assert-match/dst/util/build_assertion.js

assert + matchers <3

'use strict';

Object.defineProperty(exports, "__esModule", {
    value: true
});

var _assert = require('assert/');

var _assert2 = _interopRequireDefault(_assert);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

exports.default = buildAssertion;


function buildAssertion(baseAssert, assertionName, matcher, operatorName) {

    var AssertionError = baseAssert.AssertionError || _assert2.default.AssertionError;

    var comparatorAssertion = typeof baseAssert[assertionName] === 'function' ? baseAssert[assertionName].bind(baseAssert) : _assert2.default[assertionName].bind(_assert2.default);

    var comparator = function comparator(actual, expected) {
        try {
            comparatorAssertion(actual, expected);
            return true;
        } catch (e) {
            return false;
        }
    };

    return function assertion(actual, expected, message) {

        var result = matcher(expected).match(actual, comparator);

        if (!result.match) {

            throw new AssertionError({
                actual: result.actual,
                expected: result.expected,
                operator: operatorName,
                stackStartFunction: assertion,
                message: message
            });
        }
    };
}
module.exports = exports['default'];