LogBatteryInformationRule

public class LogBatteryInformationRule
extends LoggingBaseRule

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

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当应用于测试类时，此Rule在测试方法执行之前重置电池信息（“统计信息”）。 Rule然后在测试方法执行后收集电池信息并将其记录到外部存储器上的文件中。 默认文件位置保持在getTestDir(String, String, int) 。 该规则通过在batterystats服务上执行转储来执行这些操作。

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 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() 返回此规则类的默认日志文件名称。

Inherited methods
From class android.support.test.rule.logging.LoggingBaseRule final void after() final Statement apply(Statement base, Description description) final void before() String getLogFileName() File getLogFileOutputDirectory() String getPackageNameUnderTest() String getTestClass() String getTestName() int getTestRunNumber() void setTestRunNumber(int testRunNumber) 向 Rule指示这是在测试仪器中正在调用测试方法的时间 testRunNumber 。
From class org.junit.rules.ExternalResource void after() Statement apply(Statement arg0, Description arg1) void before()
From class java.lang.Object Object clone() boolean equals(Object arg0) void finalize() final Class<?> getClass() int hashCode() final void notify() final void notifyAll() String toString() final void wait(long arg0, int arg1) final void wait(long arg0) final void wait()
From interface org.junit.rules.TestRule abstract Statement apply(Statement arg0, Description arg1)

Public constructors

LogBatteryInformationRule

LogBatteryInformationRule ()

LogBatteryInformationRule

LogBatteryInformationRule (File logFileOutputDirectory, 
                String fileName)

Parameters
logFileOutputDirectory	File
fileName	String

Public methods

afterTest

void afterTest ()

beforeTest

void beforeTest ()

getDefaultLogFileName

String getDefaultLogFileName ()

返回此规则类的默认日志文件名称。 空返回值表示规则不会记录到文件。

Returns
String