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DisableOnAndroidDebug

public class DisableOnAndroidDebug
extends Object implements TestRule

java.lang.Object
   ↳ android.support.test.rule.DisableOnAndroidDebug


The DisableOnAndroidDebug Rule allows you to label certain rules to be disabled when debugging.

The most illustrative use case is for tests that make use of the Timeout rule, when ran in debug mode the test may terminate on timeout abruptly during debugging. Developers may disable the timeout, or increase the timeout by making a code change on tests that need debugging and remember revert the change afterwards or rules such as Timeout that may be disabled during debugging may be wrapped in a DisableOnDebug.

The important benefit of this feature is that you can disable such rules without any making any modifications to your test class to remove them during debugging.

This does nothing to tackle timeouts or time sensitive code under test when debugging and may make this less useful in such circumstances.

Example usage:

 public static class DisableTimeoutOnDebugSampleTest {

     @Rule
     public TestRule timeout = new DisableOnAndroidDebug(new Timeout(20));

     @Test
     public void myTest() {
         int i = 0;
         assertEquals(0, i); // suppose you had a break point here to inspect i
     }
 }
 

Summary

Public constructors

DisableOnAndroidDebug(TestRule rule)

Wrap another TestRule and conditionally disable it when a debugger is attached.

Public methods

final Statement apply(Statement base, Description description)

boolean isDebugging()

Returns true if the VM has a debugger connected.

Inherited methods

From class java.lang.Object
From interface org.junit.rules.TestRule

Public constructors

DisableOnAndroidDebug

DisableOnAndroidDebug (TestRule rule)

Wrap another TestRule and conditionally disable it when a debugger is attached.

Parameters
rule TestRule: to disable during debugging

Public methods

apply

Statement apply (Statement base, 
                Description description)

Parameters
base Statement
description Description
Returns
Statement

isDebugging

boolean isDebugging ()

Returns true if the VM has a debugger connected. This method may be used by test classes to take additional action to disable code paths that interfere with debugging if required.

Returns
boolean true if a debugger is connected, false otherwise
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