Package org.hamcrest

Class Matchers


  • public class Matchers
    extends java.lang.Object
    • Constructor Summary

      Constructors 
      Constructor Description
      Matchers()  
    • Method Summary

      All Methods Static Methods Concrete Methods Deprecated Methods 
      Modifier and Type Method Description
      static <T> Matcher<T> allOf​(java.lang.Iterable<Matcher<? super T>> matchers)
      Creates a matcher that matches if the examined object matches ALL of the specified matchers.
      static <T> Matcher<T> allOf​(Matcher<? super T>... matchers)
      Creates a matcher that matches if the examined object matches ALL of the specified matchers.
      static <T> Matcher<T> allOf​(Matcher<? super T> first, Matcher<? super T> second)
      Creates a matcher that matches if the examined object matches ALL of the specified matchers.
      static <T> Matcher<T> allOf​(Matcher<? super T> first, Matcher<? super T> second, Matcher<? super T> third)
      Creates a matcher that matches if the examined object matches ALL of the specified matchers.
      static <T> Matcher<T> allOf​(Matcher<? super T> first, Matcher<? super T> second, Matcher<? super T> third, Matcher<? super T> fourth)
      Creates a matcher that matches if the examined object matches ALL of the specified matchers.
      static <T> Matcher<T> allOf​(Matcher<? super T> first, Matcher<? super T> second, Matcher<? super T> third, Matcher<? super T> fourth, Matcher<? super T> fifth)
      Creates a matcher that matches if the examined object matches ALL of the specified matchers.
      static <T> Matcher<T> allOf​(Matcher<? super T> first, Matcher<? super T> second, Matcher<? super T> third, Matcher<? super T> fourth, Matcher<? super T> fifth, Matcher<? super T> sixth)
      Creates a matcher that matches if the examined object matches ALL of the specified matchers.
      static <T> Matcher<T> any​(java.lang.Class<T> type)
      Creates a matcher that matches when the examined object is an instance of the specified type, as determined by calling the Class.isInstance(Object) method on that type, passing the the examined object.
      static <T> AnyOf<T> anyOf​(java.lang.Iterable<Matcher<? super T>> matchers)
      Creates a matcher that matches if the examined object matches ANY of the specified matchers.
      static <T> AnyOf<T> anyOf​(Matcher<? super T>... matchers)
      Creates a matcher that matches if the examined object matches ANY of the specified matchers.
      static <T> AnyOf<T> anyOf​(Matcher<T> first, Matcher<? super T> second)
      Creates a matcher that matches if the examined object matches ANY of the specified matchers.
      static <T> AnyOf<T> anyOf​(Matcher<T> first, Matcher<? super T> second, Matcher<? super T> third)
      Creates a matcher that matches if the examined object matches ANY of the specified matchers.
      static <T> AnyOf<T> anyOf​(Matcher<T> first, Matcher<? super T> second, Matcher<? super T> third, Matcher<? super T> fourth)
      Creates a matcher that matches if the examined object matches ANY of the specified matchers.
      static <T> AnyOf<T> anyOf​(Matcher<T> first, Matcher<? super T> second, Matcher<? super T> third, Matcher<? super T> fourth, Matcher<? super T> fifth)
      Creates a matcher that matches if the examined object matches ANY of the specified matchers.
      static <T> AnyOf<T> anyOf​(Matcher<T> first, Matcher<? super T> second, Matcher<? super T> third, Matcher<? super T> fourth, Matcher<? super T> fifth, Matcher<? super T> sixth)
      Creates a matcher that matches if the examined object matches ANY of the specified matchers.
      static Matcher<java.lang.Object> anything()
      Creates a matcher that always matches, regardless of the examined object.
      static Matcher<java.lang.Object> anything​(java.lang.String description)
      Creates a matcher that always matches, regardless of the examined object, but describes itself with the specified String.
      static <T> IsArray<T> array​(Matcher<? super T>... elementMatchers)
      Creates a matcher that matches arrays whose elements are satisfied by the specified matchers.
      static <E> Matcher<E[]> arrayContaining​(E... items)
      Creates a matcher for arrays that matcheswhen each item in the examined array is logically equal to the corresponding item in the specified items.
      static <E> Matcher<E[]> arrayContaining​(java.util.List<Matcher<? super E>> itemMatchers)
      Creates a matcher for arrays that matches when each item in the examined array satisfies the corresponding matcher in the specified list of matchers.
      static <E> Matcher<E[]> arrayContaining​(Matcher<? super E>... itemMatchers)
      Creates a matcher for arrays that matches when each item in the examined array satisfies the corresponding matcher in the specified matchers.
      static <E> Matcher<E[]> arrayContainingInAnyOrder​(E... items)
      Creates an order agnostic matcher for arrays that matches when each item in the examined array is logically equal to one item anywhere in the specified items.
      static <E> Matcher<E[]> arrayContainingInAnyOrder​(java.util.Collection<Matcher<? super E>> itemMatchers)
      Creates an order agnostic matcher for arrays that matches when each item in the examined array satisfies one matcher anywhere in the specified collection of matchers.
      static <E> Matcher<E[]> arrayContainingInAnyOrder​(Matcher<? super E>... itemMatchers)
      Creates an order agnostic matcher for arrays that matches when each item in the examined array satisfies one matcher anywhere in the specified matchers.
      static <E> Matcher<E[]> arrayWithSize​(int size)
      Creates a matcher for arrays that matches when the length of the array equals the specified size.
      static <E> Matcher<E[]> arrayWithSize​(Matcher<? super java.lang.Integer> sizeMatcher)
      Creates a matcher for arrays that matches when the length of the array satisfies the specified matcher.
      static <LHS> CombinableMatcher.CombinableBothMatcher<LHS> both​(Matcher<? super LHS> matcher)
      Creates a matcher that matches when both of the specified matchers match the examined object.
      static Matcher<java.lang.Double> closeTo​(double operand, double error)
      Creates a matcher of Doubles that matches when an examined double is equal to the specified operand, within a range of +/- error.
      static Matcher<java.math.BigDecimal> closeTo​(java.math.BigDecimal operand, java.math.BigDecimal error)
      Creates a matcher of BigDecimals that matches when an examined BigDecimal is equal to the specified operand, within a range of +/- error.
      static <T extends java.lang.Comparable<T>>
      Matcher<T>
      comparesEqualTo​(T value)
      Creates a matcher of Comparable object that matches when the examined object is equal to the specified value, as reported by the compareTo method of the examined object.
      static <E> Matcher<java.lang.Iterable<? extends E>> contains​(E... items)
      Creates a matcher for Iterables that matches when a single pass over the examined Iterable yields a series of items, each logically equal to the corresponding item in the specified items.
      static <E> Matcher<java.lang.Iterable<? extends E>> contains​(java.util.List<Matcher<? super E>> itemMatchers)
      Creates a matcher for Iterables that matches when a single pass over the examined Iterable yields a series of items, each satisfying the corresponding matcher in the specified list of matchers.
      static <E> Matcher<java.lang.Iterable<? extends E>> contains​(Matcher<? super E> itemMatcher)
      Creates a matcher for Iterables that matches when a single pass over the examined Iterable yields a single item that satisfies the specified matcher.
      static <E> Matcher<java.lang.Iterable<? extends E>> contains​(Matcher<? super E>... itemMatchers)
      Creates a matcher for Iterables that matches when a single pass over the examined Iterable yields a series of items, each satisfying the corresponding matcher in the specified matchers.
      static <T> Matcher<java.lang.Iterable<? extends T>> containsInAnyOrder​(java.util.Collection<Matcher<? super T>> itemMatchers)
      Creates an order agnostic matcher for Iterables that matches when a single pass over the examined Iterable yields a series of items, each satisfying one matcher anywhere in the specified collection of matchers.
      static <E> Matcher<java.lang.Iterable<? extends E>> containsInAnyOrder​(Matcher<? super E> itemMatcher)
      Deprecated.
      use contains(Matcher itemMatcher) instead
      static <T> Matcher<java.lang.Iterable<? extends T>> containsInAnyOrder​(Matcher<? super T>... itemMatchers)
      Creates an order agnostic matcher for Iterables that matches when a single pass over the examined Iterable yields a series of items, each satisfying one matcher anywhere in the specified matchers.
      static <T> Matcher<java.lang.Iterable<? extends T>> containsInAnyOrder​(T... items)
      Creates an order agnostic matcher for Iterables that matches when a single pass over the examined Iterable yields a series of items, each logically equal to one item anywhere in the specified items.
      static Matcher<java.lang.String> containsString​(java.lang.String substring)
      Creates a matcher that matches if the examined String contains the specified String anywhere.
      static <T> Matcher<T> describedAs​(java.lang.String description, Matcher<T> matcher, java.lang.Object... values)
      Wraps an existing matcher, overriding its description with that specified.
      static <LHS> CombinableMatcher.CombinableEitherMatcher<LHS> either​(Matcher<? super LHS> matcher)
      Creates a matcher that matches when either of the specified matchers match the examined object.
      static <E> Matcher<java.util.Collection<? extends E>> empty()
      Creates a matcher for Collections matching examined collections whose isEmpty method returns true.
      static <E> Matcher<E[]> emptyArray()
      Creates a matcher for arrays that matches when the length of the array is zero.
      static <E> Matcher<java.util.Collection<E>> emptyCollectionOf​(java.lang.Class<E> type)
      Creates a matcher for Collections matching examined collections whose isEmpty method returns true.
      static <E> Matcher<java.lang.Iterable<? extends E>> emptyIterable()
      Creates a matcher for Iterables matching examined iterables that yield no items.
      static <E> Matcher<java.lang.Iterable<E>> emptyIterableOf​(java.lang.Class<E> type)
      Creates a matcher for Iterables matching examined iterables that yield no items.
      static Matcher<java.lang.String> endsWith​(java.lang.String suffix)
      Creates a matcher that matches if the examined String ends with the specified String.
      static <T> Matcher<T> equalTo​(T operand)
      Creates a matcher that matches when the examined object is logically equal to the specified operand, as determined by calling the Object.equals(java.lang.Object) method on the examined object.
      static Matcher<java.lang.String> equalToIgnoringCase​(java.lang.String expectedString)
