Package org.assertj.core.internal

Class ComparatorBasedComparisonStrategy

java.lang.Object

org.assertj.core.internal.AbstractComparisonStrategy

org.assertj.core.internal.ComparatorBasedComparisonStrategy

All Implemented Interfaces:

ComparisonStrategy

public class ComparatorBasedComparisonStrategy
extends AbstractComparisonStrategy

Implements ComparisonStrategy contract with a comparison strategy based on a Comparator.

Author:

Joel Costigliola

Field Summary

Fields

Modifier and Type	Field	Description
private Comparator	comparator
private String	comparatorDescription
(package private) static int	NOT_EQUAL

Constructor Summary

Constructors

Constructor	Description
ComparatorBasedComparisonStrategy(Comparator comparator)	Creates a new ComparatorBasedComparisonStrategy specifying the comparison strategy with given comparator.
ComparatorBasedComparisonStrategy(Comparator comparator, String comparatorDescription)	Creates a new ComparatorBasedComparisonStrategy specifying the comparison strategy with given comparator and comparator description

Method Summary

Modifier and Type	Method	Description
boolean	areEqual(Object actual, Object other)	Returns true if actual and other are equal according to comparator, false otherwise. Handles the cases where one of the parameter is null so that internal comparator does not have too.
String	asText()
Iterable<?>	duplicatesFrom(Iterable<?> iterable)	Returns any duplicate elements from the given Iterable according to comparator.
Comparator<?>	getComparator()
String	getComparatorDescription()
boolean	isGreaterThan(Object actual, Object other)	Returns true if actual is greater than other, false otherwise.
boolean	isStandard()	Return true if comparison strategy is default/standard, false otherwise
boolean	iterableContains(Iterable<?> iterable, Object value)	Returns true if given Iterable contains given value according to comparator, false otherwise. If given Iterable is null or empty, return false.
void	iterableRemoves(Iterable<?> iterable, Object value)	Look for given value in given Iterable according to the Comparator, if value is found it is removed from it. Does nothing if given Iterable is null (meaning no exception thrown).
void	iterablesRemoveFirst(Iterable<?> iterable, Object value)	Removes the first value in iterable that matches the value according to the implemented comparison strategy.
protected Set<Object>	newSetUsingComparisonStrategy()	Returns a Set honoring the comparison strategy used.
boolean	stringContains(String string, String sequence)	Returns true if given string contains given sequence according to the implemented comparison strategy, false otherwise.
boolean	stringEndsWith(String string, String suffix)	Returns true if string ends with suffix according to the implemented comparison strategy, false otherwise.
boolean	stringStartsWith(String string, String prefix)	Returns true if string starts with prefix according to the implemented comparison strategy, false otherwise.
String	toString()

Methods inherited from class org.assertj.core.internal.AbstractComparisonStrategy

arrayContains, isGreaterThanOrEqualTo, isLessThan, isLessThanOrEqualTo

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

NOT_EQUAL

static final int NOT_EQUAL

See Also:

Constant Field Values

comparator

private final Comparator comparator

comparatorDescription

private final String comparatorDescription

Constructor Detail

ComparatorBasedComparisonStrategy

public ComparatorBasedComparisonStrategy(Comparator comparator)

Creates a new ComparatorBasedComparisonStrategy specifying the comparison strategy with given comparator.

Parameters:

comparator - the comparison strategy to use.

ComparatorBasedComparisonStrategy

public ComparatorBasedComparisonStrategy(Comparator comparator,
                                         String comparatorDescription)

Creates a new ComparatorBasedComparisonStrategy specifying the comparison strategy with given comparator and comparator description

Parameters:

comparator - the comparison strategy to use.

comparatorDescription - the comparator description to use in assertion messages.

Method Detail

iterableContains

public boolean iterableContains(Iterable<?> iterable,
                                Object value)

Returns true if given Iterable contains given value according to comparator, false otherwise.
If given Iterable is null or empty, return false.

