/*
 * 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.flink.fs.s3.common.writer;

import org.junit.Assert;
import org.junit.Test;

/**
 * Tests for the {@link RecoverableMultiPartUploadImpl#createIncompletePartObjectNamePrefix(String)}.
 */
public class IncompletePartPrefixTest {

	@Test(expected = NullPointerException.class)
	public void nullObjectNameShouldThroughException() {
		RecoverableMultiPartUploadImpl.createIncompletePartObjectNamePrefix(null);
	}

	@Test
	public void emptyInitialNameShouldSucceed() {
		String objectNamePrefix = RecoverableMultiPartUploadImpl.createIncompletePartObjectNamePrefix("");
		Assert.assertEquals("_tmp_", objectNamePrefix);
	}

	@Test
	public void nameWithoutSlashShouldSucceed() {
		String objectNamePrefix = RecoverableMultiPartUploadImpl.createIncompletePartObjectNamePrefix("no_slash_path");
		Assert.assertEquals("_no_slash_path_tmp_", objectNamePrefix);
	}

	@Test
	public void nameWithOnlySlashShouldSucceed() {
		String objectNamePrefix = RecoverableMultiPartUploadImpl.createIncompletePartObjectNamePrefix("/");
		Assert.assertEquals("/_tmp_", objectNamePrefix);
	}

	@Test
	public void normalPathShouldSucceed() {
		String objectNamePrefix = RecoverableMultiPartUploadImpl.createIncompletePartObjectNamePrefix("/root/home/test-file");
		Assert.assertEquals("/root/home/_test-file_tmp_", objectNamePrefix);
	}
}