt.utility.tests.internal.iterators;
+
+import java.util.Iterator;
+import java.util.NoSuchElementException;
+import java.util.Vector;
+import junit.framework.TestCase;
+import org.eclipse.jpt.utility.internal.iterators.ReadOnlyIterator;
+
+public class ReadOnlyIteratorTests extends TestCase {
+
+	public ReadOnlyIteratorTests(String name) {
+		super(name);
+	}
+
+	public void testHasNext() {
+		int i = 0;
+		for (Iterator<String> stream = this.buildReadOnlyIterator(); stream.hasNext();) {
+			stream.next();
+			i++;
+		}
+		assertEquals(this.buildVector().size(), i);
+	}
+
+	public void testHasNextUpcast() {
+		int i = 0;
+		for (Iterator<Object> stream = this.buildReadOnlyIteratorUpcast(); stream.hasNext();) {
+			stream.next();
+			i++;
+		}
+		assertEquals(this.buildVector().size(), i);
+	}
+
+	public void testNext() {
+		Iterator<String> nestedIterator = this.buildNestedIterator();
+		for (Iterator<String> stream = this.buildReadOnlyIterator(); stream.hasNext();) {
+			assertEquals("bogus element", nestedIterator.next(), stream.next());
+		}
+	}
+
+	public void testNextUpcast() {
+		Iterator<String> nestedIterator = this.buildNestedIterator();
+		for (Iterator<Object> stream = this.buildReadOnlyIteratorUpcast(); stream.hasNext();) {
+			assertEquals("bogus element", nestedIterator.next(), stream.next());
+		}
+	}
+
+	public void testNoSuchElementException() {
+		boolean exCaught = false;
+		Iterator<String> stream = this.buildReadOnlyIterator();
+		String string = null;
+		while (stream.hasNext()) {
+			string = stream.next();
+		}
+		try {
+			string = stream.next();
+		} catch (NoSuchElementException ex) {
+			exCaught = true;
+		}
+		assertTrue("NoSuchElementException not thrown: " + string, exCaught);
+	}
+
+	public void testRemove() {
+		boolean exCaught = false;
+		for (Iterator<String> stream = this.buildReadOnlyIterator(); stream.hasNext();) {
+			if (stream.next().equals("three")) {
+				try {
+					stream.remove();
+				} catch (UnsupportedOperationException ex) {
+					exCaught = true;
+				}
+			}
+		}
+		assertTrue("UnsupportedOperationException not thrown", exCaught);
+	}
+
+	private Iterator<String> buildReadOnlyIterator() {
+		return this.buildReadOnlyIterator(this.buildNestedIterator());
+	}
+
+	private Iterator<Object> buildReadOnlyIteratorUpcast() {
+		return this.buildReadOnlyIteratorUpcast(this.buildNestedIterator());
+	}
+
+	private Iterator<String> buildReadOnlyIterator(Iterator<String> nestedIterator) {
+		return new ReadOnlyIterator<String>(nestedIterator);
+	}
+
+	private Iterator<Object> buildReadOnlyIteratorUpcast(Iterator<String> nestedIterator) {
+		return new ReadOnlyIterator<Object>(nestedIterator);
+	}
+
+	private Iterator<String> buildNestedIterator() {
+		return this.buildVector().iterator();
+	}
+
+	private Vector<String> buildVector() {
+		Vector<String> v = new Vector<String>();
+		v.addElement("one");
+		v.addElement("two");
+		v.addElement("three");
+		v.addElement("four");
+		v.addElement("five");
+		v.addElement("six");
+		v.addElement("seven");
+		v.addElement("eight");
+		return v;
+	}
+
+}