      Creates a matcher of String that matches when the examined string is equal to the specified expectedString, ignoring case.
      static Matcher<java.lang.String> equalToIgnoringWhiteSpace​(java.lang.String expectedString)
      Creates a matcher of String that matches when the examined string is equal to the specified expectedString, when whitespace differences are (mostly) ignored.
      static Matcher<java.util.EventObject> eventFrom​(java.lang.Class<? extends java.util.EventObject> eventClass, java.lang.Object source)
      Creates a matcher of EventObject that matches any object derived from eventClass announced by source.
      static Matcher<java.util.EventObject> eventFrom​(java.lang.Object source)
      Creates a matcher of EventObject that matches any EventObject announced by source.
      static <U> Matcher<java.lang.Iterable<U>> everyItem​(Matcher<U> itemMatcher)
      Creates a matcher for Iterables that only matches when a single pass over the examined Iterable yields items that are all matched by the specified itemMatcher.
      static <T extends java.lang.Comparable<T>>
      Matcher<T>
      greaterThan​(T value)
      Creates a matcher of Comparable object that matches when the examined object is greater than the specified value, as reported by the compareTo method of the examined object.
      static <T extends java.lang.Comparable<T>>
      Matcher<T>
      greaterThanOrEqualTo​(T value)
      Creates a matcher of Comparable object that matches when the examined object is greater than or equal to the specified value, as reported by the compareTo method of the examined object.
      static <K,​V>
      Matcher<java.util.Map<? extends K,​? extends V>>
      hasEntry​(K key, V value)
      Creates a matcher for Maps matching when the examined Map contains at least one entry whose key equals the specified key and whose value equals the specified value.
      static <K,​V>
      Matcher<java.util.Map<? extends K,​? extends V>>
      hasEntry​(Matcher<? super K> keyMatcher, Matcher<? super V> valueMatcher)
      Creates a matcher for Maps matching when the examined Map contains at least one entry whose key satisfies the specified keyMatcher and whose value satisfies the specified valueMatcher.
      static <T> Matcher<java.lang.Iterable<? super T>> hasItem​(Matcher<? super T> itemMatcher)
      Creates a matcher for Iterables that only matches when a single pass over the examined Iterable yields at least one item that is matched by the specified itemMatcher.
      static <T> Matcher<java.lang.Iterable<? super T>> hasItem​(T item)
      Creates a matcher for Iterables that only matches when a single pass over the examined Iterable yields at least one item that is equal to the specified item.
      static <T> Matcher<T[]> hasItemInArray​(Matcher<? super T> elementMatcher)
      Creates a matcher for arrays that matches when the examined array contains at least one item that is matched by the specified elementMatcher.
      static <T> Matcher<T[]> hasItemInArray​(T element)
      A shortcut to the frequently used hasItemInArray(equalTo(x)).
      static <T> Matcher<java.lang.Iterable<T>> hasItems​(Matcher<? super T>... itemMatchers)
      Creates a matcher for Iterables that matches when consecutive passes over the examined Iterable yield at least one item that is matched by the corresponding matcher from the specified itemMatchers.
      static <T> Matcher<java.lang.Iterable<T>> hasItems​(T... items)
      Creates a matcher for Iterables that matches when consecutive passes over the examined Iterable yield at least one item that is equal to the corresponding item from the specified items.
      static <K> Matcher<java.util.Map<? extends K,​?>> hasKey​(K key)
      Creates a matcher for Maps matching when the examined Map contains at least one key that is equal to the specified key.
      static <K> Matcher<java.util.Map<? extends K,​?>> hasKey​(Matcher<? super K> keyMatcher)
      Creates a matcher for Maps matching when the examined Map contains at least one key that satisfies the specified matcher.
      static <T> Matcher<T> hasProperty​(java.lang.String propertyName)
      Creates a matcher that matches when the examined object has a JavaBean property with the specified name.
      static <T> Matcher<T> hasProperty​(java.lang.String propertyName, Matcher<?> valueMatcher)
      Creates a matcher that matches when the examined object has a JavaBean property with the specified name whose value satisfies the specified matcher.
      static <E> Matcher<java.util.Collection<? extends E>> hasSize​(int size)
      Creates a matcher for Collections that matches when the size() method returns a value equal to the specified size.
      static <E> Matcher<java.util.Collection<? extends E>> hasSize​(Matcher<? super java.lang.Integer> sizeMatcher)
      Creates a matcher for Collections that matches when the size() method returns a value that satisfies the specified matcher.
      static <T> Matcher<T> hasToString​(java.lang.String expectedToString)
      Creates a matcher that matches any examined object whose toString method returns a value equalTo the specified string.
      static <T> Matcher<T> hasToString​(Matcher<? super java.lang.String> toStringMatcher)
      Creates a matcher that matches any examined object whose toString method returns a value that satisfies the specified matcher.
      static <V> Matcher<java.util.Map<?,​? extends V>> hasValue​(Matcher<? super V> valueMatcher)
      Creates a matcher for Maps matching when the examined Map contains at least one value that satisfies the specified valueMatcher.
      static <V> Matcher<java.util.Map<?,​? extends V>> hasValue​(V value)
      Creates a matcher for Maps matching when the examined Map contains at least one value that is equal to the specified value.
      static Matcher<org.w3c.dom.Node> hasXPath​(java.lang.String xPath)
      Creates a matcher of Nodes that matches when the examined node contains a node at the specified xPath, with any content.
      static Matcher<org.w3c.dom.Node> hasXPath​(java.lang.String xPath, javax.xml.namespace.NamespaceContext namespaceContext)
      Creates a matcher of Nodes that matches when the examined node contains a node at the specified xPath within the specified namespace context, with any content.
      static Matcher<org.w3c.dom.Node> hasXPath​(java.lang.String xPath, javax.xml.namespace.NamespaceContext namespaceContext, Matcher<java.lang.String> valueMatcher)
      Creates a matcher of Nodes that matches when the examined node has a value at the specified xPath, within the specified namespaceContext, that satisfies the specified valueMatcher.
      static Matcher<org.w3c.dom.Node> hasXPath​(java.lang.String xPath, Matcher<java.lang.String> valueMatcher)
      Creates a matcher of Nodes that matches when the examined node has a value at the specified xPath that satisfies the specified valueMatcher.
      static <T> Matcher<T> instanceOf​(java.lang.Class<?> type)
      Creates a matcher that matches when the examined object is an instance of the specified type, as determined by calling the Class.isInstance(Object) method on that type, passing the the examined object.
      static <T> Matcher<T> is​(java.lang.Class<T> type)
      Deprecated.
      use isA(Class type) instead.
      static <T> Matcher<T> is​(Matcher<T> matcher)
      Decorates another Matcher, retaining its behaviour, but allowing tests to be slightly more expressive.
      static <T> Matcher<T> is​(T value)
      A shortcut to the frequently used is(equalTo(x)).
      static <T> Matcher<T> isA​(java.lang.Class<T> type)
      A shortcut to the frequently used is(instanceOf(SomeClass.class)).
      static Matcher<java.lang.String> isEmptyOrNullString()
      Creates a matcher of String that matches when the examined string is null, or has zero length.
      static Matcher<java.lang.String> isEmptyString()
      Creates a matcher of String that matches when the examined string has zero length.
      static <T> Matcher<T> isIn​(java.util.Collection<T> collection)
      Creates a matcher that matches when the examined object is found within the specified collection.
      static <T> Matcher<T> isIn​(T[] elements)
      Creates a matcher that matches when the examined object is found within the specified array.
      static <T> Matcher<T> isOneOf​(T... elements)
      Creates a matcher that matches when the examined object is equal to one of the specified elements.
      static <E> Matcher<java.lang.Iterable<E>> iterableWithSize​(int size)
      Creates a matcher for Iterables that matches when a single pass over the examined Iterable yields an item count that is equal to the specified size argument.
      static <E> Matcher<java.lang.Iterable<E>> iterableWithSize​(Matcher<? super java.lang.Integer> sizeMatcher)
      Creates a matcher for Iterables that matches when a single pass over the examined Iterable yields an item count that satisfies the specified matcher.
      static <T extends java.lang.Comparable<T>>
      Matcher<T>
      lessThan​(T value)
      Creates a matcher of Comparable object that matches when the examined object is less than the specified value, as reported by the compareTo method of the examined object.
      static <T extends java.lang.Comparable<T>>
      Matcher<T>
      lessThanOrEqualTo​(T value)
      Creates a matcher of Comparable object that matches when the examined object is less than or equal to the specified value, as reported by the compareTo method of the examined object.
      static <T> Matcher<T> not​(Matcher<T> matcher)
      Creates a matcher that wraps an existing matcher, but inverts the logic by which it will match.
      static <T> Matcher<T> not​(T value)
      A shortcut to the frequently used not(equalTo(x)).
      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.
      static <T> Matcher<T> sameInstance​(T target)
      Creates a matcher that matches only when the examined object is the same instance as the specified target object.
      static <T> Matcher<T> samePropertyValuesAs​(T expectedBean)
      Creates a matcher that matches when the examined object has values for all of its JavaBean properties that are equal to the corresponding values of the specified bean.
      static Matcher<java.lang.String> startsWith​(java.lang.String prefix)
      Creates a matcher that matches if the examined String starts with the specified String.
      static Matcher<java.lang.String> stringContainsInOrder​(java.lang.Iterable<java.lang.String> substrings)
      Creates a matcher of String that matches when the examined string contains all of the specified substrings, regardless of the order of their appearance.
      static <T> Matcher<T> theInstance​(T target)
      Creates a matcher that matches only when the examined object is the same instance as the specified target object.
      static <T> Matcher<java.lang.Class<?>> typeCompatibleWith​(java.lang.Class<T> baseType)
      Creates a matcher of Class that matches when the specified baseType is assignable from the examined class.
      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
    • Constructor Detail

