- 在工程的oncreate()方法添加如下代码,目的是创建ec文件.
String DEFAULT_COVERAGE_FILE_PATH = "/mnt/sdcard/coverage.ec";
File file = new File(DEFAULT_COVERAGE_FILE_PATH);
if (!file.exists()) {
try {
file.createNewFile();
} catch (IOException e) {
e.printStackTrace();
}
}
2.在工程的ondestory()方法添加如下代码,目的是写入数据.
OutputStream out = null;
try {
out = new FileOutputStream("/mnt/sdcard/coverage.ec", 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();
}
}
}
3.build里面增加如下内容,目的是为了生成报告.ec文件放在./build/outputs目录下.
apply plugin: 'jacoco'
task jacocoTestReport (type:JacocoReport) {
group = "Reporting"
description = "Generate Jacoco coverage reports on the build."
classDirectories = fileTree(
dir: "${project.buildDir}/intermediates/classes",
excludes: ['**/R.class',
'**/R$*.class',
'**/*$ViewInjector*.*',
'**/BuildConfig.*',
'**/Manifest*.*']
)
def coverageSourceDirs = [
"src/main/java"
]
additionalSourceDirs = files(coverageSourceDirs)
sourceDirectories = files(coverageSourceDirs)
executionData = fileTree(dir:'./build/outputs',include:'**/*.ec')
reports {
xml.enabled = true
html.enabled = true
}
}
4. AndroidManifest.xml里面需要确认一下写sd的权限
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
5.在build.gradle的buildTypes添加一行代码testCoverageEnabled = true
6.生成apk后,进行手动测试,测试完毕后使用adb pull /sdcard/coverage.ec d:\test 进行导出,然后将ec文件放到./build/outputs目录下,执行命令:gradlew jacocoTestReport,然后就可以看报告了.
同时,上面这个做法可以完美解决这个报错: