/*
 * Copyright (c) "Neo4j"
 * Neo4j Sweden AB [http://neo4j.com]
 *
 * This file is part of Neo4j.
 *
 * Licensed 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 apoc.load;

import java.io.IOException;
import java.io.InputStream;
import org.apache.commons.io.IOUtils;
import org.junit.jupiter.api.Assertions;
import org.junit.jupiter.api.Test;

class SkipWhitespaceInputStreamTest {

    @Test
    void testRemovalOfWhitespace() throws IOException {
        assertFilterWhitespace("  this is a test \n   with some whitespace", "this is a test with some whitespace");
        assertFilterWhitespace("  this is a test \r\n   with some whitespace", "this is a test with some whitespace");
    }

    private void assertFilterWhitespace(String input, String expected) throws IOException {
        InputStream inputStream = IOUtils.toInputStream(input, "UTF-8");
        Assertions.assertEquals(expected, IOUtils.toString(new SkipWhitespaceInputStream(inputStream), "UTF-8"));
    }
}
