/**
 * 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.
 */
package org.apache.pulsar.zookeeper;

import org.testng.annotations.DataProvider;
import org.testng.annotations.Test;

import static org.testng.Assert.assertEquals;

public class ZkUtilsParentPathTest {
    @DataProvider(name = "pathsAndParents")
    public static Object[][] pathsAndParents() {
        return new Object[][] {
                { null, null },
                { "", null },
                { "/", null },
                { "//", null },
                { "///", null },
                
                { "a", null },
                { "a/", null },
                { "a//", null },
                { "a///", null },

                { "/a", "/" },
                { "//a", "/" },
                { "///a", "/" },
                { "/a/", "/" },
                { "/a//", "/" },
                { "/a///", "/" },
                { "//a/", "/" },
                { "//a//", "/" },
                { "//a///", "/" },
                { "///a/", "/" },
                { "///a//", "/" },
                { "///a///", "/" },

                { "/a/b", "/a" },
                { "//a/b", "/a" },
                { "///a/b", "/a" },
                { "/a//b", "/a" },
                { "/a///b", "/a" },
                { "/a/b/", "/a" },
                { "/a/b//", "/a" },
                { "/a/b///", "/a" },
                { "/a//b/", "/a" },
                { "/a///b/", "/a" },

                { "a/b", "a" },
                { "a//b", "a" },
                { "a///b", "a" },
                { "a/b/", "a" },
                { "a/b//", "a" },
                { "a/b///", "a" },
                { "a//b/", "a" },
                { "a///b/", "a" },

                { "/a/b/c", "/a/b" },
                { "//a/b/c", "/a/b" },
                { "///a/b/c", "/a/b" },
                { "/a//b/c", "/a/b" },
                { "/a///b/c", "/a/b" },
                { "/a/b//c", "/a/b" },
                { "/a/b///c", "/a/b" },
                { "/a//b//c/", "/a/b" },
                { "/a//b///c/", "/a/b" },
                { "/a///b//c/", "/a/b" },
                { "/a///b///c/", "/a/b" },
                { "/a/b/c/", "/a/b" },
                { "/a/b//c/", "/a/b" },
                { "/a/b///c/", "/a/b" },

                { "a/b/c", "a/b" },
                { "a//b/c", "a/b" },
                { "a///b/c", "a/b" },

                { "abc", null },
                { "abc/", null },
                { "/abc", "/" },
                { "/abc/", "/" },
                { "/abc/def", "/abc" },
                { "/abc/def/", "/abc" },
                { "abc/def", "abc" },
                { "abc/def/", "abc" },
                { "/abc/def/ghi", "/abc/def" },
                { "/abc/def/ghi/", "/abc/def" },
                { "abc/def/ghi", "abc/def" },
                { "abc/def/ghi/", "abc/def" }
        };
    }

    @Test(dataProvider = "pathsAndParents")
    public void testGetParentForPath(final String path, final String expectedParent) {
        assertEquals(ZkUtils.getParentForPath(path), expectedParent, "Parent for " + path);
    }
}
