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3d2f0e2c7c
* make more standard libraries work with `nimPreviewSlimSystem` * typo * part two * Delete specutils.nim * fixes more tests * more fixes * fixes tests * fixes three more tests * add formatfloat import * fix * last
41 lines
1.5 KiB
Nim
41 lines
1.5 KiB
Nim
import std/editdistance
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import std/assertions
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doAssert editDistance("", "") == 0
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doAssert editDistance("kitten", "sitting") == 3 # from Wikipedia
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doAssert editDistance("flaw", "lawn") == 2 # from Wikipedia
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doAssert editDistance("привет", "превет") == 1
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doAssert editDistance("Åge", "Age") == 1
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# editDistance, one string is longer in bytes, but shorter in rune length
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# first string: 4 bytes, second: 6 bytes, but only 3 runes
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doAssert editDistance("aaaa", "×××") == 4
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block veryLongStringEditDistanceTest:
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const cap = 256
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var
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s1 = newStringOfCap(cap)
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s2 = newStringOfCap(cap)
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while len(s1) < cap:
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s1.add 'a'
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while len(s2) < cap:
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s2.add 'b'
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doAssert editDistance(s1, s2) == cap
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block combiningCodePointsEditDistanceTest:
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const s = "A\xCC\x8Age"
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doAssert editDistance(s, "Age") == 1
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doAssert editDistanceAscii("", "") == 0
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doAssert editDistanceAscii("kitten", "sitting") == 3 # from Wikipedia
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doAssert editDistanceAscii("flaw", "lawn") == 2 # from Wikipedia
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doAssert(editDistance("prefix__hallo_suffix", "prefix__hallo_suffix") == 0)
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doAssert(editDistance("prefix__hallo_suffix", "prefix__hallo_suffi1") == 1)
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doAssert(editDistance("prefix__hallo_suffix", "prefix__HALLO_suffix") == 5)
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doAssert(editDistance("prefix__hallo_suffix", "prefix__ha_suffix") == 3)
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doAssert(editDistance("prefix__hallo_suffix", "prefix") == 14)
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doAssert(editDistance("prefix__hallo_suffix", "suffix") == 14)
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doAssert(editDistance("prefix__hallo_suffix", "prefix__hao_suffix") == 2)
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doAssert(editDistance("main", "malign") == 2) |