Parameters:

iterable - the Iterable to search value in

value - the object to look for in given Iterable

Returns:

true if given Iterable contains given value according to comparator, false otherwise.

iterableRemoves

public void iterableRemoves(Iterable<?> iterable,
                            Object value)

Look for given value in given Iterable according to the Comparator, if value is found it is removed from it.
Does nothing if given Iterable is null (meaning no exception thrown).

Parameters:

iterable - the Iterable we want remove value from

value - object to remove from given Iterable

iterablesRemoveFirst

public void iterablesRemoveFirst(Iterable<?> iterable,
                                 Object value)

Description copied from interface: ComparisonStrategy

Removes the first value in iterable that matches the value according to the implemented comparison strategy. If given Iterable is null, does nothing.

Parameters:

iterable - the Iterable we want remove value from

value - object to remove from given Iterable

areEqual

public boolean areEqual(Object actual,
                        Object other)

Returns true if actual and other are equal according to comparator, false otherwise.
Handles the cases where one of the parameter is null so that internal comparator does not have too.

Parameters:

actual - the object to compare to other

other - the object to compare to actual

Returns:

true if actual and other are equal according to comparator, false otherwise.

duplicatesFrom

public Iterable<?> duplicatesFrom(Iterable<?> iterable)

Returns any duplicate elements from the given Iterable according to comparator.

Specified by:

duplicatesFrom in interface ComparisonStrategy

Overrides:

duplicatesFrom in class AbstractComparisonStrategy

Parameters:

iterable - the given Iterable we want to extract duplicate elements.

Returns:

an Iterable containing the duplicate elements of the given one. If no duplicates are found, an empty Iterable is returned.

newSetUsingComparisonStrategy

protected Set<Object> newSetUsingComparisonStrategy()

Description copied from class: AbstractComparisonStrategy

Returns a Set honoring the comparison strategy used.

Specified by:

newSetUsingComparisonStrategy in class AbstractComparisonStrategy

Returns:

a Set honoring the comparison strategy used.

asText

public String asText()

Specified by:

asText in class AbstractComparisonStrategy

toString

public String toString()

Overrides:

toString in class Object

getComparator

public Comparator<?> getComparator()

getComparatorDescription

public String getComparatorDescription()

stringStartsWith

public boolean stringStartsWith(String string,
                                String prefix)

Description copied from interface: ComparisonStrategy

Returns true if string starts with prefix according to the implemented comparison strategy, false otherwise.

Parameters:

string - the String we want to look starting prefix

prefix - the prefix String to look for at string's start

Returns:

true if string starts with prefix according to the implemented comparison strategy, false otherwise.

stringEndsWith

public boolean stringEndsWith(String string,
                              String suffix)

Description copied from interface: ComparisonStrategy

Returns true if string ends with suffix according to the implemented comparison strategy, false otherwise.

Parameters:

string - the String we want to look starting suffix

suffix - the suffix String to look for at string's end

Returns:

true if string ends with suffix according to the implemented comparison strategy, false otherwise.

stringContains

public boolean stringContains(String string,
                              String sequence)

Description copied from interface: ComparisonStrategy

Returns true if given string contains given sequence according to the implemented comparison strategy, false otherwise.

Parameters:

string - the string to search sequence in (must not be null)

sequence - the String to look for in given string

Returns:

true if given string contains given sequence according to the implemented comparison strategy, false otherwise.

isGreaterThan

public boolean isGreaterThan(Object actual,
                             Object other)

Description copied from interface: ComparisonStrategy

Returns true if actual is greater than other, false otherwise.

Parameters:

actual - the object to compare to other

other - the object to compare to actual

Returns:

true if actual is greater than other, false otherwise.

isStandard

public boolean isStandard()

Description copied from interface: ComparisonStrategy

Return true if comparison strategy is default/standard, false otherwise

Specified by:

isStandard in interface ComparisonStrategy

Overrides:

isStandard in class AbstractComparisonStrategy

Returns:

true if comparison strategy is default/standard, false otherwise