io.reactiverse.pgclient.StringLongSequenceTest.java Source code

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Here is the source code for io.reactiverse.pgclient.StringLongSequenceTest.java

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/*
 * Copyright (C) 2017 Julien Viet
 *
 * 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 io.reactiverse.pgclient;

import io.reactiverse.pgclient.impl.StringLongSequence;
import io.netty.buffer.ByteBuf;
import io.netty.buffer.Unpooled;
import org.junit.Assert;
import org.junit.Test;

import java.nio.charset.StandardCharsets;

public class StringLongSequenceTest {

    @Test
    public void testSequence() {
        StringLongSequence seq = new StringLongSequence();
        assertEquals("0000000", seq.next());
        assertEquals("0000001", seq.next());
        assertEquals("0000002", seq.next());
        assertEquals("0000003", seq.next());
        assertEquals("0000004", seq.next());
        assertEquals("0000005", seq.next());
        assertEquals("0000006", seq.next());
        assertEquals("0000007", seq.next());
        assertEquals("0000008", seq.next());
        assertEquals("0000009", seq.next());
        assertEquals("000000A", seq.next());
        assertEquals("000000B", seq.next());
        assertEquals("000000C", seq.next());
        assertEquals("000000D", seq.next());
        assertEquals("000000E", seq.next());
        assertEquals("000000F", seq.next());
        assertEquals("0000010", seq.next());
    }

    @Test
    public void testEndingZero() {
        StringLongSequence seq = new StringLongSequence();
        for (int i = 0; i < 10000; i++) {
            Assert.assertEquals(0, seq.next() & 0xFF);
        }
    }

    private static void assertEquals(String s, long l) {
        ByteBuf buf = Unpooled.buffer();
        buf.writeLong(l);
        String actual = buf.getCharSequence(0, 7, StandardCharsets.UTF_8).toString();
        Assert.assertEquals(s, actual);
    }
}