org.apache.lucene.search

## Class SearchEquivalenceTestBase

- java.lang.Object
- - org.junit.Assert
  - - org.apache.lucene.util.LuceneTestCase
    - - org.apache.lucene.search.SearchEquivalenceTestBase

-     @LuceneTestCase.SuppressCodecs(value="SimpleText")
      public abstract class SearchEquivalenceTestBase
      extends LuceneTestCase

  Simple base class for checking search equivalence. Extend it, and write tests that create `randomTerm()`s (all terms are single characters a-z), and use `assertSameSet(Query, Query)` and `assertSubsetOf(Query, Query)`

- - ### Nested Class Summary

    - ### Nested classes/interfaces inherited from class org.apache.lucene.util.LuceneTestCase

      `LuceneTestCase.AwaitsFix, LuceneTestCase.BadApple, LuceneTestCase.Monster, LuceneTestCase.Nightly, LuceneTestCase.Slow, LuceneTestCase.SuppressCodecs, LuceneTestCase.SuppressFileSystems, LuceneTestCase.SuppressFsync, LuceneTestCase.SuppressReproduceLine, LuceneTestCase.SuppressSysoutChecks, LuceneTestCase.SuppressTempFileChecks, LuceneTestCase.ThrowingRunnable, LuceneTestCase.Weekly`

  - ### Field Summary

    Fields
    Modifier and Type | Field and Description
    --- | ---
    `protected static Analyzer` | `analyzer`
    `protected static Directory` | `directory`
    `protected static IndexReader` | `reader`
    `protected static IndexSearcher` | `s1`
    `protected static IndexSearcher` | `s2`
    `protected static String` | `stopword`

    - ### Fields inherited from class org.apache.lucene.util.LuceneTestCase

      `assertsAreEnabled, classRules, DEFAULT_LINE_DOCS_FILE, INFOSTREAM, JENKINS_LARGE_LINE_DOCS_FILE, LEAVE_TEMPORARY, MAYBE_CACHE_POLICY, RANDOM_MULTIPLIER, ruleChain, suiteFailureMarker, SYSPROP_AWAITSFIX, SYSPROP_BADAPPLES, SYSPROP_FAILFAST, SYSPROP_MAXFAILURES, SYSPROP_MONSTER, SYSPROP_NIGHTLY, SYSPROP_SLOW, SYSPROP_WEEKLY, TEST_ASSERTS_ENABLED, TEST_AWAITSFIX, TEST_BADAPPLES, TEST_CODEC, TEST_DIRECTORY, TEST_DOCVALUESFORMAT, TEST_LINE_DOCS_FILE, TEST_MONSTER, TEST_NIGHTLY, TEST_POSTINGSFORMAT, TEST_SLOW, TEST_THROTTLING, TEST_WEEKLY, VERBOSE`

  - ### Constructor Summary

    Constructors
    Constructor and Description
    `SearchEquivalenceTestBase()`

  - ### Method Summary

    All Methods Static Methods Instance Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `static void` | `afterClass()`
    `protected void` | `assertSameScores(Query q1, Query q2)` Assert that two queries return the same documents and with the same scores.
    `protected void` | `assertSameScores(Query q1, Query q2, Query filter)`
    `void` | `assertSameSet(Query q1, Query q2)` Asserts that the documents returned by `q1` are the same as of those returned by `q2`
    `void` | `assertSubsetOf(Query q1, Query q2)` Asserts that the documents returned by `q1` are a subset of those returned by `q2`
    `protected void` | `assertSubsetOf(Query q1, Query q2, Query filter)` Asserts that the documents returned by `q1` are a subset of those returned by `q2`.
    `static void` | `beforeClass()`
    `protected Query` | `filteredQuery(Query query, Query filter)`
    `protected Query` | `randomFilter()` Returns a random filter over the document set
    `protected Term` | `randomTerm()` returns a term suitable for searching.

