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Summary: Protected Ctors | Methods | Inherited Methods

# Assert

`public class Assert`
`extends Object` ``

java.lang.Object
↳ | junit.framework.Assert

Known direct subclasses TestCase
TestCase | A test case defines the fixture to run multiple tests.

Known indirect subclasses ActivityInstrumentationTestCase<T extends Activity>, ActivityInstrumentationTestCase2<T extends Activity>, ActivityTestCase, ActivityUnitTestCase<T extends Activity>, AndroidTestCase, ApplicationTestCase<T extends Application>, InstrumentationTestCase, LoaderTestCase, ProviderTestCase<T extends ContentProvider>, ProviderTestCase2<T extends ContentProvider>, ServiceTestCase<T extends Service>, SingleLaunchActivityTestCase<T extends Activity>, SyncBaseInstrumentation, TestSuiteBuilder.FailedToCreateTests
ActivityInstrumentationTestCase<T extends Activity> | This class is deprecated. new tests should be written using `ActivityInstrumentationTestCase2`, which provides more options for configuring the Activity under test
ActivityInstrumentationTestCase2<T extends Activity> | This class is deprecated. Use ActivityTestRule instead. New tests should be written using the Android Testing Support Library.
ActivityTestCase | This class is deprecated. New tests should be written using the Android Testing Support Library.
ActivityUnitTestCase<T extends Activity> | This class is deprecated. Write Local Unit Tests instead.
AndroidTestCase | This class is deprecated. Use InstrumentationRegistry instead. New tests should be written using the Android Testing Support Library.
ApplicationTestCase<T extends Application> | This class is deprecated. Use InstrumentationRegistry instead. New tests should be written using the Android Testing Support Library.
InstrumentationTestCase | This class is deprecated. Use InstrumentationRegistry instead. New tests should be written using the AndroidX Test Library.
LoaderTestCase | A convenience class for testing `Loader`s.
ProviderTestCase<T extends ContentProvider> | This class is deprecated. this class extends InstrumentationTestCase but should extend AndroidTestCase. Use ProviderTestCase2, which corrects this problem, instead.
ProviderTestCase2<T extends ContentProvider> | This test case class provides a framework for testing a single `ContentProvider` and for testing your app code with an isolated content provider.
ServiceTestCase<T extends Service> | This class is deprecated. Use ServiceTestRule instead. New tests should be written using the Android Testing Support Library.
SingleLaunchActivityTestCase<T extends Activity> | This class is deprecated. Use ActivityTestRule instead. New tests should be written using the Android Testing Support Library.
SyncBaseInstrumentation | This class is deprecated. Use InstrumentationRegistry instead. New tests should be written using the Android Testing Support Library.
TestSuiteBuilder.FailedToCreateTests | This class is deprecated. New tests should be written using the Android Testing Support Library.

A set of assert methods. Messages are only displayed when an assert fails.

## Summary

### Protected constructors
`Assert()` Protect constructor since it is a static only class

### Public methods
`static void` | `assertEquals(boolean expected, boolean actual)` Asserts that two booleans are equal.
`static void` | `assertEquals(String message, long expected, long actual)` Asserts that two longs are equal.
`static void` | `assertEquals(short expected, short actual)` Asserts that two shorts are equal.
`static void` | `assertEquals(String message, String expected, String actual)` Asserts that two Strings are equal.
`static void` | `assertEquals(String message, int expected, int actual)` Asserts that two ints are equal.
`static void` | `assertEquals(Object expected, Object actual)` Asserts that two objects are equal.
`static void` | `assertEquals(String message, boolean expected, boolean actual)` Asserts that two booleans are equal.
`static void` | `assertEquals(String expected, String actual)` Asserts that two Strings are equal.
`static void` | `assertEquals(String message, short expected, short actual)` Asserts that two shorts are equal.
`static void` | `assertEquals(String message, Object expected, Object actual)` Asserts that two objects are equal.
`static void` | `assertEquals(char expected, char actual)` Asserts that two chars are equal.
`static void` | `assertEquals(byte expected, byte actual)` Asserts that two bytes are equal.
`static void` | `assertEquals(double expected, double actual, double delta)` Asserts that two doubles are equal concerning a delta.
`static void` | `assertEquals(String message, char expected, char actual)` Asserts that two chars are equal.
`static void` | `assertEquals(float expected, float actual, float delta)` Asserts that two floats are equal concerning a delta.
`static void` | `assertEquals(String message, double expected, double actual, double delta)` Asserts that two doubles are equal concerning a delta.
`static void` | `assertEquals(String message, byte expected, byte actual)` Asserts that two bytes are equal.
`static void` | `assertEquals(String message, float expected, float actual, float delta)` Asserts that two floats are equal concerning a positive delta.
`static void` | `assertEquals(long expected, long actual)` Asserts that two longs are equal.
`static void` | `assertEquals(int expected, int actual)` Asserts that two ints are equal.
`static void` | `assertFalse(String message, boolean condition)` Asserts that a condition is false.
`static void` | `assertFalse(boolean condition)` Asserts that a condition is false.
`static void` | `assertNotNull(Object object)` Asserts that an object isn't null.
`static void` | `assertNotNull(String message, Object object)` Asserts that an object isn't null.
`static void` | `assertNotSame(String message, Object expected, Object actual)` Asserts that two objects do not refer to the same object.
`static void` | `assertNotSame(Object expected, Object actual)` Asserts that two objects do not refer to the same object.
`static void` | `assertNull(String message, Object object)` Asserts that an object is null.
`static void` | `assertNull(Object object)` Asserts that an object is null.
`static void` | `assertSame(String message, Object expected, Object actual)` Asserts that two objects refer to the same object.
`static void` | `assertSame(Object expected, Object actual)` Asserts that two objects refer to the same object.
`static void` | `assertTrue(String message, boolean condition)` Asserts that a condition is true.
`static void` | `assertTrue(boolean condition)` Asserts that a condition is true.
`static void` | `fail(String message)` Fails a test with the given message.
`static void` | `fail()` Fails a test with no message.
`static void` | `failNotEquals(String message, Object expected, Object actual)`
`static void` | `failNotSame(String message, Object expected, Object actual)`
`static void` | `failSame(String message)`
`static String` | `format(String message, Object expected, Object actual)`

