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Validating AspectJ Cache Implementation in Netflix Hystrix

This test suite validates caching functionality in the Hystrix framework using AspectJ compile-time weaving. It extends BasicCacheTest to verify cache behavior and proper initialization of UserService components with specific environment configurations.

Test Coverage Overview

The test suite provides comprehensive coverage of Hystrix’s caching mechanisms through AspectJ integration.

Key areas tested include:

UserService initialization and configuration
Cache behavior validation
Compile-time weaving setup
Environment property configuration

Implementation Analysis

The testing approach utilizes inheritance from BasicCacheTest while implementing AspectJ-specific configurations. The implementation leverages compile-time weaving mode through system property settings and custom service initialization patterns.

Technical patterns include:

Test inheritance for reusability
Custom service factory method implementation
Environment-specific configuration setup

Technical Details

Testing tools and configuration:

JUnit test framework
AspectJ compile-time weaving
System property configuration for weaving mode
UserService initialization framework
Hystrix caching infrastructure

Best Practices Demonstrated

The test implementation showcases several testing best practices in Java environment.

Notable practices include:

Proper test inheritance structure
Clean separation of concerns
Environment setup in @BeforeClass
Factory method pattern for service creation
Clear initialization workflow

netflix/hystrix

hystrix-contrib/hystrix-javanica/src/ajcTest/java/com/netflix/hystrix/contrib/javanica/test/aspectj/cache/CacheTest.java

            
/**
 * Copyright 2016 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.aspectj.cache;

import com.netflix.hystrix.contrib.javanica.test.common.cache.BasicCacheTest;
import org.junit.BeforeClass;

/**
 * Created by dmgcodevil
 */
public class CacheTest extends BasicCacheTest {
    @BeforeClass
    public static void setUpEnv() {
        System.setProperty("weavingMode", "compile");
    }

    @Override
    protected UserService createUserService() {
        UserService userService = new UserService();
        userService.init();
        return userService;
    }
}