+++ /dev/null
-# coding: utf-8
-# Porter stemmer test file
-
-
-$:.unshift File.join(File.dirname(__FILE__), "..", "lib")
-
-require 'test/unit'
-require 'porter2'
-require 'test_words'
-
-class String
- public :porter2_preprocess, :porter2_r1, :porter2_r2
-end
-
-class TestPorter2 < Test::Unit::TestCase
-
- def test_preprocess
- assert_equal "abcde", "abcde".porter2_preprocess
- assert_equal "abcde", "ABCDE".porter2_preprocess
- assert_equal "ab'cde", "ab‘cde".porter2_preprocess
- assert_equal "ab'cde", "ab’cde".porter2_preprocess
- assert_equal "ab'c'de", "ab’c’de".porter2_preprocess
- assert_equal "ab'c'de", "ab‘c‘de".porter2_preprocess
- assert_equal "abcde", "''abcde".porter2_preprocess
- assert_equal "abcde", "’‘abcde".porter2_preprocess
- assert_equal "ab'c'de", "'ab‘c‘de".porter2_preprocess
- assert_equal "ab'c'de", "’‘ab‘c‘de".porter2_preprocess
- assert_equal "Yabc", "yabc".porter2_preprocess
- assert_equal "aYbc", "aybc".porter2_preprocess
- assert_equal "abcdeY", "abcdey".porter2_preprocess
- assert_equal "abaYde", "abayde".porter2_preprocess
- assert_equal "kabaYde", "kabayde".porter2_preprocess
- end
-
- def test_find_R1
- assert_equal "iful", "beautiful".porter2_r1
- assert_equal "y", "beauty".porter2_r1
- assert_equal "", "beau".porter2_r1
- assert_equal "imadversion", "animadversion".porter2_r1
- assert_equal "kled", "sprinkled".porter2_r1
- assert_equal "harist", "eucharist".porter2_r1
-
- # special cases
- assert_equal "ate", "generate".porter2_r1
- assert_equal "ates", "generates".porter2_r1
- assert_equal "ated", "generated".porter2_r1
- assert_equal "al", "general".porter2_r1
- assert_equal "ally", "generally".porter2_r1
- assert_equal "ic", "generic".porter2_r1
- assert_equal "ically", "generically".porter2_r1
- assert_equal "ous", "generous".porter2_r1
- assert_equal "ously", "generously".porter2_r1
-
- assert_equal "al", "communal".porter2_r1
- assert_equal "ity", "community".porter2_r1
- assert_equal "e", "commune".porter2_r1
-
- assert_equal "ic", "arsenic".porter2_r1
- assert_equal "al", "arsenal".porter2_r1
- end
-
- def test_ends_with_short_syllable?
- assert_equal true, "rap".porter2_ends_with_short_syllable?
- assert_equal true, "trap".porter2_ends_with_short_syllable?
- assert_equal true, "entrap".porter2_ends_with_short_syllable?
- assert_equal true, "ow".porter2_ends_with_short_syllable?
- assert_equal true, "on".porter2_ends_with_short_syllable?
- assert_equal true, "at".porter2_ends_with_short_syllable?
- assert_equal false, "uproot".porter2_ends_with_short_syllable?
- assert_equal false, "bestow".porter2_ends_with_short_syllable?
- assert_equal false, "disturb".porter2_ends_with_short_syllable?
- end
-
- def test_is_short_word?
