接口测试中Groovy可以作为上下游接口参数化传递的前置脚本和后置脚本使用，无缝衔接Java语法，groovy的引入对于动态参数化的设置方便很多。
其中核心部分就是接入groovy的引擎，下面介绍groovy引擎的实现逻辑。
- pom文件groovy核心依赖
<dependency>
<groupId>org.codehaus.groovy</groupId>
<artifactId>groovy</artifactId>
<version>3.0.7</version>
</dependency>
<dependency>
<groupId>org.kohsuke</groupId>
<artifactId>groovy-sandbox</artifactId>
<version>1.19</version>
</dependency>
1、Groovy引擎中添加常用的import
静态代码块中引入
一些基础的依赖，比如：JSONObject、JSONArray、JsonPath等工具类
static {
config = new CompilerConfiguration();
// 添加默认import
config.addCompilationCustomizers(new ImportCustomizer().addImports(
"com.taltools.script.exception.StepFailureException",
"com.jayway.jsonpath.JsonPath",
"com.alibaba.fastjson.JSONObject",
"com.alibaba.fastjson.JSONArray",
"groovy.json.JsonSlurper",
"org.apache.commons.codec.digest.DigestUtils",
"org.apache.commons.codec.digest.HmacUtils"));
// 添加线程中断拦截器
config.addCompilationCustomizers(new ASTTransformationCustomizer(ThreadInterrupt.class));
// 添加线程中断拦截器，可中断超时线程，当前定义超时时间为30s
config.addCompilationCustomizers(new ASTTransformationCustomizer(Collections.singletonMap("value", INTERRUPT_TIME_OUT), TimedInterrupt.class));
// 沙盒环境
config.addCompilationCustomizers(new SandboxTransformer());
NO_RUNTIME_SANDBOX = new NoRuntimeSandbox();
NO_SYSTEM_HARM_SANDBOX = new NoSystemHarmSandbox();
}
- 设置缓存容量&过期时间
{
lruCache = CacheBuilder.newBuilder()
.maximumSize(1000) //最大容量
.expireAfterAccess(12, TimeUnit.HOURS) //缓存过期时长
.concurrencyLevel(Runtime.getRuntime().availableProcessors())// 设置并发级别为cpu核心数
.build();
}
2、Groovy核心实现，上下文参数绑定
- 上下文参数变量名绑定
@Override
public ScriptContext runScript(String scriptContent, ScriptContext context) {
if (scriptContent == null || scriptContent.isEmpty()) {
throw new IllegalArgumentException("输入的script内容不能为空");
}
log.debug("执行Groovy脚本: {}", scriptContent);
Binding binding = generateBinding(context);
parseScript(scriptContent, binding).run();
ScriptContext retContext = new ScriptContext();
retContext.setVariables(binding.getVariables());
return retContext;
}
public long getCacheCount() {
return lruCache.size();
}
protected Script parseScript(String scriptContent, Binding binding) {
String md5 = DigestUtils.md5Hex(scriptContent);
String sha1 = DigestUtils.sha1Hex(scriptContent);
String key = md5 + "-" + sha1;
Class<? extends Script> scriptClass = lruCache.getIfPresent(key);
if (scriptClass == null) {
registerSandbox();
GroovyShell shell = new GroovyShell(config);
Script script = shell.parse(scriptContent);
scriptClass = script.getClass();
lruCache.put(key, scriptClass);
log.debug("未命中脚本LRU缓存，创建脚步对象并存入缓存，当前缓存数量: {}", getCacheCount());
} else {
log.debug("命中脚本LRU缓存, key: {}, 当前缓存数量: {}", key, getCacheCount());
}
return InvokerHelper.createScript(scriptClass, binding);
}
3、调佣Groovy引擎设置参数名测试
- 在单元测试中测试接受groovy脚本的返回值
@Test
public void testGroovy(){
String req = " outParams['name'] = testGroovy();\n" +
" static String testGroovy(){\n" +
" def name = 'java'\n" +
" def greeting = \"Hello ${name}\"\n" +
" return greeting\n" +
" }";
GroovyEngine engine = new GroovyEngine();
ScriptContext context = new ScriptContext();
LinkedHashMap<String, Object> outParams = new LinkedHashMap<>();
context.setVariable("outParams",outParams);
ScriptContext ret = engine.runScript(req,context);
System.out.println(JsonUtils.obj2json(ret));
System.out.println(outParams);
}
- 控制台打印结果
- 前端页面效果
关于groovy在接口测试平台中的落地后续不断补充，欢迎关注！Coding测试
