### Question:
JsonReferenceReplacer { protected Matcher getMatcher(String input) { return referencePattern.matcher(input); } JsonReferenceReplacer();  JsonReferenceReplacer(String referencePrefix, String referenceSeparator, String referenceSuffix, String fallbackValueSeparator); String getPrefix(); String getSuffix(); String getSeparator(); String generateReference(String referenceName, String jsonPtrExpr); JsonReferenceComponents extractComponents(String input); ReferenceReplacementResult replaceReferences(JsonNode rootNode, Map<String, JsonNode> referenceMap); ArrayNodeReplacer getArrayNodeReplacer(); void setArrayNodeReplacer(ArrayNodeReplacer arrayNodeReplacer); ObjectNodeReplacer getObjectNodeReplacer(); void setObjectNodeReplacer(ObjectNodeReplacer objectNodeReplacer); String getReferenceName(String reference); static final String DEFAULT_REFERENCE_PREFIX; static final String DEFAULT_REFERENCE_SUFFIX; static final String DEFAULT_REFERENCE_SEPARATOR; static final String DEFAULT_FALLBACK_VALUE_SEPARATOR; static final String JACKSON_PATH_SEPARATOR; static final String REFERENCE_GROUP_NAME; static final String PATH_GROUP_NAME; }### Answer:
@Test(dataProvider = "matcherTestProvider") public void testGetMatcher(String input, boolean matchExpected, String expectedReference, String expectedPath) { Matcher matcher = jsonReferenceReplacer.getMatcher(input); Assert.assertEquals(matcher.matches(), matchExpected); if(matchExpected) { Assert.assertEquals(matcher.group(JsonReferenceReplacer.REFERENCE_GROUP_NAME), expectedReference); Assert.assertEquals(matcher.group(JsonReferenceReplacer.PATH_GROUP_NAME), expectedPath); } }