@masala/parser/src/test/parsec/tuple-parser-test.js

Masala Parser

import {C} from '../../lib/parsec/index';


export default {
    setUp: function (done) {
        done();
    },

    'expect p.first() to work':function(test){

        let text = 'abc';
        let parser = C.letter().rep().first();

        test.equal('a', parser.val(text));
        test.done();

    },

    'expect p.last() to work':function(test){

        let text = 'abc';
        let parser = C.letter().rep().last();

        test.equal('c', parser.val(text));
        test.done();

    },

    'expect p.at() to work':function(test){

        let text = 'abc';
        let parser = C.letter().rep().map(t => t.at(2));

        test.equal('c', parser.val(text));
        test.done();

    },

    'expect p.array to fail if not a tupleParser':function(test){

        let text = 'abc';
        let parser = C.letters().array();
        let found = false;
        try{
            parser.val(text);
        }catch (e) {
            found = true;
        }

        test.ok(found);
        test.done();

    }


}