io.servicecomb.foundation.vertx.TestVertxUtils.java Source code

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Here is the source code for io.servicecomb.foundation.vertx.TestVertxUtils.java

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/*
 * Copyright 2017 Huawei Technologies Co., Ltd
 *
 * 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.servicecomb.foundation.vertx;

import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.concurrent.CountDownLatch;

import javax.xml.ws.Holder;

import org.junit.Assert;
import org.junit.Test;

import io.netty.buffer.ByteBuf;
import io.netty.buffer.Unpooled;
import io.servicecomb.foundation.vertx.stream.BufferInputStream;
import io.vertx.core.Vertx;
import io.vertx.core.VertxOptions;
import io.vertx.core.buffer.Buffer;

public class TestVertxUtils {
    @Test
    public void testGetOrCreateVertx() throws InterruptedException {
        Vertx vertx = VertxUtils.getOrCreateVertxByName("ut", null);

        Holder<String> name = new Holder<>();
        CountDownLatch latch = new CountDownLatch(1);
        vertx.runOnContext(v -> {
            name.value = Thread.currentThread().getName();
            latch.countDown();
        });
        latch.await();

        Assert.assertEquals(name.value, "ut-vert.x-eventloop-thread-0");
        vertx.close();
    }

    @Test
    public void testVertxUtilsInitNullOptions() {
        Vertx vertx = VertxUtils.init(null);
        Assert.assertNotEquals(null, vertx);
        vertx.close();
    }

    @Test
    public void testVertxUtilsInitWithOptions() {
        VertxOptions oOptions = new VertxOptions();
        oOptions.setClustered(false);

        Vertx vertx = VertxUtils.init(oOptions);
        Assert.assertNotEquals(null, vertx);
        vertx.close();
    }

    @Test
    public void testgetBytesFastBufferInputStream() throws IOException {
        byte[] bytes = new byte[] { 1 };
        ByteBuf byteBuf = Unpooled.wrappedBuffer(bytes);

        try (BufferInputStream inputStream = new BufferInputStream(byteBuf)) {
            byte[] result = VertxUtils.getBytesFast(inputStream);
            Assert.assertSame(bytes, result);
        }
    }

    @Test
    public void testgetBytesFastNormalInputStream() throws IOException {
        byte[] bytes = new byte[] { 1 };

        try (InputStream inputStream = new ByteArrayInputStream(bytes)) {
            byte[] result = VertxUtils.getBytesFast(inputStream);
            Assert.assertEquals(1, result[0]);
        }
    }

    @Test
    public void testgetBytesFastBuffer() {
        Buffer buffer = Buffer.buffer();
        buffer.appendByte((byte) 1);

        byte[] result = VertxUtils.getBytesFast(buffer);
        Assert.assertEquals(1, result[0]);
    }

    @Test
    public void testgetBytesFastByteBufHasArray() {
        byte[] bytes = new byte[] { 1 };
        ByteBuf byteBuf = Unpooled.wrappedBuffer(bytes);

        byte[] result = VertxUtils.getBytesFast(byteBuf);
        Assert.assertSame(bytes, result);
    }

    @Test
    public void testgetBytesFastByteBufCopy() {
        ByteBuf byteBuf = Unpooled.directBuffer();
        byteBuf.writeByte(1);
        Assert.assertFalse(byteBuf.hasArray());

        byte[] result = VertxUtils.getBytesFast(byteBuf);
        Assert.assertEquals(1, result[0]);

        byteBuf.release();
    }
}