      • Matchers

        public Matchers()
    • Method Detail

      • allOf

        public static <T> Matcher<T> allOf​(Matcher<? super T>... matchers)
        Creates a matcher that matches if the examined object matches ALL of the specified matchers.

        For example:

        assertThat("myValue", allOf(startsWith("my"), containsString("Val")))
      • allOf

        public static <T> Matcher<T> allOf​(Matcher<? super T> first,
                                           Matcher<? super T> second,
                                           Matcher<? super T> third,
                                           Matcher<? super T> fourth,
                                           Matcher<? super T> fifth,
                                           Matcher<? super T> sixth)
        Creates a matcher that matches if the examined object matches ALL of the specified matchers.

        For example:

        assertThat("myValue", allOf(startsWith("my"), containsString("Val")))
      • allOf

        public static <T> Matcher<T> allOf​(Matcher<? super T> first,
                                           Matcher<? super T> second,
                                           Matcher<? super T> third)
        Creates a matcher that matches if the examined object matches ALL of the specified matchers.

        For example:

        assertThat("myValue", allOf(startsWith("my"), containsString("Val")))
      • allOf

        public static <T> Matcher<T> allOf​(Matcher<? super T> first,
                                           Matcher<? super T> second,
                                           Matcher<? super T> third,
                                           Matcher<? super T> fourth)
        Creates a matcher that matches if the examined object matches ALL of the specified matchers.

        For example:

        assertThat("myValue", allOf(startsWith("my"), containsString("Val")))
      • allOf

        public static <T> Matcher<T> allOf​(Matcher<? super T> first,
                                           Matcher<? super T> second,
                                           Matcher<? super T> third,
                                           Matcher<? super T> fourth,
                                           Matcher<? super T> fifth)
        Creates a matcher that matches if the examined object matches ALL of the specified matchers.

        For example:

        assertThat("myValue", allOf(startsWith("my"), containsString("Val")))
      • allOf

        public static <T> Matcher<T> allOf​(java.lang.Iterable<Matcher<? super T>> matchers)
        Creates a matcher that matches if the examined object matches ALL of the specified matchers.

        For example:

        assertThat("myValue", allOf(startsWith("my"), containsString("Val")))
      • allOf

        public static <T> Matcher<T> allOf​(Matcher<? super T> first,
                                           Matcher<? super T> second)
        Creates a matcher that matches if the examined object matches ALL of the specified matchers.

        For example:

        assertThat("myValue", allOf(startsWith("my"), containsString("Val")))
      • anyOf

        public static <T> AnyOf<T> anyOf​(Matcher<T> first,
                                         Matcher<? super T> second,
                                         Matcher<? super T> third,
                                         Matcher<? super T> fourth)
        Creates a matcher that matches if the examined object matches ANY of the specified matchers.

        For example:

        assertThat("myValue", anyOf(startsWith("foo"), containsString("Val")))
      • anyOf

        public static <T> AnyOf<T> anyOf​(Matcher<T> first,
                                         Matcher<? super T> second,
                                         Matcher<? super T> third,
                                         Matcher<? super T> fourth,
                                         Matcher<? super T> fifth)
        Creates a matcher that matches if the examined object matches ANY of the specified matchers.