### Inherited methods
From class `java.lang.Object`
`Object` | `clone()` Creates and returns a copy of this object.
`boolean` | `equals(Object obj)` Indicates whether some other object is "equal to" this one.
`void` | `finalize()` Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.
`final Class<?>` | `getClass()` Returns the runtime class of this `Object`.
`int` | `hashCode()` Returns a hash code value for the object.
`final void` | `notify()` Wakes up a single thread that is waiting on this object's monitor.
`final void` | `notifyAll()` Wakes up all threads that are waiting on this object's monitor.
`String` | `toString()` Returns a string representation of the object.
`final void` | `wait(long timeout, int nanos)` Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object, or some other thread interrupts the current thread, or a certain amount of real time has elapsed.
`final void` | `wait(long timeout)` Causes the current thread to wait until either another thread invokes the `notify()` method or the `notifyAll()` method for this object, or a specified amount of time has elapsed.
`final void` | `wait()` Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object.

## Protected constructors

### Assert

    protected Assert ()

Protect constructor since it is a static only class

## Public methods

### assertEquals

    public static void assertEquals (boolean expected,
                    boolean actual)

Asserts that two booleans are equal.

Parameters
`expected` | `boolean`
`actual` | `boolean`

### assertEquals

    public static void assertEquals (String message,
                    long expected,
                    long actual)

Asserts that two longs are equal. If they are not an AssertionFailedError is thrown with the given message.

Parameters
`message` | `String`
`expected` | `long`
`actual` | `long`

### assertEquals

    public static void assertEquals (short expected,
                    short actual)

Asserts that two shorts are equal.

Parameters
`expected` | `short`
`actual` | `short`

### assertEquals

    public static void assertEquals (String message,
                    String expected,
                    String actual)

Asserts that two Strings are equal.

Parameters
`message` | `String`
`expected` | `String`
`actual` | `String`

### assertEquals

    public static void assertEquals (String message,
                    int expected,
                    int actual)

Asserts that two ints are equal. If they are not an AssertionFailedError is thrown with the given message.

Parameters
`message` | `String`
`expected` | `int`
`actual` | `int`

### assertEquals

    public static void assertEquals (Object expected,
                    Object actual)

Asserts that two objects are equal. If they are not an AssertionFailedError is thrown.

Parameters
`expected` | `Object`
`actual` | `Object`

### assertEquals

    public static void assertEquals (String message,
                    boolean expected,
                    boolean actual)

Asserts that two booleans are equal. If they are not an AssertionFailedError is thrown with the given message.

Parameters
`message` | `String`
`expected` | `boolean`
`actual` | `boolean`

### assertEquals

    public static void assertEquals (String expected,
                    String actual)

Asserts that two Strings are equal.

Parameters
`expected` | `String`
`actual` | `String`

### assertEquals

    public static void assertEquals (String message,
                    short expected,
                    short actual)

Asserts that two shorts are equal. If they are not an AssertionFailedError is thrown with the given message.

Parameters
`message` | `String`
`expected` | `short`
`actual` | `short`

### assertEquals

    public static void assertEquals (String message,
                    Object expected,
                    Object actual)

Asserts that two objects are equal. If they are not an AssertionFailedError is thrown with the given message.

Parameters
`message` | `String`
`expected` | `Object`
`actual` | `Object`

### assertEquals

    public static void assertEquals (char expected,
                    char actual)

Asserts that two chars are equal.

Parameters
`expected` | `char`
`actual` | `char`

### assertEquals

    public static void assertEquals (byte expected,
                    byte actual)

Asserts that two bytes are equal.

Parameters
`expected` | `byte`
`actual` | `byte`

### assertEquals

    public static void assertEquals (double expected,
                    double actual,
                    double delta)

Asserts that two doubles are equal concerning a delta. If the expected value is infinity then the delta value is ignored.

Parameters
`expected` | `double`
`actual` | `double`
`delta` | `double`

### assertEquals

    public static void assertEquals (String message,
                    char expected,
                    char actual)

Asserts that two chars are equal. If they are not an AssertionFailedError is thrown with the given message.

