Add tests for StringUtils class

Author: junichi11

src/test/java/com/junichi11/netbeans/modules/github/issues/utils/StringUtilsTest.java

@@ -0,0 +1,121 @@
+/*
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
+ *
+ * Copyright 2015 Oracle and/or its affiliates. All rights reserved.
+ *
+ * Oracle and Java are registered trademarks of Oracle and/or its affiliates.
+ * Other names may be trademarks of their respective owners.
+ *
+ * The contents of this file are subject to the terms of either the GNU
+ * General Public License Version 2 only ("GPL") or the Common
+ * Development and Distribution License("CDDL") (collectively, the
+ * "License"). You may not use this file except in compliance with the
+ * License. You can obtain a copy of the License at
+ * http://www.netbeans.org/cddl-gplv2.html
+ * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the
+ * specific language governing permissions and limitations under the
+ * License.  When distributing the software, include this License Header
+ * Notice in each file and include the License file at
+ * nbbuild/licenses/CDDL-GPL-2-CP.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the GPL Version 2 section of the License file that
+ * accompanied this code. If applicable, add the following below the
+ * License Header, with the fields enclosed by brackets [] replaced by
+ * your own identifying information:
+ * "Portions Copyrighted [year] [name of copyright owner]"
+ *
+ * If you wish your version of this file to be governed by only the CDDL
+ * or only the GPL Version 2, indicate your decision by adding
+ * "[Contributor] elects to include this software in this distribution
+ * under the [CDDL or GPL Version 2] license." If you do not indicate a
+ * single choice of license, a recipient has the option to distribute
+ * your version of this file under either the CDDL, the GPL Version 2 or
+ * to extend the choice of license to its licensees as provided above.
+ * However, if you add GPL Version 2 code and therefore, elected the GPL
+ * Version 2 license, then the option applies only if the new code is
+ * made subject to such option by the copyright holder.
+ *
+ * Contributor(s):
+ *
+ * Portions Copyrighted 2015 Sun Microsystems, Inc.
+ */
+package com.junichi11.netbeans.modules.github.issues.utils;
+
+import java.util.Arrays;
+import java.util.Collections;
+import org.junit.After;
+import org.junit.AfterClass;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+import org.junit.Before;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+/**
+ *
+ * @author junichi11
+ */
+public class StringUtilsTest {
+
+    public StringUtilsTest() {
+    }
+
+    @BeforeClass
+    public static void setUpClass() {
+    }
+
+    @AfterClass
+    public static void tearDownClass() {
+    }
+
+    @Before
+    public void setUp() {
+    }
+
+    @After
+    public void tearDown() {
+    }
+
+    /**
+     * Test of isEmpty method, of class StringUtils.
+     */
+    @Test
+    public void testIsEmpty() {
+        assertTrue(StringUtils.isEmpty(null));
+        assertTrue(StringUtils.isEmpty(""));
+
+        assertFalse(StringUtils.isEmpty("test"));
+        assertFalse(StringUtils.isEmpty(" "));
+        assertFalse(StringUtils.isEmpty("apple orange"));
+    }
+
+    /**
+     * Test of join method, of class StringUtils.
+     */
+    @Test
+    public void testJoin() {
+        assertEquals("one,two,three,four,five", StringUtils.join(Arrays.asList("one", "two", "three", "four", "five"), ","));
+        assertEquals("one:two:three:four:five", StringUtils.join(Arrays.asList("one", "two", "three", "four", "five"), ":"));
+        assertEquals("onetwothreefourfive", StringUtils.join(Arrays.asList("one", "two", "three", "four", "five"), ""));
+
+        assertEquals("", StringUtils.join(Collections.<String>emptyList(), ":"));
+        assertEquals("", StringUtils.join(null, ":"));
+        assertEquals("", StringUtils.join(null, null));
+        assertEquals("", StringUtils.join(Arrays.asList("one", "two"), null));
+    }
+
+    /**
+     * Test of toQuoteComment method, of class StringUtils.
+     */
+    @Test
+    public void testToQuoteComment() {
+        assertEquals("> test\n", StringUtils.toQuoteComment("test"));
+        assertEquals("> test\n", StringUtils.toQuoteComment("test"));
+        assertEquals("> one\n> two\n> three\n", StringUtils.toQuoteComment("one\ntwo\nthree"));
+
+        assertEquals("", StringUtils.toQuoteComment(""));
+        assertEquals("", StringUtils.toQuoteComment(null));
+    }
+
+}