        For example:

        assertThat("myValue", anyOf(startsWith("foo"), containsString("Val")))
      • anyOf

        public static <T> AnyOf<T> anyOf​(Matcher<T> first,
                                         Matcher<? super T> second)
        Creates a matcher that matches if the examined object matches ANY of the specified matchers.

        For example:

        assertThat("myValue", anyOf(startsWith("foo"), containsString("Val")))
      • anyOf

        public static <T> AnyOf<T> anyOf​(Matcher<T> first,
                                         Matcher<? super T> second,
                                         Matcher<? super T> third,
                                         Matcher<? super T> fourth,
                                         Matcher<? super T> fifth,
                                         Matcher<? super T> sixth)
        Creates a matcher that matches if the examined object matches ANY of the specified matchers.

        For example:

        assertThat("myValue", anyOf(startsWith("foo"), containsString("Val")))
      • anyOf

        public static <T> AnyOf<T> anyOf​(Matcher<T> first,
                                         Matcher<? super T> second,
                                         Matcher<? super T> third)
        Creates a matcher that matches if the examined object matches ANY of the specified matchers.

        For example:

        assertThat("myValue", anyOf(startsWith("foo"), containsString("Val")))
      • anyOf

        public static <T> AnyOf<T> anyOf​(Matcher<? super T>... matchers)
        Creates a matcher that matches if the examined object matches ANY of the specified matchers.

        For example:

        assertThat("myValue", anyOf(startsWith("foo"), containsString("Val")))
      • anyOf

        public static <T> AnyOf<T> anyOf​(java.lang.Iterable<Matcher<? super T>> matchers)
        Creates a matcher that matches if the examined object matches ANY of the specified matchers.

        For example:

        assertThat("myValue", anyOf(startsWith("foo"), containsString("Val")))
      • both

        public static <LHS> CombinableMatcher.CombinableBothMatcher<LHS> both​(Matcher<? super LHS> matcher)
        Creates a matcher that matches when both of the specified matchers match the examined object.

        For example:

        assertThat("fab", both(containsString("a")).and(containsString("b")))
      • either

        public static <LHS> CombinableMatcher.CombinableEitherMatcher<LHS> either​(Matcher<? super LHS> matcher)
        Creates a matcher that matches when either of the specified matchers match the examined object.

        For example:

        assertThat("fan", either(containsString("a")).and(containsString("b")))
      • describedAs

        public static <T> Matcher<T> describedAs​(java.lang.String description,
                                                 Matcher<T> matcher,
                                                 java.lang.Object... values)
        Wraps an existing matcher, overriding its description with that specified. All other functions are delegated to the decorated matcher, including its mismatch description.

        For example:

        describedAs("a big decimal equal to %0", equalTo(myBigDecimal), myBigDecimal.toPlainString())
        Parameters:
        description - the new description for the wrapped matcher
        matcher - the matcher to wrap
        values - optional values to insert into the tokenised description
      • everyItem

        public static <U> Matcher<java.lang.Iterable<U>> everyItem​(Matcher<U> itemMatcher)
        Creates a matcher for Iterables that only matches when a single pass over the examined Iterable yields items that are all matched by the specified itemMatcher.

        For example:

        assertThat(Arrays.asList("bar", "baz"), everyItem(startsWith("ba")))
        Parameters:
        itemMatcher - the matcher to apply to every item provided by the examined Iterable
      • is

        public static <T> Matcher<T> is​(T value)
        A shortcut to the frequently used is(equalTo(x)).

        For example:

        assertThat(cheese, is(smelly))
        instead of:
        assertThat(cheese, is(equalTo(smelly)))
      • is

        public static <T> Matcher<T> is​(Matcher<T> matcher)
        Decorates another Matcher, retaining its behaviour, but allowing tests to be slightly more expressive.

        For example:

        assertThat(cheese, is(equalTo(smelly)))
        instead of:
        assertThat(cheese, equalTo(smelly))
      • is

        public static <T> Matcher<T> is​(java.lang.Class<T> type)
        Deprecated.
        use isA(Class type) instead.
        A shortcut to the frequently used is(instanceOf(SomeClass.class)).

        For example:

        assertThat(cheese, is(Cheddar.class))
        instead of:
        assertThat(cheese, is(instanceOf(Cheddar.class)))
      • isA

        public static <T> Matcher<T> isA​(java.lang.Class<T> type)
        A shortcut to the frequently used is(instanceOf(SomeClass.class)).

        For example:

        assertThat(cheese, isA(Cheddar.class))
        instead of:
        assertThat(cheese, is(instanceOf(Cheddar.class)))
      • anything

        public static Matcher<java.lang.Object> anything()
        Creates a matcher that always matches, regardless of the examined object.
      • anything

        public static Matcher<java.lang.Object> anything​(java.lang.String description)
        Creates a matcher that always matches, regardless of the examined object, but describes itself with the specified String.
        Parameters:
        description - a meaningful String used when describing itself
      • hasItem

        public static <T> Matcher<java.lang.Iterable<? super T>> hasItem​(T item)
        Creates a matcher for Iterables that only matches when a single pass over the examined Iterable yields at least one item that is equal to the specified item. Whilst matching, the traversal of the examined Iterable will stop as soon as a matching item is found.

        For example:

        assertThat(Arrays.asList("foo", "bar"), hasItem("bar"))
        Parameters:
        item - the item to compare against the items provided by the examined Iterable
      • hasItem

        public static <T> Matcher<java.lang.Iterable<? super T>> hasItem​(Matcher<? super T> itemMatcher)
        Creates a matcher for Iterables that only matches when a single pass over the examined Iterable yields at least one item that is matched by the specified itemMatcher. Whilst matching, the traversal of the examined Iterable will stop as soon as a matching item is found.

        For example:

        assertThat(Arrays.asList("foo", "bar"), hasItem(startsWith("ba")))
        Parameters:
        itemMatcher - the matcher to apply to items provided by the examined Iterable
      • hasItems

        public static <T> Matcher<java.lang.Iterable<T>> hasItems​(T... items)
        Creates a matcher for Iterables that matches when consecutive passes over the examined Iterable yield at least one item that is equal to the corresponding item from the specified items. Whilst matching, each traversal of the examined Iterable will stop as soon as a matching item is found.

        For example:

        assertThat(Arrays.asList("foo", "bar", "baz"), hasItems("baz", "foo"))
        Parameters:
        items - the items to compare against the items provided by the examined Iterable
      • hasItems

        public static <T> Matcher<java.lang.Iterable<T>> hasItems​(Matcher<? super T>... itemMatchers)
        Creates a matcher for Iterables that matches when consecutive passes over the examined Iterable yield at least one item that is matched by the corresponding matcher from the specified itemMatchers. Whilst matching, each traversal of the examined Iterable will stop as soon as a matching item is found.

        For example:

        assertThat(Arrays.asList("foo", "bar", "baz"), hasItems(endsWith("z"), endsWith("o")))
        Parameters:
        itemMatchers - the matchers to apply to items provided by the examined Iterable
      • equalTo

        public static <T> Matcher<T> equalTo​(T operand)
        Creates a matcher that matches when the examined object is logically equal to the specified operand, as determined by calling the Object.equals(java.lang.Object) method on the examined object.

        If the specified operand is null then the created matcher will only match if the examined object's equals method returns true when passed a null (which would be a violation of the equals contract), unless the examined object itself is null, in which case the matcher will return a positive match.

        The created matcher provides a special behaviour when examining Arrays, whereby it will match if both the operand and the examined object are arrays of the same length and contain items that are equal to each other (according to the above rules) in the same indexes.

