move rest of tests to testament (#16140)

* move rest of tests to testament
* Update tests/stdlib/tsums.nim

tests/stdlib/teditdistance.nim

@@ -0,0 +1,40 @@
+import std/editdistance
+
+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
+
+
+assert(editDistance("prefix__hallo_suffix", "prefix__hallo_suffix") == 0)
+assert(editDistance("prefix__hallo_suffix", "prefix__hallo_suffi1") == 1)
+assert(editDistance("prefix__hallo_suffix", "prefix__HALLO_suffix") == 5)
+assert(editDistance("prefix__hallo_suffix", "prefix__ha_suffix") == 3)
+assert(editDistance("prefix__hallo_suffix", "prefix") == 14)
+assert(editDistance("prefix__hallo_suffix", "suffix") == 14)
+assert(editDistance("prefix__hallo_suffix", "prefix__hao_suffix") == 2)
+assert(editDistance("main", "malign") == 2)