Parameters
`message` | `String`
`expected` | `char`
`actual` | `char`

### assertEquals

    public static void assertEquals (float expected,
                    float actual,
                    float delta)

Asserts that two floats are equal concerning a delta. If the expected value is infinity then the delta value is ignored.

Parameters
`expected` | `float`
`actual` | `float`
`delta` | `float`

### assertEquals

    public static void assertEquals (String message,
                    double expected,
                    double actual,
                    double delta)

Asserts that two doubles are equal concerning a delta. If they are not an AssertionFailedError is thrown with the given message. If the expected value is infinity then the delta value is ignored.

Parameters
`message` | `String`
`expected` | `double`
`actual` | `double`
`delta` | `double`

### assertEquals

    public static void assertEquals (String message,
                    byte expected,
                    byte actual)

Asserts that two bytes are equal. If they are not an AssertionFailedError is thrown with the given message.

Parameters
`message` | `String`
`expected` | `byte`
`actual` | `byte`

### assertEquals

    public static void assertEquals (String message,
                    float expected,
                    float actual,
                    float delta)

Asserts that two floats are equal concerning a positive delta. If they are not an AssertionFailedError is thrown with the given message. If the expected value is infinity then the delta value is ignored.

Parameters
`message` | `String`
`expected` | `float`
`actual` | `float`
`delta` | `float`

### assertEquals

    public static void assertEquals (long expected,
                    long actual)

Asserts that two longs are equal.

Parameters
`expected` | `long`
`actual` | `long`

### assertEquals

    public static void assertEquals (int expected,
                    int actual)

Asserts that two ints are equal.

Parameters
`expected` | `int`
`actual` | `int`

### assertFalse

    public static void assertFalse (String message,
                    boolean condition)

Asserts that a condition is false. If it isn't it throws an AssertionFailedError with the given message.

Parameters
`message` | `String`
`condition` | `boolean`

### assertFalse

    public static void assertFalse (boolean condition)

Asserts that a condition is false. If it isn't it throws an AssertionFailedError.

Parameters
`condition` | `boolean`

### assertNotNull

    public static void assertNotNull (Object object)

Asserts that an object isn't null.

Parameters
`object` | `Object`

### assertNotNull

    public static void assertNotNull (String message,
                    Object object)

Asserts that an object isn't null. If it is an AssertionFailedError is thrown with the given message.

Parameters
`message` | `String`
`object` | `Object`

### assertNotSame

    public static void assertNotSame (String message,
                    Object expected,
                    Object actual)

Asserts that two objects do not refer to the same object. If they do refer to the same object an AssertionFailedError is thrown with the given message.

Parameters
`message` | `String`
`expected` | `Object`
`actual` | `Object`

### assertNotSame

    public static void assertNotSame (Object expected,
                    Object actual)

Asserts that two objects do not refer to the same object. If they do refer to the same object an AssertionFailedError is thrown.

Parameters
`expected` | `Object`
`actual` | `Object`

### assertNull

    public static void assertNull (String message,
                    Object object)

Asserts that an object is null. If it is not an AssertionFailedError is thrown with the given message.

Parameters
`message` | `String`
`object` | `Object`

### assertNull

    public static void assertNull (Object object)

Asserts that an object is null. If it isn't an `AssertionError` is thrown. Message contains: Expected: but was: object

Parameters
`object` | `Object`: Object to check or `null`

### assertSame

    public static void assertSame (String message,
                    Object expected,
                    Object actual)

Asserts that two objects refer to the same object. If they are not an AssertionFailedError is thrown with the given message.

Parameters
`message` | `String`
`expected` | `Object`
`actual` | `Object`

### assertSame

    public static void assertSame (Object expected,
                    Object actual)

Asserts that two objects refer to the same object. If they are not the same an AssertionFailedError is thrown.

Parameters
`expected` | `Object`
`actual` | `Object`

### assertTrue

    public static void assertTrue (String message,
                    boolean condition)

Asserts that a condition is true. If it isn't it throws an AssertionFailedError with the given message.

Parameters
`message` | `String`
`condition` | `boolean`

### assertTrue

    public static void assertTrue (boolean condition)

Asserts that a condition is true. If it isn't it throws an AssertionFailedError.

Parameters
`condition` | `boolean`

### fail

    public static void fail (String message)

Fails a test with the given message.

Parameters
`message` | `String`

### fail

    public static void fail ()

Fails a test with no message.

### failNotEquals

    public static void failNotEquals (String message,
                    Object expected,
                    Object actual)

Parameters
`message` | `String`
`expected` | `Object`
`actual` | `Object`

### failNotSame

    public static void failNotSame (String message,
                    Object expected,
                    Object actual)

Parameters
`message` | `String`
`expected` | `Object`
`actual` | `Object`

### failSame

    public static void failSame (String message)

Parameters
`message` | `String`

### format

    public static String format (String message,
                    Object expected,
                    Object actual)

Parameters
`message` | `String`
`expected` | `Object`
`actual` | `Object`

Returns
`String` |

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