PathTrieTests.java

/*
 * Licensed to ElasticSearch and Shay Banon under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership. ElasticSearch 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.
 */

package org.elasticsearch.test.unit.common.path;

import org.elasticsearch.common.path.PathTrie;
import org.testng.annotations.Test;

import java.util.Map;

import static com.google.common.collect.Maps.newHashMap;
import static org.hamcrest.MatcherAssert.assertThat;
import static org.hamcrest.Matchers.equalTo;
import static org.hamcrest.Matchers.nullValue;

/**
 *
 */
public class PathTrieTests {

    @Test
    public void testPath() {
        PathTrie<String> trie = new PathTrie<String>();
        trie.insert("/a/b/c", "walla");
        trie.insert("a/d/g", "kuku");
        trie.insert("x/b/c", "lala");
        trie.insert("a/x/*", "one");
        trie.insert("a/b/*", "two");
        trie.insert("*/*/x", "three");
        trie.insert("{index}/insert/{docId}", "bingo");

        assertThat(trie.retrieve("a/b/c"), equalTo("walla"));
        assertThat(trie.retrieve("a/d/g"), equalTo("kuku"));
        assertThat(trie.retrieve("x/b/c"), equalTo("lala"));
        assertThat(trie.retrieve("a/x/b"), equalTo("one"));
        assertThat(trie.retrieve("a/b/d"), equalTo("two"));

        assertThat(trie.retrieve("a/b"), nullValue());
        assertThat(trie.retrieve("a/b/c/d"), nullValue());
        assertThat(trie.retrieve("g/t/x"), equalTo("three"));

        Map<String, String> params = newHashMap();
        assertThat(trie.retrieve("index1/insert/12", params), equalTo("bingo"));
        assertThat(params.size(), equalTo(2));
        assertThat(params.get("index"), equalTo("index1"));
        assertThat(params.get("docId"), equalTo("12"));
    }

    @Test
    public void testEmptyPath() {
        PathTrie<String> trie = new PathTrie<String>();
        trie.insert("/", "walla");
        assertThat(trie.retrieve(""), equalTo("walla"));
    }

    @Test
    public void testDifferentNamesOnDifferentPath() {
        PathTrie<String> trie = new PathTrie<String>();
        trie.insert("/a/{type}", "test1");
        trie.insert("/b/{name}", "test2");

        Map<String, String> params = newHashMap();
        assertThat(trie.retrieve("/a/test", params), equalTo("test1"));
        assertThat(params.get("type"), equalTo("test"));

        params.clear();
        assertThat(trie.retrieve("/b/testX", params), equalTo("test2"));
        assertThat(params.get("name"), equalTo("testX"));
    }

    @Test
    public void testSameNameOnDifferentPath() {
        PathTrie<String> trie = new PathTrie<String>();
        trie.insert("/a/c/{name}", "test1");
        trie.insert("/b/{name}", "test2");

        Map<String, String> params = newHashMap();
        assertThat(trie.retrieve("/a/c/test", params), equalTo("test1"));
        assertThat(params.get("name"), equalTo("test"));

        params.clear();
        assertThat(trie.retrieve("/b/testX", params), equalTo("test2"));
        assertThat(params.get("name"), equalTo("testX"));
    }

    @Test
    public void testPreferNonWildcardExecution() {
        PathTrie<String> trie = new PathTrie<String>();
        trie.insert("{test}", "test1");
        trie.insert("b", "test2");
        trie.insert("{test}/a", "test3");
        trie.insert("b/a", "test4");

        Map<String, String> params = newHashMap();
        assertThat(trie.retrieve("/b", params), equalTo("test2"));
        assertThat(trie.retrieve("/b/a", params), equalTo("test4"));
    }
}