Test::Grammar for Raku

Unit testing for grammars. Because testing is important.

Installing

No dependencies, except Test which is a Rakudo core library, so the usual zef install Test::Grammar.

Running

Copied from the source, version there is the single source of truth:

use Test::Grammar;

parses-ok Test-Grammar,"num", 3, "33 parses OK";

my $test-output = q:to/EOC/;
ok 1 - bailout parses OK
ok 2 - «bailout» extracts token
1..2
EOC

has-tokens Test-Grammar, "test", <nok num description>, $test-output,
    "Complete tests";

token-is Test-Grammar,"bailout", "explanation",
    "Bail out! FOOBAR",
    "FOOBAR",
    "«bailout» extracts token";

for <foo bar b3> {
    parses-nok Test-Grammar,"num", $_, "$_ not parsed";
}

See also

There are very nice testing libraries out there:

• T emphasizes output and messages
• Testo is another opinionated test library.

License

(c) JJ Merelo, jj@raku.org, 2022

Licensed under the Artistic 2.0 License (the same as Raku itself).