org.springframework.cloud.function.web.source.FunctionAutoConfigurationIntegrationTests.java Source code

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Here is the source code for org.springframework.cloud.function.web.source.FunctionAutoConfigurationIntegrationTests.java

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/*
 * Copyright 2018-2019 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.function.web.source;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.Iterator;
import java.util.List;
import java.util.function.Function;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.junit.AfterClass;
import org.junit.BeforeClass;
import org.junit.Test;
import org.junit.runner.RunWith;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.boot.test.context.SpringBootTest.WebEnvironment;
import org.springframework.boot.test.context.TestConfiguration;
import org.springframework.cloud.function.web.source.FunctionAutoConfigurationIntegrationTests.ApplicationConfiguration;
import org.springframework.cloud.function.web.source.FunctionAutoConfigurationIntegrationTests.RestConfiguration;
import org.springframework.context.annotation.Bean;
import org.springframework.http.ResponseEntity;
import org.springframework.test.context.junit4.SpringRunner;
import org.springframework.util.SocketUtils;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RestController;

import static org.assertj.core.api.Assertions.assertThat;

/**
 * @author Dave Syer
 *
 */
@RunWith(SpringRunner.class)
@SpringBootTest(classes = { RestConfiguration.class,
        ApplicationConfiguration.class }, webEnvironment = WebEnvironment.DEFINED_PORT, properties = {
                "spring.cloud.function.web.export.sink.url=http://localhost:${server.port}",
                "spring.cloud.function.web.export.source.url=http://localhost:${server.port}",
                "spring.cloud.function.web.export.sink.name=origin|uppercase",
                // "spring.cloud.function.web.export.debug=true",
                "spring.cloud.function.web.export.enabled=true" })
public class FunctionAutoConfigurationIntegrationTests {

    @Autowired
    private SupplierExporter forwarder;

    @Autowired
    private RestConfiguration app;

    @BeforeClass
    public static void init() {
        System.setProperty("server.port", "" + SocketUtils.findAvailableTcpPort());
    }

    @AfterClass
    public static void close() {
        System.clearProperty("server.port");
    }

    @Test
    public void copiesMessages() throws Exception {
        int count = 0;
        while (this.forwarder.isRunning() && count++ < 10) {
            Thread.sleep(20);
        }
        // It completed
        assertThat(this.forwarder.isOk()).isTrue();
        assertThat(this.app.inputs).contains("HELLO");
        assertThat(this.app.inputs).contains("WORLD");
    }

    @EnableAutoConfiguration
    @TestConfiguration
    public static class ApplicationConfiguration {

        @Bean
        public Function<String, String> uppercase() {
            return value -> value.toUpperCase();
        }

    }

    @TestConfiguration
    @RestController
    public static class RestConfiguration {

        private static Log logger = LogFactory.getLog(RestConfiguration.class);

        private List<String> inputs = new ArrayList<>();

        private Iterator<String> outputs = Arrays.asList("hello", "world").iterator();

        @GetMapping("/")
        ResponseEntity<String> home() {
            logger.info("HOME");
            if (this.outputs.hasNext()) {
                return ResponseEntity.ok(this.outputs.next());
            }
            return ResponseEntity.notFound().build();
        }

        @PostMapping("/")
        void accept(@RequestBody String body) {
            logger.info("ACCEPT");
            this.inputs.add(body);
        }

    }

}