All Classes

Class	Description
AlcoholicMergePolicy	Merge policy for testing, it is like an alcoholic.
AllDeletedFilterReader	Filters the incoming reader and makes all documents appear deleted.
AssertingCodec	Acts like the default codec but with additional asserts.
AssertingCollector	A collector that asserts that it is used correctly.
AssertingDirectoryReader	A DirectoryReader that wraps all its subreaders with AssertingLeafReader
AssertingDocValuesFormat	Just like the default but with additional asserts.
AssertingIndexSearcher	Helper class that adds some extra checks to ensure correct usage of IndexSearcher and Weight.
AssertingKnnVectorsFormat	Wraps the default KnnVectorsFormat and provides additional assertions.
AssertingLeafReader	A FilterLeafReader that can be used to apply additional checks for tests.
AssertingLeafReader.AssertingBinaryDocValues	Wraps a BinaryDocValues but with additional asserts
AssertingLeafReader.AssertingBits	Wraps a Bits but with additional asserts
AssertingLeafReader.AssertingFields	Wraps a Fields but with additional asserts
AssertingLeafReader.AssertingImpactsEnum	Wraps a ImpactsEnum with additional checks
AssertingLeafReader.AssertingNumericDocValues	Wraps a NumericDocValues but with additional asserts
AssertingLeafReader.AssertingPointValues	Wraps a SortedSetDocValues but with additional asserts
AssertingLeafReader.AssertingPostingsEnum	Wraps a docsenum with additional checks
AssertingLeafReader.AssertingSortedDocValues	Wraps a SortedDocValues but with additional asserts
AssertingLeafReader.AssertingSortedNumericDocValues	Wraps a SortedNumericDocValues but with additional asserts
AssertingLeafReader.AssertingSortedSetDocValues	Wraps a SortedSetDocValues but with additional asserts
AssertingLeafReader.AssertingStoredFields	Wraps a StoredFields but with additional asserts
AssertingLeafReader.AssertingTerms	Wraps a Terms but with additional asserts
AssertingLeafReader.AssertingTermVectors	Wraps a TermVectors but with additional asserts
AssertingLiveDocsFormat	Just like the default live docs format but with additional asserts.
AssertingMatches	An implementation of Matches with additional consistency checks.
AssertingNormsFormat	Just like the default but with additional asserts.
AssertingPointsFormat	Just like the default point format but with additional asserts.
AssertingPostingsFormat	Just like the default postings format but with additional asserts.
AssertingQuery	Assertion-enabled query.
AssertingScorable	Wraps another Scorable and asserts that scores are reasonable and only called when positioned
AssertingScorer	Wraps a Scorer with additional checks
AssertingSimilarity	wraps a similarity with checks for testing
AssertingStoredFieldsFormat	Just like the default stored fields format but with additional asserts.
AssertingTermVectorsFormat	Just like the default vectors format but with additional asserts.
AutomatonTestUtil	Utilities for testing automata.
AutomatonTestUtil.RandomAcceptedStrings	Lets you retrieve random strings accepted by an Automaton.
BaseBitSetTestCase<T extends BitSet>	Base test case for BitSets.
BaseChunkedDirectoryTestCase	Base class for Directories that "chunk" the input into blocks.
BaseCompoundFormatTestCase	Abstract class to do basic tests for a compound format.
BaseCompressingDocValuesFormatTestCase	Extends BaseDocValuesFormatTestCase to add compression checks.
BaseDirectoryTestCase	Base class for Directory implementations.
BaseDirectoryWrapper	Calls check index on close.
BaseDocIdSetTestCase<T extends DocIdSet>	Base test class for DocIdSets.
BaseDocValuesFormatTestCase	Abstract class to do basic tests for a docvalues format.
BaseExplanationTestCase	Tests primitive queries (ie: that rewrite to themselves) to insure they match the expected set of docs, and that the score of each match is equal to the value of the scores explanation.
