4.5/lib/assertions/throws.js

Monadic test assertions

"use strict";
var helpers_1 = require("../helpers");
function throws(f) {
    return new Throws(f);
}
exports.throws = throws;
var Throws = (function () {
    function Throws(f) {
        this.f = f;
    }
    Throws.prototype.verify = function (verification) {
        var f = this.f;
        try {
            var x = f();
            verification.failure("Did not throw, returned: " + helpers_1.inspect(x));
        }
        catch (e) {
            verification.success(e);
        }
    };
    return Throws;
}());
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