- short_words = %w[ bed shed shred hop ]
- long_words = %w[ bead embed beds ]
- short_words.each do |w|
- r1 = w.porter2_r1
- assert_equal true, w.porter2_is_short_word?(r1),
- "#{w} should be short but classified as long"
- end
- long_words.each do |w|
- r1 = w.porter2_r1
- assert_equal false, w.porter2_is_short_word?(r1),
- "#{w} should be long but classified as short"
- end
- end
-
- def test_find_R2
- assert_equal "ul", "beautiful".porter2_r2
- assert_equal "", "beauty".porter2_r2
- assert_equal "", "beau".porter2_r2
- assert_equal "adversion", "animadversion".porter2_r2
- assert_equal "", "sprinkled".porter2_r2
- assert_equal "ist", "eucharist".porter2_r2
- end
-
- def test_step_0
- assert_equal "abc", "abc".step_0
- assert_equal "abc", "abc'".step_0
- assert_equal "abc", "abc's".step_0
- assert_equal "abc", "abc's'".step_0
- assert_equal "ab'c", "ab'c".step_0
- assert_equal "ab'sc", "ab'sc".step_0
- assert_equal "ab's'c", "ab's'c".step_0
- assert_equal "ab'sc", "ab'sc's".step_0
- end
-
- def test_step_1a
- assert_equal "abcde", "abcde".step_1a
- assert_equal "abcess", "abcesses".step_1a
- assert_equal "tie", "ties".step_1a
- assert_equal "tie", "tied".step_1a
- assert_equal "cri", "cries".step_1a
- assert_equal "cri", "cried".step_1a
- assert_equal "gas", "gas".step_1a
- assert_equal "this", "this".step_1a
- assert_equal "gap", "gaps".step_1a
- assert_equal "kiwi", "kiwis".step_1a
- assert_equal "abacus", "abacus".step_1a
- assert_equal "abcess", "abcess".step_1a
- end
-
- def test_step_1b
- assert_equal "abcde", "abcde".step_1b("abcde".porter2_r1)
- words_non_gb = {"luxuriated" => "luxuriate", "luxuriating" => "luxuriate",
- "hopping" => "hop", "hopped" => "hop",
- "hoped" => "hope", "hoping" => "hope",
- "atomized" => "atomize", "atomised" => "atomis" }
- words_non_gb.each do |original, stemmed|
- assert_equal stemmed, original.step_1b(original.porter2_r1),
- "#{original} should have stemmed to #{stemmed} but got #{original.step_1b(original.porter2_r1)} instead"
- end
- words_gb = {"luxuriated" => "luxuriate", "luxuriating" => "luxuriate",
- "hopping" => "hop", "hopped" => "hop",
- "hoped" => "hope", "hoping" => "hope",
- "atomized" => "atomize", "atomised" => "atomise" }
- words_gb.each do |original, stemmed|
- assert_equal stemmed, original.step_1b(original.porter2_r1, true),
- "#{original} should have stemmed to #{stemmed} but got #{original.step_1b(original.porter2_r1)} instead"
- end
- end
-
- def test_step_1c
- assert_equal "cri", "cry".step_1c
- assert_equal "by", "by".step_1c
- assert_equal "say", "say".step_1c
- end
-
- def test_step_2
- assert_equal "abc", "abc".step_2
-
- assert_equal "nationalize", "nationalization".step_2
- assert_equal "nationalisate", "nationalisation".step_2
- assert_equal "nationalize", "nationalization".step_2(true)
- assert_equal "nationalise", "nationalisation".step_2(true)
- # Repeat the steps to ensure that the english-gb behaviour isn't sticky
- assert_equal "nationalize", "nationalization".step_2(false)
- assert_equal "nationalisate", "nationalisation".step_2(false)
- assert_equal "nationalize", "nationalization".step_2
- assert_equal "nationalisate", "nationalisation".step_2
-
- assert_equal "nationalize", "nationalizer".step_2
- assert_equal "nationaliser", "nationaliser".step_2
- assert_equal "nationalize", "nationalizer".step_2(true)
- assert_equal "nationalise", "nationaliser".step_2(true)
-
- assert_equal "abction", "abctional".step_2
- assert_equal "abcence", "abcenci".step_2
- assert_equal "abcance", "abcanci".step_2
- assert_equal "abcable", "abcabli".step_2
- assert_equal "abcent", "abcentli".step_2
- assert_equal "abcize", "abcizer".step_2
- assert_equal "abcize", "abcization".step_2
- assert_equal "abcate", "abcational".step_2
- assert_equal "abcate", "abcation".step_2
- assert_equal "abcate", "abcator".step_2
- assert_equal "abcal", "abcalism".step_2
- assert_equal "abcal", "abcaliti".step_2
- assert_equal "abcal", "abcalli".step_2
- assert_equal "abcful", "abcfulness".step_2
- assert_equal "abcous", "abcousli".step_2
- assert_equal "abcous", "abcousness".step_2
- assert_equal "abcive", "abciveness".step_2
- assert_equal "abcive", "abciviti".step_2
- assert_equal "abcble", "abcbiliti".step_2
- assert_equal "abcble", "abcbli".step_2