        For example:

         assertThat("foo", equalTo("foo"));
         assertThat(new String[] {"foo", "bar"}, equalTo(new String[] {"foo", "bar"}));
         
      • any

        public static <T> Matcher<T> any​(java.lang.Class<T> type)
        Creates a matcher that matches when the examined object is an instance of the specified type, as determined by calling the Class.isInstance(Object) method on that type, passing the the examined object.

        The created matcher forces a relationship between specified type and the examined object, and should be used when it is necessary to make generics conform, for example in the JMock clause with(any(Thing.class))

        For example:

        assertThat(new Canoe(), instanceOf(Canoe.class));
      • instanceOf

        public static <T> Matcher<T> instanceOf​(java.lang.Class<?> type)
        Creates a matcher that matches when the examined object is an instance of the specified type, as determined by calling the Class.isInstance(Object) method on that type, passing the the examined object.

        The created matcher assumes no relationship between specified type and the examined object.

        For example:

        assertThat(new Canoe(), instanceOf(Paddlable.class));
      • not

        public static <T> Matcher<T> not​(T value)
        A shortcut to the frequently used not(equalTo(x)).

        For example:

        assertThat(cheese, is(not(smelly)))
        instead of:
        assertThat(cheese, is(not(equalTo(smelly))))
        Parameters:
        value - the value that any examined object should not equal
      • not

        public static <T> Matcher<T> not​(Matcher<T> matcher)
        Creates a matcher that wraps an existing matcher, but inverts the logic by which it will match.

        For example:

        assertThat(cheese, is(not(equalTo(smelly))))
        Parameters:
        matcher - the matcher whose sense should be inverted
      • nullValue

        public static <T> Matcher<T> nullValue​(java.lang.Class<T> type)
        Creates a matcher that matches if examined object is null. Accepts a single dummy argument to facilitate type inference.

        For example:

        assertThat(cheese, is(nullValue(Cheese.class))
        Parameters:
        type - dummy parameter used to infer the generic type of the returned matcher
      • nullValue

        public static Matcher<java.lang.Object> nullValue()
        Creates a matcher that matches if examined object is null.

        For example:

        assertThat(cheese, is(nullValue())
      • notNullValue

        public static Matcher<java.lang.Object> notNullValue()
        A shortcut to the frequently used not(nullValue()).

        For example:

        assertThat(cheese, is(notNullValue()))
        instead of:
        assertThat(cheese, is(not(nullValue())))
      • notNullValue

        public static <T> Matcher<T> notNullValue​(java.lang.Class<T> type)
        A shortcut to the frequently used 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))))
        Parameters:
        type - dummy parameter used to infer the generic type of the returned matcher
      • sameInstance

        public static <T> Matcher<T> sameInstance​(T target)
        Creates a matcher that matches only when the examined object is the same instance as the specified target object.
        Parameters:
        target - the target instance against which others should be assessed
      • theInstance

        public static <T> Matcher<T> theInstance​(T target)
        Creates a matcher that matches only when the examined object is the same instance as the specified target object.
        Parameters:
        target - the target instance against which others should be assessed
      • containsString

        public static Matcher<java.lang.String> containsString​(java.lang.String substring)
        Creates a matcher that matches if the examined String contains the specified String anywhere.

        For example:

        assertThat("myStringOfNote", containsString("ring"))
        Parameters:
        substring - the substring that the returned matcher will expect to find within any examined string
      • startsWith

        public static Matcher<java.lang.String> startsWith​(java.lang.String prefix)
        Creates a matcher that matches if the examined String starts with the specified String.

        For example:

        assertThat("myStringOfNote", startsWith("my"))
        Parameters:
        prefix - the substring that the returned matcher will expect at the start of any examined string
      • endsWith

        public static Matcher<java.lang.String> endsWith​(java.lang.String suffix)
        Creates a matcher that matches if the examined String ends with the specified String.

        For example:

        assertThat("myStringOfNote", endsWith("Note"))
        Parameters:
        suffix - the substring that the returned matcher will expect at the end of any examined string
      • array

        public static <T> IsArray<T> array​(Matcher<? super T>... elementMatchers)
        Creates a matcher that matches arrays whose elements are satisfied by the specified matchers. Matches positively only if the number of matchers specified is equal to the length of the examined array and each matcher[i] is satisfied by array[i].

        For example:

        assertThat(new Integer[]{1,2,3}, is(array(equalTo(1), equalTo(2), equalTo(3))))
        Parameters:
        elementMatchers - the matchers that the elements of examined arrays should satisfy
      • hasItemInArray

        public static <T> Matcher<T[]> hasItemInArray​(T element)
        A shortcut to the frequently used hasItemInArray(equalTo(x)).

        For example:

        assertThat(hasItemInArray(x))
        instead of:
        assertThat(hasItemInArray(equalTo(x)))
        Parameters:
        element - the element that should be present in examined arrays
      • hasItemInArray

        public static <T> Matcher<T[]> hasItemInArray​(Matcher<? super T> elementMatcher)
        Creates a matcher for arrays that matches when the examined array contains at least one item that is matched by the specified elementMatcher. Whilst matching, the traversal of the examined array will stop as soon as a matching element is found.

        For example:

        assertThat(new String[] {"foo", "bar"}, hasItemInArray(startsWith("ba")))
        Parameters:
        elementMatcher - the matcher to apply to elements in examined arrays
      • arrayContaining

        public static <E> Matcher<E[]> arrayContaining​(E... items)
        Creates a matcher for arrays that matcheswhen each item in the examined array is logically equal to the corresponding item in the specified items. For a positive match, the examined array must be of the same length as the number of specified items.

        For example:

        assertThat(new String[]{"foo", "bar"}, contains("foo", "bar"))
        Parameters:
        items - the items that must equal the items within an examined array
      • arrayContaining

        public static <E> Matcher<E[]> arrayContaining​(Matcher<? super E>... itemMatchers)
        Creates a matcher for arrays that matches when each item in the examined array satisfies the corresponding matcher in the specified matchers. For a positive match, the examined array must be of the same length as the number of specified matchers.

        For example:

        assertThat(new String[]{"foo", "bar"}, contains(equalTo("foo"), equalTo("bar")))
        Parameters:
        itemMatchers - the matchers that must be satisfied by the items in the examined array
      • arrayContaining

        public static <E> Matcher<E[]> arrayContaining​(java.util.List<Matcher<? super E>> itemMatchers)
        Creates a matcher for arrays that matches when each item in the examined array satisfies the corresponding matcher in the specified list of matchers. For a positive match, the examined array must be of the same length as the specified list of matchers.

        For example:

        assertThat(new String[]{"foo", "bar"}, contains(Arrays.asList(equalTo("foo"), equalTo("bar"))))
        Parameters:
        itemMatchers - a list of matchers, each of which must be satisfied by the corresponding item in an examined array
      • arrayContainingInAnyOrder

        public static <E> Matcher<E[]> arrayContainingInAnyOrder​(Matcher<? super E>... itemMatchers)
        Creates an order agnostic matcher for arrays that matches when each item in the examined array satisfies one matcher anywhere in the specified matchers. For a positive match, the examined array must be of the same length as the number of specified matchers.

        N.B. each of the specified matchers will only be used once during a given examination, so be careful when specifying matchers that may be satisfied by more than one entry in an examined array.

        For example:

        assertThat(new String[]{"foo", "bar"}, arrayContainingInAnyOrder(equalTo("bar"), equalTo("foo")))
        Parameters:
        itemMatchers - a list of matchers, each of which must be satisfied by an entry in an examined array
      • arrayContainingInAnyOrder

        public static <E> Matcher<E[]> arrayContainingInAnyOrder​(java.util.Collection<Matcher<? super E>> itemMatchers)
        Creates an order agnostic matcher for arrays that matches when each item in the examined array satisfies one matcher anywhere in the specified collection of matchers. For a positive match, the examined array must be of the same length as the specified collection of matchers.

