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Testing Hystrix Command Properties Configuration in Netflix/Hystrix

This test suite validates command properties configuration in the Netflix Hystrix library using Spring Framework integration. It extends the basic command properties testing functionality while incorporating Spring-specific dependency injection and configuration capabilities.

Test Coverage Overview

The test suite provides comprehensive coverage of Hystrix command properties configuration in a Spring context.

Key areas tested include:

Command property initialization and injection
Spring bean configuration for command properties
Integration between Hystrix commands and Spring AOP
CGLIB-based proxy configuration validation

Implementation Analysis

The testing approach leverages Spring’s testing framework alongside JUnit to verify command property behaviors.

Notable implementation patterns include:

Extension of BasicCommandPropertiesTest for core functionality
Spring context configuration using Java-based configuration
Autowired dependency injection for service components
CGLIB-based AOP configuration integration

Technical Details

Testing infrastructure includes:

SpringJUnit4ClassRunner for test execution
ContextConfiguration annotation for test context setup
AopCglibConfig for aspect-oriented programming support
Configurable annotation for runtime configuration
Bean definitions for service components

Best Practices Demonstrated

The test suite exemplifies several testing best practices:

Clean separation of concerns between base test functionality and Spring-specific configuration
Proper use of dependency injection in test contexts
Consistent configuration management through Java-based Spring configuration
Effective use of test inheritance for code reuse

netflix/hystrix

hystrix-contrib/hystrix-javanica/src/test/java/com/netflix/hystrix/contrib/javanica/test/spring/configuration/command/CommandPropertiesTest.java

            
/**
 * Copyright 2015 Netflix, Inc.
 *
 * 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 com.netflix.hystrix.contrib.javanica.test.spring.configuration.command;

import com.netflix.hystrix.contrib.javanica.test.common.configuration.command.BasicCommandPropertiesTest;
import com.netflix.hystrix.contrib.javanica.test.spring.conf.AopCglibConfig;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Configurable;
import org.springframework.context.annotation.Bean;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(classes = {AopCglibConfig.class, CommandPropertiesTest.CommandPropertiesTestConfig.class})
public class CommandPropertiesTest extends BasicCommandPropertiesTest {

    @Autowired
    private BasicCommandPropertiesTest.UserService userService;

    @Override
    protected UserService createUserService() {
        return userService;
    }


    @Configurable
    public static class CommandPropertiesTestConfig {

        @Bean
        public UserService userService() {
            return new UserService();
        }
    }

}