BaseFieldInfoFormatTestCase	Abstract class to do basic tests for fis format.
BaseGeoPointTestCase	Abstract class to do basic tests for a geospatial impl (high level fields and queries) NOTE: This test focuses on geospatial (distance queries, polygon queries, etc) indexing and search, not any underlying storage format or encoding: it merely supplies two hooks for the encoding so that tests can be exact.
BaseIndexFileFormatTestCase	Common tests to all index formats.
BaseIndexFileFormatTestCase.FileTrackingDirectoryWrapper	A directory that tracks created files that haven't been deleted.
BaseIndexFileFormatTestCase.ReadBytesDirectoryWrapper	A directory that tracks read bytes.
BaseKnnVectorsFormatTestCase	Base class aiming at testing vectors formats.
BaseLiveDocsFormatTestCase	Abstract class that performs basic testing of a codec's LiveDocsFormat.
BaseLockFactoryTestCase	Base class for per-LockFactory tests.
BaseMergePolicyTestCase	Base test case for MergePolicy.
BaseMergePolicyTestCase.IOStats	Statistics about bytes written to storage.
BaseMergePolicyTestCase.MockMergeContext	Simple mock merge context for tests
BaseNormsFormatTestCase	Abstract class to do basic tests for a norms format.
BasePointsFormatTestCase	Abstract class to do basic tests for a points format.
BasePostingsFormatTestCase	Abstract class to do basic tests for a postings format.
BaseRangeFieldQueryTestCase	Abstract class to do basic tests for a RangeField query.
BaseRangeFieldQueryTestCase.Range	base class for range verification
BaseRangeFieldQueryTestCase.Range.QueryType	supported query relations
BaseSegmentInfoFormatTestCase	Abstract class to do basic tests for si format.
BaseSimilarityTestCase	Abstract class to do basic tests for a similarity.
BaseStoredFieldsFormatTestCase	Base class aiming at testing stored fields formats.
BaseTermVectorsFormatTestCase	Base class aiming at testing term vectors formats.
BaseTermVectorsFormatTestCase.Options	A combination of term vectors options.
BaseTermVectorsFormatTestCase.RandomTokenStream	Produces a random TokenStream based off of provided terms.
BaseTestCheckIndex	Base class for CheckIndex tests.
BaseTokenStreamFactoryTestCase	Base class for testing tokenstream factories.
BaseTokenStreamTestCase	Base class for all Lucene unit tests that use TokenStreams.
BaseTokenStreamTestCase.CheckClearAttributesAttribute	Attribute that records if it was cleared or not.
BaseTokenStreamTestCase.CheckClearAttributesAttributeImpl	Attribute that records if it was cleared or not.
BaseXYPointTestCase	Abstract class to do basic tests for a xy spatial impl (high level fields and queries)
BlockScoreQueryWrapper	Query wrapper that reduces the size of max-score blocks to more easily detect problems with the max-score logic.
BulkScorerWrapperScorer	A BulkScorer-backed scorer.
CannedBinaryTokenStream	TokenStream from a canned list of binary (BytesRef-based) tokens.
CannedBinaryTokenStream.BinaryToken	Represents a binary token.
CannedTokenStream	TokenStream from a canned list of Tokens.
CheapBastardCodec	Codec that tries to use as little ram as possible because he spent all his money on beer
CheckHits	Utility class for asserting expected hits in tests.
CheckHits.ExplanationAsserter	Asserts that the score explanation for every document matching a query corresponds with the true score.
CheckHits.ExplanationAssertingSearcher	an IndexSearcher that implicitly checks hte explanation of every match whenever it executes a search.
CheckHits.MatchesAsserter	Asserts that the Matches from a query is non-null whenever the document its created for is a hit.
CheckHits.SetCollector	Just collects document ids into a set.
CollationTestBase	Base test class for testing Unicode collation.
CompressingCodec	A codec that uses Lucene90CompressingStoredFieldsFormat for its stored fields and delegates to the default codec for everything else.