        N.B. each matcher in the specified collection will only be used once during a given examination, so be careful when specifying matchers that may be satisfied by more than one entry in an examined array.

        For example:

        assertThat(new String[]{"foo", "bar"}, arrayContainingInAnyOrder(Arrays.asList(equalTo("bar"), equalTo("foo"))))
        Parameters:
        itemMatchers - a list of matchers, each of which must be satisfied by an item provided by an examined array
      • arrayContainingInAnyOrder

        public static <E> Matcher<E[]> arrayContainingInAnyOrder​(E... items)
        Creates an order agnostic matcher for arrays that matches when each item in the examined array is logically equal to one item anywhere in the specified items. For a positive match, the examined array must be of the same length as the number of specified items.

        N.B. each of the specified items will only be used once during a given examination, so be careful when specifying items that may be equal to more than one entry in an examined array.

        For example:

        assertThat(new String[]{"foo", "bar"}, containsInAnyOrder("bar", "foo"))
        Parameters:
        items - the items that must equal the entries of an examined array, in any order
      • emptyArray

        public static <E> Matcher<E[]> emptyArray()
        Creates a matcher for arrays that matches when the length of the array is zero.

        For example:

        assertThat(new String[0], emptyArray())
      • arrayWithSize

        public static <E> Matcher<E[]> arrayWithSize​(Matcher<? super java.lang.Integer> sizeMatcher)
        Creates a matcher for arrays that matches when the length of the array satisfies the specified matcher.

        For example:

        assertThat(new String[]{"foo", "bar"}, arrayWithSize(equalTo(2)))
        Parameters:
        sizeMatcher - a matcher for the length of an examined array
      • arrayWithSize

        public static <E> Matcher<E[]> arrayWithSize​(int size)
        Creates a matcher for arrays that matches when the length of the array equals the specified size.

        For example:

        assertThat(new String[]{"foo", "bar"}, arrayWithSize(2))
        Parameters:
        size - the length that an examined array must have for a positive match
      • hasSize

        public static <E> Matcher<java.util.Collection<? extends E>> hasSize​(int size)
        Creates a matcher for Collections that matches when the size() method returns a value equal to the specified size.

        For example:

        assertThat(Arrays.asList("foo", "bar"), hasSize(2))
        Parameters:
        size - the expected size of an examined Collection
      • hasSize

        public static <E> Matcher<java.util.Collection<? extends E>> hasSize​(Matcher<? super java.lang.Integer> sizeMatcher)
        Creates a matcher for Collections that matches when the size() method returns a value that satisfies the specified matcher.

        For example:

        assertThat(Arrays.asList("foo", "bar"), hasSize(equalTo(2)))
        Parameters:
        sizeMatcher - a matcher for the size of an examined Collection
      • empty

        public static <E> Matcher<java.util.Collection<? extends E>> empty()
        Creates a matcher for Collections matching examined collections whose isEmpty method returns true.

        For example:

        assertThat(new ArrayList<String>(), is(empty()))
      • emptyCollectionOf

        public static <E> Matcher<java.util.Collection<E>> emptyCollectionOf​(java.lang.Class<E> type)
        Creates a matcher for Collections matching examined collections whose isEmpty method returns true.

        For example:

        assertThat(new ArrayList<String>(), is(emptyCollectionOf(String.class)))
        Parameters:
        type - the type of the collection's content
      • emptyIterable

        public static <E> Matcher<java.lang.Iterable<? extends E>> emptyIterable()
        Creates a matcher for Iterables matching examined iterables that yield no items.

        For example:

        assertThat(new ArrayList<String>(), is(emptyIterable()))
      • emptyIterableOf

        public static <E> Matcher<java.lang.Iterable<E>> emptyIterableOf​(java.lang.Class<E> type)
        Creates a matcher for Iterables matching examined iterables that yield no items.

        For example:

        assertThat(new ArrayList<String>(), is(emptyIterableOf(String.class)))
        Parameters:
        type - the type of the iterable's content
      • contains

        public static <E> Matcher<java.lang.Iterable<? extends E>> contains​(Matcher<? super E> itemMatcher)
        Creates a matcher for Iterables that matches when a single pass over the examined Iterable yields a single item that satisfies the specified matcher. For a positive match, the examined iterable must only yield one item.

        For example:

        assertThat(Arrays.asList("foo"), contains(equalTo("foo")))
        Parameters:
        itemMatcher - the matcher that must be satisfied by the single item provided by an examined Iterable
      • contains

        public static <E> Matcher<java.lang.Iterable<? extends E>> contains​(Matcher<? super E>... itemMatchers)
        Creates a matcher for Iterables that matches when a single pass over the examined Iterable yields a series of items, each satisfying the corresponding matcher in the specified matchers. For a positive match, the examined iterable must be of the same length as the number of specified matchers.

        For example:

        assertThat(Arrays.asList("foo", "bar"), contains(equalTo("foo"), equalTo("bar")))
        Parameters:
        itemMatchers - the matchers that must be satisfied by the items provided by an examined Iterable
      • contains

        public static <E> Matcher<java.lang.Iterable<? extends E>> contains​(java.util.List<Matcher<? super E>> itemMatchers)
        Creates a matcher for Iterables that matches when a single pass over the examined Iterable yields a series of items, each satisfying the corresponding matcher in the specified list of matchers. For a positive match, the examined iterable must be of the same length as the specified list of matchers.

        For example:

        assertThat(Arrays.asList("foo", "bar"), contains(Arrays.asList(equalTo("foo"), equalTo("bar"))))
        Parameters:
        itemMatchers - a list of matchers, each of which must be satisfied by the corresponding item provided by an examined Iterable
      • contains

        public static <E> Matcher<java.lang.Iterable<? extends E>> contains​(E... items)
        Creates a matcher for Iterables that matches when a single pass over the examined Iterable yields a series of items, each logically equal to the corresponding item in the specified items. For a positive match, the examined iterable must be of the same length as the number of specified items.

        For example:

        assertThat(Arrays.asList("foo", "bar"), contains("foo", "bar"))
        Parameters:
        items - the items that must equal the items provided by an examined Iterable
      • containsInAnyOrder

        public static <T> Matcher<java.lang.Iterable<? extends T>> containsInAnyOrder​(Matcher<? super T>... itemMatchers)
        Creates an order agnostic matcher for Iterables that matches when a single pass over the examined Iterable yields a series of items, each satisfying one matcher anywhere in the specified matchers. For a positive match, the examined iterable must be of the same length as the number of specified matchers.

        N.B. each of the specified matchers will only be used once during a given examination, so be careful when specifying matchers that may be satisfied by more than one entry in an examined iterable.

        For example:

        assertThat(Arrays.asList("foo", "bar"), containsInAnyOrder(equalTo("bar"), equalTo("foo")))
        Parameters:
        itemMatchers - a list of matchers, each of which must be satisfied by an item provided by an examined Iterable
      • containsInAnyOrder

        public static <T> Matcher<java.lang.Iterable<? extends T>> containsInAnyOrder​(java.util.Collection<Matcher<? super T>> itemMatchers)
        Creates an order agnostic matcher for Iterables that matches when a single pass over the examined Iterable yields a series of items, each satisfying one matcher anywhere in the specified collection of matchers. For a positive match, the examined iterable must be of the same length as the specified collection of matchers.

        N.B. each matcher in the specified collection will only be used once during a given examination, so be careful when specifying matchers that may be satisfied by more than one entry in an examined iterable.

