001/*
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 *
010 *     http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing, software
013 * distributed under the License is distributed on an "AS IS" BASIS,
014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015 * See the License for the specific language governing permissions and
016 * limitations under the License.
017 */
018package org.apache.hadoop.hbase.util;
019
020import static org.junit.jupiter.api.Assertions.assertEquals;
021import static org.junit.jupiter.api.Assertions.assertFalse;
022import static org.junit.jupiter.api.Assertions.assertNull;
023import static org.junit.jupiter.api.Assertions.assertThrows;
024import static org.junit.jupiter.api.Assertions.assertTrue;
025
026import java.net.URI;
027import java.net.URLEncoder;
028import java.nio.charset.StandardCharsets;
029import java.util.Map;
030import org.apache.hadoop.conf.Configuration;
031import org.apache.hadoop.hbase.testclassification.MiscTests;
032import org.apache.hadoop.hbase.testclassification.SmallTests;
033import org.junit.jupiter.api.Tag;
034import org.junit.jupiter.api.Test;
035
036@Tag(MiscTests.TAG)
037@Tag(SmallTests.TAG)
038public class TestStrings {
039
040  @Test
041  public void testAppendKeyValue() {
042    assertEquals("foo, bar=baz",
043      Strings.appendKeyValue(new StringBuilder("foo"), "bar", "baz").toString());
044    assertEquals("bar->baz",
045      Strings.appendKeyValue(new StringBuilder(), "bar", "baz", "->", "| ").toString());
046    assertEquals("foo, bar=baz",
047      Strings.appendKeyValue(new StringBuilder("foo"), "bar", "baz", "=", ", ").toString());
048    assertEquals("foo| bar->baz",
049      Strings.appendKeyValue(new StringBuilder("foo"), "bar", "baz", "->", "| ").toString());
050  }
051
052  @Test
053  public void testDomainNamePointerToHostName() {
054    assertNull(Strings.domainNamePointerToHostName(null));
055    assertEquals("foo", Strings.domainNamePointerToHostName("foo"));
056    assertEquals("foo.com", Strings.domainNamePointerToHostName("foo.com"));
057    assertEquals("foo.bar.com", Strings.domainNamePointerToHostName("foo.bar.com"));
058    assertEquals("foo.bar.com", Strings.domainNamePointerToHostName("foo.bar.com."));
059  }
060
061  @Test
062  public void testHostnamesEqual() {
063    assertTrue(Strings.hostnamesEqual("HOST.example.com", "host.example.com"));
064    assertTrue(Strings.hostnamesEqual("rs1", "RS1"));
065    assertFalse(Strings.hostnamesEqual("host-a.example.com", "host-b.example.com"));
066    assertTrue(Strings.hostnamesEqual("10.0.0.1", "10.0.0.1"));
067    assertFalse(Strings.hostnamesEqual("10.0.0.1", "10.0.0.2"));
068    assertFalse(Strings.hostnamesEqual("HOST.example.com", "10.0.0.1"));
069    assertTrue(Strings.hostnamesEqual("::1", "0:0:0:0:0:0:0:1"));
070    assertTrue(Strings.hostnamesEqual("[2001:0db8:85a3:0000:0000:8a2e:0370:7334]",
071      "2001:0db8:85a3:0000:0000:8a2e:0370:7334"));
072    assertThrows(NullPointerException.class, () -> Strings.hostnamesEqual(null, "host"));
073    assertThrows(NullPointerException.class, () -> Strings.hostnamesEqual("host", null));
074  }
075
076  @Test
077  public void testPadFront() {
078    assertEquals("ddfoo", Strings.padFront("foo", 'd', 5));
079    assertThrows(IllegalArgumentException.class, () -> Strings.padFront("foo", 'd', 1));
080  }
081
082  @Test
083  public void testParseURIQueries() throws Exception {
084    Map<String,
085      String> queries = Strings.parseURIQueries(new URI("hbase+rpc://server01:123?a=1&b=2&a=3&"
086        + URLEncoder.encode("& ?", StandardCharsets.UTF_8.name()) + "=&"
087        + URLEncoder.encode("===", StandardCharsets.UTF_8.name())));
088    assertEquals("1", queries.get("a"));
089    assertEquals("2", queries.get("b"));
090    assertEquals("", queries.get("& ?"));
091    assertEquals("", queries.get("==="));
092    assertEquals(4, queries.size());
093
094    assertTrue(Strings.parseURIQueries(new URI("hbase+zk://zk1:2181/")).isEmpty());
095    assertTrue(Strings.parseURIQueries(new URI("hbase+zk://zk1:2181/?")).isEmpty());
096    assertTrue(Strings.parseURIQueries(new URI("hbase+zk://zk1:2181/?#anchor")).isEmpty());
097  }
098
099  @Test
100  public void testApplyURIQueriesToConf() throws Exception {
101    Configuration conf = new Configuration();
102    Strings.applyURIQueriesToConf(new URI("hbase+zk://aaa:2181/root?a=1&b=2&c"), conf);
103    assertEquals("1", conf.get("a"));
104    assertEquals("2", conf.get("b"));
105    assertEquals("", conf.get("c"));
106  }
107}