ConfigurableMCodec	This codec allows customization of the number of connections made for an hnsw index.
CorruptingIndexOutput	Corrupts on bit of a file after close
CrankyCodec	Codec for testing that throws random IOExceptions
CrankyTokenFilter	Throws IOException from random Tokenstream methods.
DeflateWithPresetCompressingCodec	CompressionCodec that uses DeflateWithPresetDictCompressionMode.
DisableFsyncFS	Disables actual calls to fsync.
DisablingBulkScorerQuery	A Query wrapper that disables bulk-scoring optimizations.
DocHelper	Helper functions for tests that handles documents
DummyCompressingCodec	CompressionCodec that does not compress data, useful for testing.
DummyTotalHitCountCollector	A dummy version of TotalHitCountCollector that doesn't shortcut using Weight.count(org.apache.lucene.index.LeafReaderContext).
EarthDebugger	Draws shapes on the earth surface and renders using the very cool http://www.webglearth.org.
EmojiTokenizationTestUnicode_12_1	This class was automatically generated by generateEmojiTokenizationTest.pl.
English	Converts numbers to english strings for testing.
ExtrasFS	Adds extra files/subdirectories when directories are created.
FailOnNonBulkMergesInfoStream	Hackidy-Häck-Hack to cause a test to fail on non-bulk merges
FailureMarker	A RunListener that detects suite/ test failures.
FastCompressingCodec	CompressionCodec that uses CompressionMode.FAST
FastDecompressionCompressingCodec	CompressionCodec that uses CompressionMode.FAST_DECOMPRESSION
FieldFilterLeafReader	A FilterLeafReader that exposes only a subset of fields from the underlying wrapped reader.
FilterAsynchronousFileChannel	A FilterAsynchronousFileChannel contains another AsynchronousFileChannel, which it uses as its basic source of data, possibly transforming the data along the way or providing additional functionality.
FilterDirectoryStream	A FilterDirectoryStream contains another DirectoryStream, which it uses as its basic source of data, possibly transforming the data along the way or providing additional functionality.
FilterFileChannel	A FilterFileChannel contains another FileChannel, which it uses as its basic source of data, possibly transforming the data along the way or providing additional functionality.
FilterFileStore	A FilterFileStore contains another FileStore, which it uses as its basic source of data, possibly transforming the data along the way or providing additional functionality.
FilterFileSystem	A FilterFileSystem contains another FileSystem, which it uses as its basic source of data, possibly transforming the data along the way or providing additional functionality.
FilterFileSystemProvider	A FilterFileSystemProvider contains another FileSystemProvider, which it uses as its basic source of data, possibly transforming the data along the way or providing additional functionality.
FilterInputStream2	A FilterInputStream2 contains another InputStream, which it uses as its basic source of data, possibly transforming the data along the way or providing additional functionality.
FilterOutputStream2	A FilterOutputStream2 contains another OutputStream, which it uses as its basic source of data, possibly transforming the data along the way or providing additional functionality.
FilterPath	A FilterPath contains another Path, which it uses as its basic source of data, possibly transforming the data along the way or providing additional functionality.
FilterSeekableByteChannel	A FilterSeekableByteChannel contains another SeekableByteChannel, which it uses as its basic source of data, possibly transforming the data along the way or providing additional functionality.
FixedBitSetCollector	Collector that accumulates matching docs in a FixedBitSet
ForceMergePolicy	A MergePolicy that only returns forced merges.
FSTTester<T>	Helper class to test FSTs.
FSTTester.InputOutput<T>	Holds one input/output pair.
GeoTestUtil	static methods for testing geo
HandleLimitFS	FileSystem that throws exception if file handles in use exceeds a specified limit.
HandleLimitFS.MaxOpenHandles	An annotation
HandleTrackingFS	Base class for tracking file handles.
