/*
 * Copyright 2022 the original author or authors.
 *
 * 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
 *
 *      https://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.springframework.cloud.skipper.server.util;

import static org.assertj.core.api.Assertions.assertThat;

/**
 * This utility remove the CR (\r) from linefeed on Windows when comparing content that comes from a file.
 *
 * @author Corneil du Plessis
 */
public class LineUtil {
	/**
	 * Compares 2 strings while replacing CRLR with LF.
	 *
	 * @param value Value to compare
	 * @param expected Expected value
	 */
	public static void assertEqualRemoveCr(final String value, final String expected) {
		assertThat(removeCr(value)).isEqualTo(removeCr(expected));
	}

	/**
	 * Replace CRLF with LR.
	 * @param input a string that requires modification
	 * @return modified string
	 */
	public static String removeCr(final String input) {
		return input != null ? input.replace("\r\n", "\n") : null;
	}
}
