public class IsNull<T> extends BaseMatcher<T>
| Constructor and Description |
|---|
IsNull() |
| Modifier and Type | Method and Description |
|---|---|
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 <T> Matcher<T> |
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 <T> Matcher<T> |
nullValue(java.lang.Class<T> type)
Creates a matcher that matches if examined object is
null. |
_dont_implement_Matcher___instead_extend_BaseMatcher_, describeMismatch, toStringpublic boolean matches(java.lang.Object o)
Matchero - the object against which the matcher is evaluated.true if item matches, otherwise false.BaseMatcherpublic void describeTo(Description description)
SelfDescribingdescription - 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