HighCompressionCompressingCodec	CompressionCodec that uses CompressionMode.HIGH_COMPRESSION
LeakFS	FileSystem that tracks open handles.
LineFileDocs	Minimal port of benchmark's LneDocSource + DocMaker, so tests can enum docs from a line file created by benchmark's WriteLineDoc task
LookaheadTokenFilter<T extends LookaheadTokenFilter.Position>	An abstract TokenFilter to make it easier to build graph token filters requiring some lookahead.
LookaheadTokenFilter.Position	Holds all state for a single position; subclass this to record other state at each position.
LuceneFixedGap	Customized version of Lucene912PostingsFormat that uses FixedGapTermsIndexWriter.
LuceneJUnit3MethodProvider	Backwards compatible test* method provider (public, non-static).
LuceneTestCase	Base class for all Lucene unit tests, Junit3 or Junit4 variant.
LuceneTestCase.AwaitsFix	Annotation for tests which exhibit a known issue and are temporarily disabled.
LuceneTestCase.BadApple	Annotation for tests that fail frequently and are not executed in Jenkins builds to not spam mailing lists with false reports.
LuceneTestCase.Monster	Annotation for monster tests that require special setup (e.g.
LuceneTestCase.Nightly	Annotation for tests that should only be run during nightly builds.
LuceneTestCase.SuppressCodecs	Annotation for test classes that should avoid certain codec types (because they are expensive, for example).
LuceneTestCase.SuppressFileSystems	Annotation for test classes that should avoid mock filesystem types (because they test a bug that only happens on linux, for example).
LuceneTestCase.SuppressFsync	Annotation for test classes that should avoid always omit actual fsync calls from reaching the filesystem.
LuceneTestCase.SuppressReproduceLine	Suppress the default reproduce with: ant test... Your own listener can be added as needed for your build.
LuceneTestCase.SuppressSysoutChecks	Ignore TestRuleLimitSysouts for any suite which is known to print over the default limit of bytes to System.out or System.err.
LuceneTestCase.SuppressTempFileChecks	Marks any suites which are known not to close all the temporary files.
LuceneTestCase.ThrowingConsumer<T>	A Consumer that can throw any checked exception.
LuceneTestCase.ThrowingRunnable	A runnable that can throw any checked exception.
LuceneTestCase.Weekly	Annotation for tests that should only be run during weekly builds
LuceneVarGapDocFreqInterval	Customized version of Lucene912PostingsFormat that uses VariableGapTermsIndexWriter with a fixed interval, but forcing high docfreq terms to be indexed terms.
LuceneVarGapFixedInterval	Customized version of Lucene912PostingsFormat that uses VariableGapTermsIndexWriter with a fixed interval.
LZ4WithPresetCompressingCodec	CompressionCodec that uses LZ4WithPresetDictCompressionMode.
MatchesTestBase	Base class for tests checking the Weight.matches(LeafReaderContext, int) implementations
MatchesTestBase.TermMatch	Encapsulates a term position, start and end offset
MergingCodecReader	CodecReader wrapper that performs all reads using the merging instance of the index formats.
MergingDirectoryReaderWrapper	DirectoryReader wrapper that uses the merge instances of the wrapped CodecReaders.
MismatchedCodecReader	Shuffles field numbers around to try to trip bugs where field numbers are assumed to always be consistent across segments.
MismatchedDirectoryReader	A DirectoryReader that wraps all its subreaders with MismatchedLeafReader
MismatchedLeafReader	Shuffles field numbers around to try to trip bugs where field numbers are assumed to always be consistent across segments.
MockAnalyzer	Analyzer for testing
MockBytesAnalyzer	Analyzer for testing that encodes terms as UTF-16 bytes.
MockCharFilter	the purpose of this charfilter is to send offsets out of bounds if the analyzer doesn't use correctOffset or does incorrect offset math.
MockDirectoryWrapper	This is a Directory Wrapper that adds methods intended to be used only by unit tests.
MockDirectoryWrapper.Failure	Objects that represent fail-able conditions.
