RUNREGEXP

runregexp is a convenience script for running a series of tests against a regular expression. It is intended for use in testing regular expressions for use with the Golang Standard Library regexp module. It compiles a single regular expression from a test config file and calls its MatchString method on a number of supplied candidate strings, some of which are expected to match and others of which are not. In any case where the expectation is not met, it displays the offending input string.

Use

Tests are put in a file called tests.json in the same directory from which the binary is run.

This file has the following format:

{
  "test_expression": "regular_expression_to_test",
  "fail_candidates": [
    "string_expected_NOT_to_match",
    ...
  ],
  "succeed_candidates": [
    "string_expected_to_match",
    ...
  ]
}