- assert_equal "abcful", "abcfulli".step_2
- assert_equal "abcless", "abclessli".step_2
- assert_equal "abclog", "abclogi".step_2
-
- assert_equal "abc", "abcli".step_2
- assert_equal "abd", "abdli".step_2
- assert_equal "abe", "abeli".step_2
- assert_equal "abg", "abgli".step_2
- assert_equal "abh", "abhli".step_2
- assert_equal "abk", "abkli".step_2
- assert_equal "abm", "abmli".step_2
- assert_equal "abn", "abnli".step_2
- assert_equal "abr", "abrli".step_2
- assert_equal "abt", "abtli".step_2
- assert_equal "abali", "abali".step_2
- end
-
- def test_step_3
- assert_equal "abc", "abc".step_3("")
-
- assert_equal "national", "nationalize".step_3("alize")
- assert_equal "nationalise", "nationalise".step_3("alise")
- assert_equal "national", "nationalise".step_3("alise", true)
- # Repeat the steps to ensure that the english-gb behaviour isn't sticky
- assert_equal "national", "nationalize".step_3("alize", false)
- assert_equal "nationalise", "nationalise".step_3("alise", false)
- assert_equal "national", "nationalize".step_3("alize")
- assert_equal "nationalise", "nationalise".step_3("alise")
-
- assert_equal "abction", "abctional".step_3("al")
- assert_equal "abcate", "abcational".step_3("ional")
- assert_equal "abcic", "abcicate".step_3("ate")
- assert_equal "abcic", "abciciti".step_3("iti")
- assert_equal "abcic", "abcical".step_3("al")
- assert_equal "abc", "abcful".step_3("")
- assert_equal "abc", "abcness".step_3("")
-
- assert_equal "abcabc", "abcabcative".step_3("cative")
- assert_equal "abcabc", "abcabcative".step_3("cativealic")
- end
-
- def test_step_4
- assert_equal "abc", "abc".step_4("")
-
- assert_equal "nation", "nationize".step_4("ionizeic")
- assert_equal "nationise", "nationise".step_4("ioniseic")
- assert_equal "nation", "nationize".step_4("ionizeic", true)
- assert_equal "nation", "nationise".step_4("ioniseic", true)
- assert_equal "nation", "nationize".step_4("ionizeic", false)
- assert_equal "nationise", "nationise".step_4("ioniseic", false)
- assert_equal "nation", "nationize".step_4("ionizeic")
- assert_equal "nationise", "nationise".step_4("ioniseic")
-
- assert_equal "abc", "abcal".step_4("ionalic")
- assert_equal "abc", "abcance".step_4("ance")
- assert_equal "abc", "abcence".step_4("ence")
- assert_equal "abc", "abcer".step_4("erance")
- assert_equal "abc", "abcic".step_4("ic")
- assert_equal "abcer", "abcerable".step_4("erableic")
- assert_equal "abc", "abcible".step_4("eribleic")
- assert_equal "abc", "abcant".step_4("ant")
- assert_equal "abc", "abcement".step_4("ement") # Check we handle overlapping suffixes properly
- assert_equal "abce", "abcement".step_4("ment")
- assert_equal "abc", "abcment".step_4("mentement")
- assert_equal "abc", "abcment".step_4("ement")
- assert_equal "abc", "abcent".step_4("ement")
- assert_equal "abc", "abcent".step_4("ent")
- assert_equal "abc", "abcism".step_4("ism")
- assert_equal "abc", "abcate".step_4("ate")
- assert_equal "abc", "abciti".step_4("ition")
- assert_equal "abc", "abcous".step_4("ously")
- assert_equal "abc", "abcive".step_4("ively")
- assert_equal "abc", "abcize".step_4("ize")
- assert_equal "abcion", "abcion".step_4("ion")
- assert_equal "abcs", "abcsion".step_4("sion")
- assert_equal "abct", "abction".step_4("tion")
- assert_equal "abction", "abction".step_4("ion")
-
- assert_equal "abcal", "abcal".step_4("") # No removal if suffix isn't in R2
- end
-
- def test_step_5
- assert_equal "abc", "abc".step_5("", "")
-
- assert_equal "abcl", "abcll".step_5("elele", "ele")
- assert_equal "abcll", "abcll".step_5("ele", "e")
-
- assert_equal "abce", "abce".step_5("", "")
- assert_equal "abc", "abce".step_5("", "ele")
- assert_equal "abc", "abce".step_5("elele", "")
- end
-
- def test_porter2_postprocess
- assert_equal "abc", "abc".porter2_postprocess
- assert_equal "abcy", "abcy".porter2_postprocess
- assert_equal "abcy", "abcY".porter2_postprocess
- assert_equal "aybcy", "aYbcY".porter2_postprocess
- assert_equal "aybcy", "aYbcy".porter2_postprocess
- end
-
- def test_stemmer
- TEST_WORDS.each do |base, stemmed|
- assert_equal stemmed, base.stem,
- "#{base} should have stemmed to #{stemmed} but got #{original.stem} instead"
- end
- end
-
-end
\ No newline at end of file
projects / porter2stemmer.git / blobdiff