--- /dev/null
+package org.apache.lucene.util;
+
+/**
+ * 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 java.io.IOException;
+import java.io.Reader;
+import java.io.StringReader;
+
+import org.apache.lucene.util.CharacterUtils.CharacterBuffer;
+import org.junit.Test;
+
+/**
+ * TestCase for the {@link CharacterUtils} class.
+ */
+public class TestCharacterUtils extends LuceneTestCase {
+
+ @Test
+ public void testCodePointAtCharArrayInt() {
+ CharacterUtils java4 = CharacterUtils.getInstance(Version.LUCENE_30);
+ char[] cpAt3 = "Abc\ud801\udc1c".toCharArray();
+ char[] highSurrogateAt3 = "Abc\ud801".toCharArray();
+ assertEquals((int) 'A', java4.codePointAt(cpAt3, 0));
+ assertEquals((int) '\ud801', java4.codePointAt(cpAt3, 3));
+ assertEquals((int) '\ud801', java4.codePointAt(highSurrogateAt3, 3));
+ try {
+ java4.codePointAt(highSurrogateAt3, 4);
+ fail("array index out of bounds");
+ } catch (IndexOutOfBoundsException e) {
+ }
+
+ CharacterUtils java5 = CharacterUtils.getInstance(TEST_VERSION_CURRENT);
+ assertEquals((int) 'A', java5.codePointAt(cpAt3, 0));
+ assertEquals(Character.toCodePoint('\ud801', '\udc1c'), java5.codePointAt(
+ cpAt3, 3));
+ assertEquals((int) '\ud801', java5.codePointAt(highSurrogateAt3, 3));
+ try {
+ java5.codePointAt(highSurrogateAt3, 4);
+ fail("array index out of bounds");
+ } catch (IndexOutOfBoundsException e) {
+ }
+ }
+
+ @Test
+ public void testCodePointAtCharSequenceInt() {
+ CharacterUtils java4 = CharacterUtils.getInstance(Version.LUCENE_30);
+ String cpAt3 = "Abc\ud801\udc1c";
+ String highSurrogateAt3 = "Abc\ud801";
+ assertEquals((int) 'A', java4.codePointAt(cpAt3, 0));
+ assertEquals((int) '\ud801', java4.codePointAt(cpAt3, 3));
+ assertEquals((int) '\ud801', java4.codePointAt(highSurrogateAt3, 3));
+ try {
+ java4.codePointAt(highSurrogateAt3, 4);
+ fail("string index out of bounds");
+ } catch (IndexOutOfBoundsException e) {
+ }
+
+ CharacterUtils java5 = CharacterUtils.getInstance(TEST_VERSION_CURRENT);
+ assertEquals((int) 'A', java5.codePointAt(cpAt3, 0));
+ assertEquals(Character.toCodePoint('\ud801', '\udc1c'), java5.codePointAt(
+ cpAt3, 3));
+ assertEquals((int) '\ud801', java5.codePointAt(highSurrogateAt3, 3));
+ try {
+ java5.codePointAt(highSurrogateAt3, 4);
+ fail("string index out of bounds");
+ } catch (IndexOutOfBoundsException e) {
+ }
+
+ }
+
+ @Test
+ public void testCodePointAtCharArrayIntInt() {
+ CharacterUtils java4 = CharacterUtils.getInstance(Version.LUCENE_30);
+ char[] cpAt3 = "Abc\ud801\udc1c".toCharArray();
+ char[] highSurrogateAt3 = "Abc\ud801".toCharArray();
+ assertEquals((int) 'A', java4.codePointAt(cpAt3, 0, 2));
+ assertEquals((int) '\ud801', java4.codePointAt(cpAt3, 3, 5));
+ assertEquals((int) '\ud801', java4.codePointAt(highSurrogateAt3, 3, 4));
+
+ CharacterUtils java5 = CharacterUtils.getInstance(TEST_VERSION_CURRENT);
+ assertEquals((int) 'A', java5.codePointAt(cpAt3, 0, 2));
+ assertEquals(Character.toCodePoint('\ud801', '\udc1c'), java5.codePointAt(
+ cpAt3, 3, 5));
+ assertEquals((int) '\ud801', java5.codePointAt(highSurrogateAt3, 3, 4));
+
+ }
+
+ @Test
+ public void testNewCharacterBuffer() {
+ CharacterBuffer newCharacterBuffer = CharacterUtils.newCharacterBuffer(1024);
+ assertEquals(1024, newCharacterBuffer.getBuffer().length);
+ assertEquals(0, newCharacterBuffer.getOffset());
+ assertEquals(0, newCharacterBuffer.getLength());
+
