org.skyscreamer.jsonassert.comparator

Class ArraySizeComparator

java.lang.Object

org.skyscreamer.jsonassert.comparator.AbstractComparator

org.skyscreamer.jsonassert.comparator.DefaultComparator

org.skyscreamer.jsonassert.comparator.ArraySizeComparator

All Implemented Interfaces:

JSONComparator

public class ArraySizeComparator
extends DefaultComparator

A JSONAssert array size comparator.

Some typical usage idioms are listed below.

Assuming JSON to be verified is held in String variable ARRAY_OF_JSONOBJECTS and contains:

{a:[7, 8, 9]}

then:

To verify that array 'a' contains 3 elements:

JSONAssert.assertEquals("{a:[3]}", ARRAY_OF_JSONOBJECTS, new ArraySizeComparator(JSONCompareMode.LENIENT));

To verify that array 'a' contains between 2 and 6 elements:

JSONAssert.assertEquals("{a:[2,6]}", ARRAY_OF_JSONOBJECTS, new ArraySizeComparator(JSONCompareMode.LENIENT));

Author:

Duncan Mackinder

Constructor Summary

Constructors

Constructor and Description
ArraySizeComparator(JSONCompareMode mode) Create new ArraySizeComparator.

Method Summary

Modifier and Type	Method and Description
void	compareJSONArray(String prefix, org.json.JSONArray expected, org.json.JSONArray actual, JSONCompareResult result) Expected array should consist of either 1 or 2 integer values that define maximum and minimum valid lengths of the actual array.

Methods inherited from class org.skyscreamer.jsonassert.comparator.DefaultComparator

areNotSameDoubles, areNumbers, compareJSON, compareValues

Methods inherited from class org.skyscreamer.jsonassert.comparator.AbstractComparator

checkJsonObjectKeysActualInExpected, checkJsonObjectKeysExpectedInActual, compareJSON, compareJSON, compareJSONArrayOfJsonObjects, compareJSONArrayOfSimpleValues, compareJSONArrayWithStrictOrder, recursivelyCompareJSONArray

Methods inherited from class java.lang.Object

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

Constructor Detail

ArraySizeComparator

public ArraySizeComparator(JSONCompareMode mode)

Create new ArraySizeComparator.

Parameters:

mode - comparison mode, has no impact on ArraySizeComparator but is used by instance of superclass DefaultComparator to control comparison of JSON items other than arrays.

Method Detail

compareJSONArray

public void compareJSONArray(String prefix,
                             org.json.JSONArray expected,
                             org.json.JSONArray actual,
                             JSONCompareResult result)
                      throws org.json.JSONException

Expected array should consist of either 1 or 2 integer values that define maximum and minimum valid lengths of the actual array. If expected array contains a single integer value, then the actual array must contain exactly that number of elements.

Specified by:

compareJSONArray in interface JSONComparator

Overrides:

compareJSONArray in class DefaultComparator

Parameters:

prefix - the path in the json where the comparison happens

expected - the expected JSON array

actual - the actual JSON array

result - stores the actual state of the comparison result

Throws:

org.json.JSONException - JSON parsing error