Summary: Methods | Inherited Methods

Checks

Kotlin |Java

Note: This library does not have Kotlin reference docs, but you can call the Java API from Kotlin source code. To learn more, see Kotlin's interop documentation.

public final class Checks
extends Object

java.lang.Object
↳	androidx.test.espresso.intent.Checks

---

Substitute for Guava Preconditions to avoid guava as a dep.

Summary

Public methods
static void	checkArgument(boolean expression, Object errorMessage)
static void	checkArgument(boolean expression)
static void	checkArgument(boolean expression, String errorMessageTemplate, Object... errorMessageArgs)
static <T> T	checkNotNull(T reference, Object errorMessage)
static <T> T	checkNotNull(T reference)
static <T> T	checkNotNull(T reference, String errorMessageTemplate, Object... errorMessageArgs)
static void	checkState(boolean expression, Object errorMessage)
static void	checkState(boolean expression, String errorMessageTemplate, Object... errorMessageArgs)

Inherited methods
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()

Public methods

checkArgument

public static void checkArgument (boolean expression, 
                Object errorMessage)

Parameters
expression	boolean
errorMessage	Object

checkArgument

public static void checkArgument (boolean expression)

Parameters
expression	boolean

checkArgument

public static void checkArgument (boolean expression, 
                String errorMessageTemplate, 
                Object... errorMessageArgs)

Parameters
expression	boolean
errorMessageTemplate	String
errorMessageArgs	Object

checkNotNull

public static T checkNotNull (T reference, 
                Object errorMessage)

Parameters
reference	T
errorMessage	Object

Returns
T

checkNotNull

public static T checkNotNull (T reference)

Parameters
reference	T

Returns
T

checkNotNull

public static T checkNotNull (T reference, 
                String errorMessageTemplate, 
                Object... errorMessageArgs)

Parameters
reference	T
errorMessageTemplate	String
errorMessageArgs	Object

Returns
T

checkState

public static void checkState (boolean expression, 
                Object errorMessage)

Parameters
expression	boolean
errorMessage	Object

checkState

public static void checkState (boolean expression, 
                String errorMessageTemplate, 
                Object... errorMessageArgs)

Parameters
expression	boolean
errorMessageTemplate	String
errorMessageArgs	Object