        For example:

        assertThat(Arrays.asList("foo", "bar"), containsInAnyOrder(Arrays.asList(equalTo("bar"), equalTo("foo"))))
        Parameters:
        itemMatchers - a list of matchers, each of which must be satisfied by an item provided by an examined Iterable
      • containsInAnyOrder

        public static <T> Matcher<java.lang.Iterable<? extends T>> containsInAnyOrder​(T... items)
        Creates an order agnostic matcher for Iterables that matches when a single pass over the examined Iterable yields a series of items, each logically equal to one item anywhere in the specified items. For a positive match, the examined iterable must be of the same length as the number of specified items.

        N.B. each of the specified items will only be used once during a given examination, so be careful when specifying items that may be equal to more than one entry in an examined iterable.

        For example:

        assertThat(Arrays.asList("foo", "bar"), containsInAnyOrder("bar", "foo"))
        Parameters:
        items - the items that must equal the items provided by an examined Iterable in any order
      • containsInAnyOrder

        public static <E> Matcher<java.lang.Iterable<? extends E>> containsInAnyOrder​(Matcher<? super E> itemMatcher)
        Deprecated.
        use contains(Matcher itemMatcher) instead
        Creates a matcher for Iterables that matches when a single pass over the examined Iterable yields a single item that satisfies the specified matcher. For a positive match, the examined iterable must only yield one item.

        For example:

        assertThat(Arrays.asList("foo"), containsInAnyOrder(equalTo("foo")))
        Parameters:
        itemMatcher - the matcher that must be satisfied by the single item provided by an examined Iterable
      • iterableWithSize

        public static <E> Matcher<java.lang.Iterable<E>> iterableWithSize​(int size)
        Creates a matcher for Iterables that matches when a single pass over the examined Iterable yields an item count that is equal to the specified size argument.

        For example:

        assertThat(Arrays.asList("foo", "bar"), iterableWithSize(2))
        Parameters:
        size - the number of items that should be yielded by an examined Iterable
      • iterableWithSize

        public static <E> Matcher<java.lang.Iterable<E>> iterableWithSize​(Matcher<? super java.lang.Integer> sizeMatcher)
        Creates a matcher for Iterables that matches when a single pass over the examined Iterable yields an item count that satisfies the specified matcher.

        For example:

        assertThat(Arrays.asList("foo", "bar"), iterableWithSize(equalTo(2)))
        Parameters:
        sizeMatcher - a matcher for the number of items that should be yielded by an examined Iterable
      • hasValue

        public static <V> Matcher<java.util.Map<?,​? extends V>> hasValue​(V value)
        Creates a matcher for Maps matching when the examined Map contains at least one value that is equal to the specified value.

        For example:

        assertThat(myMap, hasValue("foo"))
        Parameters:
        value - the value that satisfying maps must contain
      • hasValue

        public static <V> Matcher<java.util.Map<?,​? extends V>> hasValue​(Matcher<? super V> valueMatcher)
        Creates a matcher for Maps matching when the examined Map contains at least one value that satisfies the specified valueMatcher.

        For example:

        assertThat(myMap, hasValue(equalTo("foo")))
        Parameters:
        valueMatcher - the matcher that must be satisfied by at least one value
      • hasKey

        public static <K> Matcher<java.util.Map<? extends K,​?>> hasKey​(Matcher<? super K> keyMatcher)
        Creates a matcher for Maps matching when the examined Map contains at least one key that satisfies the specified matcher.

        For example:

        assertThat(myMap, hasKey(equalTo("bar")))
        Parameters:
        keyMatcher - the matcher that must be satisfied by at least one key
      • hasKey

        public static <K> Matcher<java.util.Map<? extends K,​?>> hasKey​(K key)
        Creates a matcher for Maps matching when the examined Map contains at least one key that is equal to the specified key.

        For example:

        assertThat(myMap, hasKey("bar"))
        Parameters:
        key - the key that satisfying maps must contain
      • hasEntry

        public static <K,​V> Matcher<java.util.Map<? extends K,​? extends V>> hasEntry​(K key,
                                                                                                 V value)
        Creates a matcher for Maps matching when the examined Map contains at least one entry whose key equals the specified key and whose value equals the specified value.

        For example:

        assertThat(myMap, hasEntry("bar", "foo"))
        Parameters:
        key - the key that, in combination with the value, must be describe at least one entry
        value - the value that, in combination with the key, must be describe at least one entry
      • hasEntry

        public static <K,​V> Matcher<java.util.Map<? extends K,​? extends V>> hasEntry​(Matcher<? super K> keyMatcher,
                                                                                                 Matcher<? super V> valueMatcher)
        Creates a matcher for Maps matching when the examined Map contains at least one entry whose key satisfies the specified keyMatcher and whose value satisfies the specified valueMatcher.

        For example:

        assertThat(myMap, hasEntry(equalTo("bar"), equalTo("foo")))
        Parameters:
        keyMatcher - the key matcher that, in combination with the valueMatcher, must be satisfied by at least one entry
        valueMatcher - the value matcher that, in combination with the keyMatcher, must be satisfied by at least one entry
      • isIn

        public static <T> Matcher<T> isIn​(java.util.Collection<T> collection)
        Creates a matcher that matches when the examined object is found within the specified collection.

        For example:

        assertThat("foo", isIn(Arrays.asList("bar", "foo")))
        Parameters:
        collection - the collection in which matching items must be found
      • isIn

        public static <T> Matcher<T> isIn​(T[] elements)
        Creates a matcher that matches when the examined object is found within the specified array.

        For example:

        assertThat("foo", isIn(new String[]{"bar", "foo"}))
        Parameters:
        elements - the array in which matching items must be found
      • isOneOf

        public static <T> Matcher<T> isOneOf​(T... elements)
        Creates a matcher that matches when the examined object is equal to one of the specified elements.

        For example:

        assertThat("foo", isIn("bar", "foo"))
        Parameters:
        elements - the elements amongst which matching items will be found
      • closeTo

        public static Matcher<java.lang.Double> closeTo​(double operand,
                                                        double error)
        Creates a matcher of Doubles that matches when an examined double is equal to the specified operand, within a range of +/- error.

        For example:

        assertThat(1.03, is(closeTo(1.0, 0.03)))
        Parameters:
        operand - the expected value of matching doubles
        error - the delta (+/-) within which matches will be allowed
      • closeTo

        public static Matcher<java.math.BigDecimal> closeTo​(java.math.BigDecimal operand,
                                                            java.math.BigDecimal error)
        Creates a matcher of BigDecimals that matches when an examined BigDecimal is equal to the specified operand, within a range of +/- error. The comparison for equality is done by BigDecimals BigDecimal.compareTo(java.math.BigDecimal) method.

        For example:

        assertThat(new BigDecimal("1.03"), is(closeTo(new BigDecimal("1.0"), new BigDecimal("0.03"))))
        Parameters:
        operand - the expected value of matching BigDecimals
        error - the delta (+/-) within which matches will be allowed
      • comparesEqualTo

        public static <T extends java.lang.Comparable<T>> Matcher<T> comparesEqualTo​(T value)
        Creates a matcher of Comparable object that matches when the examined object is equal to the specified value, as reported by the compareTo method of the examined object.

        For example:

        assertThat(1, comparesEqualTo(1))
        Parameters:
        value - the value which, when passed to the compareTo method of the examined object, should return zero
      • greaterThan

        public static <T extends java.lang.Comparable<T>> Matcher<T> greaterThan​(T value)
        Creates a matcher of Comparable object that matches when the examined object is greater than the specified value, as reported by the compareTo method of the examined object.

        For example:

        assertThat(2, greaterThan(1))
        Parameters:
        value - the value which, when passed to the compareTo method of the examined object, should return greater than zero
      • greaterThanOrEqualTo

        public static <T extends java.lang.Comparable<T>> Matcher<T> greaterThanOrEqualTo​(T value)
        Creates a matcher of Comparable object that matches when the examined object is greater than or equal to the specified value, as reported by the compareTo method of the examined object.

