/*
 * Licensed to Elasticsearch 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.common.settings.loader;

import org.elasticsearch.ElasticsearchParseException;
import org.elasticsearch.test.ESTestCase;
import org.junit.Before;

import java.io.IOException;
import java.nio.charset.Charset;

public class PropertiesSettingsLoaderTests extends ESTestCase {

    private PropertiesSettingsLoader loader;

    @Before
    public void setUp() throws Exception {
        super.setUp();
        loader = new PropertiesSettingsLoader();
    }

    public void testDuplicateKeyFromStringThrowsException() throws IOException {
        final ElasticsearchParseException e = expectThrows(ElasticsearchParseException.class, () -> loader.load("foo=bar\nfoo=baz"));
        assertEquals(e.getMessage(), "duplicate settings key [foo] found, previous value [bar], current value [baz]");
    }

    public void testDuplicateKeysFromBytesThrowsException() throws IOException {
        final ElasticsearchParseException e = expectThrows(
                ElasticsearchParseException.class,
                () -> loader.load("foo=bar\nfoo=baz".getBytes(Charset.defaultCharset()))
        );
        assertEquals(e.getMessage(), "duplicate settings key [foo] found, previous value [bar], current value [baz]");
    }

}

@@ -2022,10 +2022,282 @@
 %0A    %7D%0A%0A
+    public void testThatNoDuplicatesPropertiesDoesNotAcceptNullValues() %7B%0A        PropertiesSettingsLoader.NoDuplicatesProperties properties = loader.new NoDuplicatesProperties();%0A        expectThrows(NullPointerException.class, () -%3E properties.put(%22key%22, null));%0A    %7D%0A%0A
 %7D%0A

Test that NoDuplicatesProperties throws for null value