HostUtils

public final class HostUtils
extends Object

java.lang.Object
↳	com.android.tradefed.lite.HostUtils

Implements some useful utility methods for running host tests.

This implements a few methods for finding tests on the host and faking execution of JUnit tests so we can "dry run" them.

Summary

Public methods
`static`	`getJUnitClasses( classNames, jarAbsPaths, ClassLoader pcl)`
`static`	`getJUnitClasses( classNames, jarAbsPaths, excludePaths, ClassLoader pcl)` Gets JUnit4 test cases from provided classnames and jar paths.
`static boolean`	`hasJUnitAnnotation(Class<?> classObj)` Checks whether a class looks like a JUnit test or not.
`static boolean`	`testLoadClass(String className, URLClassLoader cl, String jarName)` Tests whether the class is a suitable test class or not.

Public methods

getJUnitClasses

public static  getJUnitClasses ( classNames, 
                 jarAbsPaths, 
                ClassLoader pcl)

Parameters
`classNames`
`jarAbsPaths`
`pcl`	`ClassLoader`

Returns

getJUnitClasses

public static  getJUnitClasses ( classNames, 
                 jarAbsPaths, 
                 excludePaths, 
                ClassLoader pcl)

Gets JUnit4 test cases from provided classnames and jar paths.

Parameters
`classNames`	: Classes that exist in the current class path to check for JUnit tests
`jarAbsPaths`	: Jars to search for classes with the test annotations.
`excludePaths`
`pcl`	`ClassLoader`

Returns
	a list of class objects that are test classes to execute.

Throws
	IllegalArgumentException

hasJUnitAnnotation

public static boolean hasJUnitAnnotation (Class<?> classObj)

Checks whether a class looks like a JUnit test or not.

Parameters
`classObj`	`Class`: Class to examine for the annotation

Returns
`boolean`	whether the class object has the JUnit4 test annotation

testLoadClass

public static boolean testLoadClass (String className, 
                URLClassLoader cl, 
                String jarName)

Tests whether the class is a suitable test class or not.

In this case, suitable means it is a valid JUnit test class using one of the standard runners or a subclass thereof. The class should also load, obviously.

Returns
`boolean`	true if we should consider this class a test class, false otherwise