+ newCharacterBuffer = CharacterUtils.newCharacterBuffer(2);
+ assertEquals(2, newCharacterBuffer.getBuffer().length);
+ assertEquals(0, newCharacterBuffer.getOffset());
+ assertEquals(0, newCharacterBuffer.getLength());
+
+ try {
+ newCharacterBuffer = CharacterUtils.newCharacterBuffer(1);
+ fail("length must be >= 2");
+ } catch (IllegalArgumentException e) {
+ }
+ }
+
+ @Test
+ public void testFillNoHighSurrogate() throws IOException {
+ Version[] versions = new Version[] { Version.LUCENE_30, TEST_VERSION_CURRENT };
+ for (Version version : versions) {
+ CharacterUtils instance = CharacterUtils.getInstance(version);
+ Reader reader = new StringReader("helloworld");
+ CharacterBuffer buffer = CharacterUtils.newCharacterBuffer(6);
+ assertTrue(instance.fill(buffer,reader));
+ assertEquals(0, buffer.getOffset());
+ assertEquals(6, buffer.getLength());
+ assertEquals("hellow", new String(buffer.getBuffer()));
+ assertTrue(instance.fill(buffer,reader));
+ assertEquals(4, buffer.getLength());
+ assertEquals(0, buffer.getOffset());
+
+ assertEquals("orld", new String(buffer.getBuffer(), buffer.getOffset(),
+ buffer.getLength()));
+ assertFalse(instance.fill(buffer,reader));
+ }
+ }
+
+ @Test
+ public void testFillJava15() throws IOException {
+ String input = "1234\ud801\udc1c789123\ud801\ud801\udc1c\ud801";
+ CharacterUtils instance = CharacterUtils.getInstance(TEST_VERSION_CURRENT);
+ Reader reader = new StringReader(input);
+ CharacterBuffer buffer = CharacterUtils.newCharacterBuffer(5);
+ assertTrue(instance.fill(buffer, reader));
+ assertEquals(4, buffer.getLength());
+ assertEquals("1234", new String(buffer.getBuffer(), buffer.getOffset(),
+ buffer.getLength()));
+ assertTrue(instance.fill(buffer, reader));
+ assertEquals(5, buffer.getLength());
+ assertEquals("\ud801\udc1c789", new String(buffer.getBuffer()));
+ assertTrue(instance.fill(buffer, reader));
+ assertEquals(4, buffer.getLength());
+ assertEquals("123\ud801", new String(buffer.getBuffer(),
+ buffer.getOffset(), buffer.getLength()));
+ assertTrue(instance.fill(buffer, reader));
+ assertEquals(2, buffer.getLength());
+ assertEquals("\ud801\udc1c", new String(buffer.getBuffer(), buffer
+ .getOffset(), buffer.getLength()));
+ assertTrue(instance.fill(buffer, reader));
+ assertEquals(1, buffer.getLength());
+ assertEquals("\ud801", new String(buffer.getBuffer(), buffer
+ .getOffset(), buffer.getLength()));
+ assertFalse(instance.fill(buffer, reader));
+ }
+
+ @Test
+ public void testFillJava14() throws IOException {
+ String input = "1234\ud801\udc1c789123\ud801\ud801\udc1c\ud801";
+ CharacterUtils instance = CharacterUtils.getInstance(Version.LUCENE_30);
+ Reader reader = new StringReader(input);
+ CharacterBuffer buffer = CharacterUtils.newCharacterBuffer(5);
+ assertTrue(instance.fill(buffer, reader));
+ assertEquals(5, buffer.getLength());
+ assertEquals("1234\ud801", new String(buffer.getBuffer(), buffer
+ .getOffset(), buffer.getLength()));
+ assertTrue(instance.fill(buffer, reader));
+ assertEquals(5, buffer.getLength());
+ assertEquals("\udc1c7891", new String(buffer.getBuffer()));
+ buffer = CharacterUtils.newCharacterBuffer(6);
+ assertTrue(instance.fill(buffer, reader));
+ assertEquals(6, buffer.getLength());
+ assertEquals("23\ud801\ud801\udc1c\ud801", new String(buffer.getBuffer(), buffer
+ .getOffset(), buffer.getLength()));
+ assertFalse(instance.fill(buffer, reader));
+
+ }
+
+}
fnp / pylucene.git / blobdiff