MockDirectoryWrapper.FakeIOException	Use this when throwing fake IOException, e.g.
MockDirectoryWrapper.Throttling	Enum for controlling hard disk throttling.
MockFileSystemTestCase	Base class for testing mockfilesystems.
MockFixedLengthPayloadFilter	TokenFilter that adds random fixed-length payloads.
MockGraphTokenFilter	Randomly inserts overlapped (posInc=0) tokens with posLength sometimes > 1.
MockHoleInjectingTokenFilter	Randomly injects holes (similar to what a stopfilter would do)
MockIndexInputWrapper	Used by MockDirectoryWrapper to create an input stream that keeps track of when it's been closed.
MockIndexOutputWrapper	Used to create an output stream that will throw an IOException on fake disk full, track max disk space actually used, and maybe throw random IOExceptions.
MockIndexWriterEventListener	Mock IndexWriterEventListener to verify invocation of event methods
MockLowerCaseFilter	A lowercasing TokenFilter.
MockPayloadAnalyzer	Wraps a whitespace tokenizer with a filter that sets the first token, and odd tokens to posinc=1, and all others to 0, encoding the position as pos: XXX in the payload.
MockRandomLookaheadTokenFilter	Uses LookaheadTokenFilter to randomly peek at future tokens.
MockRandomMergePolicy	MergePolicy that makes random decisions for testing.
MockRandomPostingsFormat	Randomly combines terms index impl w/ postings impls.
MockReaderWrapper	Wraps a Reader, and can throw random or fixed exceptions, and spoon feed read chars.
MockSynonymAnalyzer	adds synonym of "dog" for "dogs", and synonym of "cavy" for "guinea pig".
MockSynonymFilter	adds synonym of "dog" for "dogs", and synonym of "cavy" for "guinea pig".
MockTokenFilter	A tokenfilter for testing that removes terms accepted by a DFA.
MockTokenizer	Tokenizer for testing.
MockUTF16TermAttributeImpl	Extension of CharTermAttributeImpl that encodes the term text as UTF-16 bytes instead of as UTF-8 bytes.
MockVariableLengthPayloadFilter	TokenFilter that adds random variable-length payloads.
NullInfoStream	Prints nothing.
OwnCacheKeyMultiReader	A MultiReader that has its own cache key, occasionally useful for testing purposes.
PerThreadPKLookup	Utility class to do efficient primary-key (only 1 doc contains the given term) lookups by segment, re-using the enums.
PointsStackTracker	Simple utility class to track the current BKD stack based solely on calls to PointValues.IntersectVisitor.compare(byte[], byte[]).
QueryUtils	Utility class for sanity-checking queries.
QuickPatchThreadsFilter	Last minute patches.
RAMOnlyPostingsFormat	Stores all postings data in RAM, but writes a small token (header + single int) to identify which "slot" the index is using in RAM HashMap.
RamUsageTester	Crawls object graph to collect RAM usage for testing
RamUsageTester.Accumulator	An accumulator of object references.
RandomApproximationQuery	A Query that adds random approximations to its scorers.
RandomCodec	Codec that assigns per-field random postings formats.
RandomIndexWriter	Silly class that randomizes the indexing experience.
RandomIndexWriter.TestPoint	Simple interface that is executed for each TP InfoStream component message.
RandomPostingsTester	Helper class extracted from BasePostingsFormatTestCase to exercise a postings format.
RandomPostingsTester.FieldAndTerm	Holds one field, term and ord.
RandomPostingsTester.Option	Which features to test.
RandomPostingsTester.SeedPostings	Given the same random seed this always enumerates the same random postings
RandomSimilarity	Similarity implementation that randomizes Similarity implementations per-field.
RawDirectoryWrapper	Delegates all operations, even optional ones, to the wrapped directory.
Rethrow	Sneaky: rethrowing checked exceptions as unchecked ones.
