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java.lang.Objectorg.hamcrest.BaseMatcher<T>
org.hamcrest.core.IsNull<T>
public class IsNull<T>
Is the value null?
| Constructor Summary | |
|---|---|
| IsNull() | |
| Method Summary | ||
|---|---|---|
|  void | describeTo(Description description)Generates a description of the object. | |
|  boolean | matches(java.lang.Object o)Evaluates the matcher for argument item. | |
| static Matcher<java.lang.Object> | notNullValue()A shortcut to the frequently used not(nullValue()). | |
| static
 | notNullValue(java.lang.Class<T> type)A shortcut to the frequently used not(nullValue(X.class)). | |
| static Matcher<java.lang.Object> | nullValue()Creates a matcher that matches if examined object is null. | |
| static
 | nullValue(java.lang.Class<T> type)Creates a matcher that matches if examined object is null. | |
| Methods inherited from class org.hamcrest.BaseMatcher | 
|---|
| _dont_implement_Matcher___instead_extend_BaseMatcher_, describeMismatch, toString | 
| Methods inherited from class java.lang.Object | 
|---|
| clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait | 
| Constructor Detail | 
|---|
public IsNull()
| Method Detail | 
|---|
public boolean matches(java.lang.Object o)
Matcher
o - the object against which the matcher is evaluated.
true if item matches, otherwise false.BaseMatcherpublic void describeTo(Description description)
SelfDescribing
description - The description to be built or appended to.public static Matcher<java.lang.Object> nullValue()
null.
 
 For example:
 assertThat(cheese, is(nullValue())
public static Matcher<java.lang.Object> notNullValue()
not(nullValue()).
 
 For example:
 assertThat(cheese, is(notNullValue()))instead of:
assertThat(cheese, is(not(nullValue())))
public static <T> Matcher<T> nullValue(java.lang.Class<T> type)
null. Accepts a
 single dummy argument to facilitate type inference.
 
 For example:
 assertThat(cheese, is(nullValue(Cheese.class))
type - dummy parameter used to infer the generic type of the returned matcherpublic static <T> Matcher<T> notNullValue(java.lang.Class<T> type)
not(nullValue(X.class)). Accepts a
 single dummy argument to facilitate type inference..
 
 For example:
 assertThat(cheese, is(notNullValue(X.class)))instead of:
assertThat(cheese, is(not(nullValue(X.class))))
type - dummy parameter used to infer the generic type of the returned matcher| 
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