--- /dev/null
+package org.apache.lucene.queryParser.ext;
+
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import org.apache.lucene.util.LuceneTestCase;
+
+/**
+ * Testcase for the {@link Extensions} class
+ */
+public class TestExtensions extends LuceneTestCase {
+
+ private Extensions ext;
+
+ @Override
+ public void setUp() throws Exception {
+ super.setUp();
+ this.ext = new Extensions();
+ }
+
+ public void testBuildExtensionField() {
+ assertEquals("field\\:key", ext.buildExtensionField("key", "field"));
+ assertEquals("\\:key", ext.buildExtensionField("key"));
+
+ ext = new Extensions('.');
+ assertEquals("field.key", ext.buildExtensionField("key", "field"));
+ assertEquals(".key", ext.buildExtensionField("key"));
+ }
+
+ public void testSplitExtensionField() {
+ assertEquals("field\\:key", ext.buildExtensionField("key", "field"));
+ assertEquals("\\:key", ext.buildExtensionField("key"));
+
+ ext = new Extensions('.');
+ assertEquals("field.key", ext.buildExtensionField("key", "field"));
+ assertEquals(".key", ext.buildExtensionField("key"));
+ }
+
+ public void testAddGetExtension() {
+ ParserExtension extension = new ExtensionStub();
+ assertNull(ext.getExtension("foo"));
+ ext.add("foo", extension);
+ assertSame(extension, ext.getExtension("foo"));
+ ext.add("foo", null);
+ assertNull(ext.getExtension("foo"));
+ }
+
+ public void testGetExtDelimiter() {
+ assertEquals(Extensions.DEFAULT_EXTENSION_FIELD_DELIMITER, this.ext
+ .getExtensionFieldDelimiter());
+ ext = new Extensions('?');
+ assertEquals('?', this.ext.getExtensionFieldDelimiter());
+ }
+
+ public void testEscapeExtension() {
+ assertEquals("abc\\:\\?\\{\\}\\[\\]\\\\\\(\\)\\+\\-\\!\\~", ext
+ .escapeExtensionField("abc:?{}[]\\()+-!~"));
+ try {
+ ext.escapeExtensionField(null);
+ fail("should throw NPE - escape string is null");
+ } catch (NullPointerException e) {
+ //
+ }
+ }
+}