org.springframework.cloud.stream.app.log.sink.LogSinkApplicationTests.java Source code

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Here is the source code for org.springframework.cloud.stream.app.log.sink.LogSinkApplicationTests.java

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/*
 * Copyright 2015-2018 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.stream.app.log.sink;

import java.util.HashMap;

import com.fasterxml.jackson.databind.ObjectMapper;
import org.apache.commons.logging.Log;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.mockito.ArgumentCaptor;

import org.springframework.beans.DirectFieldAccessor;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.cloud.stream.converter.TupleJsonMessageConverter;
import org.springframework.cloud.stream.messaging.Sink;
import org.springframework.integration.handler.LoggingHandler;
import org.springframework.integration.test.util.TestUtils;
import org.springframework.messaging.Message;
import org.springframework.messaging.MessageHeaders;
import org.springframework.messaging.support.MessageBuilder;
import org.springframework.test.annotation.DirtiesContext;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import org.springframework.tuple.Tuple;
import org.springframework.tuple.TupleBuilder;
import org.springframework.util.MimeType;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertTrue;
import static org.mockito.Mockito.spy;
import static org.mockito.Mockito.times;
import static org.mockito.Mockito.verify;

@RunWith(SpringJUnit4ClassRunner.class)
@DirtiesContext(classMode = DirtiesContext.ClassMode.AFTER_EACH_TEST_METHOD)
@SpringBootTest({ "server.port=-1", "log.name=foo", "log.level=warn", "log.expression=payload.toUpperCase()" })
public class LogSinkApplicationTests {

    @Autowired
    private Sink sink;

    @Autowired
    private LoggingHandler logSinkHandler;

    @Test
    public void testTextContentType() {
        Message<byte[]> message = MessageBuilder.withPayload("{\"foo\":\"bar\"}".getBytes())
                .setHeader("contentType", MimeType.valueOf("text/plain")).build();
        this.testMessage(message, "{\"foo\":\"bar\"}");
    }

    @Test
    public void testJsonContentType() {
        Message<byte[]> message = MessageBuilder.withPayload("{\"foo\":\"bar\"}".getBytes())
                .setHeader("contentType", new MimeType("json")).build();
        this.testMessage(message, "{\"foo\":\"bar\"}");
    }

    @Test
    public void testTupleContentType() {
        Tuple tuple = TupleBuilder.tuple().of("foo", "bar");
        Message<byte[]> message = (Message<byte[]>) new TupleJsonMessageConverter(new ObjectMapper())
                .toMessage(tuple, new MessageHeaders(new HashMap<>()));
        this.testMessage(message, "{\"foo\":\"bar\"}");
    }

    private void testMessage(Message<byte[]> message, String expectedPayload) {
        assertNotNull(this.sink.input());
        assertEquals(LoggingHandler.Level.WARN, this.logSinkHandler.getLevel());
        Log logger = TestUtils.getPropertyValue(this.logSinkHandler, "messageLogger", Log.class);
        assertEquals("foo", TestUtils.getPropertyValue(logger, "logger.name"));
        logger = spy(logger);
        new DirectFieldAccessor(this.logSinkHandler).setPropertyValue("messageLogger", logger);
        this.sink.input().send(message);
        ArgumentCaptor<Object> captor = ArgumentCaptor.forClass(Object.class);
        verify(logger).warn(captor.capture());
        assertEquals(expectedPayload.toUpperCase(), captor.getValue());
        this.logSinkHandler.setLogExpressionString("#this");
        this.sink.input().send(message);
        verify(logger, times(2)).warn(captor.capture());

        Message captorMessage = (Message) captor.getAllValues().get(2);
        assertEquals("Unexpected payload value", expectedPayload, captorMessage.getPayload());

        MessageHeaders messageHeaders = captorMessage.getHeaders();
        assertEquals("Unexpected number of headers", 3, messageHeaders.size());

        String[] headers = { "contentType" };

        for (String header : headers) {
            assertTrue("Missing " + header + " header", messageHeaders.containsKey(header));
            assertEquals("Header " + header + " does not match", messageHeaders.get(header),
                    message.getHeaders().get(header));
        }
    }

    @SpringBootApplication
    static class LogSinkApplication {
        public static void main(String[] args) {
            SpringApplication.run(LogSinkApplication.class, args);
        }

    }
}