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- import std/editdistance
- import std/assertions
- doAssert editDistance("", "") == 0
- doAssert editDistance("kitten", "sitting") == 3 # from Wikipedia
- doAssert editDistance("flaw", "lawn") == 2 # from Wikipedia
- doAssert editDistance("привет", "превет") == 1
- doAssert editDistance("Åge", "Age") == 1
- # editDistance, one string is longer in bytes, but shorter in rune length
- # first string: 4 bytes, second: 6 bytes, but only 3 runes
- doAssert editDistance("aaaa", "×××") == 4
- block veryLongStringEditDistanceTest:
- const cap = 256
- var
- s1 = newStringOfCap(cap)
- s2 = newStringOfCap(cap)
- while len(s1) < cap:
- s1.add 'a'
- while len(s2) < cap:
- s2.add 'b'
- doAssert editDistance(s1, s2) == cap
- block combiningCodePointsEditDistanceTest:
- const s = "A\xCC\x8Age"
- doAssert editDistance(s, "Age") == 1
- doAssert editDistanceAscii("", "") == 0
- doAssert editDistanceAscii("kitten", "sitting") == 3 # from Wikipedia
- doAssert editDistanceAscii("flaw", "lawn") == 2 # from Wikipedia
- doAssert(editDistance("prefix__hallo_suffix", "prefix__hallo_suffix") == 0)
- doAssert(editDistance("prefix__hallo_suffix", "prefix__hallo_suffi1") == 1)
- doAssert(editDistance("prefix__hallo_suffix", "prefix__HALLO_suffix") == 5)
- doAssert(editDistance("prefix__hallo_suffix", "prefix__ha_suffix") == 3)
- doAssert(editDistance("prefix__hallo_suffix", "prefix") == 14)
- doAssert(editDistance("prefix__hallo_suffix", "suffix") == 14)
- doAssert(editDistance("prefix__hallo_suffix", "prefix__hao_suffix") == 2)
- doAssert(editDistance("main", "malign") == 2)
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