Rot13CypherTestUtil	Test utility for simple ROT13 cipher (https://en.wikipedia.org/wiki/ROT13).
RunListenerPrintReproduceInfo	A suite listener printing a "reproduce string".
ScorerIndexSearcher	An IndexSearcher that always uses the Scorer API, never BulkScorer.
SearchEquivalenceTestBase	Simple base class for checking search equivalence.
ShapeTestUtil	generates random cartesian geometry; heavy reuse of GeoTestUtil
ShardSearchingTestBase	Base test class for simulating distributed search across multiple shards.
ShardSearchingTestBase.SearcherAndVersion	An IndexSearcher and associated version (lease)
ShardSearchingTestBase.SearcherExpiredException	Thrown when the lease for a searcher has expired.
ShuffleFS	Gives an unpredictable, but deterministic order to directory listings.
SimplePayloadFilter	Simple payload filter that sets the payload as pos: XXXX
StringMockResourceLoader	Fake resource loader for tests: works if you want to fake reading a single file
STUniformSplitRot13PostingsFormat	STUniformSplitPostingsFormat with block encoding using ROT13 cypher.
SuppressingConcurrentMergeScheduler	A ConcurrentMergeScheduler that ignores AlreadyClosedException.
TestBloomFilteredLucenePostings	A class used for testing BloomFilteringPostingsFormat with a concrete delegate (Lucene41).
TestRuleAssertionsRequired	Require assertions for Lucene packages.
TestRuleIgnoreAfterMaxFailures	This rule keeps a count of failed tests (suites) and will result in an AssumptionViolatedException after a given number of failures for all tests following this condition.
TestRuleIgnoreTestSuites	This rule will cause the suite to be assumption-ignored if the test class implements a given marker interface and a special property is not set.
TestRuleIgnoreTestSuites.NestedTestSuite	Marker interface for nested suites that should be ignored if executed in stand-alone mode.
TestRuleLimitSysouts	This test rule serves two purposes: it fails the test if it prints too much to stdout and stderr (tests that chatter too much are discouraged) the rule ensures an absolute hard limit of stuff written to stdout and stderr to prevent accidental infinite loops from filling all available disk space with persisted output.
TestRuleLimitSysouts.Limit	An annotation specifying the limit of bytes per class.
TestRuleMarkFailure	A rule for marking failed tests and suites.
TestRuleRestoreSystemProperties	Restore a given set of system properties to a snapshot taken at the beginning of the rule.
TestRuleStoreClassName	Stores the suite name so you can retrieve it from TestRuleStoreClassName.getTestClass()
TestSecurityManager	A SecurityManager that prevents tests calling System.exit(int).
TestUtil	General utility methods for Lucene unit tests.
ThreadedIndexingAndSearchingTestCase	Utility class that spawns multiple indexing and searching threads.
ThrottledIndexOutput	Intentionally slow IndexOutput for testing.
TimeUnits	time unit constants for use in annotations.
Token	A Token is an occurrence of a term from the text of a field.
TokenStreamToDot	Consumes a TokenStream and outputs the dot (graphviz) string (graph).
UniformSplitRot13PostingsFormat	UniformSplitPostingsFormat with block encoding using ROT13 cypher.
ValidatingTokenFilter	A TokenFilter that checks consistency of the tokens (eg offsets are consistent with one another).
VerboseFS	FileSystem that records all major destructive filesystem activities.
VerifyTestClassNamingConvention	Enforce test naming convention.
VirusCheckingFS	Acts like a virus checker on Windows, where random programs may open the files you just wrote in an unfriendly way preventing deletion (e.g.
VocabularyAssert	Utility class for doing vocabulary-based stemming tests
WindowsFS	FileSystem that (imperfectly) acts like windows.
WordBreakTestUnicode_12_1_0	This class was automatically generated by generateJavaUnicodeWordBreakTest.pl from: http://www.unicode.org/Public/12.1.0/ucd/auxiliary/WordBreakTest.txt