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Diffstat (limited to 'org.eclipse.vex.core.tests/src/org/eclipse/wst/xml/vex/core/internal/dom/TextWrapperTest.java')
-rw-r--r--org.eclipse.vex.core.tests/src/org/eclipse/wst/xml/vex/core/internal/dom/TextWrapperTest.java109
1 files changed, 109 insertions, 0 deletions
diff --git a/org.eclipse.vex.core.tests/src/org/eclipse/wst/xml/vex/core/internal/dom/TextWrapperTest.java b/org.eclipse.vex.core.tests/src/org/eclipse/wst/xml/vex/core/internal/dom/TextWrapperTest.java
new file mode 100644
index 00000000..de1bbbc3
--- /dev/null
+++ b/org.eclipse.vex.core.tests/src/org/eclipse/wst/xml/vex/core/internal/dom/TextWrapperTest.java
@@ -0,0 +1,109 @@
+/*******************************************************************************
+ * Copyright (c) 2004, 2008 John Krasnay and others.
+ * 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:
+ * John Krasnay - initial API and implementation
+ * Igor Jacy Lino Campista - Java 5 warnings fixed (bug 311325)
+ *******************************************************************************/
+package org.eclipse.wst.xml.vex.core.internal.dom;
+
+import org.eclipse.wst.xml.vex.core.internal.dom.TextWrapper;
+
+import junit.framework.TestCase;
+
+/**
+ * Test the TextWrapper class.
+ */
+public class TextWrapperTest extends TestCase {
+
+ public void testWrap() {
+ String[] results;
+ String[] inputs;
+ TextWrapper wrapper = new TextWrapper();
+
+ results = wrapper.wrap(40);
+ assertEquals(0, results.length);
+
+ inputs = new String[] {
+ "Here ",
+ "are ",
+ "some ",
+ "short ",
+ "words ",
+ "and here are some long ones. We make sure we have some short stuff and some long stuff, just to make sure it all wraps." };
+
+ for (String input : inputs) {
+ wrapper.add(input);
+ }
+ results = wrapper.wrap(40);
+ assertWidth(results, 40);
+ assertPreserved(inputs, results);
+
+ wrapper.clear();
+ results = wrapper.wrap(40);
+ assertEquals(0, results.length);
+
+ String s1 = "yabba ";
+ String s3 = "yabba yabba yabba ";
+ wrapper.add(s1);
+ wrapper.addNoSplit(s3);
+ wrapper.addNoSplit(s3);
+ wrapper.add(s1);
+ results = wrapper.wrap(18);
+ assertEquals(4, results.length);
+ assertEquals(s1, results[0]);
+ assertEquals(s3, results[1]);
+ assertEquals(s3, results[2]);
+ assertEquals(s1, results[3]);
+ }
+
+ /**
+ * Ensure the two string arrays represent the same run of text after all
+ * elements are concatenated.
+ */
+ private void assertPreserved(String[] inputs, String[] results) {
+ StringBuffer inputSB = new StringBuffer();
+ StringBuffer resultSB = new StringBuffer();
+ for (String input : inputs) {
+ inputSB.append(input);
+ }
+ for (String result : results) {
+ resultSB.append(result);
+ }
+ assertEquals(inputSB.toString(), resultSB.toString());
+ }
+
+ /**
+ * Ensure all lines fit within the given width, and that adding an extra
+ * token from the next line would blow it.
+ */
+ private void assertWidth(String[] results, int width) {
+ for (int i = 0; i < results.length; i++) {
+ assertTrue(results[i].length() > 0);
+ assertTrue(results[i].length() <= width);
+ if (i < results.length - 1) {
+ assertTrue(results[i].length()
+ + getToken(results[i + 1]).length() > width);
+ }
+ }
+ }
+
+ /**
+ * Get a token from a string.
+ */
+ private String getToken(String s) {
+ int i = 0;
+ while (i < s.length() && !Character.isWhitespace(s.charAt(i))) {
+ i++;
+ }
+ while (i < s.length() && Character.isWhitespace(s.charAt(i))) {
+ i++;
+ }
+ return s.substring(0, i);
+ }
+
+}

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