SpringCloudStream TestChannelBinderConfiguration Junits测试不支持Mockito

pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>2.7.11</version>
    <relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.example</groupId>
<artifactId>sample-project</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>sample-project</name>
<description>Demo project for Spring Boot</description>
<properties>
    <java.version>1.8</java.version>
    <!-- Spring Cloud Stream versions -->
    <spring-cloud.version>2021.0.5</spring-cloud.version>
    <spring-cloud-stream.version>3.2.7</spring-cloud-stream.version>
    <spring-cloud-stream-kinesis.version>2.2.0</spring-cloud-stream-kinesis.version>
</properties>
<dependencies>
        <!-- Spring Cloud Stream dependencies -->
    <!-- start -->
    <dependency>
      <groupId>org.springframework.cloud</groupId>
      <artifactId>spring-cloud-stream</artifactId>
      <version>${spring-cloud-stream.version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework.cloud</groupId>
      <artifactId>spring-cloud-stream-binder-kafka</artifactId>
      <version>${spring-cloud-stream.version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework.kafka</groupId>
      <artifactId>spring-kafka</artifactId>
    </dependency>
    <dependency>
      <groupId>org.springframework.cloud</groupId>
      <artifactId>spring-cloud-stream-binder-kinesis</artifactId>
      <version>${spring-cloud-stream-kinesis.version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework.cloud</groupId>
      <artifactId>spring-cloud-stream</artifactId>
      <scope>test</scope>
      <classifier>test-binder</classifier>
      <type>test-jar</type>
      <version>${spring-cloud-stream.version}</version>
    </dependency>
<!--     <dependency> -->
<!--       <groupId>org.springframework.kafka</groupId> -->
<!--       <artifactId>spring-kafka-test</artifactId> -->
<!--       <scope>test</scope> -->
<!--     </dependency> -->
    <dependency>
      <groupId>software.amazon.msk</groupId>
      <artifactId>aws-msk-iam-auth</artifactId>
      <version>1.1.6</version>
    </dependency>
<!--  end -->

    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter</artifactId>
    </dependency>

    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-test</artifactId>
        <scope>test</scope>
    </dependency>

    <dependency>
       <groupId>org.springframework.boot</groupId>
       <artifactId>spring-boot-starter-test</artifactId>
       <scope>test</scope>
       <exclusions>
        <exclusion>
         <groupId>junit</groupId>
         <artifactId>junit</artifactId>
        </exclusion>
        </exclusions>
     </dependency>
</dependencies>

<dependencyManagement>
<!-- Spring Cloud Stream dependency management -->
<dependencies>
  <dependency>
    <groupId>org.springframework.cloud</groupId>
    <artifactId>spring-cloud-dependencies</artifactId>
    <version>${spring-cloud.version}</version>
    <type>pom</type>
    <scope>import</scope>
  </dependency>
</dependencies>
</dependencyManagement>

<build>
    <plugins>
        <plugin>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-maven-plugin</artifactId>
        </plugin>
    </plugins>
</build>
</project>

consumers.java

//@Component
@EnableAutoConfiguration
@ComponentScan("com.example.sampleproject.services")
public class SampleConsumer {

@Autowired
private SampleService sampleService;

@Bean
public Function<String, String> uppercase() {
        return v -> sampleService.convertToUpperCase(v);
}

}

SampleService.java

public interface SampleService {

public String convertToUpperCase(String str);

 }

SampleServiceImpl.java

@Service
public class SampleServiceImpl  implements SampleService {

@Autowired
private SampleService2 sampleService2;

public String convertToUpperCase(String str) {
    str = sampleService2.convertStringToLowerCase(str);
    return str.toUpperCase();
}

}

SampleService2.java

public interface SampleService2 {

public String convertStringToLowerCase(String str);
 }

SampleService2Impl.java

@Service
public class SampleService2Impl implements SampleService2 {

public String convertStringToLowerCase(String str) {
    return str.toLowerCase();
}

}

SampleConsumerTests.java

@SpringBootTest
public class SampleConsumerTests {

@MockBean
private SampleService2 sampleService2;

@Test
public void sampleTest() {

    when(sampleService2.convertStringToLowerCase(ArgumentMatchers.any()))
     .thenReturn("mockedString");

    try (ConfigurableApplicationContext context = new SpringApplicationBuilder(
                TestChannelBinderConfiguration.getCompleteConfiguration(
                        SampleConsumer.class))
                .run("--spring.cloud.function.definition=uppercase")) {
        InputDestination source = context.getBean(InputDestination.class);
        OutputDestination target = context.getBean(OutputDestination.class);
        source.send(new GenericMessage<byte[]>("hello".getBytes()));
        assertThat(target.receive().getPayload()).isEqualTo("HELLO".getBytes());
    }
}
}

这是我使用testBinder编写测试的示例springBootApplication，下面是我面临的问题。
在sampleConsumers.java
1.当@Component启用时，出现以下错误@Component（Enabled）//@EnableAutoConfiguration（Disabled）//@ComponentScan（“com.example.sampleproject.services“）（Disabled）
原因：com.amazonaws.services.dynamodbv2.model.AmazonDynamoDBException：请求中包含的安全令牌已过期（服务：AmazonDynamoDBv2;状态代码：400;错误代码：ExpiredTokenException;请求ID：*****************;代理：null）
1.当@Component被禁用且@EnableAutoConfiguration被启用时，出现以下错误//@Component（Disabled）@EnableAutoConfiguration（Enabled）
com.example.sampleproject. consumptions.SampleConsumer中的字段sampleService需要找不到类型为“com.example.sampleproject.services.SampleService”的bean。
进样点具有以下注解：- @org.springframework.beans.factory.annotation.Autowired（required=true）
由于：org.springframework.beans.factory.NoSuchBeanDefinitionException：没有类型为“com.example.sampleproject.services.SampleService”的合格Bean可用：预期至少有1个符合autowire候选条件的bean。依赖关系注解：{@org.springframework.beans.factory.annotation.Autowired（required=true）}
1.当@EnableAutoConfiguration和@ComponentScan正常工作时//@Component（Disabled）@EnableAutoConfiguration（Enabled）@ComponentScan（“com.example.sampleproject.services“）（Enabled）
a）为什么这个实现不使用@component？B）为什么我们总是需要使用@EnableAutoConfiguration和@ComponentScan注解？c）为什么mockito不使用这个？如何解决mockito问题？
1.根据mock，这个Assert应该失败，其中“hello”被替换为“mockedString”，但mock不起作用。例如：when（sampleService2.convertStringToLowerCase（ArgumentMatchers.any（）））.thenReturn（“mockedString”）;
assertThat（target.receive（）.getPayload（））.isEqualTo（“HELLO”.getBytes（））;
1.为什么这个实现不能与@Component一起工作，但它可以与@EnableAutoConfiguration和@ComponentScan注解一起工作？

SpringCloudStream TestChannelBinderConfiguration Junits测试不支持Mockito

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