安卓-Jacoco-精准测试应用

海鸥一飞 · 发表于 2018-5-30 16:00:03

不依赖源码执行
接口测试也能直观看出覆盖度
知道什么样的用例保证哪块的代码，更好的精准度测试

1.实现jacoco Instrumentation操作（后面通过命令直接启动该instrument，最下面有），注意最后启动了 InstrumentedActivity

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public class JacocoInstrumentation extends Instrumentation
@Override public void onCreate(Bundle arguments) { super.onCreate(arguments); DEFAULT_COVERAGE_FILE_PATH = "/sdcard/cover.ec";
File file = new File(DEFAULT_COVERAGE_FILE_PATH); if (!file.exists()) { try { file.createNewFile(); } catch (IOException e) { Log.d(TAG, "异常 : " + e); e.printStackTrace(); } } if (arguments != null) { //mCoverage = getBooleanArgument(arguments, "coverage"); mCoverageFilePath = arguments.getString("coverageFile"); }
mIntent = new Intent(getTargetContext(), InstrumentedActivity.class); mIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); start(); }

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2.在InstrumentedActivity onDestroy设置监听，当触发的时候触发生成jacoco覆盖率文件

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/> 权限复制代码InstrumentedActivity extends MainActivity { public static String TAG = "InstrumentedActivity";
private FinishListener mListener;
public void setFinishListener(FinishListener listener) { mListener = listener; }
@Override public void onDestroy() { Log.d(TAG + ".InstrumentedActivity", "onDestroy()"); super.finish(); if (mListener != null) { mListener.onActivityFinished(); } }
}

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3.触发监听的操作

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private void generateCoverageReport() { Log.d(TAG, "generateCoverageReport():" + getCoverageFilePath()); OutputStream out = null; try { out = new FileOutputStream(getCoverageFilePath(), false); Object agent = Class.forName("org.jacoco.agent.rt.RT") .getMethod("getAgent") .invoke(null);
out.write((byte[]) agent.getClass().getMethod("getExecutionData", boolean.class) .invoke(agent, false)); } catch (Exception e) { Log.d(TAG, e.toString(), e); } finally { if (out != null) { try { out.close(); } catch (IOException e) { e.printStackTrace(); } } } }

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海鸥一飞 · 发表于 2018-5-30 16:00:56

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启动：

2.1注册instrumentation,通过instrumentation启动被测应用

adb shell am instrument com.jacs.zhaotang.jscscs/test.JacocoInstrumentation
<instrumentation android:handleProfiling="true" android:label="CoverageInstrumentation" android:name="test.JacocoInstrumentation" android:targetPackage="com.jacs.zhaotang.jscscs"/>

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3.把生成的jacoco覆盖率文件放在指定文件夹，用gradle生成htmlreport

将该文件拖至入app根目录/build/outputs/code-coverage/connected下（文件夹没有的话可新建）

运行gradlew jacocoTestReport

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task jacocoTestReport(type: JacocoReport) { group = "Reporting" description = "Generate Jacoco coverage reports after running tests." reports { xml.enabled = true html.enabled = true } classDirectories = fileTree( dir: './build/intermediates/classes/debug', excludes: ['**/R*.class', '**/*$InjectAdapter.class', '**/*$ModuleAdapter.class', '**/*$ViewInjector*.class' ]) sourceDirectories = files(coverageSourceDirs) executionData = files("$buildDir/outputs/code-coverage/connected/coverage.ec")
doFirst { new File("$buildDir/intermediates/classes/").eachFileRecurse { file -> if (file.name.contains('
)) } } }}

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4.report路径：\jscscs\app\build\reports\jacoco\jacocoTestReport

通过广播驱动生成ec：

<div>
</div>

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)) { file.renameTo(file.path.replace('
)) } } }}[/code]
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4.report路径：\jscscs\app\build\reports\jacoco\jacocoTestReport

通过广播驱动生成ec：

<div>
</div>

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, '
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4.report路径：\jscscs\app\build\reports\jacoco\jacocoTestReport

通过广播驱动生成ec：

<div>
</div>

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)) } } }}[/code]
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4.report路径：\jscscs\app\build\reports\jacoco\jacocoTestReport

通过广播驱动生成ec：

<div>
</div>

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海鸥一飞 · 发表于 2018-5-30 16:01:14

1.注册广播

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public void onReceive(Context context, Intent intent) {
 String url = intent.getStringExtra("url");
 if (Constants.mListener != null) {
 Constants.mListener.onActivityFinished();
 Toast.makeText(context,"notnull", 0).show();
 }else{
 Toast.makeText(context,url, 0).show();
 }
}
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<receiver android:name="test.operationReceiver" android:enabled="true" android:exported="true">
 <intent-filter>
 <action android:name="com.jacs.zhaotang.jscscs.operationReceiver" />
 </intent-filter>
 </receiver>
发送广播：adb shell am broadcast -a com.jacs.zhaotang.jscscs.operationReceiver --es url 'sdsd'

解析xml：

需要提取的覆盖率类型

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public static final String INSTRUCTION="INSTRUCTION";
public static final String BRANCH="BRANCH";
public static final String LINE="LINE";
public static final String COMPLEXITY="COMPLEXITY";
public static final String METHOD="METHOD";
public static final String[] COVERES={INSTRUCTION};

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// 获取当前节点的所有属性节点
 List<Attribute> list = node.attributes();
 // 遍历属性节点
 for (Attribute attr : list) {
 if (node.getName().equals("counter")) { // 节点等于 counter
 if (needCollect(attr.getText()) || is) { // 当属性等于INSTRUCTION拿出covered // INSTRUCTION // 拿出该covered
 is = true;
 }
 if (attr.getName().equals("covered") && is) {
 String p=getFristAttributeText(node.getParent());
 data += node.getParent().getName() + " - "
 + p + " --- "
 + currentCovered+"-"+attr.getName() + " ----- " + attr.getText()
 + " ";
 is = false;
 break;
 }

 }

 }

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获取A和B两次代码的覆盖率

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method - unRegisterObserver --- INSTRUCTION-covered ----- 14
method - getLastLocation --- INSTRUCTION-covered ----- 18
method - setCachedLocation --- INSTRUCTION-covered ----- 0
method - getCachedLocation --- INSTRUCTION-covered ----- 11
method - setCachedLocationTime --- INSTRUCTION-covered ----- 0
method - getCacheLocationTime --- INSTRUCTION-covered ----- 11
method - hasCachedLocation --- INSTRUCTION-covered ----- 10
method - <init> --- INSTRUCTION-covered ----- 6
method - onReceive --- INSTRUCTION-covered ----- 10
Spent 785 //消耗时间

打印A/B两次的不同覆盖值

A: class - com/android/browser/AutoLoginLinearLayout --- INSTRUCTION-covered ----- 20
B: class - com/android/browser/AutoLoginLinearLayout --- INSTRUCTION-covered ----- 0

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安卓-Jacoco-精准测试应用

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