在進行Web服務端開發的時候,發佈前一般須要測試一遍。對於一個大一點的項目,最好的辦法是寫個自動化測試程序。
以Groovy爲例,寫測試代碼以前一般的有以下幾個操做git
對於你來講,你須要的可能僅僅是post,get等幾個簡單的操做而已,而上面的操做更是可能佔用你整個開發過程的大部分時間。github
Orz....項目進度沒跟上,又要加班了。。。。shell
要是有一種語言,自己自帶post,get這樣的函數那該多好啊,測試程序嘩啦嘩啦就寫完了!apache
經過Groovy構建一個腳本環境,自帶post,get這些經常使用的函數json
不再用手動引用庫了,不再用手動import類了,不再用複習好長好長的文檔了,寫測試腳本再也腰不疼、腿不麻了!bash
groovy自己是一個強大的腳本引擎,同時也是高度可定製化的。
在groovy編譯腳本的時候,能夠爲腳本指定一個基類,這個基類的全部方法和屬性均可以直接在腳本引用。app
首先,先新建一個工程,這裏用gradle做爲構建工具,取工程名爲httpbatch
。eclipse
新建build.gradle
maven
apply plugin: 'groovy' apply plugin: 'eclipse' apply plugin: 'application' mainClassName = 'com.kasonyang.httpbatch.Application' repositories { mavenCentral() } dependencies { compile 'org.codehaus.groovy:groovy-all:2.3.10' compile 'org.apache.httpcomponents:httpclient:4.5' }
工程引用了apache的httpclient組件,並指定主類爲com.kasonyang.httpbatch.Application
函數
生成Eclipse工程
$ gradle eclipse
而後咱們就可使用Eclipse導入工程了。
建立主類Application.groovy
package com.kasonyang.httpbatch import com.kasonyang.httpbatch.test.TestException import org.codehaus.groovy.control.CompilerConfiguration class Application { static void printUsage(){ println """ usage : httpbatch file #execute a file or httpbatch -s #enter shell mode """ } static void main(String[] args) { if(args.length<1){ printUsage() return } def reader,scriptStr = '' switch(args[0]){ case '-s': print ">" reader = System.in reader.eachLine {it-> scriptStr += it + '\n' if(it == ''){ runScript(scriptStr) scriptStr = '' }//else{ print '>' //} } break default: def file = new File(args[0]) runScript(file) break } } private static String getExceptionStack(Exception ex,String clsName){ String msg = "" for(stack in ex.stackTrace){ if(stack.className == clsName){ def fileName = stack.fileName def lineNumber = stack.lineNumber.toString() msg += ("\tFile:${fileName}(${lineNumber})") } } msg } private static runScript(def it){ def config = new CompilerConfiguration() config.scriptBaseClass = 'com.kasonyang.httpbatch.HttpBatchScript' def shell = new GroovyShell(config) def scriptClass try{ //shell.evaluate(file) def script = shell.parse(it) scriptClass = script.class.name def stateReturn = script.run() //System.out.println(stateReturn) }catch(TestException ex){ println "test fail:" println getExceptionStack(ex,scriptClass) println "\texcepted:${ex.excepted}\n\tactual:${ex.actual}" }catch(Exception ex){ println ex.message println getExceptionStack(ex,scriptClass) }catch(RuntimeException ex){ println ex.message println getExceptionStack(ex,scriptClass) } } }
Application指定了腳本的基類爲com.kasonyang.httpbatch.HttpBatchScript
,這個類就是主題的主體。
先上代碼
package com.kasonyang.httpbatch import com.kasonyang.httpbatch.test.TestException import com.kasonyang.httprequest.HttpRequest import com.kasonyang.httprequest.HttpResponse import groovy.lang.Binding import groovy.lang.Script; abstract class HttpBatchScript extends Script { private http = new HttpRequest(); HttpResponse $$ Closure beforeGo,beforePost,afterGo,afterPost Closure testFail private String base = '' private String path = '' private String trimPath(String path,boolean left=true,boolean right=true){ int start =(left && path.startsWith('/')) ? 1 : 0; int end = (right && path.endsWith('/')) ? path.length()-1 : path.length(); path.substring(start,end) } private def getUri(uri){ base + (base?'/':'') + path + (path?'/':'') + trimPath(uri,true,false) } def base(){ this.base = '' } /** * set the base path of request * @param path the base path * @return */ def base(String path){ this.base = trimPath(path) } def enter(){ this.path = '' } /** * enter a directory in base * @param path * @return */ def enter(String path){ this.path = trimPath(path) } /** * submit a get request * @param uri the request uri * @param params the query params * @param callback call after request * @return */ HttpResponse go(String uri,Map params,Closure callback){ def httpGet = http.createGet(getUri(uri),params) this.beforeGo?.call(httpGet) def response = http.execute(httpGet) this.$$ = response if(callback) callback.call() this.afterGo?.call(response) return this.$$ } HttpResponse go(String uri,Closure callback){ return go(uri,[:],callback) } HttpResponse go(String uri,Map params){ return go(uri,params,null) } HttpResponse go(String uri){ return this.go(uri,null) } /** * submit a post request * @param uri the request uri * @param params the post params * @param callback call after request * @return */ HttpResponse post(String uri,Map params,Closure callback){ def httpPost = http.createPost(getUri(uri),params) this.beforePost?.call(httpPost) def response = http.execute(httpPost) this.$$ = response if(callback) callback.call() this.afterPost?.call(response) return this.$$ } HttpResponse post(String uri,Closure callback){ return post(uri,[:],callback) } HttpResponse post(String uri,Map params){ return post(uri,params,null) } HttpResponse post(String uri){ return this.post(uri,null) } /** * set the beforeGo callback,which whill be call before every get request * @param callback */ void beforeGo(Closure callback){ this.beforeGo = callback } /** * set the beforePost callback,which whill be call before every post request * @param callback */ void beforePost(Closure callback){ this.beforePost = callback } /** * set the callback,which whill be call when test fail * @param cb */ void testFail(Closure cb){ this.testFail = cb } /** * set the callback,which whill be call after every get request * @param callback */ void afterGo(Closure callback){ this.afterGo = callback } /** * set the callback,which whill be call after every post request * @param callback */ void afterPost(Closure callback){ this.afterPost = callback } /** * test whether it is true * @param value */ void testTrue(Object value){ testEquals(true,value) } /** * test whether actual equals the excepted * @param excepted * @param actual */ void testEquals(Object excepted,Object actual){ if(excepted != actual){ def ex = new TestException(excepted,actual) if(this.testFail){ testFail(ex) }else{ throw ex } } } /** * test whether it is null * @param value */ void testNull(Object value){ testEquals(null,value) } }
這個類主要定義了一個public屬性$$
還有幾個public方法,也就是post、go,和一些其它可能須要用到的函數。
由於get方法在groovy裏有特殊意義,這裏使用go方法名代替了get。
提示:這裏使用了另外兩個類,HttpRequest和HttpResponse,是自定義的兩個Class,因爲篇幅的緣由,這裏就再也不貼代碼了,具體實現可前往Github查看。
我已經把所有源碼放到了Github,感興趣的能夠前往查看。
地址:https://github.com/kasonyang/httpbatch
$ gradle installDist
程序被輸出到build/install/httpbatch
目錄下,將bin
目錄添加到環境變量PATH
中。
go "YOU_URL"//對你要測試的URL提交get請求 testEquals 200,$$.statusCode//狀態碼爲 200? def text = $$.text //get the response as text def json = $$.json//get the response as json println text //output the response //這裏添加你的測試邏輯代碼 println "Test successfully!"
$ httpbatch example.hb