/*
 * Copyright 2012-2017 Red Hat, Inc.
 *
 * This file is part of Thermostat.
 *
 * Thermostat is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published
 * by the Free Software Foundation; either version 2, or (at your
 * option) any later version.
 *
 * Thermostat is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Thermostat; see the file COPYING.  If not see
 * <http://www.gnu.org/licenses/>.
 *
 * Linking this code with other modules is making a combined work
 * based on this code.  Thus, the terms and conditions of the GNU
 * General Public License cover the whole combination.
 *
 * As a special exception, the copyright holders of this code give
 * you permission to link this code with independent modules to
 * produce an executable, regardless of the license terms of these
 * independent modules, and to copy and distribute the resulting
 * executable under terms of your choice, provided that you also
 * meet, for each linked independent module, the terms and conditions
 * of the license of that module.  An independent module is a module
 * which is not derived from or based on this code.  If you modify
 * this code, you may extend this exception to your version of the
 * library, but you are not obligated to do so.  If you do not wish
 * to do so, delete this exception statement from your version.
 */

package com.redhat.thermostat.common.utils;

import static org.hamcrest.CoreMatchers.is;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertThat;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

import org.junit.Test;

public class StringUtilsTest {

    @Test
    public void testJoining() {
        assertEquals("", StringUtils.join("", list()));
        assertEquals("a", StringUtils.join("-", list("a")));
        assertEquals("a, b", StringUtils.join(", ", list("a", "b")));
        assertEquals("a:b", StringUtils.join(":", list("a", "b")));
        assertEquals("a:b:", StringUtils.join(":", list("a", "b", "")));
    }

    static List<String> list(String... items) {
        if (items == null) {
            return new ArrayList<>();
        } else {
            return Arrays.asList(items);
        }
    }

    @Test
    public void testHtmlEscape() {
        String plainText = "hello";
        assertEquals(plainText, StringUtils.htmlEscape(plainText));

        String funnyCharacters = "<a h=\"f\">b</a>";
        String escapedFunnyCharacters = StringUtils.htmlEscape(funnyCharacters);
        assertFalse(escapedFunnyCharacters.contains("<"));
        assertFalse(escapedFunnyCharacters.contains(">"));
        assertFalse(escapedFunnyCharacters.contains("\""));
        assertFalse(escapedFunnyCharacters.contains("/"));
    }

    @Test
    public void testStringCompare() {
        assertThat(StringUtils.compare("a", "b"), is("a".compareTo("b")));
        assertThat(StringUtils.compare("a", null), is(-1));
        assertThat(StringUtils.compare(null, "a"), is(1));
        assertThat(StringUtils.compare(null, null), is(0));
    }

}