        For example:

        assertThat(1, greaterThanOrEqualTo(1))
        Parameters:
        value - the value which, when passed to the compareTo method of the examined object, should return greater than or equal to zero
      • lessThan

        public static <T extends java.lang.Comparable<T>> Matcher<T> lessThan​(T value)
        Creates a matcher of Comparable object that matches when the examined object is less than the specified value, as reported by the compareTo method of the examined object.

        For example:

        assertThat(1, lessThan(2))
        Parameters:
        value - the value which, when passed to the compareTo method of the examined object, should return less than zero
      • lessThanOrEqualTo

        public static <T extends java.lang.Comparable<T>> Matcher<T> lessThanOrEqualTo​(T value)
        Creates a matcher of Comparable object that matches when the examined object is less than or equal to the specified value, as reported by the compareTo method of the examined object.

        For example:

        assertThat(1, lessThanOrEqualTo(1))
        Parameters:
        value - the value which, when passed to the compareTo method of the examined object, should return less than or equal to zero
      • equalToIgnoringCase

        public static Matcher<java.lang.String> equalToIgnoringCase​(java.lang.String expectedString)
        Creates a matcher of String that matches when the examined string is equal to the specified expectedString, ignoring case.

        For example:

        assertThat("Foo", equalToIgnoringCase("FOO"))
        Parameters:
        expectedString - the expected value of matched strings
      • equalToIgnoringWhiteSpace

        public static Matcher<java.lang.String> equalToIgnoringWhiteSpace​(java.lang.String expectedString)
        Creates a matcher of String that matches when the examined string is equal to the specified expectedString, when whitespace differences are (mostly) ignored. To be exact, the following whitespace rules are applied:
        • all leading and trailing whitespace of both the expectedString and the examined string are ignored
        • any remaining whitespace, appearing within either string, is collapsed to a single space before comparison

        For example:

        assertThat("   my\tfoo  bar ", equalToIgnoringWhiteSpace(" my  foo bar"))
        Parameters:
        expectedString - the expected value of matched strings
      • isEmptyString

        public static Matcher<java.lang.String> isEmptyString()
        Creates a matcher of String that matches when the examined string has zero length.

        For example:

        assertThat("", isEmptyString())
      • isEmptyOrNullString

        public static Matcher<java.lang.String> isEmptyOrNullString()
        Creates a matcher of String that matches when the examined string is null, or has zero length.

        For example:

        assertThat(((String)null), isEmptyString())
      • stringContainsInOrder

        public static Matcher<java.lang.String> stringContainsInOrder​(java.lang.Iterable<java.lang.String> substrings)
        Creates a matcher of String that matches when the examined string contains all of the specified substrings, regardless of the order of their appearance.

        For example:

        assertThat("myfoobarbaz", stringContainsInOrder(Arrays.asList("bar", "foo")))
        Parameters:
        substrings - the substrings that must be contained within matching strings
      • hasToString

        public static <T> Matcher<T> hasToString​(java.lang.String expectedToString)
        Creates a matcher that matches any examined object whose toString method returns a value equalTo the specified string.

        For example:

        assertThat(true, hasToString("TRUE"))
        Parameters:
        expectedToString - the expected toString result
      • hasToString

        public static <T> Matcher<T> hasToString​(Matcher<? super java.lang.String> toStringMatcher)
        Creates a matcher that matches any examined object whose toString method returns a value that satisfies the specified matcher.

        For example:

        assertThat(true, hasToString(equalTo("TRUE")))
        Parameters:
        toStringMatcher - the matcher used to verify the toString result
      • typeCompatibleWith

        public static <T> Matcher<java.lang.Class<?>> typeCompatibleWith​(java.lang.Class<T> baseType)
        Creates a matcher of Class that matches when the specified baseType is assignable from the examined class.

        For example:

        assertThat(Integer.class, typeCompatibleWith(Number.class))
        Parameters:
        baseType - the base class to examine classes against
      • eventFrom

        public static Matcher<java.util.EventObject> eventFrom​(java.lang.Object source)
        Creates a matcher of EventObject that matches any EventObject announced by source.

        For example:
        assertThat(myEvent, is(eventFrom(myBean)))
        Parameters:
        source - the source of the event
      • eventFrom

        public static Matcher<java.util.EventObject> eventFrom​(java.lang.Class<? extends java.util.EventObject> eventClass,
                                                               java.lang.Object source)
        Creates a matcher of EventObject that matches any object derived from eventClass announced by source.

        For example:
        assertThat(myEvent, is(eventFrom(PropertyChangeEvent.class, myBean)))
        Parameters:
        eventClass - the class of the event to match on
        source - the source of the event
      • hasProperty

        public static <T> Matcher<T> hasProperty​(java.lang.String propertyName)
        Creates a matcher that matches when the examined object has a JavaBean property with the specified name.

        For example:

        assertThat(myBean, hasProperty("foo"))
        Parameters:
        propertyName - the name of the JavaBean property that examined beans should possess
      • hasProperty

        public static <T> Matcher<T> hasProperty​(java.lang.String propertyName,
                                                 Matcher<?> valueMatcher)
        Creates a matcher that matches when the examined object has a JavaBean property with the specified name whose value satisfies the specified matcher.

        For example:

        assertThat(myBean, hasProperty("foo", equalTo("bar"))
        Parameters:
        propertyName - the name of the JavaBean property that examined beans should possess
        valueMatcher - a matcher for the value of the specified property of the examined bean
      • samePropertyValuesAs

        public static <T> Matcher<T> samePropertyValuesAs​(T expectedBean)
        Creates a matcher that matches when the examined object has values for all of its JavaBean properties that are equal to the corresponding values of the specified bean.

        For example:

        assertThat(myBean, samePropertyValuesAs(myExpectedBean))
        Parameters:
        expectedBean - the bean against which examined beans are compared
      • hasXPath

        public static Matcher<org.w3c.dom.Node> hasXPath​(java.lang.String xPath,
                                                         javax.xml.namespace.NamespaceContext namespaceContext)
        Creates a matcher of Nodes that matches when the examined node contains a node at the specified xPath within the specified namespace context, with any content.

        For example:

        assertThat(xml, hasXPath("/root/something[2]/cheese", myNs))
        Parameters:
        xPath - the target xpath
        namespaceContext - the namespace for matching nodes
      • hasXPath

        public static Matcher<org.w3c.dom.Node> hasXPath​(java.lang.String xPath,
                                                         javax.xml.namespace.NamespaceContext namespaceContext,
                                                         Matcher<java.lang.String> valueMatcher)
        Creates a matcher of Nodes that matches when the examined node has a value at the specified xPath, within the specified namespaceContext, that satisfies the specified valueMatcher.

        For example:

        assertThat(xml, hasXPath("/root/something[2]/cheese", myNs, equalTo("Cheddar")))
        Parameters:
        xPath - the target xpath
        namespaceContext - the namespace for matching nodes
        valueMatcher - matcher for the value at the specified xpath
      • hasXPath

        public static Matcher<org.w3c.dom.Node> hasXPath​(java.lang.String xPath)
        Creates a matcher of Nodes that matches when the examined node contains a node at the specified xPath, with any content.

        For example:

        assertThat(xml, hasXPath("/root/something[2]/cheese"))
        Parameters:
        xPath - the target xpath
      • hasXPath

        public static Matcher<org.w3c.dom.Node> hasXPath​(java.lang.String xPath,
                                                         Matcher<java.lang.String> valueMatcher)
        Creates a matcher of Nodes that matches when the examined node has a value at the specified xPath that satisfies the specified valueMatcher.

        For example:

        assertThat(xml, hasXPath("/root/something[2]/cheese", equalTo("Cheddar")))
        Parameters:
        xPath - the target xpath
        valueMatcher - matcher for the value at the specified xpath