// Copyright 2015 The Vanadium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package io.v.syncbase.v23.services.syncbase.util;

import static com.google.common.truth.Truth.assertThat;
import static com.google.common.truth.Truth.assert_;

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

import junit.framework.TestCase;

/**
 * Tests the various {@link Util} methods.
 */
public class UtilTest extends TestCase {
    public void testPrefixRange() {
        List<String[]> tests = Arrays.asList(new String[][] {
                {"", "", ""},
                {"a", "a", "b"},
                {"aa", "aa", "ab"},
                {"\u00fe", "\u00fe", "\u00ff"},
                {"a\u00fe", "a\u00fe", "a\u00ff"},
                {"aa\u00fe", "aa\u00fe", "aa\u00ff"},
                {"a\u00ff", "a\u00ff", "b"},
                {"aa\u00ff", "aa\u00ff", "ab"},
                {"a\u00ff\u00ff", "a\u00ff\u00ff", "b"},
                {"aa\u00ff\u00ff", "aa\u00ff\u00ff", "ab"},
                {"\u00ff", "\u00ff", ""},
                {"\u00ff\u00ff", "\u00ff\u00ff", ""}
        });
        for (String[] test : tests) {
            String prefix = test[0];
            String start = test[1];
            String limit = test[2];
            String actualStart = Util.prefixRangeStart(prefix);
            String actualLimit = Util.prefixRangeLimit(prefix);
            assert_().withFailureMessage("Failed for prefix: " + prefix)
                    .that(actualStart).isEqualTo(start);
            assert_().withFailureMessage("Failed for prefix: " + prefix)
                    .that(actualLimit).isEqualTo(limit);
        }
    }
}