Files
Nim/tests/stdlib/nre/replace.nim
Jacek Sieka 7d6cbf290a Error -> Defect for defects (#13908)
* Error -> Defect for defects

The distinction between Error and Defect is subjective,
context-dependent and somewhat arbitrary, so when looking at an
exception, it's hard to guess what it is - this happens often when
looking at a `raises` list _without_ opening the corresponding
definition and digging through layers of inheritance.

With the help of a little consistency in naming, it's at least possible
to start disentangling the two error types and the standard lib can set
a good example here.
2020-04-28 19:56:01 +02:00

23 lines
1020 B
Nim

include nre
import unittest
suite "replace":
test "replace with 0-length strings":
check("".replace(re"1", proc (v: RegexMatch): string = "1") == "")
check(" ".replace(re"", proc (v: RegexMatch): string = "1") == "1 1")
check("".replace(re"", proc (v: RegexMatch): string = "1") == "1")
test "regular replace":
check("123".replace(re"\d", "foo") == "foofoofoo")
check("123".replace(re"(\d)", "$1$1") == "112233")
check("123".replace(re"(\d)(\d)", "$1$2") == "123")
check("123".replace(re"(\d)(\d)", "$#$#") == "123")
check("123".replace(re"(?<foo>\d)(\d)", "$foo$#$#") == "1123")
check("123".replace(re"(?<foo>\d)(\d)", "${foo}$#$#") == "1123")
test "replacing missing captures should throw instead of segfaulting":
expect IndexDefect: discard "ab".replace(re"(a)|(b)", "$1$2")
expect IndexDefect: discard "b".replace(re"(a)?(b)", "$1$2")
expect KeyError: discard "b".replace(re"(a)?", "${foo}")
expect KeyError: discard "b".replace(re"(?<foo>a)?", "${foo}")