public class

LogBatteryInformationRule

extends LoggingBaseRule
java.lang.Object
   ↳ org.junit.rules.ExternalResource
     ↳ android.support.test.rule.logging.LoggingBaseRule
       ↳ android.support.test.rule.logging.LogBatteryInformationRule

Class Overview

When applied to a test class this Rule resets battery information ("stats") before test method execution. The Rule then collects battery information after test method execution and logs it to a file on external storage. The default file location is maintained at getTestDir(String, String, int). The Rule performs these actions through the execution of a dumpsys on the batterystats service.

If the API level is less than 21 (Lollipop) this rule will do nothing since this dumpsys command isn't supported. This TestRule has limited use for short running tests and is meant for very long running tests.

The Rule's before() and after() methods can also be used for logging battery information across a test suite by manually invoking the methods in a ERROR(RunListener/org.junit.runner.notification.RunListener RunListener).

Usage: \@Rule public LogBatteryInformationRule mLogBatteryInformationRule = new LogBatteryInformationRule();

Summary

Public Constructors
LogBatteryInformationRule()
LogBatteryInformationRule(File logFileOutputDirectory, String fileName)
Public Methods
void afterTest()
void beforeTest()
String getDefaultLogFileName()
Return the default log file name for this rule class.
[Expand]
Inherited Methods
From class android.support.test.rule.logging.LoggingBaseRule
From class org.junit.rules.ExternalResource
From class java.lang.Object
From interface org.junit.rules.TestRule

Public Constructors

public LogBatteryInformationRule ()

public LogBatteryInformationRule (File logFileOutputDirectory, String fileName)

Public Methods

public void afterTest ()

public void beforeTest ()

public String getDefaultLogFileName ()

Return the default log file name for this rule class. A null return value indicates the rule doesn't log to a file.

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