    - ### Methods inherited from class org.apache.lucene.util.LuceneTestCase

      `addVirusChecker, assertDeletedDocsEquals, assertDocsAndPositionsEnumEquals, assertDocsEnumEquals, assertDocsSkippingEquals, assertDocValuesEquals, assertDocValuesEquals, assertFieldInfosEquals, assertNormsEquals, assertPointsEquals, assertPositionsSkippingEquals, assertReaderEquals, assertReaderStatisticsEquals, assertStoredFieldEquals, assertStoredFieldsEquals, assertTermsEnumEquals, assertTermsEquals, assertTermsEquals, assertTermsStatisticsEquals, assertTermStatsEquals, assertTermVectorsEquals, asSet, assumeFalse, assumeNoException, assumeTrue, assumeWorkingMMapOnWindows, atLeast, atLeast, callStackContains, callStackContains, callStackContainsAnyOf, closeAfterSuite, closeAfterTest, collate, createTempDir, createTempDir, createTempFile, createTempFile, dumpArray, dumpIterator, ensureSaneIWCOnNightly, expectThrows, expectThrows, expectThrows, expectThrowsAnyOf, expectThrowsAnyOf, getBaseTempDirForTestClass, getDataInputStream, getDataPath, getOnlyLeafReader, getTestClass, getTestName, hasWorkingMMapOnWindows, isTestThread, localeForLanguageTag, maybeChangeLiveIndexWriterConfig, maybeWrapReader, newAlcoholicMergePolicy, newAlcoholicMergePolicy, newBytesRef, newBytesRef, newBytesRef, newBytesRef, newBytesRef, newBytesRef, newDirectory, newDirectory, newDirectory, newDirectory, newDirectory, newField, newField, newFSDirectory, newFSDirectory, newIndexWriterConfig, newIndexWriterConfig, newIndexWriterConfig, newIOContext, newIOContext, newLogMergePolicy, newLogMergePolicy, newLogMergePolicy, newLogMergePolicy, newLogMergePolicy, newMaybeVirusCheckingDirectory, newMaybeVirusCheckingFSDirectory, newMergePolicy, newMergePolicy, newMergePolicy, newMockDirectory, newMockDirectory, newMockDirectory, newMockFSDirectory, newMockFSDirectory, newSearcher, newSearcher, newSearcher, newSearcher, newStringField, newStringField, newStringField, newStringField, newTextField, newTextField, newTieredMergePolicy, newTieredMergePolicy, overrideDefaultQueryCache, overrideTestDefaultQueryCache, random, randomLocale, randomTimeZone, rarely, rarely, replaceMaxFailureRule, resetDefaultQueryCache, restoreCPUCoreCount, restoreIndexWriterMaxDocs, restoreSpins, runWithRestrictedPermissions, setIndexWriterMaxDocs, setUp, setupCPUCoreCount, setupSpins, slowFileExists, tearDown, usually, usually, wrapReader`

    - ### Methods inherited from class org.junit.Assert

      `assertArrayEquals, assertArrayEquals, assertArrayEquals, assertArrayEquals, assertArrayEquals, assertArrayEquals, assertArrayEquals, assertArrayEquals, assertArrayEquals, assertArrayEquals, assertArrayEquals, assertArrayEquals, assertArrayEquals, assertArrayEquals, assertArrayEquals, assertArrayEquals, assertArrayEquals, assertArrayEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertFalse, assertFalse, assertNotEquals, assertNotEquals, assertNotEquals, assertNotEquals, assertNotEquals, assertNotEquals, assertNotEquals, assertNotEquals, assertNotNull, assertNotNull, assertNotSame, assertNotSame, assertNull, assertNull, assertSame, assertSame, assertThat, assertThat, assertThrows, assertThrows, assertTrue, assertTrue, fail, fail`

    - ### Methods inherited from class java.lang.Object

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

- - ### Field Detail

    - #### s1

          protected static IndexSearcher s1

    - #### s2

          protected static IndexSearcher s2

    - #### directory

          protected static Directory directory

    - #### reader

          protected static IndexReader reader

    - #### analyzer

          protected static Analyzer analyzer

    - #### stopword

          protected static String stopword

  - ### Constructor Detail

    - #### SearchEquivalenceTestBase

          public SearchEquivalenceTestBase()

  - ### Method Detail

    - #### beforeClass

          public static void beforeClass()
                                  throws Exception

      Throws:
        `Exception`

    - #### afterClass

          public static void afterClass()
                                 throws Exception

      Throws:
        `Exception`

    - #### randomTerm

          protected Term randomTerm()

      returns a term suitable for searching. terms are single characters in lowercase (a-z)

    - #### randomFilter

          protected Query randomFilter()

      Returns a random filter over the document set

    - #### assertSameSet

          public void assertSameSet(Query q1,
                                    Query q2)
                             throws Exception

      Asserts that the documents returned by `q1` are the same as of those returned by `q2`
      Throws:
        `Exception`

    - #### assertSubsetOf

          public void assertSubsetOf(Query q1,
                                     Query q2)
                              throws Exception

      Asserts that the documents returned by `q1` are a subset of those returned by `q2`
      Throws:
        `Exception`

    - #### assertSubsetOf

          protected void assertSubsetOf(Query q1,
                                        Query q2,
                                        Query filter)
                                 throws Exception

      Asserts that the documents returned by `q1` are a subset of those returned by `q2`. Both queries will be filtered by `filter`
      Throws:
        `Exception`

    - #### assertSameScores

          protected void assertSameScores(Query q1,
                                          Query q2)
                                   throws Exception

      Assert that two queries return the same documents and with the same scores.
      Throws:
        `Exception`

    - #### assertSameScores

          protected void assertSameScores(Query q1,
                                          Query q2,
                                          Query filter)
                                   throws Exception

      Throws:
        `Exception`

    - #### filteredQuery

          protected Query filteredQuery(Query query,
                                        Query filter)

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